Strongly felt earthquake below Berkeley, San Francisco area, California - January 4, 2018

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Update 11:49 UTC: Shaking map with possible related damage from the natural disaster specialists at CATnews (Risklayer - CEDIM), Karlsruhe, Germany. Map generated by Andreas Schäfer.

Screen Shot 2018-01-04 at 12.49.03

Update 10:58 UTC: Focal mechanism of this earthquake
Do beach balls looks like Chinese or Latin to you, check this article "Understanding Beach Balls"

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Update 10:57 UTC:  Shaking map of this earthquake

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Update 10:57 UTC: Seismogram as recorded in a seismological station in California

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Update 10:57 UTC: Based on the present earthquake parameters (Magnitude, Depth, Population, etc) and our experience with earthquake damage impact, earthquake-report.com does expect at least some slight damage like cracks in walls, fallen tiles, etc.

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Most important Earthquake Data:

Magnitude : 4.4

Local Time (conversion only below land) : 2018-01-04 02:39:37

GMT/UTC Time : 2018-01-04 10:39:37

Depth (Hypocenter) : 13 km

Depth and Magnitude updates in the list below.

Donation - long - San Francisco

Share your earthquake experience (I Have Felt It) with our readers.
Click on the "I Felt It" button behind the corresponding earthquake. Your earthquake experience is not only important for science, but also for people in the area as well as our global readership.

