M 5.5 in Mexico on 24 Jul 2020 03:19 UTC

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: 5.5M
Depth: 6.56 Km
Lat/Lon: 15.6199 , -95.885
Event Date: 24 Jul 2020 03:19 UTC
23 Jul 2020 22:19 Local
Exposed Population: 120000 people in MMI>=IV
370000 people within 100km
Source: NEIC us6000b35c
Inserted at: 24 Jul 2020 15:35 UTC
INFORM Coping capacity of the alert score: 4.4 (Mexico)


For more info on GDACS alert score click here.
GDACS score
NEIC 0 0
us6000b35c Scaled population (raster) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 0.92  
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
1323096 0 24 Jul 2020 03:19 5.5M, 6.56km 4.59 370 thousand 12:15 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 Mexico ,of Oaxaca (population 3,329,574) . The alertlevel for this event is GREEN

Intensity Population
<1000 people

Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1323096 15.62/-95.885 5.5 6.6 4.593 25 Jul 2020 03:22 1d 00:02 (new episode)

Affected Provinces

Intensity Region Province Country Population
Oaxaca Mexico <1000 people
Oaxaca Mexico 120000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Mirador Oaxaca Mexico Village - 22 km
Tangolunda Oaxaca Mexico Village - 27 km
Ayutla Oaxaca Mexico Village - 29 km
San Isidro Chacalapa Oaxaca Mexico Village - 33 km
Garita Oaxaca Mexico Village - 35 km
Santa María Oaxaca Mexico Village - 40 km
Bajo de Arenal Oaxaca Mexico Village - 41 km
El Coyol Oaxaca Mexico Village - 41 km
San Miguel del Puerto Oaxaca Mexico Village - 43 km
Llano de Cal Oaxaca Mexico Village - 44 km
Astata Oaxaca Mexico Village - 47 km
Tierra Blanca Oaxaca Mexico Village - 50 km
Loma Larga Oaxaca Mexico Village - 55 km
Pochutla Oaxaca Mexico City 12000 people 63 km
Puerto Ángel Oaxaca Mexico Village - 64 km

see full list

Critical infrastructure

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


Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Bahias de Huatulco International HUX 143 Civ. Paved Yes 8800
Pochutla PUH unknown 0

More information

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