Overall Green Earthquake alert in Japan on 23 Jun 2024 13:54 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 4.5 in Japan on 23 Jun 2024 13:54 UTC

Hazard models

Rapid Impact

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:	4.5M
Depth:	70.4 Km
Lat/Lon:	35.5696 , 139.9751
Event Date:	23 Jun 2024 13:54 UTC 23 Jun 2024 22:54 Local
Exposed Population:	14.1 million in MMI IV
Source:	NEIC us7000mu4d
Inserted at:	23 Jun 2024 15:36 UTC
INFORM Coping capacity of the alert score	1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Rapid Impact)		GDACS score
NEIC	0		0
us7000mu4d	Scaled population (vector)	0
	C1 rapid impact	0
	C2 rapid impact	0
	Country Vulnerability	0
	INFORM_normalised	0

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1578341		0	23 Jun 2024 13:54	4.5M, 70.4km	3.64	14.1 million (in 100km)		01:42	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 6,610,257) . The nearest places are Goi, Anegasaki, Chiba, Funabashi, Ichikawa, Tokyo, Kisarazu, Kamagaya, Matsudo, Golanda, and Mito.

Radius	Population
100 km	39.6 million people
75 km	36.5 million people
50 km	27.6 million people
20 km	3.8 million people
10 km	98000 people
5 km	no people
2 km	no people

