Overall Green Earthquake alert in Japan on 18 Feb 2018 10:01 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 18 Feb 2018 10:01 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:	106.59 Km
Lat/Lon:	37.1463 , 140.1669
Event Date:	18 Feb 2018 10:01 UTC 18 Feb 2018 19:01 Local
Exposed Population:	5060000 people within 100km
Source:	NEIC us2000d45b
Inserted at:	18 Feb 2018 10:27 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
us2000d45b	Scaled population (vector)	6.7
	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
1199519		0	18 Feb 2018 10:01	4.6M, 106.59km	N/A	5.1 million (in 100km)		00:25	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 Kumakura, Origuchihara, Habuto, Ichinomata, Oihara, Shirakawa, Kurokawa, Toyochi, Mushikasa, Tozura, and Mito.

Radius	Population
100 km	5 million people
75 km	3 million people
50 km	1.3 million people
20 km	170000 people
10 km	72000 people
5 km	42000 people
2 km	5800 people

Affected Provinces

Region Province	Country	Population
Tohoku	Japan	10 million people
Kanto	Japan	38.5 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Kumakura	Fukushima	Japan	Village	-	1 km
Origuchihara	Fukushima	Japan	Village	-	1 km
Habuto	Fukushima	Japan	Village	-	3 km
Ichinomata	Fukushima	Japan	Village	-	4 km
Oihara	Fukushima	Japan	Village	-	4 km
Shirakawa	Fukushima	Japan	Village	48000 people	5 km
Kurokawa	Fukushima	Japan	Village	-	5 km
Toyochi	Fukushima	Japan	Village	-	5 km
Mushikasa	Fukushima	Japan	Village	-	5 km
Tozura	Fukushima	Japan	Village	-	7 km
Kayane	Fukushima	Japan	Village	-	7 km
Manago	Fukushima	Japan	Village	-	8 km
Shirasaka	Fukushima	Japan	Village	-	8 km
Gokiarai	Fukushima	Japan	Village	-	8 km
Kumado	Fukushima	Japan	Village	-	9 km
Kotagawa	Fukushima	Japan	Village	-	9 km
Kashiwanuma	Tochigi	Japan	Village	-	9 km
Machiya	Fukushima	Japan	Village	-	9 km
Kitazowa	Tochigi	Japan	Village	-	10 km
Tokaichi	Fukushima	Japan	Village	-	10 km
Izumizaki	Fukushima	Japan	Village	-	11 km
Oitahara	Tochigi	Japan	Village	-	11 km
Hatajuku	Fukushima	Japan	Village	-	12 km
Shimoshingo	Fukushima	Japan	Village	-	12 km
Tajima	Fukushima	Japan	Village	-	12 km
Nakahara	Tochigi	Japan	Village	-	12 km
Shimo-Matsumoto	Fukushima	Japan	Village	-	12 km
Fumase	Fukushima	Japan	Village	-	12 km
Kyuraishi	Fukushima	Japan	Village	-	13 km
Yawata	Fukushima	Japan	Village	-	13 km
Kojima	Tochigi	Japan	Village	-	13 km
Makinouchi	Fukushima	Japan	Village	-	13 km
Banzawa	Fukushima	Japan	Village	-	13 km
Maginouchi	Fukushima	Japan	Village	-	14 km
Yasoji	Fukushima	Japan	Village	-	14 km
Kurodahara	Tochigi	Japan	Village	-	15 km
Ikeda	Tochigi	Japan	Village	-	15 km
Oiwake	Tochigi	Japan	Village	-	15 km
Nasu-Yumoto	Tochigi	Japan	Village	-	15 km
Iitoyo	Fukushima	Japan	Village	-	16 km
Yokooka	Tochigi	Japan	Village	-	16 km
Kanayama	Fukushima	Japan	Village	-	16 km
Inugami	Fukushima	Japan	Village	-	16 km
Kawarada	Fukushima	Japan	Village	-	17 km
Naganuma	Fukushima	Japan	Village	-	17 km
Yamanashi	Tochigi	Japan	Village	-	17 km
Kutsuishi	Tochigi	Japan	Village	-	17 km
Nakahata	Fukushima	Japan	Village	-	17 km
Kamanoko	Fukushima	Japan	Village	-	17 km
Shinden	Tochigi	Japan	Village	-	17 km
Kinosaki	Fukushima	Japan	Village	-	17 km
Kasaishi	Fukushima	Japan	Village	-	18 km
Odaira	Fukushima	Japan	Village	-	18 km
Minozawa	Tochigi	Japan	Village	-	19 km
Fukawado	Fukushima	Japan	Village	-	19 km
Ashino	Tochigi	Japan	Village	-	19 km
Matsugo	Tochigi	Japan	Village	-	19 km
Taki-Shinden	Fukushima	Japan	Village	-	19 km
Nishi-Iwazaki	Tochigi	Japan	Village	-	20 km
Matsuzuka	Fukushima	Japan	Village	-	20 km
Kitahara	Fukushima	Japan	Village	-	20 km
Muronuki	Fukushima	Japan	Village	-	20 km
Torinome	Tochigi	Japan	Village	-	20 km
Terago	Tochigi	Japan	Village	-	20 km
Tsutsumi	Fukushima	Japan	Village	-	20 km
Kand	Fukushima	Japan	Village	-	21 km
Owasu	Tochigi	Japan	Village	-	21 km
Sato-Moriya	Fukushima	Japan	Village	-	21 km
Iona	Tochigi	Japan	Village	-	21 km
Sanjome	Fukushima	Japan	Village	-	21 km
Sakasakawa	Fukushima	Japan	Village	-	21 km
Kuroiso	Tochigi	Japan	Village	60000 people	22 km
Sawai	Fukushima	Japan	Village	-	22 km
Tomioka	Fukushima	Japan	Village	-	22 km
Ome	Fukushima	Japan	Village	-	22 km
Nokiwa-Shinden	Fukushima	Japan	Village	-	22 km
Itamuro	Tochigi	Japan	Village	-	22 km
Karazawa	Fukushima	Japan	Village	-	23 km
Wagu	Fukushima	Japan	Village	-	23 km
Fukunda	Fukushima	Japan	Village	-	23 km
Ryogo	Tochigi	Japan	Village	-	23 km
Odaka	Fukushima	Japan	Village	-	23 km
Anasawa	Tochigi	Japan	Village	-	23 km
Shiozawa	Tochigi	Japan	Village	-	23 km
Sakitama	Tochigi	Japan	Village	-	23 km
Satoshiraishi	Fukushima	Japan	Village	-	23 km
Nabekake	Tochigi	Japan	Village	-	23 km
Tategaoka	Fukushima	Japan	Village	-	23 km
Tanagura	Fukushima	Japan	Village	-	23 km
Tsuchibashi	Fukushima	Japan	Village	-	24 km
Asakawa	Fukushima	Japan	Village	-	24 km
Kita-Yamamota	Fukushima	Japan	Village	-	24 km
Momuro	Tochigi	Japan	Village	-	24 km
Niida	Fukushima	Japan	Village	-	25 km
Zone	Fukushima	Japan	Village	-	25 km
Yatsubo	Tochigi	Japan	Village	-	25 km
Banyu-Shinden	Fukushima	Japan	Village	-	25 km
Nakanouchi	Tochigi	Japan	Village	-	25 km
O-Matsukawa	Fukushima	Japan	Village	-	26 km
Ishikawa	Fukushima	Japan	Village	18000 people	26 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
Fukushima	FKS	372	Civ.	Paved	Yes	8200	25 km
Otawara		201				0	33 km
Utsunomiya	QUT	102	Civ.	Paved	Yes	5500	75 km
Suzumenomiya		82				0	79 km

