Overall Green Earthquake alert in Mexico on 31 Jul 2021 21:19 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

M 5.2 in Mexico on 31 Jul 2021 21:19 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:	5.2M
Depth:	10 Km
Lat/Lon:	30.4142 , -109.2058
Event Date:	31 Jul 2021 21:19 UTC 31 Jul 2021 14:19 Local
Exposed Population:	Less then 100 people in MMI VI About 60000 people within 100km
Source:	NEIC us6000f128
Inserted at:	31 Jul 2021 21:40 UTC
INFORM Coping capacity of the alert score:	4.4 (Mexico)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0		0
us6000f128	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

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1388667		0	31 Jul 2021 21:19	5.2M, 10km	6.16	N/A (in MMI>=VII)		00:20	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 Sonora (population 22) . The alertlevel for this event is GREEN

Intensity	Population
	<1000 people
	<1000 people

Shakemaps Timeline

Alert	Shake id #	Score	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
	1	0	1388667	30.414/-109.206	5.2	10.0	6.155	31 Jul 2021 22:29	01:10	(new episode)

Affected Provinces

Region Province	Country	Population
Sonora	Mexico	<1000 people
Sonora	Mexico	26000 people
Chihuahua	Mexico	2600 people

Affected populated places. Areas of interest

Name	Region Province	Country	City class	Population	Distance
Ejido San Juan	Sonora	Mexico	Village	-	19 km
Bavispe	Sonora	Mexico	Village	-	27 km
Ejido la Galera	Sonora	Mexico	Village	-	27 km
Bacerac	Sonora	Mexico	Village	-	28 km
Oputo	Sonora	Mexico	Village	-	30 km
Huachinera	Sonora	Mexico	Village	-	33 km
Turicachi	Sonora	Mexico	Village	-	46 km
Nacozari	Sonora	Mexico	Village	12000 people	46 km
Esqueda	Sonora	Mexico	Village	6100 people	50 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
	Rancho la Milpita		1435				0	43 km

Dams

Intensity	Reservoir	Dam Name	River	Year	Distance
		La Angostura	Bavispe	1942	17 km

More information

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

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
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