SRC Location UTC Date/time M D INFO
USGS Cupertino, Ca Jan 04 11:34 2.5 5 MAP I Felt It
  • Petaluma - just a few seconds, I\'m a taxi driver graveyard shift.
  • Santa cruz - Loud jolt woke me. Shaking folllowed with hardware on furniture rattling and banging,
  • San Francisco - About 5 seconds, woke me up, Sounded like the final dryer cycle that was not balanced. This quake had a up and down rather than a rolling sensation of past quakes I have experienced. No damage.
  • San Rafael - My doll cabinet shook and so did my house
  • Richmond CA - It was 2:40am in Ca and I was trying to go to the bathroom and then I felt the floor shaking and the sound was kind of loud.
  • Sonoma California - About 15 secs shaking and creaking of structure no damage
  • Monterey, CA - Very brief, not enough to wake someone up, I just happened to be awake.
  • San Francisco - A jolt woke me up, followed by moderate shaking for about 5 seconds. Things we creaking and rattling but nothing seems to have fallen.
  • Sunnyvale, CA - Woke me up, no damage.
  • Menlo Park - Woke up to shaking. Was able to talk with my husband about it before it stopped. Maybe 5-8 seconds. No property damage. Felt an aftershock after. I believe I also felt a tiny quake earlier than the big one. My lamp rattled for all three.
  • Concord - Felt shaking and heard some items shaking in shelves
  • San Francisco - I was woken out of sleep by a strong jolt, followed by a couple seconds of shaking. Thought it was a dream at first, but I know better, living here! No damage.
  • Los Altos - Jolt awoke me, initially it thought it was a sudden storm with extremely strong wind causing outdoor trees and building to shudder but I quickly realized it was a quake, lasted 5-6 secs.
  • San Francisco - Jolted me and my dog out of bed - lasted long enough for me to wake up, get out of bed (shaking still going on) and make it two steps to my closet door way. Once I reached the closet, the shaking stopped.
  • Cupertino - I was woken up; the shaking was apparent for about two seconds, yet no damage was done.
  • Livermore - Light shaking
  • Fremont - It woke me and my dog up. She jumped off the bed. No damage. It was 2:39 am this morning.
  • Corte Madera - Woke me up...shaking lasted a few seconds. No damage
  • Oakland - Seemed like 3-5 seconds. Woke us up from deep sleep at 2:43. No doubt this time that it was an earthquake. All glasses in china cabinet were rattling.
  • Lafayette - Felt shaking for a few seconds before the surge. Felt like a hill rolling under me.
  • Scotts Valley - I was a sleep and heard and felt sudden shaking, sounded almost like a sonic boom
  • SAN JOSE - It was about 2:41am when it stopped, lasted around 5 seconds. Nothing fell or was damaged, but enough shaking to hear a lot of rattling.
  • Berkeley - 3-4 sekundy. Obudzilam sie podczas drgań. Duzy hałas, łóżko bardzo się trzęsło. Półśpiąca nawet nie zdawałam sobie sprawy, że to trzęsienie ziemi - nie potrafiłam zlokalizować centrum hałasu, który zdawał się być wszechogarniający
  • San Francisco - 10 seconds with paint and dust coming of ceiling in our hotel
  • El Sobrante - My dog ​​and my wife woke up and realized, I had just fallen asleep, 2:39 a.m, strong!
  • Santa Cruz - The shaking woke me out of a sound sleep. Shook my house, which was felt on upper and lower levels. No damage, but it concerns me because of the wide spread, coming almost 100 miles from Berkley\'s epicenter, with that strong of a shake. Most reports only describe the immediate bay area...
  • Saratoga - Woke up with a jolt to hear rattling of the doors, windows and movement of my cot. Both my husband and I were up; dog didn\'t notice. Lasted about 5-7 seconds.
  • Los Altos - Moderate shaking
  • Daly City - I couldn\'t tell if it\'s side way or back and forth shake. It was scary and happened while sleeping with kids. Didn\'t know what to do if it\'s stronger.
  • Petaluma - Working on project late. Going to bed and felt a short roll. Saw blinds move.Eastside of 101 freeway,inPetaluma. Time after 2 a.m.No damage on top 3rd story new built apartment.
  • MOUNTAIN VIEW - Shaking lasted 5-10 seconds. Was woken up by the rattling sound. No damage, no displacement of articles in the house.
  • Berkeley - I\'m not sure it was an earthquake. I was on on a boat tide to the dock and I was wide awake at the time. I felt the entire boat shaking. Would an earthquake flow through water?
