Overall Green Earthquake alert in Japan on 26 May 2023 10:03 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 6.2 in Japan on 26 May 2023 10:03 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:	6.2M
Depth:	44.175 Km
Lat/Lon:	35.6159 , 140.6774
Event Date:	26 May 2023 10:03 UTC 26 May 2023 19:03 Local
Exposed Population:	2 thousand in MMI VI
Source:	NEIC us7000k46f
Inserted at:	26 May 2023 10:25 UTC
INFORM Coping capacity of the alert score:	1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		Tsunami		GDACS score
NEIC	0		0		0
us7000k46f	Scaled population (vector)	0	Max wave alert	0m
	C1 shakemap	0	Max wave realtime	0m
	C2 shakemap	0
	Country Vulnerability	0
	INFORM_normalised	0

Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1507714		0	26 May 2023 10:03	6.2M, 44.175km	5.32	N/A (in MMI>=VII)	0m (at 00:00)	00:21	NEIC
1507718		0	26 May 2023 10:03	6.1M, 44.528km	4.71	N/A (in MMI>=VII)		00:59	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 ,of Kanto (population 38,543,000) . The alertlevel for this event is GREEN

Intensity	Population
	1.2 million people

Shakemaps Timeline

Shake id #	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	1507714	140.677/35.616	6.2	44.2	5.323	26 May 2023 10:31	00:28	(new episode)
2	1507714	140.677/35.616	6.2	44.2	5.323	26 May 2023 10:40	00:37	(upd of #1)
3	1507718	140.519/35.518	6.1	44.5	5.017	26 May 2023 11:09	01:05	(new episode)
4	1507718	140.519/35.518	6.1	44.5	5.017	26 May 2023 12:10	02:07	(upd of #3)
5	1507718	140.519/35.518	6.1	44.5	4.71	27 May 2023 10:40	1d 00:37	(upd of #4)

Affected Provinces

Region Province	Country	Population
Kanto	Japan	1.3 million people
Kanto	Japan	40 million people
Tohoku	Japan	500000 people
Chubu	Japan	690000 people

