Overall Green Earthquake alert in Japan on 30 May 2023 00:52 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 5.8 in Japan on 30 May 2023 00:52 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:	5.8M
Depth:	10 Km
Lat/Lon:	24.0611 , 143.0263
Event Date:	30 May 2023 00:52 UTC 30 May 2023 10:52 Local
Exposed Population:
Source:	NEIC us7000k4w1
Inserted at:	30 May 2023 01:22 UTC
INFORM Coping capacity of the alert score:	1.1 (Japan)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0		0
us7000k4w1	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
1508273		0	30 May 2023 00:52	5.8M, 10km	3.06	N/A (in MMI>=VII)		00:30	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
	no people

Shakemaps Timeline

Shake id #	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	1508273	143.026/24.061	5.8	10	3.048	30 May 2023 01:28	00:36	(new episode)
2	1508273	142.992/24.047	5.8	10	3.062	30 May 2023 02:12	01:20	(upd of #1)
3	1508273	142.992/24.047	5.8	10	3.062	30 May 2023 02:58	02:06	(upd of #2)
4	1508273	142.992/24.047	5.8	10	3.062	31 May 2023 01:40	1d 00:48	(upd of #3)

Affected Provinces

Critical infrastructure

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

Ports

Intensity	Name	LOCODE	Country	Distance
	Minami Lo		Japan	159 km
	Minami Lo		Japan	159 km

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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