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

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.

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 , Region of Kanto (population 302,907) . The nearest places are Asahi Yokaichiba, Hasunuma, Yokoshiba, Tokawacho, Choshi, Inuwaka, Yatabe, Tako, Katakai, Naruto, and Yokohama.

Radius	Population
100 km	23.9 million people
75 km	7.8 million people
50 km	2.1 million people
20 km	220000 people
10 km	14000 people
5 km	no people
2 km	no people

Affected Provinces

Region Province	Country	Population
Kanto	Japan	300000 people

Affected populated places

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
Tokawacho	Chiba	Japan	Village	-	19 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
Obunatsu	Ibaraki	Japan	Village	-	39 km
Kyuchu	Ibaraki	Japan	Village	-	39 km
Ichinomiya	Chiba	Japan	Village	-	39 km
Mobara	Chiba	Japan	City	96000 people	40 km
Kansaki	Chiba	Japan	Village	-	40 km
Ushibori	Ibaraki	Japan	Village	-	41 km
Namegawa	Chiba	Japan	Village	-	41 km
Sakura	Chiba	Japan	City	180000 people	42 km
Itako	Ibaraki	Japan	Village	25000 people	44 km
Koya	Ibaraki	Japan	Village	-	45 km
Koda	Ibaraki	Japan	Village	-	45 km
Ryugasaki	Chiba	Japan	Village	85000 people	46 km
Nekoya	Ibaraki	Japan	Village	-	46 km
Negoya	Ibaraki	Japan	Village	-	47 km
Chiba-nyutaun	Chiba	Japan	Village	-	47 km
Aso	Ibaraki	Japan	Village	-	47 km
Chonan	Chiba	Japan	Village	-	47 km
Omi	Ibaraki	Japan	Village	-	47 km
Narage	Ibaraki	Japan	Village	-	48 km
Aotsuka	Ibaraki	Japan	Village	-	48 km
Ohara	Chiba	Japan	City	20000 people	48 km
Aonuma	Ibaraki	Japan	Village	-	49 km
Hamatsuga	Ibaraki	Japan	Village	-	49 km
Edosaki	Ibaraki	Japan	Village	21000 people	50 km
Chiba	Chiba	Japan	Major city	920000 people	50 km
Yoshikawa	Ibaraki	Japan	Village	-	51 km
Oshita	Ibaraki	Japan	Village	-	51 km
Yamada	Ibaraki	Japan	Village	-	52 km
Oyama	Ibaraki	Japan	Village	-	52 km
Fuda	Ibaraki	Japan	Village	-	52 km
Kubo	Ibaraki	Japan	Village	-	53 km
Kyochikama	Ibaraki	Japan	Village	-	53 km
Inoue	Ibaraki	Japan	Village	-	53 km
Obata	Ibaraki	Japan	Village	-	54 km
Ushiku	Chiba	Japan	Village	-	54 km
Goi	Chiba	Japan	Village	-	54 km
Taiyo	Ibaraki	Japan	Village	-	54 km
Ryugaski	Ibaraki	Japan	Village	-	54 km
Fukawa	Ibaraki	Japan	Village	-	55 km
Yaida	Ibaraki	Japan	Village	-	55 km
Kofunatsu	Ibaraki	Japan	Village	-	55 km
Omori	Chiba	Japan	Village	-	56 km
Muyokama	Ibaraki	Japan	Village	-	56 km
Kihara	Ibaraki	Japan	Village	-	56 km
Aruga	Ibaraki	Japan	Village	-	58 km
Dainigorisawa	Ibaraki	Japan	Village	-	58 km
Takata	Ibaraki	Japan	Village	-	58 km
Owana	Ibaraki	Japan	Village	-	59 km
Owada	Ibaraki	Japan	Village	-	60 km
Sakihama	Ibaraki	Japan	Village	-	61 km
Anegasaki	Chiba	Japan	Village	-	61 km
Kashiwazaki	Ibaraki	Japan	Village	-	61 km
Katsuura	Chiba	Japan	Village	22000 people	61 km
Otake	Ibaraki	Japan	Village	-	61 km
Wakaguri	Ibaraki	Japan	Village	-	62 km
Jikkoku	Ibaraki	Japan	Village	-	62 km
Kamagaya	Chiba	Japan	City	110000 people	62 km
Ushiku	Ibaraki	Japan	Village	79000 people	63 km
Kamiyama	Ibaraki	Japan	Village	-	63 km
Ikku	Ibaraki	Japan	Village	-	63 km
Iina	Ibaraki	Japan	Village	-	63 km
Funabashi	Chiba	Japan	City	560000 people	64 km
Fujishiro	Ibaraki	Japan	Village	33000 people	64 km
Shishikura	Ibaraki	Japan	Village	-	64 km
Hangu	Ibaraki	Japan	Village	-	64 km
Hokota	Ibaraki	Japan	Village	28000 people	65 km
Ambo	Ibaraki	Japan	Village	-	65 km
Abiko	Chiba	Japan	City	130000 people	65 km
Kururi	Chiba	Japan	Village	-	65 km
Katsuori	Ibaraki	Japan	Village	-	65 km
Arakawa-Oki	Ibaraki	Japan	Village	-	66 km
Torinosu	Ibaraki	Japan	Village	-	66 km
Iioka	Ibaraki	Japan	Village	-	66 km
Tonouchi	Ibaraki	Japan	Village	-	67 km
Ishiyatsudo	Ibaraki	Japan	Village	-	67 km
Noda	Ibaraki	Japan	Village	-	67 km
Fujioayashi	Chiba	Japan	Village	-	68 km
Kai-Tamari	Ibaraki	Japan	Village	-	68 km
Tamatsukuri	Ibaraki	Japan	Village	-	68 km
Ogawa	Ibaraki	Japan	Village	-	68 km
Hinosawa	Ibaraki	Japan	Village	-	68 km
Ichikawa	Chiba	Japan	City	460000 people	69 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
Shimoshizu		30				0	47 km
Ryugasaki South		2				0	49 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

Ports

Name	LOCODE	Country	Distance
Choshi	JPCHO	Japan	19 km
Kashima	JPKSM	Japan	32 km
Chiba	JPCHB	Japan	51 km
Anegasaki	JPANE	Japan	52 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

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

Nuclear plants

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.

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.