M 5.8 in Indonesia on 22 Feb 2021 19:22 UTC
EQ parameters

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: 5.8M
Depth: 16.4 Km
Lat/Lon: 1.3663 , 121.9224
Event Date: 22 Feb 2021 19:22 UTC
23 Feb 2021 03:22 Local
Exposed Population: 160000 people in MMI>=IV
280000 people within 100km
Source: NEIC us6000dk70
Inserted at: 22 Feb 2021 22:30 UTC
INFORM Coping capacity of the alert score: 4.8 (Indonesia)


For more info on GDACS alert score click here.
GDACS score
NEIC 0 0
us6000dk70 Scaled population (raster) 0  
  C1 shakemap -1.73  
  C2 shakemap 0.79  
  Country Vulnerability 0  
  INFORM_normalised 0.96  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1360043 0 22 Feb 2021 19:22 5.7M, 40.01km 3.91 less than 100 (in MMI>=VII) 00:16 NEIC
1360063 0 22 Feb 2021 19:22 5.8M, 16.4km 4.34 less than 100 (in MMI>=VII) 03:08 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 Indonesia , Province of Sulawesi Tengah (population 1,832,441) . The nearest places are Tolau, Diapati, Magege, Bunobagu, Lonu, Blau, Leor, Boeol, Nanomi, Abapi, and Balantia.

Radius Population
100 km 280000 people
75 km 120000 people
50 km 33000 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Sulawesi Tengah Indonesia 1.8 million people
Sulawesi Utara Indonesia 2.6 million people
Kalimantan Timur Indonesia 2 million people
Sulawesi Selatan Indonesia 7.2 million people
Maluku Indonesia 1.9 million people
Western Mindanao Philippines 3.1 million people
Sulawesi Tenggara Indonesia 1.4 million people
Sabah Malaysia 1.6 million people

Affected populated places

Name Region Province Country City class Population Distance
Tolau Gorontalo Indonesia Village - 36 km
Diapati Sulawesi Tengah Indonesia Village - 41 km
Magege Gorontalo Indonesia Village - 46 km
Bunobagu Sulawesi Tengah Indonesia Village - 48 km
Lonu Sulawesi Tengah Indonesia Village - 54 km
Blau Gorontalo Indonesia Village - 54 km
Leor Sulawesi Tengah Indonesia Village - 60 km
Boeol Sulawesi Tengah Indonesia Village - 60 km
Nanomi Sulawesi Tengah Indonesia Village - 64 km
Abapi Gorontalo Indonesia Village - 66 km
Taloean Sulawesi Tengah Indonesia Village - 67 km
Balantia Gorontalo Indonesia Village - 69 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.


Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Buol UOL unknown 0 60 km


Name LOCODE Country Distance
Paleleh Indonesia 35 km
Buol Indonesia 58 km

More information

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