M 4.8 in Mexico on 18 Dec 2012 01:38 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: 4.8M
Depth: Km
Lat/Lon: 16.4174 , -95.4004
Event Date: 18 Dec 2012 01:38 UTC
17 Dec 2012 19:38 Local
Exposed Population:
670000 people within 100km
Source: NEIC usc000ebpq
Inserted at: 18 Dec 2012 01:59 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc000ebpq 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

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
121496 0.5 18 Dec 2012 01:38 4.8M, 60.9km N/A 670 thousand (in 100km) 00:21 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 La Puerta, Agua Calientes, Las Pilas, Concepción, Magdalena Tequisistlan, Lachiloya, Tehuantepec, Desiderio, Yegogenda, Agonía, and Chapahuana.

Radius Population
100 km 660000 people
75 km 530000 people
50 km 360000 people
20 km 20000 people
10 km 12000 people
5 km 9700 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Oaxaca Mexico 3.3 million people

Affected populated places

Name Region Province Country City class Population Distance
La Puerta Oaxaca Mexico Village - 5 km
Agua Calientes Oaxaca Mexico Village - 6 km
Las Pilas Oaxaca Mexico Village - 13 km
Concepción Oaxaca Mexico Village - 15 km
Magdalena Tequisistlan Oaxaca Mexico Village 3800 people 20 km
Lachiloya Oaxaca Mexico Village - 21 km
Tehuantepec Oaxaca Mexico City 37000 people 22 km
Desiderio Oaxaca Mexico Village - 22 km
Yegogenda Oaxaca Mexico Village - 23 km
Agonía Oaxaca Mexico Village - 23 km
Tenango Oaxaca Mexico Village - 23 km
Niza Viahui Oaxaca Mexico Village - 24 km
Camarón Oaxaca Mexico Village - 24 km
Caja de Agua Oaxaca Mexico Village - 29 km
Comitancillo Oaxaca Mexico Village 3800 people 30 km
La Chivisha Oaxaca Mexico Village - 33 km
Calzada Oaxaca Mexico Village - 34 km
Cabrera Oaxaca Mexico Village - 35 km
El Portillo Oaxaca Mexico Village - 35 km
Río Grande Oaxaca Mexico Village - 35 km
Guaje Colorado Oaxaca Mexico Village - 36 km
Tlacolulita Oaxaca Mexico Village - 36 km
Salina Cruz Oaxaca Mexico City 74000 people 36 km
Lagarto Oaxaca Mexico Village - 36 km
Ciudad Ixtepec Oaxaca Mexico City - 38 km
Majada Villalobos Oaxaca Mexico Village - 39 km
Ixaltepec Oaxaca Mexico Village - 40 km
Albino Zárate Oaxaca Mexico Village - 41 km
Asunción Oaxaca Mexico Village - 41 km
Guexchoza Oaxaca Mexico Village - 42 km
Hueva de Humboldt Oaxaca Mexico Village - 42 km
Juchitan Oaxaca Mexico City 66000 people 43 km
Santa María Xandani Oaxaca Mexico Village - 44 km
Borjas Oaxaca Mexico Village - 45 km
Agua Blanca Oaxaca Mexico Village - 46 km
Garrapateras Oaxaca Mexico Village - 47 km
San Francisco Oaxaca Mexico Village - 50 km
Agua Caliente Oaxaca Mexico Village - 51 km
Santa María Ecatepec Oaxaca Mexico Village - 51 km
Costa Rica Oaxaca Mexico Village - 52 km
Coatlán Oaxaca Mexico Village - 53 km
Astata Oaxaca Mexico Village - 53 km
Almoloya Oaxaca Mexico Village - 53 km
Santo Domingo Petapa Oaxaca Mexico Village - 54 km
San Juan Lajarcia Oaxaca Mexico Village - 54 km
Agua Fría Oaxaca Mexico Village - 57 km
Santiago Lachivia Oaxaca Mexico Village - 59 km
San Bartolo Oaxaca Mexico Village - 60 km
El Coyol Oaxaca Mexico Village - 60 km
Platanillo Oaxaca Mexico Village - 61 km
Candelaria Oaxaca Mexico Village - 62 km
Unión Hidalgo Oaxaca Mexico City 12000 people 63 km
Nejapa de Madero Oaxaca Mexico Village - 64 km
Narro Oaxaca Mexico Village - 65 km
Chicapa Oaxaca Mexico Village - 65 km
Aguacatenango Oaxaca Mexico Village - 66 km
Chontecomatlan Oaxaca Mexico Village - 66 km
Carnicería Oaxaca Mexico Village - 66 km
Matías Romero Oaxaca Mexico City 20000 people 67 km
Llano de Cal Oaxaca Mexico Village - 68 km
San Juan Mazatlán Oaxaca Mexico Village - 68 km
Cordoncillo Oaxaca Mexico Village - 68 km
Agua Escondida Oaxaca Mexico Village - 69 km
Guichicovi Oaxaca Mexico Village 4300 people 69 km
Chapahuana Oaxaca Mexico Village - 70 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
Salina Cruz SCX 23 0 32 km
Ixtepec Military 50 Civ. Paved Yes 7500 36 km
Ixtepec IZT unknown 0 38 km

Ports

Name LOCODE Country Distance
Salina Cruz MXSCX Mexico 36 km

Dams

Reservoir Dam Name River Year Distance
Presidente Benito Juarez Tehuantepec 1961 4 km

More information

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