M 4.9 in Philippines on 31 Jan 2021 00:34 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: 4.9M
Depth: 10 Km
Lat/Lon: 9.1132 , 126.468
Event Date: 31 Jan 2021 00:34 UTC
31 Jan 2021 08:34 Local
Exposed Population:
1050000 people within 100km
Source: NEIC us6000ddbf
Inserted at: 31 Jan 2021 00:54 UTC
INFORM Coping capacity of the alert score
4.2 (Philippines)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us6000ddbf Scaled population (vector) 5.72  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability -0.18  
  INFORM_normalised 0.89  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1355766 0 31 Jan 2021 00:34 4.9M, 10km N/A 1.1 million (in 100km) 00:19 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 Philippines , Region of Southern Mindanao (population 4,457,000) . The nearest places are La Paz, Tago, Cagwait, Somosomo, Tandag, Tigao, Buenavista, Burgos, Bahao, Kayogyog, and Unidad.

Radius Population
100 km 1.1 million people
75 km 380000 people
50 km 180000 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Southern Mindanao Philippines 4.5 million people

Affected populated places

Name Region Province Country City class Population Distance
La Paz Southern Mindanao Philippines Village 2300 people 27 km
Tago Southern Mindanao Philippines Village 6200 people 28 km
Cagwait Southern Mindanao Philippines Village - 29 km
Somosomo Southern Mindanao Philippines Village - 29 km
Tandag Surigao del Sur Philippines Village 29000 people 30 km
Tigao Surigao del Sur Philippines Village 2100 people 34 km
Buenavista Southern Mindanao Philippines Village 2600 people 34 km
Burgos Surigao del Sur Philippines Village 3500 people 35 km
Bahao Southern Mindanao Philippines Village - 37 km
Kayogyog Southern Mindanao Philippines Village - 37 km
Madrelino Surigao del Sur Philippines Village - 38 km
Tuburan Surigao del Sur Philippines Village - 39 km
Marihatag Southern Mindanao Philippines Village 3800 people 39 km
Sibahay Southern Mindanao Philippines Village - 42 km
Antipolo Southern Mindanao Philippines Village - 42 km
Santo Niño Southern Mindanao Philippines Village - 46 km
Lanuza Southern Mindanao Philippines Village 2000 people 47 km
Oteiza Southern Mindanao Philippines Village - 49 km
Carmen Southern Mindanao Philippines Village 2800 people 51 km
Salvacion Southern Mindanao Philippines Village 2100 people 53 km
Abaga Southern Mindanao Philippines Village - 55 km
Bitaogan Southern Mindanao Philippines Village - 57 km
Madrid Southern Mindanao Philippines Village 3100 people 57 km
Cantilan Surigao del Sur Philippines Village 9300 people 60 km
Sapa Southern Mindanao Philippines Village - 60 km
Bitaugan Southern Mindanao Philippines Village - 63 km
Carrascal Surigao del Sur Philippines Village 4400 people 64 km
Lianga Southern Mindanao Philippines Village 14000 people 67 km
Unidad Southern Mindanao Philippines Village 3300 people 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
Tandag TDG 5 Civ. Paved No 4400 33 km

Ports

Name LOCODE Country Distance
Tandag Philippines 29 km
Aras Asan Philippines 30 km
Lamon Anchorage Philippines 72 km
Hinatuan Philippines 84 km
Dapa Philippines 84 km

More information

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