Ports

Name	LOCODE	Country	Distance
Onahama	JPONA	Japan	70 km
Hitachi	JPHTC	Japan	83 km

Dams

Reservoir	Dam Name	River	Year	Distance
Hatoriko	Hatori	Tsurunumagawa	1955	16 km
Fujinumachosuichi	Fujimuna	Ebanagawa	1948	17 km
Miyamako	Miyama	Nakagawa	1973	24 km
Fukadachoseichi	Fukadachoseichi	Tadanogawa	1982	28 km
Bobatako	Sengozawa	Kitasugawa	1974	29 km
Sabigawa	Sabigawa	Sabigawa	1994	31 km
Wakasatoko	Okawa	Agagawa	1987	32 km
Shiobara	Shiobara	Hokigawa	1978	33 km
Ouchi	Ouchi	Onogawa	1991	34 km
Yoshigadaira	Yoshigadaira	Harakawa	1970	36 km
Yunoiriko	Higashiyama	Yugawa	1982	39 km
Terayama	Terayama	Miyakawa	1984	43 km
Higashikoyako	Nishiarakawa	Nishiarakawa	1967	49 km
Ikariko	Ikari	Ojikagawa	1956	49 km
Yashioko	Kawaji	Kunugawa	1983	50 km
Takashibako	Takashiba	Samekawa	1961	54 km
Shitokiko	Shitoki	Shitokigawa	1983	56 km
Mizunuma	Mizunuma	Hanazonokawa	1966	56 km
Kuriyamachoseichi	Kuriyama	Nebesawagawa	1988	56 km
Imaichichoseichi	Imaichi	Togawa	1988	57 km
Kurobe	Kurobe	Kinugawa	1912	58 km
Sekishiba	Sekishiba	Ubadogawa	1958	63 km
Kawamatako	Kawamata	Kinugawa	1966	65 km
Nicchuhizawako	Nicchu	Oshikirigawa	1991	71 km
Sakashita	Sakashita	Okawaragawa	1973	74 km
Chuzenjiko	Chuzenji	Daiyagawa	1998	75 km
Ogaki	Ogaki	Ukedogawa	1985	76 km
Otsumata	Otsumata	Otsumatagawa	1968	78 km
Tadamiko	Tadami	Tadamigawa	1989	80 km
Houjonoumi	Mizukubo	Kariyasugawa	1971	80 km
Tagokurako	Tagokura	Tadamigawa	1959	80 km
Ginzanko	Okutadami	Tadamigawa	1960	81 km
Marunumako	Marunuma	Otakigawa	1931	82 km
Yokokawa	Yokokawa	Otagawa	1983	82 km
Jajanboike	Kozogawa	Kozogawa	1985	83 km
Takanokura	Takanokura	Mizunashigawa	1975	83 km
Tamanotameike	Tamano	Udagawa	1945	86 km
Aburumagawa	Aburumagawa	Aburumagawa	1986	92 km
Kuromatagawadaini	Kuromatagawadaini	Kuromatagawa	1964	94 km
Kajigawa	Kajigawachisui	Kajigawa	1974	95 km
			1991	96 km
Kasaboriko	Kasabori	Kasaborigawa	1964	97 km
Kuromatagawadaiichi	Kuromatagawadaiichi	Kuromatagawa	1958	97 km
Kusakiko	Kusaki	Watarasegawa	1976	97 km
Himesayuriko	Otani	Igarashigawa	1993	98 km
Birusawako	Birusawatameike	Yashirogawa	1948	99 km

Nuclear plants

Name	Country	Reactors	Distance
FUKUSHIMA-DAINI	JAPAN	4	79 km
FUKUSHIMA-DAIICHI	JAPAN	6	82 km
TOKAI	JAPAN	3	86 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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