M 4.8 in Japan on 31 Mar 2022 11:52 UTC

Hazard models

EQ parameters
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: 4.8M
Depth: 60.9 Km
Lat/Lon: 35.5282 , 140.0679
Event Date: 31 Mar 2022 11:52 UTC
31 Mar 2022 20:52 Local
Exposed Population:
38.6 million in 100km
Source: NEIC us7000gypa
Inserted at: 31 Mar 2022 12:14 UTC
INFORM Coping capacity of the alert score
1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.2 0.2
us7000gypa Scaled population (vector) 7.82  
  C1 earthquake 0.73  
  C2 earthquake -0.22  
  Country Vulnerability -0.71  
  INFORM_normalised 0.57  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1434587 0.2 31 Mar 2022 11:52 4.8M, 60.9km N/A 38.6 million (in 100km) 00:22 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 38,543,000) . The nearest places are Goi, Anegasaki, Chiba, Ushiku, Kisarazu, Funabashi, Chonan, Oami, Mobara, Ichikawa, and Mito.

Radius Population
100 km 38.6 million people
75 km 35.2 million people
50 km 21.9 million people
20 km 1.9 million people
10 km 460000 people
5 km 130000 people
2 km 34000 people

Affected Provinces

Region Province Country Population
Kanto Japan 38.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Goi Chiba Japan Village - 2 km
Anegasaki Chiba Japan Village - 8 km
Chiba Chiba Japan Major city 920000 people 10 km
Ushiku Chiba Japan Village - 16 km
Kisarazu Chiba Japan City 120000 people 20 km
Funabashi Chiba Japan City 560000 people 21 km
Chonan Chiba Japan Village - 22 km
Oami Chiba Japan Village - 22 km
Mobara Chiba Japan City 96000 people 24 km
Ichikawa Chiba Japan City 460000 people 25 km
Sakura Chiba Japan City 180000 people 26 km
Kururi Chiba Japan Village - 26 km
Kamagaya Chiba Japan City 110000 people 26 km
Tokyo Tokyo Japan Capital 8.1 million people 27 km
Kimitsu Chiba Japan Village 92000 people 28 km
Togane Chiba Japan Village 55000 people 29 km
Chiba-nyutaun Chiba Japan Village - 29 km
Matsudo Chiba Japan City 460000 people 30 km
Naruto Chiba Japan City 22000 people 32 km
Ichinomiya Chiba Japan Village - 32 km
Futtso Chiba Japan Village - 33 km
Kawasaki Kanagawa Japan Major city 1.3 million people 33 km
Golanda Tokyo Japan Village - 33 km
Fujioayashi Chiba Japan Village - 33 km
Omori Chiba Japan Village - 34 km
Katakai Chiba Japan City - 34 km
Narita Chiba Japan City 100000 people 37 km
Minato Chiba Japan Village - 38 km
Fukawa Ibaraki Japan Village - 38 km
Hasunuma Chiba Japan Village - 39 km
Abiko Chiba Japan City 130000 people 39 km
Ryugasaki Chiba Japan Village 85000 people 39 km
Yokoshiba Chiba Japan Village - 40 km
Yokohama Kanagawa Japan Major city 3.6 million people 41 km
Asagaya Tokyo Japan Village - 42 km
Tako Chiba Japan City - 43 km
Ohara Chiba Japan City 20000 people 44 km
Ryugaski Ibaraki Japan Village - 44 km
Namegawa Chiba Japan Village - 44 km
Ino Chiba Japan Village - 44 km
Yoshikawa Saitama Japan Village 60000 people 45 km
Kobata Chiba Japan Village - 45 km
Fujishiro Ibaraki Japan Village 33000 people 45 km
Kami-aoki Saitama Japan Village - 46 km
Yokosuka Kanagawa Japan City 420000 people 47 km
Kamogawa Chiba Japan Village 29000 people 47 km
Katsuura Chiba Japan Village 22000 people 47 km
Chofu Tokyo Japan City 200000 people 49 km
Ushiku Ibaraki Japan Village 79000 people 49 km
Obari Ibaraki Japan Village - 50 km
Noda Chiba Japan City 120000 people 50 km
Kansaki Chiba Japan Village - 51 km
Kamakura Kanagawa Japan City 160000 people 52 km
Edosaki Ibaraki Japan Village 21000 people 52 km
Katayama Saitama Japan Village - 53 km
Katsuyama Chiba Japan Village - 53 km
Kanioshioacho Kanagawa Japan Village - 53 km
Jikkoku Ibaraki Japan Village - 53 km
Hayama Kanagawa Japan Village 31000 people 53 km
Minami Yamato Kanagawa Japan Village - 54 km
Kami-Naganuma Ibaraki Japan Village - 54 km
Tsotuma K Tokyo Japan Village - 54 km
Naka-Wada Kanagawa Japan Village - 54 km
Wakaguri Ibaraki Japan Village - 54 km
Hinosawa Ibaraki Japan Village - 54 km
Wada Chiba Japan Village - 54 km
Koda Ibaraki Japan Village - 55 km
Hikago Kanagawa Japan Village - 55 km
Yatabe Ibaraki Japan Village - 55 km
Chogo Kanagawa Japan Village - 55 km
Okura Tokyo Japan Village - 55 km
Bessho Kanagawa Japan Village - 56 km
Sagami Ono Kanagawa Japan Village - 56 km
Yabuhana Kanagawa Japan Village - 56 km
Ikku Ibaraki Japan Village - 56 km
Ochikawa Tokyo Japan Village - 57 km
Oyama Ibaraki Japan Village - 57 km
Arakawa-Oki Ibaraki Japan Village - 57 km
Shimo-Yabe Tokyo Japan Village - 57 km
Kodaira Tokyo Japan City 190000 people 57 km
Asahi Yokaichiba Chiba Japan Village - 57 km
Ochiai Kanagawa Japan Village - 58 km
Kokubunai Tokyo Japan Village - 58 km
Fukaya Kanagawa Japan Village - 58 km
Nozuta Tokyo Japan Village - 58 km
Kihara Ibaraki Japan Village - 58 km
Fujisawa Kanagawa Japan City 390000 people 58 km
Namigi Tokyo Japan Village - 58 km
Omiya Saitama Japan City 440000 people 59 km
Rokujzo Kanagawa Japan Village - 59 km
Renkoji Tokyo Japan Village - 59 km
Nishi-Tsuruma Kanagawa Japan Village - 59 km
Misaki Kanagawa Japan Village - 59 km
Hojubana Saitama Japan Village - 60 km
Yaida Ibaraki Japan Village - 60 km
Oyama Ibaraki Japan Village - 60 km
Kubo Chiba Japan Village - 60 km
Tsuruma Saitama Japan Village - 60 km
Hoshubana Chiba Japan Village - 60 km
Shimana Ibaraki Japan Village - 60 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
Shimoshizu 30 0 16 km
Kisarazu 3 Mil. Paved Yes 6000 20 km
Tokyo Haneda International HND 7 Civ. Paved Yes 9800 26 km
Shimofusa 30 Civ. Paved Yes 7300 30 km
Tokyo Narita International NRT 42 Civ. Paved Yes 13100 39 km
Yokohama YOK unknown 0 40 km
Ryugasaki South 2 0 41 km
Ryugasaki 2 0 46 km
Chofu 41 Civ. Paved No 3200 52 km
Atsugi NJA 62 Mil. Paved Yes 7900 57 km
26 0 58 km
Chiba-ken 19 0 58 km
Katsner AAF 109 Civ. Paved No 1900 61 km
Tachikawa 95 0 64 km
Tateyama 3 0 64 km
Iruma 91 Mil. Paved Yes 6500 69 km
Yokota AFB OKO 139 Mil. Paved Yes 11000 70 km
Honda 12 0 70 km
Hyakuri 32 Mil. Paved Yes 8800 79 km
Onishi 20 0 94 km