  • Sebastopol, CA - Was awake, working on computer. Definitely recognized as mild quake. Shaking/vibration lasted a few seconds. Xmas tree and lit candles shook enough for me to unplug lights/blow out candles. No damage and no other shocks felt.
  • San Francisco - Heard high-pitched noise, not unlike wood creaking; then short, violent vertical thrust, followed by 15 seconds of horizontal rolling. Strongest I\'ve felt in 25 years in SF
  • San Francisco - At 2:40am Pacific Time, a jolt followed by a few seconds of shaking. Nothing frightening.
  • Sausalito, CA - I woke up due to the shaking and sound. Was definitely scary and seemed like it lasted a long time. No damage thankfully
  • Monterey Bay California - Our little 1927 wooded house shook enough to wake us up. We felt about 5 seconds worth of a up and down rapid rumble. It felt like a 4 pointer. At first I thought I was dreaming until the next morning my husband said he felt it too, he was down stairs. I happen to be in the 1976 Guatemalen earthquake that measured 7.9 or some said 8.2, that one roared so long , we thought a Volcano erupted... 23 thousand people perished. Really scary.
  • San Jose - It was about 2:39 am, and I was on the computer playing video games and getting high. About 6 seconds the whole glass bongs set was shaking and I was about to wake up my parents grab my glass and go under the table or run out the house because I wasn\'t too sure if something more severe would shortly follow..
  • san francisco - Strong jolt. Short duration.
  • Santa Cruz, CA - I was up late reading, a little after 2:30am here, and things started swaying a few times.
  • Berkeley, CA - 5+ seconds, woke us up
  • Burlingame - Slight shaking which woke me up for round about 5 to 10 seconds. Noises from the walls and the room door
  • SOQUEL - Moderate shaking
  • USGS Berkeley, Ca Jan 04 10:39 4.4 12 MAP I Felt It
  • Fairfield, CA - I was laying in bed and it started shaking, I thought it was my dog at first but then realized that it might have been an earthquake. It lasted for about 5 seconds
  • Redwood City - Several loud bangs; shaking, aftershock almost immediately. Car alarm went off.
  • Marina, California - Light shaking
  • Dublin - Bed shaked for a second or 2
  • San Francisco - Woke up at 2:39 to shaking that lasted perhaps 8-10 seconds. Could hear crystal rattling in cabinet
  • San Francisco - Woken up from shaking and things falling off shelf
  • Vallejo - Minor shaking that lasted about 5 Seconds.
  • San Francisco - 5-10 sec loud noise from kitchen
  • Berkeley - Approximately 3 seconds
  • Guerneville - Weak shaking
  • san rafael - lasted at least 10 sec it happened around 2:43 am
  • San Francisco - Strong shaking occured at about 2:45am, and continued for about 10 seconds. Shaking was strong enough to wake me up, and knock over dishes from table and framed art to fall from wall.
  • San Jose - Moderate shaking
  • Berkeley - Strong but short duration. Maybe a few seconds. I don\\\'t think anything was damaged.
  • CONCORD Ca - At about 2:43 AM shaking
  • Vallejo - Very light shake maybe 2-3 seconds
  • San Francisco - Felt a moderate shaking lasting a few seconds at about 02:35, 4 January 2018.
  • Castro valley - Moderate shaking
  • Berkeley - Moderate shaking
  • Petaluma - Woke up at 2:44 AM to the house shaking Lasted approx 8-10 seconds
  • Rodeo - Moderate shaking
  • Richmond - 2 seconds no damage building definitely moved.
  • San leandro - Lasted about 5 seconds. Woke me up from sleep.
  • Vallejo - Woke up at 2:39 a.m. due to shaking that progressed from mild to moderate, then heard something break in my house. Both cats jumped off my bed a millisecond before it started.
  • san mateo - Light shaking
  • Berkeley - It lasted about 2-3 seconds.
  • Scott’s Valley - No damage. Shaking lasted maybe 10-15 seconds? Not sure I could see the whole room shaking, roof, walls, everything
  • San Francisco - Moderate shaking
  • San Francisco - In a hotel room and felt like a truck hit the building. TV shook on dresser, along with bed. I thought TV was about to fall forward. It was a strong shaking that woke me from sleep. Lasted about 6 to 10 seconds.
  • Oakland - 5 seconds - woke up everyone in the house.
  • Mill valley - Shaking woke me up. Very jarring. Slowed down after few seconds then a second wave of shaking hit.
  • San Francisco - No damage. I’m a light sleeper, but it quickly woke me up with a loud noise more than shaking. More like a loud jolt. I may be on bedrock.
  • novato - Weak shaking
