Overall Orange Earthquake in Japan on 20 Apr 2026 07:53 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve awareness, information exchange and coordination in the first phase after major sudden-onset disasters.

M 7.4 Earthquake and Tsunami (1 m) in Japan on 20 Apr 2026 07:53 UTC

Event summary

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

GDACS ID	EQ 1536386
Earthquake Magnitude:	7.4M
Glide number:	EQ-2026-000057-JPN
Depth:	35 Km
Lat/Lon:	39.9532 , 143.0462
Event Date:	20 Apr 2026 07:53 UTC 20 Apr 2026 17:53 Local
Exposed Population:	330 thousand in MMI VI
Inserted at:	20 Apr 2026 08:12 UTC
INFORM Coping capacity:	1.1 (Japan)
Maximum Wave Height observed:	0.16 m

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		Tsunami		GDACS score
NEIC	0		1		1
us6000sri7	Scaled population (raster)	1.4	Max wave scenario	0.61m
	C1 shakemap	-0.59	Max wave realtime	1.01m
	C2 shakemap	0.53
	Country Vulnerability	0
	INFORM_normalised	0.57

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

7.5-Magnitude Earthquake Strikes Japan, Tsunami Warnings Issued… 4/20/2026 11:22:00 AM.

A strong magnitude 7.5 earthquake has struck off northern Japan, prompting authorities to issue a tsunami warning for waves of up to 3 metres (10 feet). The quake hit on Monday at 4:53pm local time (07:53 GMT) in waters off Iwate prefecture

...(more)

Powerful 7.5-magnitude earthquake strikes off Japan, tsunami alert iss.. 4/20/2026 11:22:00 AM.

{"ENV":"a01/A1s+bABoBUFbYyFsA3xzcAZ3DHdcfGNkCg==","CONTENT_BASE_PROD":"VVpnXVgMd11Ub39EWFRsA3xjVkB0InRNf3NgQHcid1h8cHxAdBxwBXxzcE9jDHQFf3B7W3cccABoXXhPdBxnWHxwfE93HGBCf2NZWnRUY158Y1oGdxxWB3wFeE12MWAGa1p/WmMLY14=","ARC_ACCESS_TOKEN_PROD":"VX

...(more)

Japan issues tsunami advisory after strong 7.4 magnitude earthquake 4/20/2026 11:22:00 AM.

Japan has issued an advisory for northern coastal areas for an increased risk of a possible mega-quake induced by a major quake earlier in the day. Japan has issued an advisory for northern coastal areas for an increased risk of a possible

...(more)

Un terremoto de magnitud de 7,5 golpea Japón y activa la alerta por ts.. 4/20/2026 11:21:00 AM.

Un terremoto de magnitud 7,5 golpeó, este lunes 20 de abril de 2026, la costa oriental del centro y noreste de Japón, con una profundidad de 10 kilómetros, y llevó a las autoridades niponas a activar la alerta por tsunami , según informó la

...(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

Analytical products

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (88), NEIC (5), OCHA (1), WMO (2), USGS (5), (3), INFORM (4),

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