Overall Green Earthquake alert in Hokkaido, Japan Region on 23 May 2022 02:01 UTC

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

M 5.5 in Hokkaido, Japan Region on 23 May 2022 02:01 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:	5.5M
Depth:	30.32 Km
Lat/Lon:	41.2572 , 143.0619
Event Date:	23 May 2022 02:01 UTC 23 May 2022 12:01 Local
Exposed Population:	10 thousand in 100km
Source:	NEIC us6000hn6m
Inserted at:	23 May 2022 02:24 UTC
INFORM Coping capacity of the alert score:	1.1 ()

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0		0
us6000hn6m	Scaled population (vector)	0
	C1 shakemap	-0.59
	C2 shakemap	0.53
	Country Vulnerability	0
	INFORM_normalised	1

Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1444692		0	23 May 2022 02:01	5.5M, 30.32km	3.47	10 thousand (in 100km)		00:23	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 in unknowed a zone. The alertlevel for this event is GREEN

Intensity	Population

Shakemaps Timeline

Shake id #	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	1444692	41.257/143.062	5.5	30.3	3.45	23 May 2022 02:26	00:25	(new episode)
2	1444692	41.257/143.062	5.5	30.3	3.45	23 May 2022 02:40	00:39	(upd of #1)
3	1444692	41.257/143.062	5.5	30.3	3.45	23 May 2022 04:07	02:06	(upd of #2)
4	1444692	41.257/143.062	5.5	30.3	3.45	24 May 2022 02:40	1d 00:39	(upd of #3)
5	1444692	41.226/143.106	5.5	34.0	3.47	30 May 2022 06:50	7d 04:49	(upd of #4)

Affected Provinces

Critical infrastructure

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

More information

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

Disclaimer
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