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

WHAT’S HOT TODAY — April 20, 2026 4/20/2026 3:47:00 PM.

an oil market on edge, and domestic pressures in Morocco — here is what’s driving today’s news. In Asia, Japan is on high alertafter a powerful earthquake. A magnitude 7.5 tremor struck off the northern coast. of Iwate Prefecture on Monday

...(more)

Séisme au Japon 4/20/2026 3:45:00 PM.

Sur l’archipel isolé de Tokara, au sud du Japon, la terre ne cesse de trembler : plus de 900 séismes en dix jours plongent les habitants dans une angoisse permanente. Entre fatigue, insomnies et peur d’un séisme majeur, la population vit au

...(more)

Le Japon craint un séisme « majeur » après une secousse de 7,7 et un a.. 4/20/2026 3:45:00 PM.

Un séisme d’une magnitude de 7,7 s’est produit lundi à 16h53 (9h53, heure française) dans les eaux du Pacifique, au large du nord de la préfecture d’Iwate, selon l’Agence météorologique japonaise (JMA). Celle-ci a alors émis une alerte au t

...(more)

Japan lifts tsunami warning after 7.4 magnitude quake, warns of more t.. 4/20/2026 3:44:00 PM.

Japan Meteorological Agency warns of more earthquakes of similar scale this week. Authorities in Japan lifted a tsunami warning on Monday after a 7.4-magnitude earthquake jolted the country on Monday evening local time, causing tsunami-like

...(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 (76), NEIC (5), OCHA (1), WMO (2), USGS (5), (3), INFORM (4),

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