Moderate earthquake in Wyoming (near Lander)

Update September 24th:
One single report of minor damage comes from Lander country, where the floor of a resiental house cracked.

An earthquake with Magnitude 4.9 happened in western Wyoming. The quake was felt with strong intensity in towns close to the epicenter. Minor damage is possible.
A magnitude 4.0 quake in Utah, which was preliminary given instead of this quake, was a hoax.

If you felt this quake: please tell us. (Use form below)

Nearby Cities
16km (10mi) W of Fort Washakie, Wyoming
57km (35mi) W of Riverton, Wyoming
158km (98mi) N of Rock Springs, Wyoming
167km (104mi) N of Green River, Wyoming
341km (212mi) NE of Salt Lake City, Utah

Most important Earthquake Data:

Magnitude : 4.8

Local Time (conversion only below land) : 2013-09-21 07:16:29

GMT/UTC Time : 2013-09-21 13:16:29

Depth (Hypocenter)  : 5 km

Depth and Magnitude updates in the list below.

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.

Refresh this list
SRC Location UTC Date/time M D INFO
USGS Fort Washakie, Wyoming Sep 21 13:16 4.9 5 MAP
  • Green River, WY - I woke up to my perfume bottles on my dresser clinging together, sat up to feel the bed shaking.... Weird feeling thats for sure!!
  • GEOFON Wyoming Sep 21 13:16 5.2 10 MAP
  • Worland, WY - I was sitting in the house. I felt it and heard it for about 2 seconds at 7:19+/- AM. Sept. 21, 2013
  • Thermopolis - We felt it & heard it, scared the dog!
  • Green River, WY - Child was awakened from sleep as bunk bed shook. Also woke a second child who reported first child's bed was rattling.
  • thermopolis - thought someone was rocking the RV at 07:30ish didnt even realize it was and earthquake tell may sister called at about 09:00 🙂
  • rock.springs - Was in bed and felt shaking and vibration. Looked at clock and it was 718am.
  • Farson,WY - noticed light moving and bed shock a little
  • Lander, WY - I heard this quake more than felt it. I was standing up getting ready to take my dog out for a walk. I heard a loud rumbling noise like a big truck or tank rolling down the road, or a heavy sliding door being moved upstairs. My dog just looked at the door. The noise was a rumbling rather than a rattling sound, 20-30 seconds long. This was at about 7:17am.
  • Canyon Creek, Bighorn Mountains - Didn't really feel it but heard it. Was at our cabin in the bighorns.
  • EMSC Wyoming Sep 21 13:16 4.8 5 MAP I Felt It INFO
  • Old Faithful - Five Times from approx 5:10 am to 5:12. Lodge cabin very close to Old Faithful geyser. First shake was strongest. Those that followed were similar with decending strength.
  • Old Faithful Inn - This is a new quake at 9:53 am ..third floor of inn
  • Midway Geyser Basin - Mild shaking of boardwalk and thunder sounds for a few seconds on Sunday 14/09/13 at around 10.20 am
  • Old faithful - About 5.10 am the room started shaking and woke me up
  • Snow lodge Western Cabins - Felt strongest jolt at about 0510 MDT. Entire cabin shook. Felt several smallerbjolts, with most significant about 0517. Also was in cabin for the quake that hit at about 0954, whih did not feel quite as strong as the 0510 mdt one.
  • Old Faithful Snow Lodge - Woke at 5:AM with bed shaking woke up my husband and self and then there was a more mild shaking 10 minutes? later.
  • Muncie - I was sleeping and woke up to my bed slightly shaking for about 3 - 5 min. I am the only one home.
  • Madison Campground - My husband and I set an alarm to wake up at 5:00am Sunday Sept. 15, 2013. We were staying in the Madison Campground when shortly after waking we felt our vehicle shaking and my husband stated "that's an earthquake." The first quake caused moderate shaking of our van. We felt to smaller quakes shortly after which caused only slight rocking of our van.
  • rock springs - House shook.
  • Thermopolis - The entire building moved from north to south several times lasting about 4 to 5 seconds.
  • Big Piney - Short shake, followed by rolling.
  • Lander, WY - The metal building shook without making noise.
  • 4 miles East of Pavillion - I was wide awake, but still in bed. It shook, and I thought, who did that? I'm alone - no people or pets in the house.
  • Lander, Wy - Awakened by loud crash, lasting about 1-2 seconds, as if something had hit the wall.
  • Lander, WY - short intense, two distinct shakes
  • Merna, WY - Felt shake and heard doors rattle, saw TV move
  • 15mi. E. of Dubois - Shook my house for a few seconds.
  • Thermopolis, Wyoming - Woke everyone up!
  • Lander - Heard a loud boom like a jet breaking the sound barrier and the cabin shook for a few seconds, followed by a lesser after shock.
  • Hudson, WY - We were awakened by the shaking of our bed.
  • Horse Creek, Wyoming - house shook, furniture rattled, followed by rumbling noise outside for 2 to 3 seconds
  • Sinks Canyon near Lander - occurred approx. 7:14 and seemed to last 15-25 seconds. Dishes rattled in kitchen cabinets and something small fell.
  • Lander, WY - First one I've experienced - Sounded like a sonic boom.
  • Rock Springs - Thought a gust of wind blew and shook the roof but the drapes weren't moving in the breeze. I am in north Rock Springs by the Rec Center.
