M 5.2 in Indonesia on 15 Sep 2021 00:49 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: 5.2M
Depth: 62.38 Km
Lat/Lon: 1.1387 , 122.1215
Event Date: 15 Sep 2021 00:49 UTC
15 Sep 2021 08:49 Local
Exposed Population:
700 thousand in 100km
Source: NEIC us7000fb83
Inserted at: 15 Sep 2021 01:35 UTC
INFORM Coping capacity of the alert score: 4.8 (Indonesia)


For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us7000fb83 Scaled population (vector) 5.57  
  C1 earthquake 1.54  
  C2 earthquake -0.64  
  Country Vulnerability 0.09  
  INFORM_normalised 0.96  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1396763 0 15 Sep 2021 00:49 5.2M, 62.38km N/A 700 thousand (in 100km) 00:45 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 Utara (population 2,665,773) . The nearest places are Magege, Blau, Tolau, Abapi, Balantia, Diapati, Sumalata, Bunobagu, Lonu, Bonga, and Doelamajo.

Radius Population
100 km 690000 people
75 km 300000 people
50 km 54000 people
20 km 12000 people
10 km <1000 people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Sulawesi Utara Indonesia 2.6 million people
Sulawesi Tengah Indonesia 1.8 million people

Affected populated places

Name Region Province Country City class Population Distance
Magege Gorontalo Indonesia Village - 13 km
Blau Gorontalo Indonesia Village - 20 km
Tolau Gorontalo Indonesia Village - 23 km
Abapi Gorontalo Indonesia Village - 33 km
Balantia Gorontalo Indonesia Village - 37 km
Diapati Sulawesi Tengah Indonesia Village - 44 km
Sumalata Gorontalo Indonesia Village - 45 km
Bunobagu Sulawesi Tengah Indonesia Village - 54 km
Lonu Sulawesi Tengah Indonesia Village - 63 km
Bonga Gorontalo Indonesia Village - 66 km
Naimoe Gorontalo Indonesia Village - 66 km
Doelamajo Gorontalo Indonesia Village - 67 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 77 km
Jalaluddin GTO 18 Mil. Paved No 5400 98 km


Name LOCODE Country Distance
Paleleh Indonesia 36 km
Buol Indonesia 75 km
Kuandang Indonesia 93 km

More information

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