M 4.6 in Mexico on 16 Jan 2021 17:06 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: 34.25 Km
Lat/Lon: 15.7704 , -95.0556
Event Date: 16 Jan 2021 17:06 UTC
16 Jan 2021 11:06 Local
Exposed Population:
450000 people within 100km
Source: NEIC us7000d0p2
Inserted at: 16 Jan 2021 17:34 UTC
INFORM Coping capacity of the alert score
4.4 (Mexico)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us7000d0p2 Scaled population (vector) 5.42  
  C1 earthquake 1  
  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
1353268 0 16 Jan 2021 17:06 4.6M, 34.25km N/A 460 thousand (in 100km) 00:27 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 Salina Cruz, Majada Villalobos, Garrapateras, Costa Rica, Caja de Agua, Pesquería, Desiderio, Lagarto, Tehuantepec, Santa María Xandani, and Astata.

Radius Population
100 km 460000 people
75 km 280000 people
50 km 72000 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Oaxaca Mexico 3.3 million people
Chiapas Mexico 3.5 million people
Veracruz Mexico 6.8 million people
Tabasco Mexico 1.6 million people
San Marcos Guatemala 810000 people
Huehuetenango Guatemala 740000 people
Puebla Mexico 4.5 million people
Quezaltenango Guatemala 630000 people
Guerrero Mexico 2.9 million people
Retalhuleu Guatemala 260000 people
Totonicapan Guatemala 350000 people
Suchitepequez Guatemala 410000 people
Quiche Guatemala 560000 people
Solola Guatemala 260000 people
Campeche Mexico 580000 people
Peten Guatemala 230000 people
Escuintla Guatemala 570000 people
Chimaltenango Guatemala 390000 people
Baja Verapaz Guatemala 200000 people
Alta Verapaz Guatemala 510000 people
Sacatepequez Guatemala 210000 people
Guatemala Guatemala 2.2 million people
Tlaxcala Mexico 830000 people
Morelos Mexico 1.3 million people

Affected populated places

Name Region Province Country City class Population Distance
Salina Cruz Oaxaca Mexico City 74000 people 47 km
Majada Villalobos Oaxaca Mexico Village - 48 km
Garrapateras Oaxaca Mexico Village - 48 km
Costa Rica Oaxaca Mexico Village - 49 km
Caja de Agua Oaxaca Mexico Village - 55 km
Pesquería Oaxaca Mexico Village - 57 km
Desiderio Oaxaca Mexico Village - 58 km
Lagarto Oaxaca Mexico Village - 59 km
Tehuantepec Oaxaca Mexico City 37000 people 64 km
Santa María Xandani Oaxaca Mexico Village - 65 km
San Francisco del Mar Oaxaca Mexico Village 4000 people 69 km
San Dionisio del Mar Oaxaca Mexico Village 3300 people 69 km
Astata 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
Salina Cruz SCX 23 0 51 km
Ixtepec Military 50 Civ. Paved Yes 7500 77 km
Ixtepec IZT unknown 0 88 km

Ports

Name LOCODE Country Distance
Salina Cruz MXSCX Mexico 46 km

Dams

Reservoir Dam Name River Year Distance
Presidente Benito Juarez Tehuantepec 1961 83 km

More information

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