Overall Green Earthquake alert in Japan on 10 Aug 2015 09:44 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 10 Aug 2015 09:44 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:	44.38 Km
Lat/Lon:	36.0816 , 139.875
Event Date:	10 Aug 2015 09:44 UTC 10 Aug 2015 18:44 Local
Exposed Population:	40400760 people within 100km
Source:	NEIC
Inserted at:	10 Aug 2015 21:42 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
1091666		0	10 Aug 2015 09:44	4.6M, 44.38km	N/A	40.4 million (in 100km)		11:57	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 Oigo, Matate, Kutsukake, Saheita-Shinden, Sakai, Oyama, Hoshubana, Sekiyado, Hiratsuka, Ishige, and Maebashi.

Radius	Population
100 km	41.3 million people
75 km	34.5 million people
50 km	19.5 million people
20 km	1.4 million people
10 km	160000 people
5 km	36000 people
2 km	5200 people

Affected Provinces

Region Province	Country	Population
Kanto	Japan	38.5 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Oigo	Ibaraki	Japan	Village	-	2 km
Matate	Ibaraki	Japan	Village	-	3 km
Kutsukake	Ibaraki	Japan	Village	-	5 km
Saheita-Shinden	Ibaraki	Japan	Village	-	6 km
Sakai	Ibaraki	Japan	Village	26000 people	7 km
Oyama	Ibaraki	Japan	Village	-	7 km
Hoshubana	Chiba	Japan	Village	-	7 km
Sekiyado	Chiba	Japan	Village	30000 people	8 km
Hiratsuka	Ibaraki	Japan	Village	-	8 km
Ishige	Ibaraki	Japan	Village	25000 people	9 km
Hojubana	Saitama	Japan	Village	-	9 km
Numakage	Ibaraki	Japan	Village	-	10 km
Onna	Ibaraki	Japan	Village	-	10 km
Goka	Ibaraki	Japan	Village	-	10 km
Tsukazaki	Ibaraki	Japan	Village	-	10 km
Toshima	Saitama	Japan	Village	-	12 km
Zodo	Ibaraki	Japan	Village	-	12 km
Suginoya	Ibaraki	Japan	Village	-	12 km
Nire	Ibaraki	Japan	Village	-	13 km
Doyobu	Ibaraki	Japan	Village	-	13 km
Kamigo	Ibaraki	Japan	Village	-	13 km
Narita-Shinden	Ibaraki	Japan	Village	-	13 km
Shimana	Ibaraki	Japan	Village	-	13 km
Shimotsuma	Ibaraki	Japan	Village	37000 people	14 km
Morokawa	Ibaraki	Japan	Village	-	14 km
Kami-Naganuma	Ibaraki	Japan	Village	-	15 km
Noda	Chiba	Japan	City	120000 people	15 km
Yoshinuma	Ibaraki	Japan	Village	-	15 km
Shinjuku-Shinden	Ibaraki	Japan	Village	-	15 km
Kami-Wada	Ibaraki	Japan	Village	-	16 km
Kurokoma	Ibaraki	Japan	Village	-	16 km
Kurihashi	Saitama	Japan	Village	28000 people	17 km
Kozutsumi	Ibaraki	Japan	Village	-	17 km
Takasai	Ibaraki	Japan	Village	-	17 km
Obari	Ibaraki	Japan	Village	-	18 km
Emura	Ibaraki	Japan	Village	-	18 km
Kuki	Saitama	Japan	Village	72000 people	18 km
Takei	Ibaraki	Japan	Village	-	19 km
Wakayagi	Ibaraki	Japan	Village	-	19 km
Yatabe	Ibaraki	Japan	Village	-	19 km
Sekimoto	Ibaraki	Japan	Village	-	19 km
Koga	Ibaraki	Japan	City	57000 people	19 km
Minami-Izumi	Tochigi	Japan	Village	-	20 km
Uruido	Saitama	Japan	Village	-	20 km
Ozone	Ibaraki	Japan	Village	-	21 km
Horage	Ibaraki	Japan	Village	-	21 km
Honden	Saitama	Japan	Village	-	21 km
Kita-Hirano	Saitama	Japan	Village	-	21 km
