Overall Green Earthquake alert in Japan on 21 Jan 2017 11:54 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 4.8 in Japan on 21 Jan 2017 11:54 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:	4.8M
Depth:	Km
Lat/Lon:	40.6429 , 142.3952
Event Date:	21 Jan 2017 11:54 UTC 21 Jan 2017 20:54 Local
Exposed Population:	170000 people within 100km
Source:	NEIC us10007um8
Inserted at:	21 Jan 2017 12:18 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
us10007um8	Scaled population (vector)	0
	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
1154740		0	21 Jan 2017 11:54	4.8M, 39.15km	N/A	170 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 Japan , Region of Tohoku (population 9,984,608) . The nearest places are Yagi, Tamagawa, Taneichi, Kawasiri, Kawajiri, Okubo, Kadonohama, Uge, Shiromae, Denkiani, and Shirahama.

Radius	Population
100 km	170000 people
75 km	no people
50 km	no 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
Hokkaido	Japan	5.8 million people
Sakhalinskaya oblast'	Russian Federation	730000 people
Kanto	Japan	38.5 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Yagi	Iwate	Japan	Village	-	63 km
Tamagawa	Iwate	Japan	Village	-	63 km
Taneichi	Iwate	Japan	Village	-	63 km
Kawasiri	Iwate	Japan	Village	-	64 km
Kawajiri	Iwate	Japan	Village	-	65 km
Okubo	Iwate	Japan	Village	-	65 km
Kadonohama	Iwate	Japan	Village	-	65 km
Uge	Iwate	Japan	Village	-	65 km
Shiromae	Iwate	Japan	Village	-	65 km
Denkiani	Iwate	Japan	Village	-	66 km
Kita-Samuraihama	Iwate	Japan	Village	-	66 km
Okkoshi	Aomori	Japan	Village	-	66 km
Minami-Samuraihama	Iwate	Japan	Village	-	67 km
Honnami	Iwate	Japan	Village	-	67 km
Okuki	Aomori	Japan	Village	-	67 km
Kanahama	Aomori	Japan	Village	-	67 km
Uwano	Aomori	Japan	Village	-	68 km
Sunasawa	Iwate	Japan	Village	-	68 km
Mimigahoe	Aomori	Japan	Village	-	70 km
Jonai	Iwate	Japan	Village	-	70 km
Shirahama	Aomori	Japan	Village	-	70 km

see full list

Critical infrastructure

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

Ports

Name	LOCODE	Country	Distance
Hachinohe	JPHHE	Japan	72 km
Fudai		Japan	81 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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