M 5.6 in Japan on 21 Apr 2026 18:44 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 1536683
Earthquake Magnitude: 5.6M
Depth: 35 Km
Lat/Lon: 40.1562 , 143.4599
Event Date: 21 Apr 2026 18:44 UTC
22 Apr 2026 04:44 Local
Exposed Population: 1.1 million in MMI III
Inserted at: 21 Apr 2026 19:05 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
us6000srvu 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, 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

Giappone lancia allerta per possibile maxi terremoto nel nord 4/22/2026 12:38:00 PM.

TOKYO, 20 APR - L''Agenzia nazionale meteorologica giapponese (Jma) ha emesso un''allerta riguardo la possibilità di un " mega-terremoto " nel nord del Paese. Secondo l''agenzia, esiste una concreta probabilità che un evento sismico di gran
...(more)
Japan Issues Strong Earthquake Warning, Bulgarian Foreign Ministry War.. 4/22/2026 12:35:00 PM.

Japan has issued a warning about a potentially strong earthquake with a magnitude of 8 or higher, which is likely to affect mainly the areas along the Kuril Trench and the Japan Trench over the coming week, the Bulgarian Ministry of Foreign
...(more)
Terremoto in Giappone, registrate onde di 80 centimetri nel nord del P.. 4/22/2026 9:44:00 AM.

Le autorità hanno ordinato l''evacuazione dalle zone costiere per allerta tsunami. Le autorità hanno ordinato l''evacuazione dalle zone costiere per allerta tsunami. In Giappone il forte terremoto di questa mattina, con una magnitudo rivi
...(more)
Japan Is Used to Earthquakes, but What About a Big One? 4/22/2026 9:28:00 AM.

A 7.4-magnitude earthquake jolted Japan this week and set off a tsunami warning, but shoppers at one grocery store simply steadied their carts and kept browsing as the building shook. Within hours, Tokyo’s subways were once again packed and
...(more)

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