  • San Francisco - strong jolt but short shaking about 6 seconds. No damage seen. Audible sounds of door shaking while closed. Strong enough to wake up the couch potato dog. I, as usual, woke up before it hit.
  • San leandro - Moderate shaking
  • San Mateo, CA - Strong shaking for a few seconds.
  • pleasanton - 2seconds
  • San Mateo - Lasted about 5 seconds. Nothing fell over. Some noise. Clearly felt the shaking.
  • CASTRO VALLEY - Strong shaking
  • San Francisco - Woke me up, felt shaking for a couple of seconds
  • Petaluma - I felt my bed move back and forth as if someone was pulling and punching it.
  • Santa Cruz - Stuff fell off the shelf
  • Redwood City - Woke up mild shakes
  • Novato - felt like short vibration perhaps a few seconds. Wood frame house makes creaking noise. No damage. 02.39 PST
  • Fremont - We (my self & my wife) felt a kind of shake and suddenly awaken due to the shake around 2:40am local time.
  • San Carlos - Moderate shaking
  • Oakland - Moderate shaking
  • San Francisco - Light shaking
  • Redwood City - I felt it after 2 am, a swaying motion. It woke me
  • El sobrante - The shaking lasted for about 8 seconds. Everything was shaking 📺. I was in the middle of having intercourse with my wife and everything just started vibrating. I live on a hill, so I’m scared the house could collapse on me.
  • Sonoma - I was playing A video game and thought that my boyfriend was opening the bedroom door but then I realised it was an earthquake
  • Vallejo - Light shaking
  • Greenbrae - In bed approx 2 30 am, felr bed shake
  • Petaluma - Moderate shaking
  • Daly city - Woke,me up from an ambien sleep. Everything shook maybe two waves. Noisy. More than 5 seconds.
  • South San Francisco - Felt rumbling which got stronger and stronger which turned into very hard shaking from side to side. Lasted approx 10 sec or more
  • san leandro - windows made 2 second rumble like giant tractor was rumbling outside office window, then a 2 second large KABOOM thundered from deep underground that simultaneously jolted the floor that freaked me out and then I just bolted down hallway out door to parking lot. Trying now focus on work but anxious next one will hit with out warning
  • Tiburon, CA - 5 -10 seconds
  • San Rafael, CA - Light shaking
  • Hayward - Weak shaking
  • Sonoma - Moderate shaking
  • Daly City - I awoke to the shaking of my bed! Definitely lasted more than 10 seconds, which I was about ready to run had it not stopped. No real damage (yet).
  • San Francisco - Big jolt. Scary. I yelled out. stopped quickly, maybe shook 4 seconds. Surprised there are no after shocks. Was centered right across the Bay in Berkeley.
  • SF Bay Area - Jolt plus shaking for quite a few seconds.
  • Hayward - It lasted a few seconds.
  • Concord - Strong shaking
  • Hayward - off of costa ricaAbout 2:40 am on 1/4/2018 I was woken by the equake, lasted apprx 2 secs. my bed was shaking and I heard my bathroom sliding glasses rattled. it scared my dog. No damage.
  • Napa - Apartment, upstairs.very quick, light, shake
  • South San Francisco - Felt rumbling/shaking which turned into very hard side to side shaking. Whole house felt like someone picked it up and was shaking it
  • Santa clara, ca - Woke me up with bed shaking. Lasted few seconds. No damage.
  • Novato - Moderate shaking
  • San Francisco - Moderate shaking
  • Palo Alto - 10s shaking. I woke up screaming. Everything was shaking
  • SF - The whole building is shaking very wildly. I got to jump off the bed.
  • SAN MATEO - Light rumbling and then a light jolt. About 15 seconds. Not as strong as the earthquake in Napa last year but very noticeable.
  • Pleasanton - Light shaking
  • Union City, CA - It woke me up. I was asleep on the couch. I sat up and looked at the wall behind me which was shaking for several seconds.
  • San Francisco, CA - Strong shaking
  • Martinez - Table rattled like it had been kicked and something fell off the shelf!
  • Hayward - It lasted a few seconds but really strong shaking my closet door was shaking I woke up my kids and my husband It was scary!
  • CASTRO VALLEY - Awake thought house was hit Then the shaking continued Knew it was earthquake
  • San Francisco - I was awake and felt shaking for about 15-20 seconds. Nothing really rattled or fell. Time check: 2:40AM.
  • San Bruno - Been living here 13 years, and only Earthquakes I ever experienced in the past were half second shakes if you can call it that and loud booms. Today, place shook for about 4 seconds and sent some cabinet items falling. Actually heard it before feeling it. Amazing on how much pressure it takes to move this land.
