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

Alerta de tsunami en Japón tras potente terremoto de magnitud 7.6 4/20/2026 1:24:00 PM.

Este lunes 20 de abril de 2026, un terremoto de magnitud 7.6 en la escala de Richter sacudió el noreste de Japón, activando de inmediato las alarmas de tsunami en diversas regiones del país. Según el reporte de la Agencia Meteorológica de J

...(more)

Emiten alerta de tsunami en Japón tras terremoto de 7,5 al norte del p.. 4/20/2026 1:23:00 PM.

Caracas.- La Agencia Meteorológica de Japón emitió un alerta de tsunami tras un potente terremoto de magnitud 7,5 en la costa norte del país. “Evacúen de inmediato las regiones costeras y las zonas cercanas a ríos hacia un lugar más seguro,

...(more)

Terremoto en Japón: alerta de tsunami tras sismo de 7.4 Richter 4/20/2026 1:23:00 PM.

Japón ha experimentado varios sismos de gran magnitud en los últimos días, generando alertas de tsunami y activando protocolos de emergencia en todo el país. El primer evento registrado fue un terremoto de 7.4 en la escala de Richter, segui

...(more)

Tsunami hits northern Japan after earthquake, no damage reported 4/20/2026 1:23:00 PM.

The earthquake was centred off the....

View more news

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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