M 5.4 in China on 15 Sep 2021 20:33 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This earthquake is expected to have a medium humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 5.4M
Depth: 10 Km
Lat/Lon: 29.2165 , 105.4067
Event Date: 15 Sep 2021 20:33 UTC
16 Sep 2021 04:33 Local
Exposed Population: About 37000 people in MMI
40 thousand (in MMI>=VII)
Source: NEIC us7000fbky
Inserted at: 15 Sep 2021 20:52 UTC
INFORM Coping capacity of the alert score: 3.6 (China)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 1.7 1.7
us7000fbky Scaled population (raster) 3.33  
  C1 shakemap -0.37  
  C2 shakemap 0.76  
  Country Vulnerability 0  
  INFORM_normalised 0.82  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1396900 1.7 15 Sep 2021 20:33 5.4M, 10km 6.73 40 thousand (in MMI>=VII) 00:19 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
The episode that has the last updated information.
* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened in China ,of Sichuan (population 120,517) . The alertlevel for this event is ORANGE

Intensity Population
37000 people
350000 people
1.2 million people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 2 1396900 29.216/105.407 5.4 10.0 6.811 15 Sep 2021 20:57 00:23 (new episode)
2 1.6 1396900 29.216/105.407 5.4 10.0 6.769 15 Sep 2021 21:30 00:57 (upd of #1)
3 1.7 1396900 29.182/105.39 5.4 10.0 6.726 15 Sep 2021 21:59 01:25 (upd of #2)
4 1.7 1396900 29.182/105.39 5.4 10.0 6.726 15 Sep 2021 22:39 02:05 (upd of #3)
5 1.7 1396900 29.182/105.39 5.4 10.0 6.726 16 Sep 2021 23:05 1d 02:32 (upd of #4)

Affected Provinces

Intensity Region Province Country Population
Sichuan China 330000 people
Sichuan China 1.3 million people
Sichuan China 2.7 million people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Shengdeng Sichuan China Village - 18 km
Longchang Sichuan China City - 20 km
Guangshunchang Sichuan China City - 20 km
Daisi Sichuan China Village - 26 km
Tongjiasi Sichuan China Village - 26 km
Ronchang Sichuan China City - 26 km
Lishi Sichuan China Village - 28 km
Shuang-feng-i Sichuan China Village - 32 km
Luzhou Sichuan China City 290000 people 37 km
Lo-han Sichuan China Village - 37 km
Wu-chia-p'u Sichuan China Village - 46 km
Fu-shun Sichuan China City - 47 km
Lung-shui Sichuan China Village - 51 km

see full list


Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Luzhou LZO 219 0 40 km

Dams

Intensity Reservoir Dam Name River Year Distance
Guyumiao 1979 21 km
Bailinsi 1958 22 km
Sanxikou 1962 26 km

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.