M 7.4 in Mexico on 23 Jun 2020 15:29 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

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

Earthquake Magnitude: 7.4M
Depth: 23.31 Km
Event Date: 23 Jun 2020 15:29 UTC
23 Jun 2020 10:29 Local
Exposed Population: About 25000 people in MMI
650000 people within 100km
Source: NEIC us6000ah9t
Inserted at: 23 Jun 2020 15:48 UTC
INFORM Coping capacity of the alert score:
4.4 (Mexico)

GDACS Score

For more info on GDACS score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0.1 0.3 0.3
us6000ah9t Scaled population (raster) 3.25 Max wave alert 0.38m  
  C1 shakemap -0.59 Max wave realtime 0.38m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  INFORM_normalised 0.92      
Maximum expected impact using different data sources.
Click on images to zoom it.

Episode Timeline

IDLevelScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1317280 0.8 23 Jun 2020 15:29 7.7M, 33km N/A 580 thousand (in 100km) 0.9m (at 01:12) 00:11 PTWC
1317281 0.9 23 Jun 2020 15:29 7.7M, 33km N/A 590 thousand (in 100km) 1m (at 01:14) 00:12 NTWC
1317285 0.3 23 Jun 2020 15:29 7.4M, 23.31km 6.92 30 thousand (in MMI>=VII) 0.4m (at 01:10) 00:19 NEIC
1317290 0.6 23 Jun 2020 15:29 7.4M, 26.25km 7.62 170 thousand (in MMI>=VII) 0.3m (at 00:00) 05:23 NEIC
1317865 0.5 23 Jun 2020 15:29 7.4M, 20km 7.55 120 thousand (in MMI>=VII) 0.6m (at 01:12) 3d 01:17 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.

Tsunami affected locations

The maximum Wave height is  0.4m in Salina Cruz, Mexico. This height is estimated for 23-Jun-2020 16:39:13.

Level Date (UTC) Name Country Wave height (m)
23-Jun-2020 16:39:13 Salina Cruz Mexico  0.4
23-Jun-2020 16:39:13 Salina Cruz- Oax. Mexico  0.4
23-Jun-2020 15:29:00 Ayutla Mexico  0.3
23-Jun-2020 15:29:00 Mirador Mexico  0.3
23-Jun-2020 16:59:75 Majada Villalobos Mexico  0.3
23-Jun-2020 16:43:36 Garrapateras Mexico  0.2
23-Jun-2020 15:29:00 Tangolunda Mexico  0.2
23-Jun-2020 17:53:48 Huajapan Mexico  0.2
23-Jun-2020 19:13:97 Cachimba Mexico  0.1
23-Jun-2020 16:53:81 Costa Rica Mexico  0.1
23-Jun-2020 18:01:02 El Roble Mexico  0.1
23-Jun-2020 15:29:00 Bajo de Arenal Mexico  0.1
23-Jun-2020 18:59:05 Arista Mexico  0.1
23-Jun-2020 17:55:49 Pesqueria Mexico  0.1
23-Jun-2020 17:01:49 Buenavista Mexico  0.1
23-Jun-2020 18:27:48 Solo Dios Mexico  0.1

See full locations list (RSS)


Initial conditions

Title: ""M 7.4, 11 km SSW of Santa María Zapotitlán, Mexico""

Fault parameters

  • Latitude: 16.035
  • Longitude: -95.909
  • Length: 79 km
  • Width: 22 km
  • Magnitude: 7.4 M

Okada parameters:

  • Slip: 2 m
  • Strike: 272 (geogr angle: north=0, south=180)
  • Dip: 11 degree
  • Rake: 90 degree
  • Depth: 23 km

Calculation parameters

  • Calculation space (lon/lat): -103.409, 8.535, -88.409, 23.535
  • Instead of Step -> use Cell size:1.25 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.