Hinokuchi	Saitama	Japan	Village	-	21 km
Kurogo	Ibaraki	Japan	Village	-	21 km
Nogi	Tochigi	Japan	Village	27000 people	21 km
Kami-Hirooka	Ibaraki	Japan	Village	-	21 km
Sakunoya	Ibaraki	Japan	Village	-	21 km
Yoshikawa	Saitama	Japan	Village	60000 people	22 km
Hinosawa	Ibaraki	Japan	Village	-	22 km
Hojo	Ibaraki	Japan	Village	-	22 km
Kanokubo	Ibaraki	Japan	Village	-	22 km
Sairaoka	Saitama	Japan	Village	-	22 km
Higashi-Hozui	Ibaraki	Japan	Village	-	22 km
Mamada	Tochigi	Japan	Village	-	23 km
Shimo-Nodono	Ibaraki	Japan	Village	-	23 km
Oda	Ibaraki	Japan	Village	-	23 km
Washimiya	Saitama	Japan	Village	34000 people	23 km
Amagaya	Tochigi	Japan	Village	-	23 km
Kami-Oshima	Ibaraki	Japan	Village	-	24 km
Ebigashima	Ibaraki	Japan	Village	-	24 km
Kami-Namai	Tochigi	Japan	Village	-	24 km
Sakura	Ibaraki	Japan	Village	-	24 km
Konosu	Saitama	Japan	Village	82000 people	24 km
Yagyu	Saitama	Japan	Village	-	24 km
Shobu	Saitama	Japan	Village	-	25 km
Omuro	Saitama	Japan	Village	-	25 km
Fujishiro	Ibaraki	Japan	Village	33000 people	25 km
Tsukuba	Ibaraki	Japan	City	180000 people	25 km
Fujisawa	Ibaraki	Japan	Village	-	26 km
Oyama	Tochigi	Japan	City	150000 people	26 km
Sawabe	Ibaraki	Japan	Village	-	26 km
Arakawa-Oki	Ibaraki	Japan	Village	-	27 km
Kobari-Shinjika	Saitama	Japan	Village	-	27 km
Shimodate	Ibaraki	Japan	City	63000 people	27 km
Ushiku	Ibaraki	Japan	Village	79000 people	27 km
Hirunuma	Tochigi	Japan	Village	-	27 km
Goshonomiya	Tochigi	Japan	Village	-	27 km
Mitagaya	Saitama	Japan	Village	-	27 km
Abiko	Chiba	Japan	City	130000 people	27 km
Kishai	Saitama	Japan	Village	-	27 km
Itakura	Gunma	Japan	Village	-	28 km
Busshoji	Ibaraki	Japan	Village	-	28 km
Fujioka	Tochigi	Japan	Village	18000 people	28 km
Togawa	Saitama	Japan	Village	-	28 km
Nakadate	Ibaraki	Japan	Village	-	29 km
Shimo-Ezure	Ibaraki	Japan	Village	-	29 km
Hongo	Ibaraki	Japan	Village	-	29 km
Mizukake	Tochigi	Japan	Village	-	29 km
Ikku	Ibaraki	Japan	Village	-	29 km
Okizawa	Tochigi	Japan	Village	-	29 km
Jikkoku	Ibaraki	Japan	Village	-	29 km
Minami-Obayashi	Tochigi	Japan	Village	-	29 km
Omiya	Saitama	Japan	City	440000 people	29 km
Kadoi	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	10 km
		26				0	29 km
Shimofusa		30	Civ.	Paved	Yes	7300	34 km
Honda		12				0	34 km
Ryugasaki		2				0	38 km
Onishi		20				0	39 km
Ryugasaki South		2				0	40 km
Suzumenomiya		82				0	44 km
Shimo Kolzumi		30				0	48 km
Utsunomiya	QUT	102	Civ.	Paved	Yes	5500	48 km
Iruma		91	Mil.	Paved	Yes	6500	50 km
Hyakuri		32	Mil.	Paved	Yes	8800	50 km
Shimoshizu		30				0	54 km
Chofu		41	Civ.	Paved	No	3200	55 km
Tokyo Narita International	NRT	42	Civ.	Paved	Yes	13100	58 km
Tokyo Haneda International	HND	7	Civ.	Paved	Yes	9800	59 km
Tachikawa		95				0	60 km
Yokota AFB	OKO	139	Mil.	Paved	Yes	11000	60 km
Yokohama	YOK	unknown				0	72 km
Kisarazu		3	Mil.	Paved	Yes	6000	76 km
Katsner AAF		109	Civ.	Paved	No	1900	77 km
Atsugi	NJA	62	Mil.	Paved	Yes	7900	79 km
Otawara		201				0	88 km

