Overall Green Earthquake alert in Japan on 22 Oct 2012 09:27 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 22 Oct 2012 09:27 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:	Km
Lat/Lon:	38.0197 , 141.889
Event Date:	22 Oct 2012 09:27 UTC 22 Oct 2012 18:27 Local
Exposed Population:	1990000 people within 100km
Source:	NEIC usb000daka
Inserted at:	22 Oct 2012 10:28 UTC

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
NEIC	0.5		0.5
usb000daka	Scaled population (vector)	n.a
	C1 earthquake	n.a
	C2 earthquake	n.a
	Country Vulnerability	n.a
	INFORM_normalised	n.a

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
120387		0.5	22 Oct 2012 09:27	4.6M, 53.9km	N/A	2 million (in 100km)		01:01	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	1.8 million people
75 km	100000 people
50 km	5100 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	-	43 km
Oshika	Miyagi	Japan	Village	-	44 km
Ayukawahama	Miyagi	Japan	Village	-	46 km
Aji	Miyagi	Japan	Village	-	46 km
Niiyama	Miyagi	Japan	Village	-	46 km
Ikenohama	Miyagi	Japan	Village	-	47 km
Kukunari	Miyagi	Japan	Village	-	47 km
Oharahama	Miyagi	Japan	Village	-	49 km
Tomari	Miyagi	Japan	Village	-	49 km
Kobuchi	Miyagi	Japan	Village	-	50 km
Nitoda	Miyagi	Japan	Village	-	52 km
Odomari	Miyagi	Japan	Village	-	52 km
Yoriiso	Miyagi	Japan	Village	-	52 km
Yagawa	Miyagi	Japan	Village	-	52 km
Koamikura	Miyagi	Japan	Village	-	53 km
Samenoura	Miyagi	Japan	Village	-	53 km
Fukkiura	Miyagi	Japan	Village	-	54 km
Kitsunezaki	Miyagi	Japan	Village	-	55 km
Takenohama	Miyagi	Japan	Village	-	55 km
Terama	Miyagi	Japan	Village	-	56 km
Izushima	Miyagi	Japan	Village	-	58 km
Kotake	Miyagi	Japan	Village	-	60 km
Onagawahama	Miyagi	Japan	Village	-	61 km
Ommaehama	Miyagi	Japan	Village	-	61 km
Kuwahama	Miyagi	Japan	Village	-	62 km
Kumazawa	Miyagi	Japan	Village	-	63 km
Tatsuhama	Miyagi	Japan	Village	-	63 km
Osu	Miyagi	Japan	Village	-	64 km
Watanoha	Miyagi	Japan	Village	-	64 km
Ohama	Miyagi	Japan	Village	-	65 km
Ogatsu	Miyagi	Japan	Village	-	65 km
Funagoshi	Miyagi	Japan	Village	-	66 km
Inai	Miyagi	Japan	Village	-	68 km
Mizunuma	Miyagi	Japan	Village	-	68 km
Ishinomaki	Miyagi	Japan	City	120000 people	69 km
Sendai	Miyagi	Japan	Major city	1 million people	91 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	73 km
Sendai	SDJ	5	Civ.	Paved	Yes	9800	86 km
Kasuminome		5				0	87 km

Ports

Name	LOCODE	Country	Distance
Onagawa	JPONG	Japan	61 km
Ishinomaki	JPISM	Japan	66 km
Shiogama	JPSGM	Japan	82 km
Soma	JPSMA	Japan	84 km
Kesennuma Ko		Japan	98 km

Dams

Reservoir	Dam Name	River	Year	Distance
Tarumizuko	Tarumizu	Masudagawa	1976	94 km
Takanokura	Takanokura	Mizunashigawa	1975	98 km
Yokokawa	Yokokawa	Otagawa	1983	98 km
Naganuma	Naganuma	Hazamagawa	2005	100 km

Nuclear plants

Name	Country	Reactors	Distance
ONAGAWA	JAPAN	3	54 km

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.