China - Deadly SICHUAN (Xa'an) earthquake April 20 2013 - Part 1 (Archive)


Part 1

(this part includes all our information from the beginning of the earthquake until 05:13 UTC)


Update 05:13 UTC : Chinese seismologists are stating that the current earthquake is about 85 km from the 2008 cruel earthquake killing 68000 people. Today's earthquake has also the same Focal Mechanism than the 2008 one.

Update 05:06 UTC : Latest news reported by CCTV China reports that a Kindergarten school should have collapsed. The station staff is now trying to get more news from this.

Update 05:01 UTC : Another video showing the shaking at a greater distance from the epicenter. The location of this video is not know, but based on the time we know that the location of the camera is rather far away.

Screen Shot 2013-04-20 at 06.05.27Update 04:56 UTC : The death toll has further increased to 57 (official)
- The Sichuan, China, Mw6.6 shallow thrust quake close to southern end of aftershock zone of devastating 2008 Mw7.9 quake, similar mech
- The Chinese Prime Minister is on his way to the airport to overfly the earthquake area. He want to be kept briefed of all proceedings.

Update 04:52 UTC : The current rescue and relief operation is a LEVEL 1 operation. The command will be at the supreme headquarters in Beijing. Aerial footage we have seen shows a lot of collapsed buildings in the epicenter villages. The images have been photographed out of assessment mission helicopters.

Update 04:30 UTC : CCTV China reports that several buildings have collapsed and that landslides are making relief efforts and traffic to the quake hit zone very difficult.
- Public life (shops, transport etc) has come to a standstill.

Screen Shot 2013-04-20 at 06.40.20

Update 04:21 UTC : so far 20 aftershocks from M3.6 to M5.1. The number of fatalities has increased from 41 to 46. We know that some Press Agencies are reporting higher numbers, but we refrain from speculating and we will only mention the official number.

Update 04:11 UTC : Chengdu airport has been re-opened again

Update 04:05 UTC : Ya'an is the original Panda area in China. The current Panda park is outside Chengdu. there is no real danger for the Panda's, as they do live in a nice open-air park (have been visiting this park last October).

Update 04:01 UTC : 41 people are now reported killed

Update 03:53 UTC : Chinese army is flying troops and rescuers to the epicenter area by helicopters

Update 03:45 UTC : Un-official Xa'an microbloggers are estimating that the death toll will rise a lot the coming hours.

Screen Shot 2013-04-20 at 05.51.06

Update 03:38 UTC : The Rescue authorities are now reporting 32 fatalities and at least 600 injured. These are temporary numbers and will further rise.

Update 03:29 UTC : 2000 Rescue and Relief troops from Chengdu have been dispatched to the epicenter area.

Update 03:22 UTC : A very grim picture comes from rescuers already in the earthquake epicenter zone. A lot of buildings have collapsed and the people are anxiously waiting for rescuers to help them. The final outcome will be dramatic and we expect the death toll to rise spectacularly the following hours.

Update 03:18 UTC : The number of fatalities has now officially risen to 28. The epicenter area is completely blocked by debris and landslides, common after such a major earthquake

Update 03:14 UTC : The Ya'an to Lushan County highway has been blocked

Update 03:09 UTC : The main tectonic plates colliding during this earthquake are the Indian plate and the Eurasian plate. The earthquake today follows a massive M7.8 earthquake earlier this week killing 41 in Pakistan and a M7.2 earthquake this morning in the Kuril Islands area.

Update 03:03 UTC : Chinese main newspaper Peoples Daily now reports 12 fatalities

Update 03:01 UTC : Authorities are now releasing the number of 5 killed and more than 1,000 injured

Update 02:54 UTC : Chinese earthquake SAR and relief troops are among the best trained in the world. Depending on the level of alert the command is provincially or nationally. This is definitely a National command.
Unless for many other earthquakes i remote places, the rescue and relief should be relatively quick in the epicenter area as the distance from provincial capital Chengdu is only 1 to 2 hours drive. Of course this is in normal conditions. After an earthquakes the roads may be blocked by damage, debris and/or landslides.