Affected populated places. Areas of interest

Name	Region Province	Country	City class	Population	Distance
Asahi Yokaichiba	Chiba	Japan	Village	-	12 km
Hasunuma	Chiba	Japan	Village	-	17 km
Yokoshiba	Chiba	Japan	Village	-	18 km
Choshi	Chiba	Japan	City	84000 people	19 km
Inuwaka	Chiba	Japan	Village	-	19 km
Yatabe	Ibaraki	Japan	Village	-	23 km
Tako	Chiba	Japan	City	-	23 km
Katakai	Chiba	Japan	City	-	23 km
Naruto	Chiba	Japan	City	22000 people	24 km
Omigawa	Chiba	Japan	City	25000 people	27 km
Togane	Chiba	Japan	Village	55000 people	27 km
Okunoya	Ibaraki	Japan	Village	-	29 km
Narita	Chiba	Japan	City	100000 people	30 km
Ino	Chiba	Japan	Village	-	33 km
Oami	Chiba	Japan	Village	-	35 km
Idako	Ibaraki	Japan	Village	-	37 km
Kashima	Ibaraki	Japan	Village	65000 people	39 km
Ichinomiya	Chiba	Japan	Village	-	39 km
Kansaki	Chiba	Japan	Village	-	40 km
Namegawa	Chiba	Japan	Village	-	41 km
Ryugasaki	Chiba	Japan	Village	85000 people	46 km
Negoya	Ibaraki	Japan	Village	-	47 km
Ohara	Chiba	Japan	City	20000 people	48 km
Yamada	Ibaraki	Japan	Village	-	52 km
Mobara	Chiba	Japan	City	96000 people	40 km
Sakura	Chiba	Japan	City	180000 people	42 km
Itako	Ibaraki	Japan	Village	25000 people	44 km
Koda	Ibaraki	Japan	Village	-	45 km
Chiba-nyutaun	Chiba	Japan	Village	-	47 km
Aso	Ibaraki	Japan	Village	-	47 km
Chonan	Chiba	Japan	Village	-	47 km
Narage	Ibaraki	Japan	Village	-	48 km
Hamatsuga	Ibaraki	Japan	Village	-	49 km
Edosaki	Ibaraki	Japan	Village	21000 people	50 km
Chiba	Chiba	Japan	Major city	920000 people	50 km
Fuda	Ibaraki	Japan	Village	-	52 km
Inoue	Ibaraki	Japan	Village	-	53 km
Ushiku	Chiba	Japan	Village	-	54 km
Goi	Chiba	Japan	Village	-	54 km
Ryugaski	Ibaraki	Japan	Village	-	54 km
Kihara	Ibaraki	Japan	Village	-	56 km
Owada	Ibaraki	Japan	Village	-	60 km
Katsuura	Chiba	Japan	Village	22000 people	61 km
Kamagaya	Chiba	Japan	City	110000 people	62 km
Ushiku	Ibaraki	Japan	Village	79000 people	63 km
Funabashi	Chiba	Japan	City	560000 people	64 km
Hokota	Ibaraki	Japan	Village	28000 people	65 km
Abiko	Chiba	Japan	City	130000 people	65 km
Kururi	Chiba	Japan	Village	-	65 km
Fujioayashi	Chiba	Japan	Village	-	68 km
Tamatsukuri	Ibaraki	Japan	Village	-	68 km
Ichikawa	Chiba	Japan	City	460000 people	69 km
Yatabe	Ibaraki	Japan	Village	-	71 km
Matsudo	Chiba	Japan	City	460000 people	71 km
Obari	Ibaraki	Japan	Village	-	71 km
Kisarazu	Chiba	Japan	City	120000 people	72 km
Ishioka	Ibaraki	Japan	Village	52000 people	73 km
Nagasu	Ibaraki	Japan	Village	-	73 km
Katakura	Ibaraki	Japan	Village	-	74 km
Kamogawa	Chiba	Japan	Village	29000 people	76 km
Tokyo	Tokyo	Japan	Capital	8.1 million people	77 km
Okunoya	Ibaraki	Japan	Village	-	79 km
Kimitsu	Chiba	Japan	Village	92000 people	80 km
Yoshikawa	Saitama	Japan	Village	60000 people	81 km
Hojo	Ibaraki	Japan	Village	-	81 km
Noda	Chiba	Japan	City	120000 people	82 km
Kakioka	Ibaraki	Japan	Village	-	82 km
Yoshinuma	Ibaraki	Japan	Village	-	83 km
Tsukuba	Ibaraki	Japan	City	180000 people	84 km
Iwama	Ibaraki	Japan	Village	-	84 km
Nakaminato	Ibaraki	Japan	Village	31000 people	85 km
Mito	Ibaraki	Japan	Major city	240000 people	86 km
Tairamachi	Ibaraki	Japan	Village	-	87 km
Wada	Chiba	Japan	Village	-	87 km
Tomobe	Ibaraki	Japan	Village	37000 people	88 km
Kutsukake	Ibaraki	Japan	Village	-	88 km
Kawasaki	Kanagawa	Japan	Major city	1.3 million people	89 km
Sugisaki	Ibaraki	Japan	Village	-	90 km
Shimotsuma	Ibaraki	Japan	Village	37000 people	90 km
Hojubana	Saitama	Japan	Village	-	90 km
Iida	Ibaraki	Japan	Village	-	91 km
Kasama	Ibaraki	Japan	Village	29000 people	93 km
Sugaya	Ibaraki	Japan	Village	-	94 km
Kurogo	Ibaraki	Japan	Village	-	94 km
Katsuyama	Chiba	Japan	Village	-	95 km
Sakai	Ibaraki	Japan	Village	26000 people	96 km
Iwase	Ibaraki	Japan	Village	22000 people	97 km
Yokohama	Kanagawa	Japan	Major city	3.6 million people	97 km
Chikura	Chiba	Japan	City	-	97 km
Kuji	Ibaraki	Japan	City	35000 people	97 km
Kadoi	Ibaraki	Japan	Village	-	98 km
Sekimoto	Ibaraki	Japan	Village	-	98 km
Shimodate	Ibaraki	Japan	City	63000 people	99 km
Yokosuka	Kanagawa	Japan	City	420000 people	99 km
Uritsura	Ibaraki	Japan	Village	-	100 km
Omiya	Saitama	Japan	City	440000 people	101 km
Morokawa	Ibaraki	Japan	Village	-	101 km
Chofu	Tokyo	Japan	City	200000 people	102 km
Tateyama	Chiba	Japan	City	49000 people	102 km
Ishitsuka	Ibaraki	Japan	Village	-	103 km
Kuki	Saitama	Japan	Village	72000 people	104 km
Kurihashi	Saitama	Japan	Village	28000 people	105 km
Yatagai	Tochigi	Japan	Village	-	105 km
Omiya	Ibaraki	Japan	Village	27000 people	106 km
Ota	Ibaraki	Japan	Village	-	106 km
Mashiko	Tochigi	Japan	Village	26000 people	107 km
Hayama	Kanagawa	Japan	Village	31000 people	107 km
Kamakura	Kanagawa	Japan	City	160000 people	107 km
Hitachi	Ibaraki	Japan	City	180000 people	108 km
Hirakata	Saitama	Japan	Village	-	108 km
Noguchi	Ibaraki	Japan	Village	-	108 km
Koga	Ibaraki	Japan	City	57000 people	108 km
Kodaira	Tokyo	Japan	City	190000 people	108 km
Moka	Tochigi	Japan	Village	63000 people	109 km
Konosu	Saitama	Japan	Village	82000 people	109 km
Nemoto	Chiba	Japan	Village	-	109 km
Misaki	Kanagawa	Japan	Village	-	110 km
Sunosaki	Chiba	Japan	Village	-	110 km
Oyama	Tochigi	Japan	City	150000 people	110 km
Yabuhana	Kanagawa	Japan	Village	-	112 km
Kawagoe	Saitama	Japan	City	330000 people	113 km
Nanai	Tochigi	Japan	Village	-	113 km
Machiya	Ibaraki	Japan	Village	-	113 km
Fujisawa	Kanagawa	Japan	City	390000 people	114 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 Narita International	NRT	42	Civ.	Paved	Yes	13100	31 km
Ryugasaki South		2				0	49 km
Shimoshizu		30				0	47 km
Ryugasaki		2				0	51 km
Shimofusa		30	Civ.	Paved	Yes	7300	64 km
		26				0	64 km
Hyakuri		32	Mil.	Paved	Yes	8800	67 km
Kisarazu		3	Mil.	Paved	Yes	6000	74 km
Tokyo Haneda International	HND	7	Civ.	Paved	Yes	9800	82 km
Chiba-ken		19				0	90 km
Yokohama	YOK	unknown				0	96 km
Tateyama		3				0	104 km
Chofu		41	Civ.	Paved	No	3200	104 km
Honda		12				0	112 km
Atsugi	NJA	62	Mil.	Paved	Yes	7900	113 km
Tachikawa		95				0	116 km
Katsner AAF		109	Civ.	Paved	No	1900	117 km
Iruma		91	Mil.	Paved	Yes	6500	117 km
Suzumenomiya		82				0	120 km
Yokota AFB	OKO	139	Mil.	Paved	Yes	11000	121 km
Utsunomiya	QUT	102	Civ.	Paved	Yes	5500	123 km
Onishi		20				0	128 km
Shimo Kolzumi		30				0	136 km
Otawara		201				0	150 km
Oshima	OIM	40	Civ.	Paved	Yes	3900	151 km
Fuji		686				0	168 km
Nashigahara		1001				0	169 km