  • Castro Valley - Was fast asleep, heard/felt a deep rumble. Woke to a moderate shaking that lasted less than 5 seconds
  • Petaluma - Woke me up - like someone was shaking the bed, just a few seconds.
  • Rohnert Park - Shaking enough to wake me up 2:30 am, nothing fell.
  • Walnut Creek - Light shaking
  • Santa Cruz Ca - 2:40 got woken up out of sleep!!! was loud and a big jolt shaking lasted about 5 seconds
  • San mateo - Duró uno 6 segundos Aproximadamente.... el movimiento fue intenso pero corto. La cama se movió bruscamente
  • Los Gatos - My husband and I were awakened as our bed was being shaken on the second floor. Its the strongest one we have felt in 4 years.
  • San Francisco - I was woken up by the movement and noise of the closet sliding doors.
  • San Francisco - I was woken up by the movement and noise of the closet sliding doors.
  • Redwood City CA - sharp crack then shaking for about 5 seconds. Our glass shower door corner had a chip knocked out of it. It must have moved down and hit the tile floor during the quake.
  • San Francisco - I was woken up by the movement and noise of the closet sliding doors.
  • Capitola - Windows rattling woke me up; felt light shaking that seemed to last about 15-30 seconds. No damage, and nobody else in the house felt it.
  • Walnut Creek - Enough to wake almost every body up and definitely frightened pets
  • san francisco - couple minor jolts followed by one strong single shake total length about 2-3 sec tops
  • Dublin - Felt like a very sharp strong jolt, my apartment building jolted, lasted acouple of seconds, after the strong jolt weak shakes for 2-3 seconds.
  • Novato - We were up late and felt the shaking of our house 5 or 6 seconds and notice the time was 2:39 am. We are at the Petaluma River mouth. No damage noticed.
  • Rohnert Park - I was asleep and I felt the bed was moving. I though it was the cat but i don\'t have a cat anymore. very small
  • Walnut Creek - It woke us up at 2:39am. I looked at the clock when I realized what was happening. It felt like the room was shaking for approx. 3-5 seconds. No damage but some items fell over on shelves.
  • San jose - 1 second. It only shook one time but it was strong
  • EMSC San Francisco Bay Area, Calif. Jan 04 10:39 4.4 13 MAP I Felt It INFO
  • Santa Cruz - Light shaking
  • San Jose - About 5 seconds - back and forth shaking
  • Santa cruz - Light shaking
  • Oakland - Moderate shaking
  • Dublin, Ca - Moderate shaking
  • San Francisco - some items fell from bookcases, lamp tilted.
  • San francisco - Weak shaking
  • San Francisco - Just about 3-5 seconds in the second floor of my home. No damage at all, did not move furniture, fixtures on wall.
  • San Leandro - Strong shaking
  • Sonoma - Very weak shaking
  • San Lorenzo - Maybe 5 seconds of shaking, some items fell off shelves but nothing severe.
  • Alameda, CA - Moderate shaking for approximately 4 seconds. Nothing knocked off shelves, no noticeable after shocks.
  • Sunnyvale - Moderate shaking
  • San anselmp - Moderate shaking
  • Sam jose - Moderate shaking
  • San Francisco - 20 seconds of rolling and shaking, house rattling
  • Los Gatos - Lasted about 10 sec door and bed shook
  • Castro Valley - Moderate shaking
  • Pittsburg - Weak shaking
  • Pittsburg - Weak shaking
  • El Sobrante - Strong shaking
  • REDWOOD CITY - Very short duration, but I felt like the house was being knocked over
  • Palo alto - 2-3 seconds
  • Oakland, California, USA - 5-7 seconds. House shook, woke me up, @2:40am.
  • Campbell - Moderate shaking
  • Santa Clara, California - No Damage, shaking lasted around 8 seconds
  • Menlo Park - Woke up to lamp shaking on nightstand.
  • richmond CA - 7 seconds
  • Fremont - lasted for 3-4 seconds
  • San Francisco - Were about to had sec and windows started shaking idk earthquake or some secret power saving her sexy pussy !
  • Concord - I was sleeping and my room began to shake and my window rattled for maybe 5-10 sec
  • Castro Valley - Approx. 3 seconds
  • Mountain View CA - Approx 3-5 seconds
  • Redwood City - 20 second st Thanks man
  • el cerrito ca - no damage but lasted maybe 20 seconds
  • san francisco - The house both floors shook for 4-5 seconds - I live in the downstairs garage level rooms and definitely has my attention.
  • sonoma - Around 2:30 in the morning a back and forth shaking woke us up. It lasted about twenty seconds.
  • San Francisco - Shaking woke me up. No damage.
