M 6.1 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: 6.1M
Depth: 44.528 Km
Lat/Lon: 35.5179 , 140.519
Event Date: 26 May 2023 10:03 UTC
26 May 2023 19:03 Local
Exposed Population: 2.1 million in MMI V
Source: NEIC us7000k46f
Inserted at: 26 May 2023 11:03 UTC
INFORM Coping capacity of the alert score
1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us7000k46f Scaled population (raster) 0  
  C1 shakemap 0  
  C2 shakemap 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*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 509,612) . The nearest places are Katakai, Hasunuma, Togane, Naruto, Yokoshiba, Oami, Ichinomiya, Mobara, Tako, Asahi Yokaichiba, and Mito.

Radius Population
100 km 31.6 million people
75 km 13 million people
50 km 3.5 million people
20 km 270000 people
10 km 43000 people
5 km <1000 people
2 km no people

Affected Provinces

Region Province Country Population
Kanto Japan 510000 people

Affected populated places

Name Region Province Country City class Population Distance
Katakai Chiba Japan City - 7 km
Hasunuma Chiba Japan Village - 9 km
Togane Chiba Japan Village 55000 people 13 km
Naruto Chiba Japan City 22000 people 14 km
Yokoshiba Chiba Japan Village - 16 km
Oami Chiba Japan Village - 19 km
Ichinomiya Chiba Japan Village - 22 km
Mobara Chiba Japan City 96000 people 22 km
Tako Chiba Japan City - 24 km
Asahi Yokaichiba Chiba Japan Village - 26 km
Narita Chiba Japan City 100000 people 28 km
Chonan Chiba Japan Village - 29 km
Ohara Chiba Japan City 20000 people 32 km
Sakura Chiba Japan City 180000 people 34 km
Ino Chiba Japan Village - 35 km
Ushiku Chiba Japan Village - 36 km
Tokawacho Chiba Japan Village - 37 km
Choshi Chiba Japan City 84000 people 37 km
Inuwaka Chiba Japan Village - 37 km
Chiba Chiba Japan Major city 920000 people 37 km
Omigawa Chiba Japan City 25000 people 38 km
Goi Chiba Japan Village - 39 km
Yatabe Ibaraki Japan Village - 39 km
Chiba-nyutaun Chiba Japan Village - 41 km
Namegawa Chiba Japan Village - 41 km
Okunoya Ibaraki Japan Village - 43 km
Ryugasaki Chiba Japan Village 85000 people 43 km
Kansaki Chiba Japan Village - 44 km
Anegasaki Chiba Japan Village - 44 km
Katsuura Chiba Japan Village 22000 people 45 km
Idako Ibaraki Japan Village - 47 km
Kururi Chiba Japan Village - 47 km
Koda Ibaraki Japan Village - 49 km
Fujioayashi Chiba Japan Village - 50 km
Ushibori Ibaraki Japan Village - 50 km
Omori Chiba Japan Village - 50 km
Obunatsu Ibaraki Japan Village - 51 km
Kashima Ibaraki Japan Village 65000 people 51 km
Fukawa Ibaraki Japan Village - 51 km
Kyuchu Ibaraki Japan Village - 51 km
Edosaki Ibaraki Japan Village 21000 people 52 km
Itako Ibaraki Japan Village 25000 people 52 km
Ryugaski Ibaraki Japan Village - 52 km
Funabashi Chiba Japan City 560000 people 53 km
Kamagaya Chiba Japan City 110000 people 53 km
Aso Ibaraki Japan Village - 54 km
Kisarazu Chiba Japan City 120000 people 55 km
Nekoya Ibaraki Japan Village - 55 km
Oyama Ibaraki Japan Village - 56 km
Negoya Ibaraki Japan Village - 56 km
Koya Ibaraki Japan Village - 57 km
Aonuma Ibaraki Japan Village - 57 km
Omi Ibaraki Japan Village - 58 km
Narage Ibaraki Japan Village - 58 km
