M 5.1 in Indonesia on 28 Oct 2021 02:32 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: 5.1M
Depth: 129.62 Km
Lat/Lon: -7.4955 , 128.4359
Event Date: 28 Oct 2021 02:32 UTC
28 Oct 2021 11:32 Local
Exposed Population:
50 thousand in 100km
Source: NEIC us7000fpbe
Inserted at: 28 Oct 2021 23:26 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
us7000fpbe Scaled population (vector) 3.82  
  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
1405247 0 28 Oct 2021 02:32 5.1M, 133.91km N/A 30 thousand (in 100km) 00:20 NEIC
1405445 0 28 Oct 2021 02:32 5.1M, 129.62km N/A 50 thousand (in 100km) 20:54 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 Maluku (population 1,991,398) . The nearest places are Kehli, Kenli, Batumerah, Wulur, and Bebar.

Radius Population
100 km 53000 people
75 km <1000 people
50 km <1000 people
20 km <1000 people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Maluku Indonesia 2 million people
Timor-Leste Timor-Leste 860000 people
Nusa Tenggara Timur Indonesia 3.5 million people
Northern Territory Australia 160000 people

Affected populated places

Name Region Province Country City class Population Distance
Kehli Maluku Indonesia Village - 44 km
Kenli Maluku Indonesia Village - 46 km
Batumerah Maluku Indonesia Village - 49 km
Wulur Maluku Indonesia Village - 49 km
Bebar Maluku Indonesia Village - 49 km

see full list

Critical infrastructure

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


Name LOCODE Country Distance
Sermata Island Indonesia 88 km
Moa Island Indonesia 90 km

More information

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