Overall Green Earthquake alert in Japan on 17 Apr 2014 22:53 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 4.8 in Japan on 17 Apr 2014 22:53 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:	4.8M
Depth:	52.6 Km
Lat/Lon:	36.1069 , 139.9349
Event Date:	17 Apr 2014 22:53 UTC 18 Apr 2014 07:53 Local
Exposed Population:	39921600 people within 100km
Source:	NEIC
Inserted at:	17 Apr 2014 23:22 UTC

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
NEIC	0.2		0.2
	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
1047279		0.2	17 Apr 2014 22:53	4.8M, 52.6km	N/A	39.9 million (in 100km)		00:29	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 Kutsukake, Saheita-Shinden, Ishige, Matate, Goka, Zodo, Oigo, Kamigo, Hiratsuka, Shimotsuma, and Maebashi.

Radius	Population
100 km	40.9 million people
75 km	32.7 million people
50 km	16.8 million people
20 km	880000 people
10 km	150000 people
5 km	34000 people
2 km	4900 people

Affected Provinces

Region Province	Country	Population
Kanto	Japan	38.5 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Kutsukake	Ibaraki	Japan	Village	-	2 km
Saheita-Shinden	Ibaraki	Japan	Village	-	2 km
Ishige	Ibaraki	Japan	Village	25000 people	2 km
Matate	Ibaraki	Japan	Village	-	5 km
Goka	Ibaraki	Japan	Village	-	6 km
Zodo	Ibaraki	Japan	Village	-	6 km
Oigo	Ibaraki	Japan	Village	-	7 km
Kamigo	Ibaraki	Japan	Village	-	7 km
Hiratsuka	Ibaraki	Japan	Village	-	8 km
Shimotsuma	Ibaraki	Japan	Village	37000 people	9 km
Shimana	Ibaraki	Japan	Village	-	9 km
Yoshinuma	Ibaraki	Japan	Village	-	9 km
Suginoya	Ibaraki	Japan	Village	-	10 km
Onna	Ibaraki	Japan	Village	-	10 km
Oyama	Ibaraki	Japan	Village	-	11 km
Numakage	Ibaraki	Japan	Village	-	11 km
Takasai	Ibaraki	Japan	Village	-	12 km
Sakai	Ibaraki	Japan	Village	26000 people	12 km
Narita-Shinden	Ibaraki	Japan	Village	-	12 km
Kurokoma	Ibaraki	Japan	Village	-	13 km
Kami-Naganuma	Ibaraki	Japan	Village	-	13 km
Hoshubana	Chiba	Japan	Village	-	13 km
Sekiyado	Chiba	Japan	Village	30000 people	13 km
Nire	Ibaraki	Japan	Village	-	14 km
Wakayagi	Ibaraki	Japan	Village	-	14 km
Emura	Ibaraki	Japan	Village	-	14 km
Shinjuku-Shinden	Ibaraki	Japan	Village	-	14 km
Tsukazaki	Ibaraki	Japan	Village	-	14 km
Hojubana	Saitama	Japan	Village	-	15 km
Ozone	Ibaraki	Japan	Village	-	15 km
Horage	Ibaraki	Japan	Village	-	15 km
Morokawa	Ibaraki	Japan	Village	-	15 km
Yatabe	Ibaraki	Japan	Village	-	15 km
Hojo	Ibaraki	Japan	Village	-	16 km
Sekimoto	Ibaraki	Japan	Village	-	16 km
Kurogo	Ibaraki	Japan	Village	-	16 km
Kami-Hirooka	Ibaraki	Japan	Village	-	16 km
Obari	Ibaraki	Japan	Village	-	17 km
Kami-Wada	Ibaraki	Japan	Village	-	17 km
Oda	Ibaraki	Japan	Village	-	17 km
Higashi-Hozui	Ibaraki	Japan	Village	-	17 km
Toshima	Saitama	Japan	Village	-	18 km
Kami-Oshima	Ibaraki	Japan	Village	-	18 km
Takei	Ibaraki	Japan	Village	-	18 km
Hinosawa	Ibaraki	Japan	Village	-	18 km
Doyobu	Ibaraki	Japan	Village	-	18 km
Ebigashima	Ibaraki	Japan	Village	-	18 km
Sakura	Ibaraki	Japan	Village	-	18 km
