M 4.7 in Japan on 01 Jul 2020 09:25 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: 4.7M
Depth: 43.79 Km
Lat/Lon: 35.3238 , 140.5543
Event Date: 01 Jul 2020 09:25 UTC
01 Jul 2020 18:25 Local
Exposed Population:
24690000 people within 100km
Source: NEIC us7000afrn
Inserted at: 01 Jul 2020 09:50 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 0
us7000afrn Scaled population (vector) 6.86  
  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
1318715 0 01 Jul 2020 09:25 4.7M, 43.79km N/A 24.7 million (in 100km) 00:25 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 Ohara, Ichinomiya, Katakai, Mobara, Katsuura, Chonan, Togane, Hasunuma, Oami, Naruto, and Yokohama.

Radius Population
100 km 24.7 million people
75 km 5.7 million people
50 km 1.4 million people
20 km 52000 people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Kanto Japan 38.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Ohara Chiba Japan City 20000 people 17 km
Ichinomiya Chiba Japan Village - 18 km
Katakai Chiba Japan City - 24 km
Mobara Chiba Japan City 96000 people 26 km
Katsuura Chiba Japan Village 22000 people 29 km
Chonan Chiba Japan Village - 30 km
Togane Chiba Japan Village 55000 people 30 km
Hasunuma Chiba Japan Village - 30 km
Oami Chiba Japan Village - 31 km
Naruto Chiba Japan City 22000 people 34 km
Yokoshiba Chiba Japan Village - 37 km
Ushiku Chiba Japan Village - 38 km
Fujioayashi Chiba Japan Village - 42 km
Kururi Chiba Japan Village - 43 km
Asahi Yokaichiba Chiba Japan Village - 45 km
Tako Chiba Japan City - 46 km
Kamogawa Chiba Japan Village 29000 people 46 km
Goi Chiba Japan Village - 48 km
Narita Chiba Japan City 100000 people 49 km
Tokawacho Chiba Japan Village - 50 km
Chiba Chiba Japan Major city 920000 people 50 km
Inuwaka Chiba Japan Village - 50 km
Anegasaki Chiba Japan Village - 50 km
Choshi Chiba Japan City 84000 people 52 km
Sakura Chiba Japan City 180000 people 53 km
Ino Chiba Japan Village - 56 km
Kisarazu Chiba Japan City 120000 people 56 km
Yatabe Ibaraki Japan Village - 57 km
Kobata Chiba Japan Village - 58 km
Wada Chiba Japan Village - 58 km
Omigawa Chiba Japan City 25000 people 59 km
Chiba-nyutaun Chiba Japan Village - 59 km
Minato Chiba Japan Village - 61 km
Namegawa Chiba Japan Village - 63 km
Kimitsu Chiba Japan Village 92000 people 63 km
Okunoya Ibaraki Japan Village - 63 km
Ryugasaki Chiba Japan Village 85000 people 64 km
Shirako Chiba Japan Village - 65 km
Kansaki Chiba Japan Village - 65 km
Kubo Chiba Japan Village - 65 km
Funabashi Chiba Japan City 560000 people 67 km
Futtso Chiba Japan Village - 67 km
Seto Chiba Japan Village - 67 km
Chikura Chiba Japan City - 67 km
Idako Ibaraki Japan Village - 68 km
Omori Chiba Japan Village - 69 km
Kamagaya Chiba Japan City 110000 people 69 km
Katsuyama Chiba Japan Village - 69 km
Tokyo Tokyo Japan Capital 8.1 million people 76 km
Kawasaki Kanagawa Japan Major city 1.3 million people 81 km
Yokohama Kanagawa Japan Major city 3.6 million people 86 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 51 km
Shimoshizu 30 0 51 km
Kisarazu 3 Mil. Paved Yes 6000 59 km
Ryugasaki South 2 0 67 km
Ryugasaki 2 0 71 km
Shimofusa 30 Civ. Paved Yes 7300 72 km
Tokyo Haneda International HND 7 Civ. Paved Yes 9800 75 km
Tateyama 3 0 76 km
Yokohama YOK unknown 0 85 km
26 0 86 km
Hyakuri 32 Mil. Paved Yes 8800 96 km

Ports

Name LOCODE Country Distance
Katsuura Ko Japan 31 km
Goi JPGOI Japan 47 km
Chiba JPCHB Japan 51 km
Anegasaki JPANE Japan 52 km
Choshi JPCHO Japan 52 km
Kisarazu JPKZU Japan 58 km
Katunan Ko Japan 65 km
Kashima JPKSM Japan 65 km
Tateyama JPTTY Japan 74 km
Kawasaki JPKWS Japan 76 km
Kurihama JPKRH Japan 79 km
Ogasawara JPOGA Japan 79 km
Yokosuka JPYOS Japan 82 km
Tokyo JPTYO Japan 84 km
Neghisi JPNGI Japan 84 km
Yokohama JPYOK Japan 85 km

Dams

Reservoir Dam Name River Year Distance
Takatakiko Takataki Yorogawa 1990 37 km
Yamakura Yamakura Yamakuragawa 1964 43 km
Kameyamako Kameyama Obitsugawa 1980 44 km
Kori Kori Korigawa 1972 59 km
Sakuma Sakuma Okuzuregawa 1990 64 km
Kasumigaura Kasumigaura-Kaihatsu Tonegawa 1995 71 km

More information

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