M 4.5 in Indonesia on 20 Sep 2021 14:09 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: 4.5M
Depth: 142.6 Km
Lat/Lon: -7.1312 , 129.495
Event Date: 20 Sep 2021 14:09 UTC
20 Sep 2021 23:09 Local
Exposed Population:
20 thousand in 100km
Source: NEIC us7000fcvq
Inserted at: 20 Sep 2021 14:33 UTC
INFORM Coping capacity of the alert score
4.8 (Indonesia)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us7000fcvq Scaled population (vector) 3.57  
  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
1397677 0 20 Sep 2021 14:09 4.5M, 142.6km N/A 20 thousand (in 100km) 00:24 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 Wotai, Layeni, Rumadai, and Lewa.

Radius Population
100 km 18000 people
75 km 1100 people
50 km <1000 people
20 km no 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
Northern Territory Australia 160000 people
Nusa Tenggara Timur Indonesia 3.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Wotai Maluku Indonesia Village - 41 km
Layeni Maluku Indonesia Village - 42 km
Rumadai Maluku Indonesia Village - 43 km
Lewa Maluku Indonesia Village - 53 km

see full list

Critical infrastructure

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

Ports

Name LOCODE Country Distance
Tepa Indonesia 82 km

More information

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