  • Rock Springs, Wy - Things rattled inside and then the house shook.
  • Rock Springs - I heard something fall of a shelf but that was it
  • Union Pass - 12 miles west of Dubois in the mountains. Woke us up, shook whole house.
  • Basin WY - Felt house shake 1 to 3 seconds
  • Lander WY - I was sleeping and I felt something shake me a wake, like a washing machine was rattling in my room.
  • Kinnear, Wyoming - was still asleep when I felt like something hit the side of my mobile home followed by shaking and then a wave like feeling. I thought that maybe a cow had hit the wall where I was sleeping. It lasted for about6-7 seconds.
  • Lander, WY - 0715,bed moved sideways,like a hand shoved it!
  • Pinedale, WY - Bed was shaking so strongly it woke me up
  • Central Thermopolis - About 7:15am my water bed shook strongly. Blamed it on the dog under the covers as ceiling light fixtures not swinging back & forth as usual. Lasted 3-4 seconds?
  • Thermopolis - Felt and sounded like a sonic boom with shaking. Dogs ran under the table.
  • Rock springs - I felt my bed move and it sounded like my door slammed.
  • Ethete - I was lying in bed felt the bed and heard the tv shaking
  • Green River, WY - Never would have caught it if the house hadn't been completely silent. Heard the glass doors on the fireplace shaking back and forth slightly- they do that occasionally when the wind blows really hard, but it was dead calm this morning. Also some creaking in the house.
  • Thermopolis, WY - Felt the bed shaking (I was already awake). Soundid like an object hit the roof and ran (as if a large dog) across the roof from north-east to south-west.
  • Mill Creek Village, Wyoming - 7:17 a.m. Felt a strong shaking of the Earth, shook my bed and like a quick turn of the earth!
  • Lander - Was walking across livingroom and felt like my kids were running threw the housebbut they were asleep still.
  • Lander - I felt a slight shake while lying in bed and said to my wife " I think we just had an earthquake" as soon as I had said that there was another shake with more intensity and longer duration (less than 1 second) that rattled the walls and toppled a piece of artwork from a top shelf. I then said "that was definitely an earthhquake" She slept through it all so I found your site to confirm that i wasn't dreaming. Thanks.
  • Lander, WY - Shook the bed, a few on things on the shelf. Kids said they thought the tv was going to fall off the shelf. Very similar to the one I felt several years ago about four hours west of here.
  • Lander - Was in bed when the whole house was jolted at 7:17am. It felt like something in the house had collapsed. I got up and looked around, but couldn't find any damage.
  • Lander - Strong, sharp shaking woke me. It lasted just a few seconds. Being from California, I predicted about a 4.5.
  • Boulder, Wyoming - While in the woods up pocket creek hunting was sitting on a log and felt mild shaking
  • Rock Springs - It woke me up suddenly, was really confused because by the time I fully awoke there was nothing. Logged on to the internet to discover that friends had also felt it.
  • Lander - I was in bed asleep, so I wasn't aware of shaking, but I was startled awake by a loud crashing noise that seemed to be coming from under the bed, or near the head of the bed. (The bed's head is against an outside wall facing toward Fort Wahsakie, and the windows on that side were all open.) I got up to check the house to see what had happened, but couldn't find a problem. Later heard about the earthquake.
  • Thermopolis - Felt tremor and lampshades were jiggling...then all normal dog was whimpering for about 15 minutes before it hit and as soon as it was over,calmed down again.
  • Thermopolis - Moved my computer chair. My husband felt a strong shaking while sitting in a chair.
  • Lander - First the roof made a loud sound and then the whole house shook for a couple seconds!
  • Rock Springs, Wy - It was between 5-8 AM...I'm not sure what time it was, but I was sitting in my living room when I felt some kind of shaking. Because I live in an apartment, I thought it was someone's washing mach. But as I kept feeling it, it was definitely not a washing mach. My door rattle and other things rattled, but it was mild.It was like a vibrating machine where the batteries were going dead, but consistent/lasted about a minute. That's when I thought for sure it had to be an Earthquake.
  • Riverton - felt it at about 7 clock i was half asleep then my bed started to shake and I woke up quickly. Just lasted a few seconds.
  • Lander - Was asleep. Awakened to bed shaking and pictures rattling on walls. Lasted a few seconds.
  • Basin, Wyoming - Lasted just seconds but shook my entire house at approx. 7:15 am 9/21/2013
  • Rock Springs - It felt like when the washing machine goes in to spin and is unbalanced and kind of shakes the house. I live in a mobile home so it shook pretty good. I felt it around 7am this morning. It lasted only about 15-30 seconds.
  • Lander, WY - Only lasted several seconds but felt hours shudder was a scaring feeling
