Overall Green Earthquake alert in Japan on 18 Jan 2019 20:04 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 4.9 in Japan on 18 Jan 2019 20:04 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:	4.9M
Depth:	39.2 Km
Lat/Lon:	40.7964 , 142.4008
Event Date:	18 Jan 2019 20:04 UTC 19 Jan 2019 05:04 Local
Exposed Population:	440000 people within 100km
Source:	NEIC us2000j61y
Inserted at:	19 Jan 2019 17:12 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
us2000j61y	Scaled population (vector)	4.71
	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
1245559		0	18 Jan 2019 20:04	5.2M, 47.86km	N/A	480 thousand (in 100km)		00:15	NEIC
1245615		0	18 Jan 2019 20:04	4.9M, 39.2km	N/A	450 thousand (in 100km)		21:08	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) .

Radius	Population
100 km	450000 people
75 km	16000 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

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
Hachinohe	HHE	46	Mil.	Paved	Yes	7300	84 km
Misawa Naf	MSJ	36	Mil.	Paved	Yes	10000	88 km

Ports

Name	LOCODE	Country	Distance
Hachinohe	JPHHE	Japan	77 km
Fudai		Japan	97 km

Dams

Reservoir	Dam Name	River	Year	Distance
Yukiyagawa	Yukiyagawa	Yukiyagawa	1976	94 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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