Affected Provinces

Region Province	Country	Population
Kanto	Japan	6.6 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Goi	Chiba	Japan	Village	-	11 km
Anegasaki	Chiba	Japan	Village	-	13 km
Chiba	Chiba	Japan	Major city	920000 people	14 km
Funabashi	Chiba	Japan	City	560000 people	14 km
Ichikawa	Chiba	Japan	City	460000 people	17 km
Tokyo	Tokyo	Japan	Capital	8.1 million people	18 km
Kisarazu	Chiba	Japan	City	120000 people	21 km
Kamagaya	Chiba	Japan	City	110000 people	21 km
Matsudo	Chiba	Japan	City	460000 people	23 km
Golanda	Tokyo	Japan	Village	-	24 km
Ushiku	Chiba	Japan	Village	-	25 km
Kawasaki	Kanagawa	Japan	Major city	1.3 million people	25 km
Kimitsu	Chiba	Japan	Village	92000 people	28 km
Sakura	Chiba	Japan	City	180000 people	29 km
Chiba-nyutaun	Chiba	Japan	Village	-	30 km
Chonan	Chiba	Japan	Village	-	31 km
Oami	Chiba	Japan	Village	-	31 km
Omori	Chiba	Japan	Village	-	32 km
Futtso	Chiba	Japan	Village	-	32 km
Kururi	Chiba	Japan	Village	-	32 km
Asagaya	Tokyo	Japan	Village	-	33 km
Mobara	Chiba	Japan	City	96000 people	34 km
Yokohama	Kanagawa	Japan	Major city	3.6 million people	34 km
Abiko	Chiba	Japan	City	130000 people	34 km
Fukawa	Ibaraki	Japan	Village	-	36 km
Togane	Chiba	Japan	Village	55000 people	37 km
Yoshikawa	Saitama	Japan	Village	60000 people	37 km
Kami-aoki	Saitama	Japan	Village	-	37 km
Naruto	Chiba	Japan	City	22000 people	39 km
Ryugasaki	Chiba	Japan	Village	85000 people	39 km
Chofu	Tokyo	Japan	City	200000 people	40 km
Fujioayashi	Chiba	Japan	Village	-	40 km
Minato	Chiba	Japan	Village	-	40 km
Narita	Chiba	Japan	City	100000 people	41 km
Fujishiro	Ibaraki	Japan	Village	33000 people	42 km
Ichinomiya	Chiba	Japan	Village	-	42 km
Ryugaski	Ibaraki	Japan	Village	-	42 km
Noda	Chiba	Japan	City	120000 people	43 km
Katayama	Saitama	Japan	Village	-	43 km
Katakai	Chiba	Japan	City	-	43 km
Yokosuka	Kanagawa	Japan	City	420000 people	44 km
Kanioshioacho	Kanagawa	Japan	Village	-	45 km
Tsotuma K	Tokyo	Japan	Village	-	45 km
Obari	Ibaraki	Japan	Village	-	45 km
Minami Yamato	Kanagawa	Japan	Village	-	46 km
Hikago	Kanagawa	Japan	Village	-	46 km
Namegawa	Chiba	Japan	Village	-	46 km
Ushiku	Ibaraki	Japan	Village	79000 people	46 km
Hasunuma	Chiba	Japan	Village	-	46 km
Bessho	Kanagawa	Japan	Village	-	47 km
Okura	Tokyo	Japan	Village	-	47 km
Yokoshiba	Chiba	Japan	Village	-	47 km
Kamakura	Kanagawa	Japan	City	160000 people	47 km
Ochikawa	Tokyo	Japan	Village	-	47 km
Naka-Wada	Kanagawa	Japan	Village	-	47 km
Sagami Ono	Kanagawa	Japan	Village	-	48 km
Kodaira	Tokyo	Japan	City	190000 people	48 km
Ino	Chiba	Japan	Village	-	48 km
Kokubunai	Tokyo	Japan	Village	-	48 km
Shimo-Yabe	Tokyo	Japan	Village	-	48 km
Kobata	Chiba	Japan	Village	-	48 km
Tako	Chiba	Japan	City	-	48 km
Chogo	Kanagawa	Japan	Village	-	49 km
Kami-Naganuma	Ibaraki	Japan	Village	-	49 km
Yabuhana	Kanagawa	Japan	Village	-	49 km
Nozuta	Tokyo	Japan	Village	-	49 km
Namigi	Tokyo	Japan	Village	-	50 km
Omiya	Saitama	Japan	City	440000 people	50 km
Hayama	Kanagawa	Japan	Village	31000 people	50 km
Renkoji	Tokyo	Japan	Village	-	50 km
Oyama	Ibaraki	Japan	Village	-	50 km
Tsuruma	Saitama	Japan	Village	-	50 km
Higashi-Murayama	Tokyo	Japan	Village	-	51 km
Fukaya	Kanagawa	Japan	Village	-	51 km
Ochiai	Kanagawa	Japan	Village	-	51 km
Hinosawa	Ibaraki	Japan	Village	-	51 km
Nishi-Tsuruma	Kanagawa	Japan	Village	-	51 km
Jikkoku	Ibaraki	Japan	Village	-	51 km
Takahate	Tokyo	Japan	Village	-	51 km
Yatabe	Ibaraki	Japan	Village	-	51 km
Rokujzo	Kanagawa	Japan	Village	-	52 km
Fuchinobe	Kanagawa	Japan	Village	-	52 km
Tachikawa	Tokyo	Japan	City	170000 people	52 km
Hojubana	Saitama	Japan	Village	-	52 km
Wakaguri	Ibaraki	Japan	Village	-	52 km
Yama	Kanagawa	Japan	Village	-	52 km
Fujisawa	Kanagawa	Japan	City	390000 people	53 km
Edosaki	Ibaraki	Japan	Village	21000 people	53 km
Ohara	Chiba	Japan	City	20000 people	53 km
Kamogawa	Chiba	Japan	Village	29000 people	53 km
Hoshubana	Chiba	Japan	Village	-	53 km
Matsugi	Tokyo	Japan	Village	-	54 km
Kansaki	Chiba	Japan	Village	-	54 km
Naka-Shinden	Kanagawa	Japan	Village	-	54 km
Hirayama	Tokyo	Japan	Village	-	54 km
Arakawa-Oki	Ibaraki	Japan	Village	-	54 km
Yoda	Kanagawa	Japan	Village	-	54 km
Numa	Tokyo	Japan	Village	-	54 km
Ikku	Ibaraki	Japan	Village	-	54 km
Katsuyama	Chiba	Japan	Village	-	55 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
Tokyo Haneda International	HND	7	Civ.	Paved	Yes	9800	18 km
Shimoshizu		30				0	19 km
Kisarazu		3	Mil.	Paved	Yes	6000	20 km
Shimofusa		30	Civ.	Paved	Yes	7300	26 km
Yokohama	YOK	unknown				0	33 km
Ryugasaki South		2				0	41 km
Chofu		41	Civ.	Paved	No	3200	42 km
Tokyo Narita International	NRT	42	Civ.	Paved	Yes	13100	43 km
Ryugasaki		2				0	45 km
Atsugi	NJA	62	Mil.	Paved	Yes	7900	49 km
Chiba-ken		19				0	51 km
Katsner AAF		109	Civ.	Paved	No	1900	53 km
Tachikawa		95				0	54 km
		26				0	55 km
Iruma		91	Mil.	Paved	Yes	6500	59 km
Yokota AFB	OKO	139	Mil.	Paved	Yes	11000	60 km
Honda		12				0	61 km
Tateyama		3				0	66 km
Hyakuri		32	Mil.	Paved	Yes	8800	79 km
Onishi		20				0	86 km
Shimo Kolzumi		30				0	94 km