Noda	Chiba	Japan	City	120000 people	19 km
Shimo-Nodono	Ibaraki	Japan	Village	-	19 km
Kozutsumi	Ibaraki	Japan	Village	-	19 km
Tsukuba	Ibaraki	Japan	City	180000 people	19 km
Kanokubo	Ibaraki	Japan	Village	-	20 km
Minami-Izumi	Tochigi	Japan	Village	-	20 km
Sakunoya	Ibaraki	Japan	Village	-	20 km
Fujisawa	Ibaraki	Japan	Village	-	20 km
Sawabe	Ibaraki	Japan	Village	-	21 km
Kurihashi	Saitama	Japan	Village	28000 people	21 km
Busshoji	Ibaraki	Japan	Village	-	22 km
Arakawa-Oki	Ibaraki	Japan	Village	-	22 km
Koga	Ibaraki	Japan	City	57000 people	22 km
Amagaya	Tochigi	Japan	Village	-	22 km
Shimodate	Ibaraki	Japan	City	63000 people	22 km
Hongo	Ibaraki	Japan	Village	-	23 km
Mamada	Tochigi	Japan	Village	-	23 km
Nogi	Tochigi	Japan	Village	27000 people	23 km
Fujishiro	Ibaraki	Japan	Village	33000 people	24 km
Kuki	Saitama	Japan	Village	72000 people	24 km
Ushiku	Ibaraki	Japan	Village	79000 people	24 km
Obata	Ibaraki	Japan	Village	-	24 km
Goshonomiya	Tochigi	Japan	Village	-	24 km
Honden	Saitama	Japan	Village	-	24 km
Washijuku	Ibaraki	Japan	Village	-	24 km
Kadoi	Ibaraki	Japan	Village	-	25 km
Ikku	Ibaraki	Japan	Village	-	25 km
Nakanuki	Ibaraki	Japan	Village	-	25 km
Nakadate	Ibaraki	Japan	Village	-	25 km
Jikkoku	Ibaraki	Japan	Village	-	25 km
Kita-Hirano	Saitama	Japan	Village	-	25 km
Kami-Namai	Tochigi	Japan	Village	-	26 km
Oyama	Tochigi	Japan	City	150000 people	26 km
Shimo-Ezure	Ibaraki	Japan	Village	-	26 km
Yoshikawa	Saitama	Japan	Village	60000 people	26 km
Wakaguri	Ibaraki	Japan	Village	-	26 km
Uwaso	Ibaraki	Japan	Village	-	26 km
Uruido	Saitama	Japan	Village	-	26 km
Hinokuchi	Saitama	Japan	Village	-	27 km
Nobushimo	Tochigi	Japan	Village	-	27 km
Abiko	Chiba	Japan	City	130000 people	27 km
Kakioka	Ibaraki	Japan	Village	-	27 km
Kawamata	Ibaraki	Japan	Village	-	28 km
Yagyu	Saitama	Japan	Village	-	28 km
Hirunuma	Tochigi	Japan	Village	-	28 km
Sairaoka	Saitama	Japan	Village	-	28 km
Washimiya	Saitama	Japan	Village	34000 people	28 km
Naka-Shizuku	Ibaraki	Japan	Village	-	29 km
Tsuchida	Ibaraki	Japan	Village	-	29 km
Okizawa	Tochigi	Japan	Village	-	29 km
Motogi	Ibaraki	Japan	Village	-	29 km
Okuda	Ibaraki	Japan	Village	-	29 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
Chiba-ken		19				0	16 km
		26				0	25 km
Shimofusa		30	Civ.	Paved	Yes	7300	35 km
Ryugasaki		2				0	35 km
Ryugasaki South		2				0	38 km
Honda		12				0	40 km
Suzumenomiya		82				0	41 km
Onishi		20				0	43 km
Hyakuri		32	Mil.	Paved	Yes	8800	44 km
Utsunomiya	QUT	102	Civ.	Paved	Yes	5500	46 km
Shimo Kolzumi		30				0	51 km
Shimoshizu		30				0	54 km
Tokyo Narita International	NRT	42	Civ.	Paved	Yes	13100	56 km
Iruma		91	Mil.	Paved	Yes	6500	56 km
Chofu		41	Civ.	Paved	No	3200	61 km
Tokyo Haneda International	HND	7	Civ.	Paved	Yes	9800	63 km
Tachikawa		95				0	66 km
Yokota AFB	OKO	139	Mil.	Paved	Yes	11000	66 km
Yokohama	YOK	unknown				0	76 km
Kisarazu		3	Mil.	Paved	Yes	6000	78 km
Katsner AAF		109	Civ.	Paved	No	1900	82 km
Otawara		201				0	84 km
Atsugi	NJA	62	Mil.	Paved	Yes	7900	85 km

