Overall Green Earthquake alert in Japan on 22 May 2018 20:11 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 May 2018 20:11 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:	152.91 Km
Lat/Lon:	41.217 , 140.399
Event Date:	22 May 2018 20:11 UTC 23 May 2018 05:11 Local
Exposed Population:	1410000 people within 100km
Source:	NEIC us1000ea4r
Inserted at:	22 May 2018 20:59 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
us1000ea4r	Scaled population (vector)	5.99
	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
1211613		0	22 May 2018 20:11	4.6M, 152.91km	N/A	1.4 million (in 100km)		00:48	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 Mimmaya, Tappi, Imabetsu, Kodomari, Tsunashirazu, Kotanishi, Jusan-ko, Imaizumi, Tairadate, Odai, and Matsubara.

Radius	Population
100 km	1.4 million people
75 km	1.2 million people
50 km	190000 people
20 km	10000 people
10 km	3800 people
5 km	1600 people
2 km	<1000 people

Affected Provinces

Region Province	Country	Population
Tohoku	Japan	10 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Mimmaya	Aomori	Japan	Village	-	4 km
Tappi	Aomori	Japan	Village	-	6 km
Imabetsu	Aomori	Japan	Village	-	9 km
Kodomari	Aomori	Japan	Village	-	13 km
Tsunashirazu	Aomori	Japan	Village	-	15 km
Kotanishi	Aomori	Japan	Village	-	19 km
Jusan-ko	Aomori	Japan	Village	-	21 km
Imaizumi	Aomori	Japan	Village	-	21 km
Tairadate	Aomori	Japan	Village	-	21 km
Odai	Aomori	Japan	Village	-	22 km
Funaoka	Aomori	Japan	Village	-	24 km
Oppetsu	Aomori	Japan	Village	-	26 km
Tomiyachi	Aomori	Japan	Village	-	28 km
Kanita	Aomori	Japan	Village	-	28 km
Araya	Hokkaido	Japan	Village	-	28 km
Nakasato	Aomori	Japan	Village	-	29 km
Shariki	Aomori	Japan	Village	-	30 km
Tamogi	Aomori	Japan	Village	-	30 km
Shimo Shariki	Aomori	Japan	Village	-	31 km
Ozawanai	Aomori	Japan	Village	-	31 km
Fukushima	Hokkaido	Japan	Village	-	32 km
Kawakura	Aomori	Japan	Village	-	32 km
Ushigata	Aomori	Japan	Village	-	32 km
Shimo-Ushigata	Aomori	Japan	Village	-	33 km
Gozawa	Aomori	Japan	Village	-	33 km
Shigeta	Aomori	Japan	Village	-	34 km
Hirataki	Aomori	Japan	Village	-	34 km
Matsumae	Hokkaido	Japan	Village	-	34 km
Amidagawa	Aomori	Japan	Village	-	35 km
Ushitaki	Aomori	Japan	Village	-	35 km
Dogizaka	Aomori	Japan	Village	-	36 km
Nagashima	Aomori	Japan	Village	-	36 km
Kanagi	Aomori	Japan	Village	-	36 km
Wakinosawa	Aomori	Japan	Village	-	36 km
Fukutomi	Aomori	Japan	Village	-	36 km
Kiraichi	Aomori	Japan	Village	-	37 km
Nakazawa	Aomori	Japan	Village	-	37 km
Tateoka	Aomori	Japan	Village	-	38 km
Saiga	Aomori	Japan	Village	-	38 km
Numazaki	Aomori	Japan	Village	-	38 km
Nakakashiwagi	Aomori	Japan	Village	-	39 km
Komotsuchi	Aomori	Japan	Village	-	39 km
Kobashi	Aomori	Japan	Village	-	39 km
Shimo-Mogawa	Aomori	Japan	Village	-	39 km
Uchimambe	Aomori	Japan	Village	-	40 km
Ishidate	Aomori	Japan	Village	-	40 km
Nakano-Shinden	Aomori	Japan	Village	-	41 km
Kanedate	Aomori	Japan	Village	-	41 km
Shiriuchi	Hokkaido	Japan	Village	-	41 km
Hayashi	Aomori	Japan	Village	-	42 km
Shimizu	Aomori	Japan	Village	-	42 km
Shukunobe	Aomori	Japan	Village	-	42 km
Maruyama	Aomori	Japan	Village	-	43 km
Okunai	Aomori	Japan	Village	-	43 km
Iizume	Aomori	Japan	Village	-	43 km
Shizuura	Hokkaido	Japan	Village	-	44 km
Natsuida	Aomori	Japan	Village	-	44 km
Tamamizu	Aomori	Japan	Village	-	45 km
Goshogahara	Aomori	Japan	Village	-	46 km
Yoshimi	Aomori	Japan	Village	-	46 km
Sai	Aomori	Japan	Village	-	46 km
Shibata	Aomori	Japan	Village	-	46 km
Kizukuri	Aomori	Japan	Village	19000 people	46 km
Nishitazawa	Aomori	Japan	Village	-	46 km
Koshimizu	Aomori	Japan	Village	-	46 km
Matsunoki	Aomori	Japan	Village	-	47 km
Fukuhara	Aomori	Japan	Village	-	47 km
Hirooka	Aomori	Japan	Village	-	48 km
Kuwanokida	Aomori	Japan	Village	-	48 km
Okamachi	Aomori	Japan	Village	-	48 km
Odate	Aomori	Japan	Village	-	48 km
Shinio	Aomori	Japan	Village	-	49 km
Nozato	Aomori	Japan	Village	-	49 km
Hata	Aomori	Japan	Village	-	49 km
Omaki	Aomori	Japan	Village	-	49 km
Mora	Aomori	Japan	Village	-	49 km
Aburakawa	Aomori	Japan	Village	-	49 km
Myodozaki	Aomori	Japan	Village	-	49 km
Kawajiri	Aomori	Japan	Village	-	49 km
Higashi-Tazawa	Aomori	Japan	Village	-	50 km
Nonaihata	Aomori	Japan	Village	-	50 km
Kikonai	Hokkaido	Japan	Village	-	50 km
Kawauchi	Aomori	Japan	Village	-	50 km
Maido	Aomori	Japan	Village	-	50 km
Tateishi	Aomori	Japan	Village	-	51 km
Ajigasawa	Aomori	Japan	City	-	51 km
Tsuruda	Aomori	Japan	Village	-	51 km
Kizutsu	Aomori	Japan	Village	-	51 km
Tsurugasaka	Aomori	Japan	Village	-	51 km
Tokoshinai	Aomori	Japan	Village	-	52 km
Yokoyachi	Aomori	Japan	Village	-	52 km
Hanokizawa	Aomori	Japan	Village	-	52 km
Futatsuya	Aomori	Japan	Village	-	52 km
Itayabori	Hokkaido	Japan	Village	-	52 km
Era	Hokkaido	Japan	Village	-	52 km
Suginosawa	Aomori	Japan	Village	-	53 km
Naka	Aomori	Japan	Village	-	53 km
Aomori	Aomori	Japan	Major city	300000 people	53 km
Yasula	Aomori	Japan	Village	-	53 km
Hadatsu	Aomori	Japan	Village	-	53 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
Aomori	AOJ	199	Civ.	Paved	Yes	8200	59 km
Hakodate	HKD	34	Civ.	Paved	Yes	9800	71 km
Misawa Naf	MSJ	36	Mil.	Paved	Yes	10000	100 km

