M 7 in Mexico on 08 Sep 2021 01:47 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: 7.0M
Depth: 20 Km
Event Date: 08 Sep 2021 01:47 UTC
07 Sep 2021 20:47 Local
Exposed Population: 250000 people in MMI
970 thousand (in MMI>=VII)
Source: NEIC us7000f93v
Inserted at: 08 Sep 2021 02:35 UTC
INFORM Coping capacity of the alert score:
4.4 (Mexico)
Maximun Wave Height observed: 0.48 m

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 1.1 0.4 1.1
us7000f93v Scaled population (raster) 5.36 Max wave alert 0.16m  
  C1 shakemap -0.59 Max wave realtime 0.48m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  INFORM_normalised 0.92      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1395824 0.9 08 Sep 2021 01:47 7.4M, 50km N/A 2.1 million (in 100km) 0.2m (at 00:25) 00:14 NTWC
1395827 0.7 08 Sep 2021 01:47 7M, 12.62km 6.89 690 thousand (in MMI>=VII) 0.2m (at 00:34) 00:27 NEIC
1395833 1.1 08 Sep 2021 01:47 7M, 20km 7.74 970 thousand (in MMI>=VII) 0.5m (at 00:32) 00:48 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.

Estimated Tsunami affected locations

The maximum observed wave height is 0.48m in Acapulco Mx;
The maximum Wave height is  0.2m in Acapulco, Mexico. This height is estimated for 8-Sep-2021 02:19:66.

Alert Date (UTC) Name Country Wave height (m)
8-Sep-2021 02:19:66 Acapulco Mexico  0.2
8-Sep-2021 02:19:66 Acapulco_MX Mexico  0.2
8-Sep-2021 02:19:66 Acapulco Club de Yates Mexico  0.2
8-Sep-2021 01:47:56 El Marques Mexico  0.1
8-Sep-2021 02:59:23 El Papayo Mexico  0.1
8-Sep-2021 04:24:94 Coyuquillas Mexico  0.1

See full locations list (RSS)


Initial conditions

Title: ""0 km SW of Kilómetro 30""

Fault parameters

  • Latitude: 16.994
  • Longitude: -99.783
  • Length: 50 km
  • Width: 14 km
  • Magnitude: 7 M

Okada parameters:

  • Slip: 1.3 m
  • Strike: 290 (geogr angle: north=0, south=180)
  • Dip: 13 degree
  • Rake: 90 degree
  • Depth: 20 km

Calculation parameters

  • Calculation space (lon/lat): -104.283, 12.494, -95.283, 21.494
  • Instead of Step -> use Cell size:.75 minutes

Sea Level

More information

  • Timeline:
    Tsunami calculations performed to this case, click here

  • Montecarlo:
    Tsunami Montecarlo simulation performed to this case, click here

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