Overall Green Earthquake alert in Japan on 23 Jan 2016 21:33 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 23 Jan 2016 21:33 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:	20.21 Km
Lat/Lon:	35.9977 , 140.7826
Event Date:	23 Jan 2016 21:33 UTC 24 Jan 2016 06:33 Local
Exposed Population:	14894864 people within 100km
Source:	NEIC
Inserted at:	23 Jan 2016 22:39 UTC

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
NEIC	0		0
	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
1116168		0	23 Jan 2016 21:33	4.6M, 20.21km	N/A	14.9 million (in 100km)		01:05	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 Kanto (population 38,543,000) . The nearest places are Koya, Kashima, Kyuchu, Aotsuka, Obunatsu, Okunoya, Hamatsuga, Omi, Narage, Kyochikama, and Tokyo.

Radius	Population
100 km	15.3 million people
75 km	5.3 million people
50 km	1.2 million people
20 km	150000 people
10 km	<1000 people
5 km	no people
2 km	no people

Affected Provinces

Region Province	Country	Population
Kanto	Japan	38.5 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Koya	Ibaraki	Japan	Village	-	12 km
Kashima	Ibaraki	Japan	Village	65000 people	14 km
Kyuchu	Ibaraki	Japan	Village	-	14 km
Aotsuka	Ibaraki	Japan	Village	-	15 km
Obunatsu	Ibaraki	Japan	Village	-	15 km
Okunoya	Ibaraki	Japan	Village	-	16 km
Hamatsuga	Ibaraki	Japan	Village	-	16 km
Omi	Ibaraki	Japan	Village	-	16 km
Narage	Ibaraki	Japan	Village	-	18 km
Kyochikama	Ibaraki	Japan	Village	-	19 km
Negoya	Ibaraki	Japan	Village	-	21 km
Ushibori	Ibaraki	Japan	Village	-	21 km
Muyokama	Ibaraki	Japan	Village	-	21 km
Yatabe	Ibaraki	Japan	Village	-	22 km
Omigawa	Chiba	Japan	City	25000 people	22 km
Taiyo	Ibaraki	Japan	Village	-	22 km
Nekoya	Ibaraki	Japan	Village	-	22 km
Idako	Ibaraki	Japan	Village	-	22 km
Fuda	Ibaraki	Japan	Village	-	22 km
Yoshikawa	Ibaraki	Japan	Village	-	23 km
Dainigorisawa	Ibaraki	Japan	Village	-	23 km
Yamada	Ibaraki	Japan	Village	-	24 km
Aonuma	Ibaraki	Japan	Village	-	24 km
Otake	Ibaraki	Japan	Village	-	26 km
Itako	Ibaraki	Japan	Village	25000 people	26 km
Kofunatsu	Ibaraki	Japan	Village	-	27 km
Takata	Ibaraki	Japan	Village	-	27 km
Aso	Ibaraki	Japan	Village	-	27 km
Obata	Ibaraki	Japan	Village	-	28 km
Choshi	Chiba	Japan	City	84000 people	29 km
Katsuori	Ibaraki	Japan	Village	-	29 km
Hokota	Ibaraki	Japan	Village	28000 people	29 km
Oshita	Ibaraki	Japan	Village	-	30 km
Kubo	Ibaraki	Japan	Village	-	31 km
Noda	Ibaraki	Japan	Village	-	31 km
Iina	Ibaraki	Japan	Village	-	31 km
Ambo	Ibaraki	Japan	Village	-	31 km
Inoue	Ibaraki	Japan	Village	-	31 km
Owana	Ibaraki	Japan	Village	-	32 km
Asahi Yokaichiba	Chiba	Japan	Village	-	33 km
Tokawacho	Chiba	Japan	Village	-	34 km
Inuwaka	Chiba	Japan	Village	-	34 km
Kamigama	Ibaraki	Japan	Village	-	34 km
Kamiyama	Ibaraki	Japan	Village	-	35 km
Asahi	Ibaraki	Japan	Village	-	35 km
Torinosu	Ibaraki	Japan	Village	-	35 km
Kansaki	Chiba	Japan	Village	-	36 km
Ishiyatsudo	Ibaraki	Japan	Village	-	36 km
Koda	Ibaraki	Japan	Village	-	36 km
Oyagaw	Ibaraki	Japan	Village	-	37 km