Chinese relief and rescue troops during another mission

Chinese relief and rescue troops during another mission

Update 02:52 UTC : Officially there are only 2 fatalities so far. We will only bring other numbers when they are confirmed by many Chinese sources. Fatalities are not something to exaggerate !

Update 02:49 UTC : The picture below gives an impression of the buildings in Xa'an city, closest to the epicenter. Telecommunications (mainly mobile) are on on off reports the Chinese TV.

Panoramio image of Xa'an building types

Panoramio image of Xa'an building types

Update 02:43 UTC : The weather in the earthquake epicenter area is bad (light rain) and people are expecting serious landslides because of the aftershocks.
- We do Thank our Chinese readers to send us so many I Have Felt It reports. Most of them are however from 100+ km from the epicenter which we see as relatively harmless.

Update 02:38 UTC : Map 1 below shows the strongest aftershocks after the M7.0 mainshock. The most recent aftershock measured M4.8. The depth of most aftershocks is varying in between 10 and 20 km.

Update 02:31 UTC : 1200 SAR (Search and Rescue) troops have been dispatched to the epicenter area to search for earthquake victims and to provide relief material.

Update 02:20 UTC : Ya'an, Sichuan earthquake occurred in the same seismic area than the 2008 earthquake. Chinese media people commenting from the Xa'an area are mentioning hundreds of injured an a number of deaths. International reports of +100 fatalities are too soon at this time.

Update 02:17 UTC : For people only coming in now , this the live report of the terrible earthquake who occurred in Sichuan, China. We are posting regular updates when they become available. Keep this page open as it will refresh every 6 minutes. We will add pictures and videos when we find the quality and content good enough to show you.

Update 02:06 UTC : Chinese authorities and seismologists are indicating Ya'an as the city closest to the epicenter.
Some more about Ya'an : Previously known as Yazhou-fu, the city is first mentioned during the Zhou Dynasty (1122-255 BCE). It served as a county seat during the Qin and Han Dynasties, but was subsequently taken by nomadic tribes. After being reintegrated into the Chinese Empire in the late 5th century, it was made the seat of the Ya Prefecture in 604. The modern Ya'an county was established in 1912. It became the provincial capital of Xikang province in 1951, but has been a municipality under the administration of Sichuan province since 1955, whenXikang province was merged and became a part of Sichuan province. (source Wikipedia). Ya'an prefecture gas a population of 1,560,000 people !

Screen Shot 2013-04-20 at 04.09.58

Update 02:00 UTC : CCTV reports 2 fatalities at this moment. The epicenter is following Chinese media in Xa'an city. We reckon that the final death toll will be more severe.

Update 01:45 UTC : We have no specific information from the epicenter yet. We reiterate that only a small perimeter of max. 50 km radius is at risk for heavy damage.
- A new M5.1 aftershock is now reported. 5+ aftershocks are damaging on its own.

Update 01:45 UTC : Millions of people are currently in the streets out of fear for aftershocks. A hallucinate image this morning when almost naked people are on the streets after having felt the shaking in their beds.

image courtesy and copyright

image courtesy and copyright

Update 01:42 UTC : China maintains the 7.0 Magnitude but communications are very difficult. This earthquake has been felt by more than hundred million people (Chonqqing alone has 30 million inhabitants).

Update 01:36 UTC : First picture of the damage look grim. New high rise buildings in the bigger cities in China are being build earthquake resistant and should not have sustained serious damage.

Screen Shot 2013-04-20 at 03.37.30

Image copyright and courtesy

Update 01:32 UTC : The shaking lasted for about 30 seconds as mentioned by our readers. This is long and the longer the shaking lasts, the more damage can be expected.

Update 01:29 UTC : Many aftershocks are currently striking the greater epicenter area. Some of them are damaging from its own.

Update 01:26 UTC : Chengdu airport was closed because of some non specific damage from the airport facilities.

Update 01:21 UTC : Today's earthquake is relatively close to the area who was totally devastated whan a M7.8 earthquake struck on 2008. This earthquake killed an estimated 68,000 people.