Ports

Name	LOCODE	Country	Distance
Katunan Ko		Japan	11 km
Anegasaki	JPANE	Japan	12 km
Goi	JPGOI	Japan	12 km
Chiba	JPCHB	Japan	13 km
Kawasaki	JPKWS	Japan	20 km
Ogasawara	JPOGA	Japan	20 km
Kisarazu	JPKZU	Japan	21 km
Tokyo	JPTYO	Japan	25 km
Yokohama	JPYOK	Japan	33 km
Neghisi	JPNGI	Japan	36 km
Yokosuka	JPYOS	Japan	43 km
Kurihama	JPKRH	Japan	47 km
Katsuura Ko		Japan	56 km
Tateyama	JPTTY	Japan	65 km
Kashima	JPKSM	Japan	75 km
Choshi	JPCHO	Japan	80 km

Dams

Reservoir	Dam Name	River	Year	Distance
Yamakura	Yamakura	Yamakuragawa	1964	17 km
Takatakiko	Takataki	Yorogawa	1990	28 km
Kori	Kori	Korigawa	1972	31 km
Kameyamako	Kameyama	Obitsugawa	1980	39 km
Sakuma	Sakuma	Okuzuregawa	1990	50 km
Tamako	Murayamashimo	Tamagawa	2008	53 km
Tamako	Murayamakami	Tamagawa	1924	55 km
Sayamako	Yamaguchi	Tamagawa	2002	56 km
Tsukuiko	Shiroyama	Sagamigawa	1964	63 km
Kasumigaura	Kasumigaura-Kaihatsu	Tonegawa	1995	65 km
Miyukiko	Gongendochosetsuchi	Nakagawa	1991	65 km
Miyagaseko	Miyagase	Nakatsugawa	2001	66 km
Miyazawako	Miyazawatameike	Koazegawa	1941	67 km
Sagamiko	Sagami	Sagamigawa	1947	71 km
Yanakako	Wataraseyusuichi	Watarasegawa	1989	75 km
Naguriko	Arima	Arimagawa	1985	80 km
Iizumishusuizeki	Iizumishusuizeki	Sakawagawa	1973	80 km
Ono	Ono	Yatagawa	1914	83 km
Tanzawako	Miho	Kawauchigawa	1978	87 km
Okutamako	Ogohchi	Tamagawa	1957	87 km

Nuclear power plants

Site	Type	Name	Country
Site-Kanagawa	Research Reactor	TTR	Japan
Site-Kawasaki	Research Reactor	Toshiba NCA	Japan
Tokyo	Research Reactor	HTR	Japan
Site-Kanagawa	Research Reactor	Musashi Reactor	Japan
Site-Kanagawa	Research Reactor	TRIGA-II Rikkyo	Japan
Site-Ōarai	Research reactor	HTTR	Japan
Site-Higashiibaraki-gun	Research Reactor	JMTR	Japan
Site-Oarai	Research Reactor	JOYO	Japan
Site-Oarai-machi	Research Reactor	DCA	Japan

More information

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

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