  • Martinez - Felt shaking. Things in house were rattling. Daughter woke up.
  • Stockton - I rarely experience earthquakes but whenever I feel one, I get excited. But other places have it worse, and I pray to God everything will be okay... but the earthquake that happened lasted for two seconds
  • San ramon - Moderate shaking
  • San francisco - Moderate shaking
  • Menlo park - I was froze for a bit. Last for few seconds. Maybe 3 to 4.
  • Pinole - 3 seconds shaking, woke me up, my bed shake, 2:40am 1/4/18
  • San Francisco - Moderate shaking
  • Castro Valley - Woke up my entire household!
  • San Leandro - It lasted for 7 seconds, I was really shocked because I never experienced the feeling of an earthquake. I am a student in high school and although we practiced in school a lot about war quake drills, I never thought that an earthquake will really happen during school, but to experience an earthquake kit side of school is really fascinating.
  • Cathedral Hill - Quick jolt. My glass shower doors rattled and scared me awake.
  • Dublin - I felt a small shake that lasted two seconds or so, following a strong shake for couple of seconds.
  • Hillsborough - 3 seconds. Woke me up.
  • San Jose - I felt a very light shaking in East San Jose, near Evergreen area at around 2:40 AM today Jan 4, 2018. It lasts for about 3-5 seconds, and luckily nothing was damaged since it was so quick and small in magnitude, couldn\\\'t tell what exactly was it.
  • San Francisco - Weak shaking
  • Sausalito - Things fell off the shelf. 2:41am it lasted 5 seconds Or less
  • San Francisco - Light shaking
  • Redwood City - lasted just a few seconds, a sudden jolt. No damage to anything inside but all residents of house were awakened. Dog was not disturbed. No idea of damage as it is now 0300 hours PST and I am going to sleep. Quake was at approx. 0240 PST.
  • San Mateo - 7-10 seconds. No damage
  • Hayward - About 2:40 am on 1/4/2018 I was woken by the equake, lasted apprx 2 secs. my bed was shaking and I heard my bathroom sliding glasses rattled. it scared my dog. No damage.
  • Daly City - It was a long shaking and rattling, at least 10 seconds.
  • San Francisco - 6 seconds, no damage. Our vacuum fell over, and our cat got really scared and jumped out of the bed.
  • Walnut Creek CA - Moderate shaking
  • San francisco - Light shaking
  • San Rafael - Felt the shaking long & strong enough to be awaken from deep sleep.
  • Monte Rio - Shaking lasted ~5 sec after it woke us up. No damage.
  • Stanford - I awoke to my bed on the fourth floor moving back and forth
  • Alameda, CA - Woke up from shaking for a few seconds then it stopped.
  • San fraancisco - Light shaking
  • San Francisco - Moderate shaking
  • Windsor - Good Morning. I was awake drinking coffee and the couch underneath me started to shake at app 2:49 am on 1.4.18. I could tell right away it was an EQ and I looked towards my plants to confirm and yes they were shaking. It only lasted about 10 seconds and I believe there is zero damage. My guess was a 4.5 as I have lived in CA for 56 years. God Bless.
  • Walnut Creek - This earrhquack was strong enough to wake me up, and lasted a while. Just read it was a magnitude 4.4 below Berkeley.
  • fremont - Moderate shaking
  • Berkeley - Light shaking
  • San Francisco - Light shaking
  • San Jose - Woke up as strong shaking of my bed and the walls trembled
  • San Pablo - Approximately 10 seconds
  • Daly City - The earthquake was strong enough to woke me and a child up. It felt like it lasted about 3 sec. No damage done.
  • Pacifica, California - short jolt couple of seconds
  • Berkeley - I was already awake and heard rattling and creaking in the house. It was a sharp shaking about 3-5 seconds. No damage.
  • San Jose, CA - Moderate shaking
  • Daly City - Felt a strong shake.
  • San Jose - 2 seconds, building rattled
  • Berkeley - woke us up from deep sleep. A few rocking jolts lasting 4 seconds or so. No damage. Nothing fell off shelves, but rocking continued, diminishing, after quake for a couple more seconds.
  • Dublin - Bed shook for a few seconds, woke us up. No damage.
  • San francisco - 10 sec. Aprox.
  • San Francisco - It was at least 2-3 seconds and the house rattled. Our dog seemed agitated about an hour prior to the quake barking three times from his resting state. We didn’t hear any disturbance but he kept barking..
  • Oakland, California - Lasted 3 seconds but felt more like a 5 on the Richter Scale. Maybe even a 5.5. I have lived through many earthquakes, including Prieta Loma, so I have many reference points.