Oshita Ibaraki Japan Village - 58 km
Kamogawa Chiba Japan Village 29000 people 58 km
Ichikawa Chiba Japan City 460000 people 58 km
Yaida Ibaraki Japan Village - 58 km
Kihara Ibaraki Japan Village - 59 km
Abiko Chiba Japan City 130000 people 59 km
Aotsuka Ibaraki Japan Village - 59 km
Kubo Ibaraki Japan Village - 60 km
Inoue Ibaraki Japan Village - 60 km
Yoshikawa Ibaraki Japan Village - 60 km
Fujishiro Ibaraki Japan Village 33000 people 60 km
Ushiku Ibaraki Japan Village 79000 people 61 km
Hamatsuga Ibaraki Japan Village - 61 km
Yamada Ibaraki Japan Village - 61 km
Jikkoku Ibaraki Japan Village - 62 km
Matsudo Chiba Japan City 460000 people 62 km
Wakaguri Ibaraki Japan Village - 62 km
Obata Ibaraki Japan Village - 62 km
Fuda Ibaraki Japan Village - 62 km
Aruga Ibaraki Japan Village - 62 km
Kimitsu Chiba Japan Village 92000 people 63 km
Ikku Ibaraki Japan Village - 64 km
Sakihama Ibaraki Japan Village - 64 km
Taiyo Ibaraki Japan Village - 64 km
Kofunatsu Ibaraki Japan Village - 64 km
Kyochikama Ibaraki Japan Village - 64 km
Owada Ibaraki Japan Village - 65 km
Tokyo Tokyo Japan Capital 8.1 million people 65 km
Arakawa-Oki Ibaraki Japan Village - 66 km
Kobata Chiba Japan Village - 66 km
Minato Chiba Japan Village - 66 km
Kashiwazaki Ibaraki Japan Village - 66 km
Owana Ibaraki Japan Village - 66 km
Muyokama Ibaraki Japan Village - 67 km
Hinosawa Ibaraki Japan Village - 67 km
Futtso Chiba Japan Village - 68 km
Takata Ibaraki Japan Village - 68 km
Obari Ibaraki Japan Village - 68 km
Dainigorisawa Ibaraki Japan Village - 69 km
Shishikura Ibaraki Japan Village - 69 km
Yatabe Ibaraki Japan Village - 69 km
Wada Chiba Japan Village - 70 km
Kawasaki Kanagawa Japan Major city 1.3 million people 74 km
Yokohama Kanagawa Japan Major city 3.6 million people 82 km
Mito Ibaraki Japan Major city 240000 people 93 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 30 km
Shimoshizu 30 0 36 km
Ryugasaki South 2 0 47 km
Ryugasaki 2 0 51 km
Shimofusa 30 Civ. Paved Yes 7300 56 km
Kisarazu 3 Mil. Paved Yes 6000 57 km
26 0 65 km
Tokyo Haneda International HND 7 Civ. Paved Yes 9800 67 km
Hyakuri 32 Mil. Paved Yes 8800 74 km
Yokohama YOK unknown 0 81 km
Chiba-ken 19 0 84 km
Tateyama 3 0 86 km
Chofu 41 Civ. Paved No 3200 92 km
Atsugi NJA 62 Mil. Paved Yes 7900 97 km

Ports

Name LOCODE Country Distance
Choshi JPCHO Japan 37 km
Goi JPGOI Japan 38 km
Chiba JPCHB Japan 38 km
Anegasaki JPANE Japan 39 km
Kashima JPKSM Japan 45 km
Katsuura Ko Japan 47 km
Katunan Ko Japan 52 km
Kisarazu JPKZU Japan 56 km
Ogasawara JPOGA Japan 68 km
Kawasaki JPKWS Japan 69 km
Tokyo JPTYO Japan 72 km
Yokohama JPYOK Japan 80 km
Neghisi JPNGI Japan 81 km
Kurihama JPKRH Japan 82 km
Yokosuka JPYOS Japan 82 km
Tateyama JPTTY Japan 84 km

Dams

Reservoir Dam Name River Year Distance
Yamakura Yamakura Yamakuragawa 1964 35 km
Takatakiko Takataki Yorogawa 1990 38 km
Kasumigaura Kasumigaura-Kaihatsu Tonegawa 1995 49 km
Kameyamako Kameyama Obitsugawa 1980 51 km
Kori Kori Korigawa 1972 61 km
Sakuma Sakuma Okuzuregawa 1990 71 km
Miyukiko Gongendochosetsuchi Nakagawa 1991 98 km

More information

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