Ports

Name LOCODE Country Distance
Goi JPGOI Japan 3 km
Chiba JPCHB Japan 9 km
Anegasaki JPANE Japan 9 km
Katunan Ko Japan 18 km
Kisarazu JPKZU Japan 21 km
Kawasaki JPKWS Japan 28 km
Ogasawara JPOGA Japan 30 km
Tokyo JPTYO Japan 35 km
Yokohama JPYOK Japan 40 km
Neghisi JPNGI Japan 42 km
Yokosuka JPYOS Japan 46 km
Katsuura Ko Japan 48 km
Kurihama JPKRH Japan 49 km
Tateyama JPTTY Japan 63 km
Kashima JPKSM Japan 70 km
Choshi JPCHO Japan 73 km

Dams

Reservoir Dam Name River Year Distance
Yamakura Yamakura Yamakuragawa 1964 7 km
Takatakiko Takataki Yorogawa 1990 20 km
Kori Kori Korigawa 1972 30 km
Kameyamako Kameyama Obitsugawa 1980 33 km
Sakuma Sakuma Okuzuregawa 1990 47 km
Kasumigaura Kasumigaura-Kaihatsu Tonegawa 1995 62 km
Tamako Murayamashimo Tamagawa 2008 63 km
Tamako Murayamakami Tamagawa 1924 65 km
Sayamako Yamaguchi Tamagawa 2002 66 km
Tsukuiko Shiroyama Sagamigawa 1964 71 km
Miyukiko Gongendochosetsuchi Nakagawa 1991 73 km
Miyagaseko Miyagase Nakatsugawa 2001 75 km
Miyazawako Miyazawatameike Koazegawa 1941 77 km
Sagamiko Sagami Sagamigawa 1947 80 km
Yanakako Wataraseyusuichi Watarasegawa 1989 83 km
Iizumishusuizeki Iizumishusuizeki Sakawagawa 1973 87 km
Naguriko Arima Arimagawa 1985 89 km
Ono Ono Yatagawa 1914 92 km
Tanzawako Miho Kawauchigawa 1978 94 km
Okutamako Ogohchi Tamagawa 1957 97 km

More information

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