M 5.1 in Indonesia on 17 Apr 2026 23:21 UTC

Event summary

This earthquake can have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID EQ 1535951
Earthquake Magnitude: 5.1M
Depth: 121 Km
Lat/Lon: 0.0691 , 123.7912
Event Date: 17 Apr 2026 23:21 UTC
18 Apr 2026 07:21 Local
Exposed Population:
250 thousand in MMI IV
Inserted at: 18 Apr 2026 02:31 UTC
INFORM Coping capacity:
1.1 (Indonesia)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 GDACS score
NEIC 0 0
us6000sqzl Scaled population (vector) 0  
  C1 rapid impact 0  
  C2 rapid impact 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
Maximum expected impact using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Detailed event map. European Union, 2026. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

intanto Terremoto di magnitudo 7.3 in Indonesia, scatta l’allerta tsun.. 4/21/2026 1:22:00 PM.

Terremoto di magnitudo 7.3 in Indonesia, scatta l’allerta tsunami: il mare si ritira improvvisamente. Una forte scossa di terremoto di magnitudo 7.3 è stata registrata in Indonesia , secondo le prime rilevazioni dei centri sismologici inte
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Earthquake of 6 magnitude hits off Indonesia''s Timor island, geophysi.. 4/21/2026 9:43:00 AM.

JAKARTA, April 21 (Reuters) – An ?earthquake ?of 6 magnitude struck ?offshore ?Indonesia’s ?Timor island, ?the country’s geophysics agency said ?on Tuesday, ?adding ?there ?was no ?tsunami risk from ?the quake. The epicentre ?was at a depth
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Earthquake of 6 magnitude hits off Indonesia''s Timor island, geophysi.. 4/21/2026 9:32:00 AM.

JAKARTA, April 21 (Reuters) – An ?earthquake ?of 6 magnitude struck ?offshore ?Indonesia’s ?Timor island, ?the country’s geophysics agency said ?on Tuesday, ?adding ?there ?was no ?tsunami risk from ?the quake. The epicentre ?was at a depth
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Earthquake of 6 magnitude hits off Indonesia''s Timor island, geophysi.. 4/21/2026 9:30:00 AM.

JAKARTA, April 21 (Reuters) – An ?earthquake ?of 6 magnitude struck ?offshore ?Indonesia’s ?Timor island, ?the country’s geophysics agency said ?on Tuesday, ?adding ?there ?was no ?tsunami risk from ?the quake. The epicentre ?was at a depth
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Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (41), NEIC (4), OCHA (1), DesInventar (1), WMO (1), (2), INFORM (2), USGS (2),