  • Redwood City - Moderate shaking
  • San Francisco - Pretty good jolts, lasted only 10 seconds
  • San jose - This woke me up I felt it in my bed
  • Richmond, CA - Building creeping, and couch went on a “wave” 3x
  • san francisco - Weak shaking
  • Pleasant Hill - Awakened by loud and very pronounced shaking. Scared me and my three cats (who are still hiding). I’ve not been up to assess damages, but I didn’t hear anything fall.
  • Oakland - My dogs felt it too.
  • Oakland - No damage about 15 seconds of shaking - woke up entire block.
  • Berkeley - No damage. I felt the shaking for probably two seconds.
  • Gilroy - Shaking woke me up in Gilroy Garlic About 5 seconds No damaged
  • San Francisco - Probably around a minute
  • San Mateo - Woke me up. Bedwalls, windows shaking. Several seconds long.
  • San Francisco - Few second at 2:37a woke from sleep due to sliding doors rattling at Hyatt Regency hotel.
  • San Francisco - <1 second rippling jolt in downtown San Francisco in Nema on 5th floor, NEMA building (@ 10th & Market streets) felt the shockwave starting in my feet then it rolled all of the way up my body.
  • Richmond, CA - Heard it first, then felt it roll up 18th Street and shook the house.
  • sanfranscio - Moderate shaking
  • Daly City - Sleeping woke me up. Shaking for a few seconds.
  • San Francisco - House shook and items rattle, felt like it was two minutes long but probably seconds only in reality. Strong enough to wake me up at 2:43am.
  • Scotts Valley CA - 2:40 AM 5-10 seconds, fairly sharp, no gradual buildup from early waves
  • El Cerrito CA - Moderate shaking
  • Sonoma - Light shaking
  • Petaluma, CA - Woke up at exactly 239am go check my phone, moment later the bed shook back and forth for maybe 3 seconds. No damage.
  • San Francisco - It was shaking about 7-8 seconds with some noise
  • San Francisco California - Moderate shaking
  • Cobán - 6-7 seconds. No damage.
  • Coban - Dome reports include Guatemala city
  • Menlo Park - very rapid, seemed to be vertical motion rather than side-to-side swaying. Woke me up. Perhaps 10 seconds, not sure about duration.
  • San Jose - Awakened from deep sleep. Shaking, rattling of glass doors, household items. Lasted approximately 8-10 seconds.
  • Livermore - Woke up to shaking of bed. Even woke up the dogs.
  • Fremont - Weak shaking
  • Milpitas CA - I’m on the seventh floor of the Embassy suites in Milpita‘s. No damage. Shaking lasted about 5 to 10 seconds. I was already awake as I am on New York time, traveling here for business.
  • San francisco - No damage, shaking was very brief, but felt strong enough
  • San Francisco - About 6-8 seconds of shaking. It shook the hospital bed with a patient in it & rolled left & right in ICU.
  • santa rosa - Maybe 2 seconds.No damage
  • Union City - Was awake. Felt 4-7 seconds of mild shaking of house at approximately 2:40 am, Thursday, Jan. 4, 2018. Nothing fell on the floor. Woke up my wife. No major damage occurred. Perhaps it released some pressure off the Hayward fault line. So far by the grace of God no report of damage or injuries.
  • Larkspur CA - 2:49am light to moderate shaking 5-10 seconds, woke my family, no damage
  • Richmond, Ca - awakened at about 2:45a.m. by violent shaking of bed in an east-west direction accompanied by sound. Very brief - a matter of a few seconds with no repeat.
  • salinas,ca - Quake was JUST enough to make the house creak a little, almost like a big truck going by.But it wasn\\\'t a truck, must have been the 4.4 quake that happened up in Berkeley, CA at 2:30 AM this morning
  • San Francisco - I was asleep and got woken up lasted about 15 sec no damage
  • San Francisco - Earthquake was strong enough to wake me up and I’m normally a deep sleeper. My FitBit data shows I woke up at 2:38am and I believe that’s when it actually started, although it was 2:39am when I checked the time a few seconds after it ended. It occurred in two distinctive series of brief shakes. Light to moderate. No visible damage.
  • Walnut Creek - Enough to wake people up and to frighten pets
  • GEOFON Central California Jan 04 10:39 4.3 10 MAP I Felt It INFO
    USGS Westley, Ca Jan 04 09:22 2.5 2 MAP I Felt It
  • Fairfax- San Anselmo - sounded like thunder; the concrete slab under my feet seemed rise up and be moving; was it a quake or a large meteor impacting the earth? but only lasted 4-6 seconds; approx 2:39 AM Jan 4, 2018