Update 01:17 UTC : A little bit o good news : USGS has decreased his initial Magnitude from M6.9 to M6.6. The depth has been updated to 12 km, still extremely dangerous.

Update 01:17 UTC : There are 7 million people living within a radius of 100 km from the epicenter. ER Calls a radius of 25 to 35 km at HIGH risk for damage, injuries and fatalities.

Update 01:13 UTC : USGS expects 83,000 people to have experienced a SEVERE MMI VIII shaking, this is damaging shaking. 218,000 will have experienced a MMI VII very strong shaking. The numbers are really BAD!

Update 01:09 UTC : Chinese cities in the greater epicenter area and their probable MMI shaking. VI and V are NOT extremely dangerous but can generate cracks, fallen tiles etc.

Screen Shot 2013-04-20 at 03.11.13

Update 01:03 UTC : As could be expected, a lot of mobile telecommunications have been interrupted in the greater epicenter area.

Update 00:59 UTC : A lot of tourists will have felt this earthquake as cities like Xi'an, Chengdu, Chonqing etc are heavily visited. Chinese authorities are mentioning Lushan County as the epicenter area.

Update 00:55 UTC : USGS has decreased his expectation of maximum shaking from IX to VIII, still a severe shaking. Adobe houses and non-earthquake resistant houses are at great risk during this earthquake.

Update 00:49 UTC : WAPMERR, the theoretical damage engine has calculated that based on M6.9 and 16 km depth there will be 400 to 3500 fatalities and thousands of injured. Let's hope that they are wrong !

Screen Shot 2013-04-20 at 02.54.35

Update 00:47 UTC : The Chinese data are even more dangerous. CEIC reports a Magnitude of 7.0 at a depth of only 14 km. ER fears for a lot of fatalities.

Update 00:41 UTC : We do stress that this is a MAJOR DANGEROUS earthquake. The combination Magnitude / depth can be very damaging.

Update 00:40 UTC : Based on the USGS data, Muping Town is at high risk for severe damage. Population : 11000 people

Update 00:37 UTC : We will have to wait a little to get the precise population data in the direct vicinity of the earthquake.

Update 00:36 UTC : Unfortunately all the local Chinese seismology servers are down because of too many requests

Update 00:26 UTC : USGS is expecting a MASSIVE MMI IX shaking near the epicenter. Even if the shaking should be down to VII or VIII, this earthquake will still be very damaging.

Screen Shot 2013-04-20 at 02.26.14

Update 00:26 UTC : USGS is reporting a Magnitude of 6.9 at a depth of only 16 km. EMSC is initially reporting a depth of 60 km. If the final depth is less than 20 km, this earthquake will normally be very damaging.

Update 00:22 UTC : We are currently trying to get the data of the Chinese Seismological services, but so far we could not get to it, probably server are too busy.

Update 00:18 UTC : The earthquake was VERY powerful and felt in a very wide area. We did get already reports as far as Chonqing and Kunming. We stress that this is a VERY DANGEROUS earthquake

Extremely dangerous earthquake in Sichuan, China
The earthquake was also relatively close to Chengdu (111 km)

111 km SW of Chengdu, China / pop: 3,950,437 / local time: 08:02:53.0 2013-04-20
97 km NW of Leshan, China / pop: 154,477 / local time: 08:02:53.0 2013-04-20

Links to important maps
USGS Did You Feel It Map
Shaking map
Human impact map
Scientific parameters

Most important Earthquake Data:

Magnitude : 6.6

Local Time (conversion only below land) : 2013-04-20 08:02:48

GMT/UTC Time : 2013-04-20 00:02:48

Depth (Hypocenter) : 19 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
GEOFON Sichuan, China Apr 20 20:53 5.1 21 MAP
EMSC Eastern Sichuan, China Apr 20 20:53 5.1 20 MAP I Felt It INFO
  • xi,an - les verres et les lampes ont bougé
  • USGS Eastern Sichuan, China Apr 20 20:53 5.2 9 MAP
  • Sicuan - I was awakened because my bed was shaking and the windows were rattling
  • USGS Eastern Sichuan, China Apr 20 19:54 4.4 10 MAP
    GEOFON Sichuan, China Apr 20 19:54 4.6 10 MAP
    EMSC Eastern Sichuan, China Apr 20 19:54 4.5 20 MAP I Felt It INFO
    USGS Eastern Sichuan, China Apr 20 18:32 4.6 35 MAP I Felt It INFO
    GEOFON Sichuan, China Apr 20 18:32 4.4 11 MAP
    EMSC Eastern Sichuan, China Apr 20 18:32 4.6 100 MAP I Felt It INFO
    GEOFON Sichuan, China Apr 20 16:14 4.5 10 MAP I Felt It INFO
    EMSC Western Sichuan, China Apr 20 16:14 4.6 100 MAP
    USGS Western Sichuan, China Apr 20 16:14 4.6 16 MAP I Felt It INFO
    EMSC Eastern Sichuan, China Apr 20 11:12 4.8 10 MAP
    GEOFON Sichuan, China Apr 20 11:12 4.8 12 MAP I Felt It INFO
    USGS Eastern Sichuan, China Apr 20 11:12 4.8 10 MAP
    USGS Eastern Sichuan, China Apr 20 10:59 4.5 10 MAP
    EMSC Eastern Sichuan, China Apr 20 10:59 4.5 10 MAP
    USGS Eastern Sichuan, China Apr 20 09:45 4.4 10 MAP I Felt It INFO
    EMSC Eastern Sichuan, China Apr 20 09:45 4.4 10 MAP I Felt It INFO
    EMSC Eastern Sichuan, China Apr 20 07:18 4.6 10 MAP
    USGS Eastern Sichuan, China Apr 20 07:18 4.6 10 MAP
    GEOFON Sichuan, China Apr 20 07:18 4.5 10 MAP I Felt It INFO
    EMSC Western Sichuan, China Apr 20 03:34 5.2 20 MAP I Felt It INFO
    GEOFON Sichuan, China Apr 20 03:34 5.2 19 MAP
    USGS Western Sichuan, China Apr 20 03:34 5.1 12 MAP
    GEOFON Sichuan, China Apr 20 02:38 4.7 21 MAP
    EMSC Eastern Sichuan, China Apr 20 02:38 4.7 20 MAP
    USGS Eastern Sichuan, China Apr 20 02:38 4.6 12 MAP I Felt It INFO
    GEOFON Sichuan, China Apr 20 02:19 4.7 18 MAP
    EMSC Eastern Sichuan, China Apr 20 02:19 4.6 20 MAP
    USGS Eastern Sichuan, China Apr 20 02:19 4.5 12 MAP I Felt It INFO
    GEOFON Sichuan, China Apr 20 01:37 4.9 17 MAP
    EMSC Western Sichuan, China Apr 20 01:37 5.0 20 MAP
    USGS Eastern Sichuan, China Apr 20 01:37 5.1 12 MAP
    EMSC Eastern Sichuan, China Apr 20 01:26 4.8 10 MAP
    USGS Eastern Sichuan, China Apr 20 01:26 4.6 12 MAP
    GEOFON Sichuan, China Apr 20 01:25 4.8 10 MAP
    GEOFON Sichuan, China Apr 20 01:20 4.6 10 MAP I Felt It INFO
    EMSC Eastern Sichuan, China Apr 20 01:20 4.8 12 MAP
    USGS Eastern Sichuan, China Apr 20 01:20 4.8 11 MAP
    EMSC Western Sichuan, China Apr 20 01:11 5.0 20 MAP
    USGS Western Sichuan, China Apr 20 01:11 5.0 10 MAP I Felt It INFO
    GEOFON Sichuan, China Apr 20 01:11 4.9 22 MAP
    USGS Western Sichuan, China Apr 20 01:11 5.0 10 MAP
    EMSC Eastern Sichuan, China Apr 20 01:02 4.8 20 MAP
    GEOFON Sichuan, China Apr 20 01:02 4.8 24 MAP I Felt It INFO
    USGS Eastern Sichuan, China Apr 20 01:02 4.7 10 MAP
    GEOFON Sichuan, China Apr 20 00:37 5.0 15 MAP
    EMSC Eastern Sichuan, China Apr 20 00:37 4.9 10 MAP I Felt It INFO
    USGS Eastern Sichuan, China Apr 20 00:37 4.8 10 MAP I Felt It INFO
    GEOFON Sichuan, China Apr 20 00:31 5.0 15 MAP
    EMSC Eastern Sichuan, China Apr 20 00:31 5.0 15 MAP I Felt It INFO
    USGS Eastern Sichuan, China Apr 20 00:31 4.8 10 MAP I Felt It INFO
    EMSC Western Sichuan, China Apr 20 00:02 6.6 20 MAP I Felt It INFO
    USGS Western Sichuan, China Apr 20 00:02 6.6 12 MAP
    EMSC Western Sichuan, China Apr 20 00:02 6.8 20 MAP
    GEOFON Sichuan, China Apr 20 00:02 6.6 19 MAP I Felt It INFO
