M 7.4 in Mexico from 08 Sep 2021 01:47 UTC to 01:47

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: 50 Km
Lat/Lon: 17.1 , -99.6
Event Date: 08 Sep 2021 01:47 UTC
07 Sep 2021 20:47 Local
Exposed Population: 2.1 million in 100km
Source: NTWC at00qz3ebs
Inserted at: 08 Sep 2021 02:02 UTC
INFORM Coping capacity of the alert score
4.4 (Mexico)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NTWC 0.9 0.1 0.9
at00qz3ebs Scaled population (vector) 6.48 Max wave alert 0.17m  
  C1 earthquake 1 Max wave realtime 0.17m  
  C2 earthquake 0      
  Country Vulnerability -1      
  INFORM_normalised 0.92      
Maximum expected impact using different data sources.

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.

Exposed population

The earthquake happened in Mexico , State of Guerrero (population 2,867,451) . The nearest places are Agua del Perro, Dos Arroyos, Solapa, Tierra Colorada, Las Mesas, El Limón, Ejido Nuevo, Bejuco, Carrizal, Jaltianguis, and Hueycaltenango.

Radius Population
100 km 2.1 million people
75 km 1.7 million people
50 km 1.1 million people
20 km 55000 people
10 km 7300 people
5 km <1000 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Guerrero Mexico 2.9 million people

Affected populated places

Name Region Province Country City class Population Distance
Agua del Perro Guerrero Mexico Village - 4 km
Dos Arroyos Guerrero Mexico Village - 10 km
Solapa Guerrero Mexico Village - 10 km
Tierra Colorada Guerrero Mexico Village 10000 people 11 km
Las Mesas Guerrero Mexico Village - 18 km
El Limón Guerrero Mexico Village - 21 km
Ejido Nuevo Guerrero Mexico Village - 21 km
Bejuco Guerrero Mexico Village - 23 km
Carrizal Guerrero Mexico Village - 23 km
Jaltianguis Guerrero Mexico Village - 25 km
El Treinta Guerrero Mexico Village - 30 km
Inscuinatoyac Guerrero Mexico Village - 32 km
Agua Zarca de la Peña Guerrero Mexico Village - 33 km
Nacaxtlán Guerrero Mexico Village - 33 km
Colotepec Guerrero Mexico Village - 34 km
Ceutla Guerrero Mexico Village - 35 km
Acahuizotla Guerrero Mexico Village - 35 km
Aguacatillo Guerrero Mexico Village - 35 km
Coaxtlahuacan Guerrero Mexico Village - 38 km
San Marcos Guerrero Mexico City 12000 people 39 km
Tixtlacingo Guerrero Mexico Village - 40 km
Cortijo Guerrero Mexico Village - 41 km
El Marqués Guerrero Mexico Village - 41 km
Bajos del Ejido Guerrero Mexico Village - 42 km
San Vicente Guerrero Mexico Village - 44 km
Acapulco Guerrero Mexico Major city 640000 people 44 km
Petaquilla Guerrero Mexico Village - 44 km
Xicuiltepec Guerrero Mexico Village - 44 km
Tolixtlahuaca Guerrero Mexico Village - 46 km
Salto de Valadez Guerrero Mexico Village - 47 km
Jaleaca Guerrero Mexico Village - 47 km
Amofiloco Guerrero Mexico Village - 48 km
Chilpancingo Guerrero Mexico Major city 160000 people 51 km
Quechultenango Guerrero Mexico Village 5000 people 52 km
Cuatepin Guerrero Mexico Village - 53 km
Coyuca de Benítez Guerrero Mexico Village - 53 km
Caridad Guerrero Mexico Village - 54 km
El Puente Guerrero Mexico Village - 55 km
Coapinola Guerrero Mexico Village - 55 km
Manzintla Guerrero Mexico City - 55 km
Ayutla Guerrero Mexico City 9900 people 56 km
Tixtla Guerrero Mexico City 21000 people 57 km
Tepetixtla Guerrero Mexico Village - 57 km
Colotlipa Guerrero Mexico Village - 57 km
Mauricio Gutiérrez Guerrero Mexico Village - 60 km
Los Morros Guerrero Mexico Village - 60 km
Xumpango Guerrero Mexico Village - 63 km
Chichihualco Guerrero Mexico Village 10000 people 65 km
Chilapa Guerrero Mexico Village - 66 km
Cruz Grande Guerrero Mexico Village 9800 people 66 km
Corral de Piedra Guerrero Mexico Village - 67 km
Xochitepec Guerrero Mexico Village - 68 km
Hueycaltenango Guerrero Mexico Village - 68 km

see full list

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Alvarez International ACA 5 Civ. Paved Yes 10800 41 km
Pie de la Cuesta 6 0 46 km
Chilpancingo 1280 Civ. Paved No 4400 53 km

Ports

Name LOCODE Country Distance
Puerto Marques Mexico 43 km
Acapulco MXACA Mexico 43 km

Dams

Reservoir Dam Name River Year Distance
El Guineo Nexpa 1985 55 km

More information

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