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    People :
    Felt indoors; hanging objects may swing, vibration similar to passing of light trucks, duration may be estimated, may not be recognized as an earthquake.
    MMI IV (Light shaking) ?
    People :
    Generally noticed indoors but not outside. Light sleepers may be awakened. Vibration may be likened to the passing of heavy traffic, or to the jolt of a heavy object falling or striking the building.
    Fittings :
    Doors and windows rattle. Glassware and crockery rattle. Liquids in open vessels may be slightly disturbed. Standing motorcars may rock.
    Structures :
    Walls and frames of buildings, and partitions and suspended ceilings in commercial buildings, may be heard to creak.
    MMI V (Moderate shaking) ?
    People :
    Generally felt outside, and by almost everyone indoors. Most sleepers awakened. A few people alarmed.
    Fittings :
    Small unstable objects are displaced or upset. Some glassware and crockery may be broken. Hanging pictures knock against the wall. Open doors may swing. Cupboard doors secured by magnetic catches may open. Pendulum clocks stop, start, or change rate.
    Structures :
    Some large display windows cracked. A few earthenware toilet fixtures cracked.
    MMI VI (Strong shaking) ?
    People Felt by all. People and animals alarmed. Many run outside. Difficulty experienced in walking steadily.
    Fittings :
    Objects fall from shelves. Pictures fall from walls. Some furniture moved on smooth floors, some unsecured free-standing fireplaces moved. Glassware and crockery broken. Very unstable furniture overturned. Small church and school bells ring. Appliances move on bench or table tops. Filing cabinets or "easy glide" drawers may open (or shut).
    Structures :
    Slight damage to buildings with low standard. Some stucco or cement plaster falls. Large display windows broken. Damage to a few weak domestic chimneys, some may fall.
    Environment :
    Trees and bushes shake, or are heard to rustle. Loose material may be dislodged from sloping ground, e.g. existing slides, talus slopes, shingle slides.
    MMI VII (Very strong shaking) ?
    People
    General alarm. Difficulty experienced in standing. Noticed by motorcar drivers who may stop.
    Fittings :
    Large bells ring. Furniture moves on smooth floors, may move on carpeted floors. Substantial damage to fragile contents of buildings.
    Structures :
    Unreinforced stone and brick walls cracked. Low standard buildings cracked with some minor masonry falls. A few instances of damage to buildings of ordinary workmanship. Unbraced parapets, unbraced brick gables, and architectural ornaments fall. Roofing tiles, especially ridge tiles may be dislodged. Many unreinforced domestic chimneys damaged, often falling from roof-line. Water tanks Type I burst. A few instances of damage to brick veneers and plaster or cement-based linings. Unrestrained water cylinders (hot-water cylinders) may move and leak. Some common windows cracked. Suspended ceilings damaged.
    Environment :
    Water made turbid by stirred up mud. Small slides such as falls of sand and gravel banks, and small rock-falls from steep slopes and cuttings. Instances of settlement of unconsolidated or wet, or weak soils. Some fine cracks appear in sloping ground. A few instances of liquefaction (i.e. small water and sand ejections).
    MMI VIII (Severe shaking) ?
    People Alarm may approach panic. Steering of motorcars greatly affected. Structures : Low standard buildings heavily damaged, some collapse. ordinary workmanship buildings damaged, some with partial collapse. Reinforced masonry or concrete buildings damaged in some cases. A few instances of damage to buildings and bridges designed and built to resist earthquakes. Monuments and pre-1976 elevated tanks and factory stacks twisted or brought down. Some pre-1965 infill masonry panels damaged. A few post-1980 brick veneers damaged. Decayed timber piles of houses damaged. Houses not secured to foundations may move. Most unreinforced domestic chimneys damaged, some below roof-line, many brought down. Environment : Cracks appear on steep slopes and in wet ground. Small to moderate slides in roadside cuttings and unsupported excavations. Small water and sand ejections and localized lateral spreading adjacent to streams, canals, lakes, etc.
    MMI IX (Violent shaking) ?
    Structures Many low standard buildings destroyed. Ordinary workmanship buildings heavily damaged, some collapse. Reinforced masonry or concrete buildings damaged, some with partial collapse. Buildings and bridges designed and built to resist earthquakes damaged in some cases, some with flexible frames seriously damaged. Damage or permanent distortion to some buildings and bridges, designed and built to normal use standards. Houses not secured to foundations shifted off. Brick veneers fall and expose frames. Environment : Cracking of ground conspicuous. Landsliding general on steep slopes. Liquefaction effects intensified and more widespread, with large lateral spreading and flow sliding adjacent to streams, canals, lakes, etc.
    Tell us your experience and how many seconds the shaking lasted + let us know if your property has been damaged (even slight damage). (max. 500 characters)
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