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
Lat/Lon: 16.994 , -99.7829
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)

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.

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
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 ,of Guerrero (population 56,443) . The alertlevel for this event is ORANGE

Intensity Population
260000 people
720000 people
380000 people
9.7 million people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
2 0.8 1395833 16.95/-99.788 7.0 12.6 7.033 08 Sep 2021 02:56 01:08 (new episode)
3 0.8 1395833 16.994/-99.783 7.0 20.0 6.974 08 Sep 2021 03:08 01:20 (upd of #2)
4 0.9 1395833 16.994/-99.783 7.0 20.0 7.27 08 Sep 2021 03:51 02:03 (upd of #3)
5 0.9 1395833 16.982/-99.773 7.0 20.0 7.26 08 Sep 2021 04:31 02:44 (upd of #4)
6 1.1 1395833 16.982/-99.773 7.0 20.0 7.746 09 Sep 2021 01:52 1d 00:04 (upd of #5)
7 1.1 1395833 16.972/-99.743 7.0 20.0 7.735 05 May 2022 12:50 239d 11:02 (upd of #6)

Affected Provinces

Intensity Region Province Country Population
Guerrero Mexico 56000 people
Guerrero Mexico 760000 people
Guerrero Mexico 270000 people
Guerrero Mexico 900000 people
Mexico Mexico 1.7 million people
Distrito Federal Mexico 5.6 million people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Aguacatillo Guerrero Mexico Village - 18 km
Ejido Nuevo Guerrero Mexico Village - 5 km
Bajos del Ejido Guerrero Mexico Village - 20 km
Tixtlacingo Guerrero Mexico Village - 21 km
Acapulco Guerrero Mexico Major city 640000 people 22 km
El Marqués Guerrero Mexico Village - 22 km
Coyuca de Benítez Guerrero Mexico Village - 32 km
Tierra Colorada Guerrero Mexico Village 10000 people 33 km
Las Mesas Guerrero Mexico Village - 34 km
San Marcos Guerrero Mexico City 12000 people 46 km
Inscuinatoyac Guerrero Mexico Village - 41 km
Tepetixtla Guerrero Mexico Village - 43 km
Jaleaca Guerrero Mexico Village - 50 km
El Papayo Guerrero Mexico Village - 51 km
Cuatepin Guerrero Mexico Village - 51 km
Cortijo Guerrero Mexico Village - 55 km
Cacalutla Guerrero Mexico Village - 63 km
San Vincente de Benitez Guerrero Mexico Village - 63 km
Caridad Guerrero Mexico Village - 64 km
Atoyac Guerrero Mexico City 20000 people 73 km
San Jerónimo Guerrero Mexico Village 7000 people 73 km
Ayutla Guerrero Mexico City 9900 people 73 km
Cruz Grande Guerrero Mexico Village 9800 people 77 km
Petaquilla Guerrero Mexico Village - 63 km
Salto de Valadez Guerrero Mexico Village - 68 km
Chilpancingo Guerrero Mexico Major city 160000 people 68 km
Los Morros Guerrero Mexico Village - 70 km
Corral de Piedra Guerrero Mexico Village - 70 km
Quechultenango Guerrero Mexico Village 5000 people 74 km
Tixtla Guerrero Mexico City 21000 people 76 km
Chichihualco Guerrero Mexico Village 10000 people 78 km
Manzintla Guerrero Mexico City - 78 km
Xumpango Guerrero Mexico Village - 79 km
Colotlipa Guerrero Mexico Village - 80 km
Las Juntas Guerrero Mexico Village - 82 km
Chilapa Guerrero Mexico Village - 85 km
Tlacomulco Guerrero Mexico Village - 88 km
Xochitepec Guerrero Mexico Village - 90 km
Tlacotepec Guerrero Mexico Village 6500 people 91 km
Hueycaltenango Guerrero Mexico Village - 91 km
Xochilapa Guerrero Mexico Village - 92 km
Coacoyulichan Guerrero Mexico Village - 92 km
Milpillas Guerrero Mexico Village - 92 km
Tecpan Guerrero Mexico City 14000 people 93 km
Huitziltepec Guerrero Mexico Village 4400 people 94 km
Cohatan Guerrero Mexico Village - 95 km
Copala Guerrero Mexico Village 6800 people 96 km
Apango Guerrero Mexico Village 3800 people 96 km
Chilapa Guerrero Mexico Village 23000 people 99 km
La Esperanza Guerrero Mexico Village - 101 km
Ixtayotla Guerrero Mexico Village - 104 km
Mazcala Guerrero Mexico Village - 105 km
Nuxco Guerrero Mexico Village - 107 km
Atlixtac Guerrero Mexico Village - 111 km
Balsas Guerrero Mexico Village - 111 km
San Miguel Tecuixiapan Guerrero Mexico Village - 112 km
Marquelia Guerrero Mexico Village 6800 people 113 km
San Luis Acatlan Guerrero Mexico Village - 114 km
San Luis San Pedro Guerrero Mexico Village - 122 km
Ciudad de México Distrito Federal Mexico Capital 8.5 million people 276 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
Pie de la Cuesta 6 0 24 km
Alvarez International ACA 5 Civ. Paved Yes 10800 26 km
Chilpancingo 1280 Civ. Paved No 4400 70 km
Juarez International MEX 2238 Civ. Paved Yes 12900 281 km

Ports

Intensity Name LOCODE Country Distance
Acapulco MXACA Mexico 21 km
Puerto Marques Mexico 22 km

Dams

Intensity Reservoir Dam Name River Year Distance
El Guineo Nexpa 1985 68 km
Carlos Ramirez Ulloa Balsas 1986 108 km

More information

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