Funaki	Ibaraki	Japan	Village	-	37 km
Oyama	Ibaraki	Japan	Village	-	37 km
Natsumi	Ibaraki	Japan	Village	-	38 km
Nagasu	Ibaraki	Japan	Village	-	38 km
Aruga	Ibaraki	Japan	Village	-	39 km
Ino	Chiba	Japan	Village	-	39 km
Hangu	Ibaraki	Japan	Village	-	39 km
Tonouchi	Ibaraki	Japan	Village	-	39 km
Momiji	Ibaraki	Japan	Village	-	40 km
Kashiwazaki	Ibaraki	Japan	Village	-	40 km
Tako	Chiba	Japan	City	-	41 km
Yaida	Ibaraki	Japan	Village	-	41 km
Ebisawa	Ibaraki	Japan	Village	-	41 km
Owada	Ibaraki	Japan	Village	-	41 km
Edosaki	Ibaraki	Japan	Village	21000 people	42 km
Torihada	Ibaraki	Japan	Village	-	43 km
Namegawa	Chiba	Japan	Village	-	43 km
Tamatsukuri	Ibaraki	Japan	Village	-	43 km
Ogushi	Ibaraki	Japan	Village	-	43 km
Morido	Ibaraki	Japan	Village	-	43 km
Ogawa	Ibaraki	Japan	Village	-	43 km
Shishikura	Ibaraki	Japan	Village	-	43 km
Kihara	Ibaraki	Japan	Village	-	44 km
Akiba	Ibaraki	Japan	Village	-	44 km
Kai-Tamari	Ibaraki	Japan	Village	-	45 km
Sakihama	Ibaraki	Japan	Village	-	45 km
Miyata	Ibaraki	Japan	Village	-	45 km
Nakaminato	Ibaraki	Japan	Village	31000 people	45 km
Iioka	Ibaraki	Japan	Village	-	46 km
Sanga	Ibaraki	Japan	Village	-	46 km
Kotsuru	Ibaraki	Japan	Village	-	46 km
Narita	Chiba	Japan	City	100000 people	46 km
Nakane	Ibaraki	Japan	Village	-	46 km
Katakura	Ibaraki	Japan	Village	-	46 km
Yokoshiba	Chiba	Japan	Village	-	47 km
Yoshisawa	Ibaraki	Japan	Village	-	47 km
Okunoya	Ibaraki	Japan	Village	-	48 km
Mazunochi	Ibaraki	Japan	Village	-	48 km
Takehara	Ibaraki	Japan	Village	-	48 km
Noso	Ibaraki	Japan	Village	-	49 km
Iinuma	Ibaraki	Japan	Village	-	50 km
Ishioka	Ibaraki	Japan	Village	52000 people	50 km
Semba	Ibaraki	Japan	Village	-	50 km
Nagasuna	Ibaraki	Japan	Village	-	50 km
Ryugasaki	Chiba	Japan	Village	85000 people	51 km
Takata	Ibaraki	Japan	Village	-	51 km
Tetsutsumi	Ibaraki	Japan	Village	-	51 km
Tsuchida	Ibaraki	Japan	Village	-	52 km
Ago	Ibaraki	Japan	Village	-	52 km
Hasunuma	Chiba	Japan	Village	-	52 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
Hyakuri		32	Mil.	Paved	Yes	8800	39 km
Tokyo Narita International	NRT	42	Civ.	Paved	Yes	13100	44 km
Ryugasaki		2				0	50 km
Ryugasaki South		2				0	51 km
		26				0	53 km
Shimoshizu		30				0	68 km
Shimofusa		30	Civ.	Paved	Yes	7300	73 km
Chiba-ken		19				0	88 km
Suzumenomiya		82				0	98 km

Ports

Name	LOCODE	Country	Distance
Kashima	JPKSM	Japan	13 km
Choshi	JPCHO	Japan	29 km
Hitachi	JPHTC	Japan	57 km
Chiba	JPCHB	Japan	75 km
Anegasaki	JPANE	Japan	75 km
Goi	JPGOI	Japan	80 km
Katunan Ko		Japan	81 km
Ogasawara	JPOGA	Japan	96 km
Tokyo	JPTYO	Japan	98 km

Dams

Reservoir	Dam Name	River	Year	Distance
Kasumigaura	Kasumigaura-Kaihatsu	Tonegawa	1995	25 km
Jajanboike	Kozogawa	Kozogawa	1985	58 km
Yamakura	Yamakura	Yamakuragawa	1964	82 km
Takatakiko	Takataki	Yorogawa	1990	91 km
Mizunuma	Mizunuma	Hanazonokawa	1966	95 km
Miyukiko	Gongendochosetsuchi	Nakagawa	1991	97 km

Nuclear plants

Name	Country	Reactors	Distance
TOKAI	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.
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