  • Chongqing - We were on the 17th floor and the we felt quick pulse of light shaking for about 15s
  • ChengDU - in 15th floor is shaking hardly, first horizon then vertical.but then building is fine.
  • Chengdu - Was on 20th floor. Lots of swaying
  • Kunming China - Lights were swinging...
  • xi'an - apartment building rocked twice. very slight
  • Chengdu - Bed shaking,door shaking as though someone was banging it
  • Chengdu - All the people in the buildings was running out, and some are almost naked.
  • xi'an - live 29th floor lights shaking light dizziness
  • Chengdu - Chengdu,China. 10th Floor of apartments about 8:15 am. More rolling than shaking but some light shaking at the height. No damage from my viewpoint
  • Chengdu - just after 8am woken up by building shaking, lasted about 30 seconds, not strong shaking but some pictures fell over
  • xi'an china - felt it at about a five, people on ground did not feel, but our apartment shook
  • Chongqing - I was on the 19th floor in Jie Fang Bei Chongqing. The building swayed lightly. I am from California, but feels strange in such a high building.
  • chengdu - on the 8th floor, shaking lasted about 30 seconds, and have just felt the 2nd aftershock
  • Chengdu - Building shook
  • Chengdu - I have felt my bed shaking when i was in my deep sleep. nothing fell down but everything was shaking around me.
  • Chengdu - 2nd floor. Woke me up. Windows and furniture shaking.
  • Chongqing, Beibei District - The bed is shaking and my roommate felt heart thumping voilently.
  • Chongqing - Shake bed and doors
  • chengdu - strong shaking for about 20 secs, then continued on for about 1min of moderate and light shaking
  • chengdu - it shook...almost for a minute and reminded of the 5.12 earthquake in chengdu. scary
  • xindu - light shaking of floor and walls at our bear rescue centre in Longqiao. All staff on site felt it.
  • Xindu, Chengdu - Woken up by light shaking which went on for about 10-15 seconds. Nothing damaged.
  • Xipu, chengdu - Not as bad as 5 years ago but a good shake none the less.
  • chongqing - chongqing
  • Chengdu - Daniel Rupp was naked.
  • Chengdu airport - In the airport having breakfast. Spilled all my soybean milk. Flight should be delayed
  • Chongqing - We felt it in Yubei Chongqing for about 20 seconds at 0800.
  • Xindu - Whole building was shaking. Everyone evacuated. Lasted for only a couple of minutes. Small aftershocks felt in last hour
  • Chengdu - Aufgewacht im 17ten Stock. Noch leicht betrunken vom Vorabend - aber sofort geschnallt: Erdbeben - nicht der Restalk 🙂 Dauer ca 15 sek. Starkes Schütteln - leichtes schwanken des Hauses.
  • Xian - 16th floor .woke up with bed shaking
  • Chongqing - J'ai senti le lit trembler
  • Chengdu, China - 4th floor shaking a little, very small aftermath shaking still now
  • Xindu - Very frightening for a foreigner in China. Building shook and we had to run into the street.
  • Chengdu Minshan Hotel - Shske waked me up and lasted about 30 seconds
  • Chengdu - Very serious shaking. But much less serious than the one in 2008. Chengdu is a quite safe city.
  • Luzhou - 17th floor in Luzhou Hotel. Sideways movements lasted 30 secs. Lights swinging. No movement felt on ground level.
  • Xi'an - I felt my bed shake for 20+ seconds. My wife and kids did not feel it at all in the living room
  • Luzhou - Luzhou, Sichuan, 30 secs sideways movement of building in 17th floor, no movements on ground level.
  • Chengdu/Huaxiba - Experienced about 14 aftershocks from then. Seems to have calmed down by now (9:45am)
  • Meishan - I was sleeping, I thought it was a nightmare, at the end I got out the bed and went outside, the people were outside already, the first earthquake in my life, scary!!