Ports

Name	LOCODE	Country	Distance
Fukushima		Japan	29 km
Aomori	JPAOJ	Japan	53 km
Ohata		Japan	62 km
Ominato	JPOMT	Japan	66 km
Hakodate	JPHKD	Japan	68 km
Esasi Ko		Japan	75 km

Dams

Reservoir	Dam Name	River	Year	Distance
Odagawa	Odagawa	Odagawa	1975	38 km
Fudoko	Iizume	Iizumegawa	1972	43 km
Shinkodoroku	Shinkodoroku	Yamadagawa	1967	50 km
Namioka	Namioka	Kareizawagawa	1982	60 km
Tanosawatameike	Tanosawatameike	Shimizugawa	1942	61 km
Shimoyuheiseiko	Shimoyu	Tsutsumigawa	1988	67 km
Nijinoko	Asaseishigawa	Asaseishigawa	1988	73 km
Tenma	Tenma	Tsubokawa	1968	73 km
Kamiiso	Kamiiso	Hekirichigawa	1990	74 km
Fujinoko	Oana	Nishonaigawa	1933	75 km
Miyamako	Meya	Iwakigawa	1959	76 km
Yabetsu	Yabetsu	Shiodomari	1975	81 km
Hayaseno	Hayaseno	Nijigaigawa	1984	84 km
Chokeiko	Hayakuchi	Hayakuchigawa	1976	90 km
Komagatake	Komagatake	Shimazakigawa	1985	94 km
Subariko	Subari	Kasugegawa	1970	99 km
Shakaike	Shakaike	Midaregawa	1945	100 km

More information

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

Disclaimer
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