Overall Green Earthquake alert in Japan on 04 Apr 2022 10:44 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 4.5 in Japan on 04 Apr 2022 10:44 UTC

Hazard models

EQ parameters

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:	4.5M
Depth:	34.39 Km
Lat/Lon:	26.8241 , 126.4907
Event Date:	04 Apr 2022 10:44 UTC 04 Apr 2022 18:44 Local
Exposed Population:	10 thousand in 100km
Source:	NEIC us7000h0nw
Inserted at:	11 Apr 2022 09:52 UTC
INFORM Coping capacity of the alert score	1.1 (Japan)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
NEIC	0		0
us7000h0nw	Scaled population (vector)	3.72
	C1 earthquake	1
	C2 earthquake	0
	Country Vulnerability	0
	INFORM_normalised	1

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1436485		0	04 Apr 2022 10:44	4.5M, 34.39km	N/A	10 thousand (in 100km)		6d 23:07	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 Japan , Region of Okinawa (population 1,242,315) . The nearest places are Nakachi, Ohara, Nishime, Nakadomari, Gima, Maja, Tomari, Fuija, and Shimajiri.

Radius	Population
100 km	9900 people
75 km	8700 people
50 km	<1000 people
20 km	no people
10 km	no people
5 km	no people
2 km	no people

Affected Provinces

Region Province	Country	Population
Okinawa	Japan	1.2 million people
Kyushu	Japan	13.3 million people
Taiwan	China	22.5 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Nakachi	Okinawa	Japan	Village	-	56 km
Ohara	Okinawa	Japan	Village	-	56 km
Nishime	Okinawa	Japan	Village	-	57 km
Nakadomari	Okinawa	Japan	Village	-	58 km
Gima	Okinawa	Japan	Village	-	60 km
Maja	Okinawa	Japan	Village	-	60 km
Tomari	Okinawa	Japan	Village	-	61 km
Fuija	Okinawa	Japan	Village	-	62 km
Shimajiri	Okinawa	Japan	Village	-	66 km

see full list

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
Kumejima	UEO	7	Civ.	Paved	Yes	6500	56 km

Ports

Name	LOCODE	Country	Distance
Kume Island		Japan	56 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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