M 5.7 in Japan on 21 Aug 2025 22:34 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 1496927
Earthquake Magnitude: 5.7M
Depth: 50 Km
Lat/Lon: 38.7089 , 142.0883
Event Date: 21 Aug 2025 22:34 UTC
22 Aug 2025 07:34 Local
Exposed Population: 1.4 million in MMI IV
Inserted at: 21 Aug 2025 22:54 UTC
INFORM Coping capacity:
1.1 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000r2uz Scaled population (raster) 0  
  C1 shakemap 0  
  C2 shakemap 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, 2025. 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

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Applied Sciences, Vol. 15, Pages 9325: APMEG: Quadratic Time–Frequency.. 8/25/2025 11:54:00 AM.

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The technologies were demonstrated in Tsukuba City as part of Japan’s CAFE Project, aiming to reduce human risk in disaster zones. Updated: Aug 25, 2025 05:26 AM EST.

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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 (48), (3), NEIC (4), OCHA (1), INGV (1), WMO (1), USGS (5), INFORM (2),