Overall Green Earthquake alert in Mexico on 21 Nov 2012 00:30 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 4.6 in Mexico on 21 Nov 2012 00:30 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:	4.6M
Depth:	13.8 Km
Lat/Lon:	16.4271 , -98.3036
Event Date:	21 Nov 2012 00:30 UTC 20 Nov 2012 18:30 Local
Exposed Population:	790000 people within 100km
Source:	NEIC usc000dvyp
Inserted at:	21 Nov 2012 00:51 UTC

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
NEIC	0.5		0.5
usc000dvyp	Scaled population (vector)	n.a
	C1 earthquake	n.a
	C2 earthquake	n.a
	Country Vulnerability	n.a
	INFORM_normalised	n.a

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
120990		0.5	21 Nov 2012 00:30	4.6M, 13.8km	N/A	790 thousand (in 100km)		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 , State of Oaxaca (population 3,329,574) . The nearest places are Huanacastle, San Juan Bautista lo de Soto, Cuajinicuilapa, Piedra Ancha, Armenta, Santiago, Huanjintepec, Ciruelo, Lo de Liborio, Las Conchitas, and Ixtayutla.

Radius	Population
100 km	810000 people
75 km	520000 people
50 km	320000 people
20 km	47000 people
10 km	7800 people
5 km	2500 people
2 km	<1000 people

Affected Provinces

Region Province	Country	Population
Oaxaca	Mexico	3.3 million people
Guerrero	Mexico	2.9 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Huanacastle	Oaxaca	Mexico	Village	-	4 km
San Juan Bautista lo de Soto	Oaxaca	Mexico	Village	-	10 km
Cuajinicuilapa	Guerrero	Mexico	Village	9300 people	13 km
Piedra Ancha	Guerrero	Mexico	Village	-	15 km
Armenta	Oaxaca	Mexico	Village	-	16 km
Santiago	Oaxaca	Mexico	Village	-	16 km
Huanjintepec	Guerrero	Mexico	Village	-	18 km
Ciruelo	Oaxaca	Mexico	Village	-	19 km
Lo de Liborio	Oaxaca	Mexico	Village	-	20 km
Las Conchitas	Oaxaca	Mexico	Village	-	20 km
Alto de las Mesas	Oaxaca	Mexico	Village	-	21 km
Cacahuatepec	Oaxaca	Mexico	Village	3600 people	23 km
San Nicolás	Guerrero	Mexico	Village	-	26 km
Vista Hermosa	Guerrero	Mexico	Village	-	26 km
Ometepec	Guerrero	Mexico	Village	18000 people	28 km
Pie Cerro	Oaxaca	Mexico	Village	-	29 km
Pinotepa	Oaxaca	Mexico	Village	-	30 km
La Soledad	Guerrero	Mexico	Village	-	32 km
Jicayan	Oaxaca	Mexico	Village	4200 people	34 km
Ipalapa	Oaxaca	Mexico	Village	-	34 km
Xochistlahuaca	Guerrero	Mexico	Village	3500 people	37 km
Achiotes	Oaxaca	Mexico	Village	-	37 km
Tierra Colorada	Guerrero	Mexico	Village	-	38 km
Acatepec	Guerrero	Mexico	Village	-	38 km
Tlacoachixtlahuaca	Guerrero	Mexico	Village	-	39 km
Igualapa	Guerrero	Mexico	Village	-	44 km
San Andres	Oaxaca	Mexico	Village	-	44 km
Zacatepec	Oaxaca	Mexico	Village	4400 people	47 km
Huehuetono	Guerrero	Mexico	Village	-	48 km
San Cristóbal	Guerrero	Mexico	Village	-	48 km
Chico Ometepec	Oaxaca	Mexico	Village	-	49 km
San Cristóbal	Oaxaca	Mexico	Village	-	49 km
La Reforma	Oaxaca	Mexico	Village	-	52 km
Quetzalapa	Guerrero	Mexico	Village	-	54 km
Jamiltepec	Oaxaca	Mexico	City	9800 people	54 km
Azoyú	Guerrero	Mexico	Village	4200 people	55 km
Marquelia	Guerrero	Mexico	Village	6800 people	57 km
Coyul	Oaxaca	Mexico	Village	-	58 km
El Cacao	Oaxaca	Mexico	Village	-	58 km
Amole	Oaxaca	Mexico	Village	-	59 km
San Luis Acatlan	Guerrero	Mexico	Village	-	60 km
La Tuza	Oaxaca	Mexico	Village	-	60 km
El Platanillo	Oaxaca	Mexico	Village	-	60 km
Ocote	Guerrero	Mexico	Village	-	66 km
Asunción Atoyaquillo	Oaxaca	Mexico	Village	-	67 km
Cuitlapa	Guerrero	Mexico	Village	-	68 km
Cumbre	Oaxaca	Mexico	Village	-	68 km
Iliatenco	Guerrero	Mexico	Village	-	69 km
Ixtayutla	Oaxaca	Mexico	Village	-	69 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
Ta lo de Soto		149				0	11 km
Pinotepa Nacional	PNO	unknown				0	27 km

More information

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

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