Overall Green Earthquake alert in Japan on 17 Mar 2022 12:30 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 4.6 in Japan on 17 Mar 2022 12:30 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:	4.6M
Depth:	59.46 Km
Lat/Lon:	37.9936 , 141.9427
Event Date:	17 Mar 2022 12:30 UTC 17 Mar 2022 21:30 Local
Exposed Population:	1.6 million in 100km
Source:	NEIC us6000h5d7
Inserted at:	17 Mar 2022 13:01 UTC
INFORM Coping capacity of the alert score	1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
NEIC	0		0
us6000h5d7	Scaled population (vector)	5.28
	C1 earthquake	0.73
	C2 earthquake	-0.22
	Country Vulnerability	-0.71
	INFORM_normalised	0.57

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1431777		0	17 Mar 2022 12:30	4.6M, 59.46km	N/A	1.6 million (in 100km)		00:31	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 Tohoku (population 9,984,608) . The nearest places are Futawatashi, Oshika, Ayukawahama, Aji, Niiyama, Ikenohama, Kukunari, Oharahama, Tomari, Kobuchi, and Sendai.

Radius	Population
100 km	1.6 million people
75 km	78000 people
50 km	1800 people
20 km	no people
10 km	no people
5 km	no people
2 km	no people

Affected Provinces

Region Province	Country	Population
Tohoku	Japan	10 million people
Kanto	Japan	38.5 million people
Chubu	Japan	5.2 million people
Hokkaido	Japan	5.8 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Futawatashi	Miyagi	Japan	Village	-	49 km
Oshika	Miyagi	Japan	Village	-	50 km
Ayukawahama	Miyagi	Japan	Village	-	51 km
Aji	Miyagi	Japan	Village	-	51 km
Niiyama	Miyagi	Japan	Village	-	51 km
Ikenohama	Miyagi	Japan	Village	-	52 km
Kukunari	Miyagi	Japan	Village	-	53 km
Oharahama	Miyagi	Japan	Village	-	54 km
Tomari	Miyagi	Japan	Village	-	55 km
Kobuchi	Miyagi	Japan	Village	-	55 km
Yoriiso	Miyagi	Japan	Village	-	57 km
Nitoda	Miyagi	Japan	Village	-	57 km
Odomari	Miyagi	Japan	Village	-	57 km
Yagawa	Miyagi	Japan	Village	-	58 km
Koamikura	Miyagi	Japan	Village	-	58 km
Samenoura	Miyagi	Japan	Village	-	59 km
Fukkiura	Miyagi	Japan	Village	-	59 km
Kitsunezaki	Miyagi	Japan	Village	-	60 km
Takenohama	Miyagi	Japan	Village	-	61 km
Terama	Miyagi	Japan	Village	-	61 km
Izushima	Miyagi	Japan	Village	-	64 km
Kotake	Miyagi	Japan	Village	-	66 km
Onagawahama	Miyagi	Japan	Village	-	66 km
Ommaehama	Miyagi	Japan	Village	-	67 km
Kuwahama	Miyagi	Japan	Village	-	67 km
Kumazawa	Miyagi	Japan	Village	-	67 km
Tatsuhama	Miyagi	Japan	Village	-	68 km
Osu	Miyagi	Japan	Village	-	68 km
Watanoha	Miyagi	Japan	Village	-	70 km
Ohama	Miyagi	Japan	Village	-	70 km
Sendai	Miyagi	Japan	Major city	1 million people	97 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
Matsushima		2	Civ.	Paved	Yes	8800	78 km
Sendai	SDJ	5	Civ.	Paved	Yes	9800	91 km
Kasuminome		5				0	92 km

Ports

Name	LOCODE	Country	Distance
Onagawa	JPONG	Japan	66 km
Ishinomaki	JPISM	Japan	72 km
Shiogama	JPSGM	Japan	88 km
Soma	JPSMA	Japan	88 km

Dams

Reservoir	Dam Name	River	Year	Distance
Tarumizuko	Tarumizu	Masudagawa	1976	99 km

Nuclear plants

Name	Country	Reactors	Distance
ONAGAWA	JAPAN	3	59 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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