  • Nanchong - I felt it , but it lasted 2 seconds for me as I woke up very late. My collegues says it lasted for 20 sec.
  • Wenjiang (Chengdu) - J'etait eveille mais dans mon lit. Mon colocataire s'est reveille et nous avons courru sous la table du salon. Ca a dure une trentaine de secondes. Quelques repliques par la suite de faible intensite. Nous sommes descendus de l'immeuble et avons remarque que du platre etait tombe du plafond du couloir. Les locaux ne semblent pas inquiets.
  • Chongqing - I am in chongqing this is my qq number 1918150308, It is usualy hard to find people to talk to here in China so it's good to hear or see foreigners speaking. I felt my bed moving and then heard people screaming a little outside
  • Chengdu - on the 10th floor. The first big one at about 8:00 shook pretty strong, swinging cabinet doors open, swaying lights, lasted about 30 seconds. Have felt five or six small ones since then, minor swaying of lights. three hours later, still difficult to call people...
  • Chongqing - I was in bed at the foreign experts building in my apartment on the mountainside when the very heavy swaying from side to side happened. I thought I was dreaming at first and then woke to see it was real. I am on the third floor which is actually the ground level as the building is set along the rocky platform of the mountain. It is the third time this year I have felt an earthquake. Two others in the Kingdom of Tonga were 5 and 5.2 and they were different with shaking and rumbling like a tr
  • Hoima hospital cell in kahoora division - With eyes full of sleep i first hurried to take cover to see the person trying to break into my garage but when the windows,doors and roof started vibrating at the same time i realised it was an earthquake tremor and switched on my radio and started my computer to inform my friends
  • Chengdu - Woke up at 8.05 am due to the shaking, people run out of the building, books moved from the shelve, tiles fall from the wall, slight aftershocks.
  • Suining Sichuan - shaking in two wave, second wave was stronger,,,lasted about 30 seconds or less no damage to buildings
  • Chengdu - Woke in my bed on the 5th floor to find a bouncing bed and a shaking building. Most residents fled to the street, clothed or unclothed. Last experience was a 5.4 quake in Adelaide, Australia in 1954. This one was quite frightening for me. The quick response from the government was absolutely amazing. Aftershocks were felt here until 12pm
  • Chongqing - Felt like a heavy pile-driver hammering foundations next door. Hanging towel swinging slightly. I live at a 15th floor in a very densely populated neighbourhood in JFB, with very high buildings (+20stories) of Maoist construction, right behind the new Shangri-La hotel (58+stories) ; My main thought then: not a single one of this huge old concrete buildings would survive a direct hit, it would be an absolute mess in Chongqing.
  • Beibei district, Chongqing - The bed was shaking but i didn't realize it's an earthquake. Many of my classmates rushed out of their rooms, some even naked. Well, May God bless Ya'an and China!
  • Chengdu - Felt the initial shake, some things fell of shelves, my bed was shaking, books shelves, etc. Was feeling aftershocks throughout the day.



    Other earlier earthquakes in the greater epicenter area (since 2012)

    Strongest earthquakes Magnitude 3.5 or more within a 150 km radius from this earthquake (max. 60)




    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)
    * mandatory fields


    1. I am from Chilliwack British Columbia Canada and my heart sinks into sorrow. My heart wishes all to be well with everyone. I am proud to see everybody helping.

      I have a great friend in Chengdu and I am nervous. Everybody is wonderful wishing you the very best.