  • LaBarge Wy. hwy 189n - About 7:20 have dirt basement and knocked some of the dirt down on the floor heard it falling muffled boom.
  • Pinedale - Felt like someone backed into my house
  • Boulder, WY - First came a loud, roaring sound and then the shaking. I ran out of the house to see if a plane had crashed; my husband thought someone had crashed into our shop with a truck. The shaking only lasted a few seconds.
  • Teton Village - Was at work leaning against a counter and felt's a very high-end "solid" building so thought it strange for it to shake. Didn't think anything about it until I was driving home and NPR news mentioned a 4.9 earthquake in western Wyoming...that's when I was like "whoa" that's what I felt today!
  • Lander,WY - First boom was lighter I wondered what it was. Seconds later loud boom entire house/window shook, I thought it was a sonic boom. More of a jolt. Just a reminder to always be prepared.
  • Rock Springs, WY 1 Street over from Smit - I was resting in bed, a little after 7 am on Saturday, Sept. 21. I felt the bed or house shake for maybe 20-30 seconds. It acutally did concern me a bit. I was pretty sure it was an earthquake since large trucks pass by and I never feel that kind of shaking/tremor/vibration.
  • Big Horn mts. Above Hunter - I was sitting on a large rock hunting, and felt a slight shaking for about 3 sec.
  • Lander - I was asleep. I thought my grandma felt out of bed. I was terrified.
  • Pinedale - My wife woke my up this morning shortly after seven this morning if I felt the house shake. She asked me if it was an earthquake. She reported that the house vibrated and a couple of seconds later it did it again. I must have been sleeping pretty well, since I didn't feel a thing. Since no machines were out working this morning, we decided to look it up to see if there was an earthquake.
  • Lander,Wy. - Was having sex,the bed started moving sideways! I thougth "WOW" what an orgasm! Let's do that again.
  • Thermopolis - It was 7:17 when we looked at the clock. I was woken up by my cat, he jumped up from sleeping by my side and he started running around the living room. With in seconds my room mate ran up the stairs from the basement and was worried and freaked out claiming we had an earth quake. Not sure who to contact, or whether it was truly an earthquake we went back to sleep. My room mate felt the movement and woke up, she ran up the stairs and felt the stairs moving on her way up stairs. A contact website
  • Green River. WY - I was sleeping in my bunk bed when I was woken up by my bed shaking at the same time this earthquake occurred.
  • Green River, Wy - Minutes after 7am, I was sitting down in the kitchen table, drinking tea and reading the news on my notebook. I notice the table started to shake lightly but I thougt I was causing it with my arm resting in the table. I paid attention to other objects in the kitchen, and for a few seconds I thought I heard some objets to vibrate very light, almost unperceptible but I was not completely sure. It lasted a few seconds and first thing I thought was "is the land shaking?"
  • Thermopolis - I thought it was a dream and during that transiotn from dreaming to conciousness, I thought it was the dog and cat being too rowdy. My wife who is from Japan put everything into perspective while she laughed.
  • Lander - Sitting up on my Hotel bed - room started shaking. quit after a couple of seconds and then another wave of shaking (like it was going east to west). I heard someone call it a "double roller" which seemed to fit very well. Hotel Clerk said they had to move one guest because the electricity in his room began acting up after the event.
  • Ten Sleep, WY - Shook the house, only lasted 3 or 4 seconds.
  • Thermopolis - Shaking of house and furniture for 5 to 6 seconds.
  • Afton, WY - Still sleeping in bed, I was awakened by a mild shaking
  • Rock Springs,WY - I was sitting on the couch reading AM paper and the couch felt like it was moving. Pretty soon I heard the glasses clinking in the cupboard. The coffee in the cup on the side table was moving, too. This happened about 7:20 AM on Saturday Sept 21, 2013.
  • Lander, WY - Small cabin with simple foundation. Second earthquake experience in this cabin.
  • Boulder, WY - Boulder, about 10 miles south of Pinedale. Was working on the computer and felt a light shaking, and then a distinct wave. The cabin creaked. No damage noted.


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    I felt the shaking *
    Country where you felt the earthquake *
    City/Village where you felt the earthquake *
    Street or suburb (area) where you felt the earthquake
    Latitude (area) where you felt the earthquake
    Longitude (area) where you felt the earthquake
    Shaking Strength *
    MMI II (Very weak shaking) ?
    People :
    Felt by persons at rest, on upper floors or favorably placed.
    MMI III (Weak shaking) ?
    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) ?
    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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