Ports

Name	LOCODE	Country	Distance
Tokyo	JPTYO	Japan	42 km
Ogasawara	JPOGA	Japan	45 km
Katunan Ko		Japan	46 km
Anegasaki	JPANE	Japan	57 km
Chiba	JPCHB	Japan	58 km
Kawasaki	JPKWS	Japan	62 km
Goi	JPGOI	Japan	64 km
Yokohama	JPYOK	Japan	73 km
Kashima	JPKSM	Japan	77 km
Kisarazu	JPKZU	Japan	77 km
Neghisi	JPNGI	Japan	79 km
Hitachi	JPHTC	Japan	82 km
Yokosuka	JPYOS	Japan	91 km
Choshi	JPCHO	Japan	94 km
Kurihama	JPKRH	Japan	98 km

Dams

Reservoir	Dam Name	River	Year	Distance
Miyukiko	Gongendochosetsuchi	Nakagawa	1991	15 km
Yanakako	Wataraseyusuichi	Watarasegawa	1989	22 km
Tamako	Murayamashimo	Tamagawa	2008	53 km
Sayamako	Yamaguchi	Tamagawa	2002	54 km
Miyazawako	Miyazawatameike	Koazegawa	1941	54 km
Tamako	Murayamakami	Tamagawa	1924	54 km
Kasumigaura	Kasumigaura-Kaihatsu	Tonegawa	1995	59 km
Jajanboike	Kozogawa	Kozogawa	1985	60 km
Naguriko	Arima	Arimagawa	1985	67 km
Kusakiko	Kusaki	Watarasegawa	1976	68 km
Yamakura	Yamakura	Yamakuragawa	1964	70 km
Tsukuiko	Shiroyama	Sagamigawa	1964	77 km
Kannako	Shimokubo	Kannagawa	1968	77 km
Sagamiko	Sagami	Sagamigawa	1947	80 km
Chuzenjiko	Chuzenji	Daiyagawa	1998	80 km
Okutamako	Ogohchi	Tamagawa	1957	81 km
Higashikoyako	Nishiarakawa	Nishiarakawa	1967	82 km
Miyagaseko	Miyagase	Nakatsugawa	2001	82 km
Takatakiko	Takataki	Yorogawa	1990	84 km
Imaichichoseichi	Imaichi	Togawa	1988	85 km
Terayama	Terayama	Miyakawa	1984	85 km
Makabechoseichi	Makabe	Tonegawa	1928	87 km
Kori	Kori	Korigawa	1972	87 km
Kuriyamachoseichi	Kuriyama	Nebesawagawa	1988	88 km
Sonoharako	Sonohara	Katashinagawa	1965	88 km
Chichibuko	Futase	Arakawa	1961	89 km
Ono	Ono	Yatagawa	1914	90 km
Kurobe	Kurobe	Kinugawa	1912	91 km
Narusawako	Narusawa	Harunashirakawa	1950	91 km
Oshioko	Oshio	Nanmokugawa	1968	91 km
Yashioko	Kawaji	Kunugawa	1983	92 km
Ikariko	Ikari	Ojikagawa	1956	92 km
Kawamatako	Kawamata	Kinugawa	1966	94 km
Marunumako	Marunuma	Otakigawa	1931	95 km
Nyuko	Nyu	Nyukawa	1952	96 km
Kameyamako	Kameyama	Obitsugawa	1980	96 km
Shiobara	Shiobara	Hokigawa	1978	97 km

Nuclear plants

Name	Country	Reactors	Distance
TOKAI	JAPAN	3	78 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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