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.

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

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 ,of Kanto (population 38,543,000) . The alertlevel for this event is GREEN

Intensity Population
120000 people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1507714 140.677/35.616 6.2 44.2 5.323 26 May 2023 10:31 00:28 (new episode)
2 0 1507714 140.677/35.616 6.2 44.2 5.323 26 May 2023 10:40 00:37 (upd of #1)
3 0 1507718 140.519/35.518 6.1 44.5 5.017 26 May 2023 11:09 01:05 (new episode)
4 0 1507718 140.519/35.518 6.1 44.5 5.017 26 May 2023 12:10 02:07 (upd of #3)
5 0 1507718 140.519/35.518 6.1 44.5 4.71 27 May 2023 10:40 1d 00:37 (upd of #4)

Affected Provinces

Intensity Region Province Country Population
Kanto Japan 110000 people
Kanto Japan 18.4 million people
Kanto Japan 480000 people
Chubu Japan 8400 people
Tohoku Japan 1200 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Hasunuma Chiba Japan Village - 9 km
Togane Chiba Japan Village 55000 people 13 km
Yokoshiba Chiba Japan Village - 16 km
Ichinomiya Chiba Japan Village - 22 km
Katakai Chiba Japan City - 7 km
Naruto Chiba Japan City 22000 people 14 km
Oami Chiba Japan Village - 19 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
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
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
Kashima Ibaraki Japan Village 65000 people 51 km
Edosaki Ibaraki Japan Village 21000 people 52 km
Itako Ibaraki Japan Village 25000 people 52 km
Ryugaski Ibaraki Japan Village - 52 km
Kamagaya Chiba Japan City 110000 people 53 km
Aso Ibaraki Japan Village - 54 km
Kisarazu Chiba Japan City 120000 people 55 km
Negoya Ibaraki Japan Village - 56 km
Narage Ibaraki Japan Village - 58 km
Kamogawa Chiba Japan Village 29000 people 58 km
Ichikawa Chiba Japan City 460000 people 58 km
Kihara Ibaraki Japan Village - 59 km
Abiko Chiba Japan City 130000 people 59 km
Inoue Ibaraki Japan Village - 60 km
Ushiku Ibaraki Japan Village 79000 people 61 km
Hamatsuga Ibaraki Japan Village - 61 km
Yamada Ibaraki Japan Village - 61 km
Matsudo Chiba Japan City 460000 people 62 km
Fuda Ibaraki Japan Village - 62 km
Kimitsu Chiba Japan Village 92000 people 63 km
Owada Ibaraki Japan Village - 65 km
Obari Ibaraki Japan Village - 68 km
Yatabe Ibaraki Japan Village - 69 km
Wada Chiba Japan Village - 70 km
Yoshikawa Saitama Japan Village 60000 people 74 km
Tamatsukuri Ibaraki Japan Village - 74 km
Hokota Ibaraki Japan Village 28000 people 75 km
Noda Chiba Japan City 120000 people 75 km
Ishioka Ibaraki Japan Village 52000 people 77 km
Katsuyama Chiba Japan Village - 77 km
Chikura Chiba Japan City - 80 km
Katakura Ibaraki Japan Village - 81 km
Yokosuka Kanagawa Japan City 420000 people 82 km
Hojo Ibaraki Japan Village - 82 km
Nagasu Ibaraki Japan Village - 83 km
Yoshinuma Ibaraki Japan Village - 83 km
Tateyama Chiba Japan City 49000 people 85 km
Hojubana Saitama Japan Village - 85 km
Kakioka Ibaraki Japan Village - 85 km
Kutsukake Ibaraki Japan Village - 86 km
Okunoya Ibaraki Japan Village - 86 km
Shimotsuma Ibaraki Japan Village 37000 people 89 km
Iwama Ibaraki Japan Village - 89 km
Hayama Kanagawa Japan Village 31000 people 90 km
Kamakura Kanagawa Japan City 160000 people 90 km
Nemoto Chiba Japan Village - 91 km
Sakai Ibaraki Japan Village 26000 people 92 km
Misaki Kanagawa Japan Village - 92 km
Sunosaki Chiba Japan Village - 92 km
Omiya Saitama Japan City 440000 people 92 km
Mito Ibaraki Japan Major city 240000 people 93 km
Tairamachi Ibaraki Japan Village - 93 km
Tomobe Ibaraki Japan Village 37000 people 94 km
Kurogo Ibaraki Japan Village - 94 km
Yabuhana Kanagawa Japan Village - 96 km
Nakaminato Ibaraki Japan Village 31000 people 96 km
Sugisaki Ibaraki Japan Village - 97 km
Fujisawa Kanagawa Japan City 390000 people 97 km
Sekimoto Ibaraki Japan Village - 97 km
Kuki Saitama Japan Village 72000 people 98 km
Kasama Ibaraki Japan Village 29000 people 98 km
Morokawa Ibaraki Japan Village - 99 km
Kadoi Ibaraki Japan Village - 99 km
Hirakata Saitama Japan Village - 99 km
Iida Ibaraki Japan Village - 100 km
Shimodate Ibaraki Japan City 63000 people 100 km
Iwase Ibaraki Japan Village 22000 people 100 km
Kurihashi Saitama Japan Village 28000 people 101 km
Konosu Saitama Japan Village 82000 people 102 km
Sugaya Ibaraki Japan Village - 103 km
Atsugi Kanagawa Japan City 230000 people 104 km
Chigasaki Kanagawa Japan City 230000 people 104 km
Iiyama Nagano Japan Village 25000 people 246 km

see full list


Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Intensity 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

Ports

Intensity 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
Kisarazu JPKZU Japan 56 km
Kawasaki JPKWS Japan 69 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
Hitachi JPHTC Japan 109 km

Dams

Intensity 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
Jajanboike Kozogawa Kozogawa 1985 101 km
Yanakako Wataraseyusuichi Watarasegawa 1989 107 km

Nuclear plants

Intensity Name Country Reactors Distance
TOKAI JAPAN 3 105 km

More information

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