Ports

Name	LOCODE	Country	Distance
Tokyo	JPTYO	Japan	46 km
Katunan Ko		Japan	48 km
Ogasawara	JPOGA	Japan	49 km
Anegasaki	JPANE	Japan	58 km
Chiba	JPCHB	Japan	59 km
Goi	JPGOI	Japan	66 km
Kawasaki	JPKWS	Japan	66 km
Kashima	JPKSM	Japan	72 km
Hitachi	JPHTC	Japan	76 km
Yokohama	JPYOK	Japan	77 km
Kisarazu	JPKZU	Japan	80 km
Neghisi	JPNGI	Japan	83 km
Choshi	JPCHO	Japan	91 km
Yokosuka	JPYOS	Japan	95 km

Dams

Reservoir	Dam Name	River	Year	Distance
Miyukiko	Gongendochosetsuchi	Nakagawa	1991	20 km
Yanakako	Wataraseyusuichi	Watarasegawa	1989	25 km
Jajanboike	Kozogawa	Kozogawa	1985	54 km
Kasumigaura	Kasumigaura-Kaihatsu	Tonegawa	1995	54 km
Tamako	Murayamashimo	Tamagawa	2008	59 km
Sayamako	Yamaguchi	Tamagawa	2002	60 km
Tamako	Murayamakami	Tamagawa	1924	60 km
Miyazawako	Miyazawatameike	Koazegawa	1941	60 km
Kusakiko	Kusaki	Watarasegawa	1976	70 km
Yamakura	Yamakura	Yamakuragawa	1964	71 km
Naguriko	Arima	Arimagawa	1985	73 km
Higashikoyako	Nishiarakawa	Nishiarakawa	1967	80 km
Chuzenjiko	Chuzenji	Daiyagawa	1998	80 km
Tsukuiko	Shiroyama	Sagamigawa	1964	82 km
Terayama	Terayama	Miyakawa	1984	83 km
Kannako	Shimokubo	Kannagawa	1968	83 km
Imaichichoseichi	Imaichi	Togawa	1988	84 km
Takatakiko	Takataki	Yorogawa	1990	85 km
Sagamiko	Sagami	Sagamigawa	1947	86 km
Kuriyamachoseichi	Kuriyama	Nebesawagawa	1988	87 km
Okutamako	Ogohchi	Tamagawa	1957	87 km
Miyagaseko	Miyagase	Nakatsugawa	2001	88 km
Kurobe	Kurobe	Kinugawa	1912	89 km
Kori	Kori	Korigawa	1972	90 km
Makabechoseichi	Makabe	Tonegawa	1928	90 km
Sonoharako	Sonohara	Katashinagawa	1965	90 km
Yashioko	Kawaji	Kunugawa	1983	91 km
Ikariko	Ikari	Ojikagawa	1956	91 km
Kawamatako	Kawamata	Kinugawa	1966	94 km
Shiobara	Shiobara	Hokigawa	1978	94 km
Narusawako	Narusawa	Harunashirakawa	1950	95 km
Chichibuko	Futase	Arakawa	1961	95 km
Marunumako	Marunuma	Otakigawa	1931	96 km
Ono	Ono	Yatagawa	1914	96 km
Oshioko	Oshio	Nanmokugawa	1968	96 km
Kameyamako	Kameyama	Obitsugawa	1980	98 km
Sabigawa	Sabigawa	Sabigawa	1994	99 km

Nuclear plants

Name	Country	Reactors	Distance
TOKAI	JAPAN	3	72 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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