Overall Green Earthquake in Japan on 25 Feb 2023 13:27 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 6.1 in Japan on 25 Feb 2023 13:27 UTC

Hazard models

Rapid Impact

Shakemap

Tsunami

Event summary

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude:	6.1M
Depth:	42.866 Km
Lat/Lon:	42.7507 , 145.1347
Event Date:	25 Feb 2023 13:27 UTC 25 Feb 2023 23:27 Local
Exposed Population:	10 thousand in MMI V
Source:	NEIC us6000jrjl
Inserted at:	25 Feb 2023 13:46 UTC
INFORM Coping capacity of the alert score	1.1 (Japan)

GDACS Score

For more info on GDACS score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0		0
us6000jrjl	Scaled population (raster)	0
	C1 shakemap	0
	C2 shakemap	0
	Country Vulnerability	0
	INFORM_normalised	0

Maximum expected impact using different data sources.

Episode Timeline

ID	Level	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1492097		0	25 Feb 2023 13:27	6.1M, 42.866km	4.76	N/A (in MMI>=VII)		00:18	NEIC
1492114		0	25 Feb 2023 13:27	6M, 50.181km	4.63	N/A (in MMI>=VII)		00:48	NEIC

The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.

The episode that has the last updated information.

* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened off shore.

Radius	Population
100 km	300000 people
75 km	220000 people
50 km	16000 people
20 km	no people
10 km	no people
5 km	no people
2 km	no people

Affected Provinces

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)	Distance
Kushiro	KUH	95	Civ.	Paved	Yes	7500	83 km
Nakashibetsu	SHB	65	Civ.	Paved	Yes	6500	93 km

Ports

Name	LOCODE	Country	Distance
Akkeshi	JPAKE	Japan	39 km
Kushiro	JPKUH	Japan	67 km
Hanasaki		Japan	69 km
Nemuro	JPNEM	Japan	73 km

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.

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