Ports

Name	LOCODE	Country	Distance
Choshi	JPCHO	Japan	19 km
Kashima	JPKSM	Japan	32 km
Anegasaki	JPANE	Japan	52 km
Chiba	JPCHB	Japan	51 km
Goi	JPGOI	Japan	53 km
Katunan Ko		Japan	63 km
Katsuura Ko		Japan	64 km
Kisarazu	JPKZU	Japan	73 km
Ogasawara	JPOGA	Japan	80 km
Kawasaki	JPKWS	Japan	84 km
Tokyo	JPTYO	Japan	84 km
Yokohama	JPYOK	Japan	96 km
Neghisi	JPNGI	Japan	98 km
Hitachi	JPHTC	Japan	98 km
Yokosuka	JPYOS	Japan	100 km
Kurihama	JPKRH	Japan	100 km
Tateyama	JPTTY	Japan	102 km
Onahama	JPONA	Japan	148 km
Oshima	JPOSM	Japan	154 km
Tagonour	JPTGO	Japan	188 km

Dams

Reservoir	Dam Name	River	Year	Distance
Kasumigaura	Kasumigaura-Kaihatsu	Tonegawa	1995	41 km
Yamakura	Yamakura	Yamakuragawa	1964	52 km
Takatakiko	Takataki	Yorogawa	1990	56 km
Kameyamako	Kameyama	Obitsugawa	1980	69 km
Kori	Kori	Korigawa	1972	78 km
Sakuma	Sakuma	Okuzuregawa	1990	89 km
Jajanboike	Kozogawa	Kozogawa	1985	93 km
Miyukiko	Gongendochosetsuchi	Nakagawa	1991	103 km
Yanakako	Wataraseyusuichi	Watarasegawa	1989	111 km
Tamako	Murayamashimo	Tamagawa	2008	113 km
Tamako	Murayamakami	Tamagawa	1924	115 km
Sayamako	Yamaguchi	Tamagawa	2002	116 km
Miyazawako	Miyazawatameike	Koazegawa	1941	125 km
Tsukuiko	Shiroyama	Sagamigawa	1964	126 km
Miyagaseko	Miyagase	Nakatsugawa	2001	130 km
Sagamiko	Sagami	Sagamigawa	1947	134 km
Iizumishusuizeki	Iizumishusuizeki	Sakawagawa	1973	143 km
Takashibako	Takashiba	Samekawa	1961	149 km
Terayama	Terayama	Miyakawa	1984	155 km
Chuzenjiko	Chuzenji	Daiyagawa	1998	164 km
Makabechoseichi	Makabe	Tonegawa	1928	176 km
Narusawako	Narusawa	Harunashirakawa	1950	179 km

Nuclear plants

Intensity	Name	Country	Reactors	Distance
	TOKAI	JAPAN	3	94 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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