M 4.8 in Japan on 11 Apr 2017 18:10 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: 65.17 Km
Lat/Lon: 36.1642 , 140.1796
Event Date: 11 Apr 2017 18:10 UTC
12 Apr 2017 03:10 Local
Exposed Population:
32440000 people within 100km
Source: NEIC us10008gq6
Inserted at: 11 Apr 2017 18:27 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
us10008gq6 Scaled population (vector) 0  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1163679 0.2 11 Apr 2017 18:10 4.8M, 65.17km N/A 32.4 million (in 100km) 00:16 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 Hongo, Sawabe, Busshoji, Fujisawa, Nakanuki, Naka-Shizuku, Tsuchida, Oda, Kawamata, Obata, and Yokohama.

Radius Population
100 km 36.8 million people
75 km 23.8 million people
50 km 6.9 million people
20 km 690000 people
10 km 190000 people
5 km 15000 people
2 km 1300 people

Affected Provinces

Region Province Country Population
Kanto Japan 38.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Hongo Ibaraki Japan Village - 1 km
Sawabe Ibaraki Japan Village - 3 km
Busshoji Ibaraki Japan Village - 4 km
Fujisawa Ibaraki Japan Village - 5 km
Nakanuki Ibaraki Japan Village - 6 km
Naka-Shizuku Ibaraki Japan Village - 6 km
Tsuchida Ibaraki Japan Village - 6 km
Oda Ibaraki Japan Village - 6 km
Kawamata Ibaraki Japan Village - 7 km
Obata Ibaraki Japan Village - 7 km
Sakura Ibaraki Japan Village - 7 km
Hojo Ibaraki Japan Village - 8 km
Tsukuba Ibaraki Japan City 180000 people 8 km
Ozone Ibaraki Japan Village - 8 km
Kakioka Ibaraki Japan Village - 8 km
Ishioka Ibaraki Japan Village 52000 people 10 km
Uwaso Ibaraki Japan Village - 11 km
Iioka Ibaraki Japan Village - 12 km
Kami-Oshima Ibaraki Japan Village - 12 km
Horage Ibaraki Japan Village - 12 km
Kami-Hirooka Ibaraki Japan Village - 12 km
Kawaraya Ibaraki Japan Village - 13 km
Hatori Ibaraki Japan Village - 13 km
Kai-Tamari Ibaraki Japan Village - 13 km
Takehara Ibaraki Japan Village - 14 km
Otsuka Ibaraki Japan Village - 14 km
Yoshinuma Ibaraki Japan Village - 14 km
Shishikura Ibaraki Japan Village - 14 km
Arakawa-Oki Ibaraki Japan Village - 15 km
Sakihama Ibaraki Japan Village - 15 km
Ikku Ibaraki Japan Village - 15 km
Takasai Ibaraki Japan Village - 15 km
Miyata Ibaraki Japan Village - 15 km
Ebigashima Ibaraki Japan Village - 16 km
Ogawa Ibaraki Japan Village - 16 km
Kamigo Ibaraki Japan Village - 16 km
Omasu Ibaraki Japan Village - 16 km
Tamatsukuri Ibaraki Japan Village - 16 km
Sanga Ibaraki Japan Village - 16 km
Owada Ibaraki Japan Village - 17 km
Iwama Ibaraki Japan Village - 17 km
Tetsutsumi Ibaraki Japan Village - 17 km
Kashiwazaki Ibaraki Japan Village - 17 km
Wakaguri Ibaraki Japan Village - 17 km
Nagasawa Ibaraki Japan Village - 18 km
Hinosawa Ibaraki Japan Village - 18 km
Katakura Ibaraki Japan Village - 18 km
Higashi-Hozui Ibaraki Japan Village - 18 km
Shimana Ibaraki Japan Village - 18 km
Yatabe Ibaraki Japan Village - 18 km
Jikkoku Ibaraki Japan Village - 18 km
Hangu Ibaraki Japan Village - 19 km
Zodo Ibaraki Japan Village - 19 km
Wakayagi Ibaraki Japan Village - 19 km
Motogi Ibaraki Japan Village - 19 km
Ago Ibaraki Japan Village - 19 km
Kihara Ibaraki Japan Village - 19 km
Niiwaddo Ibaraki Japan Village - 20 km
Aruga Ibaraki Japan Village - 20 km
Sone Ibaraki Japan Village - 20 km
Shimotsuma Ibaraki Japan Village 37000 people 20 km
Mazunochi Ibaraki Japan Village - 20 km
Goka Ibaraki Japan Village - 20 km
Kurogo Ibaraki Japan Village - 20 km
Washijuku Ibaraki Japan Village - 20 km
Tonouchi Ibaraki Japan Village - 20 km
Ishige Ibaraki Japan Village 25000 people 21 km
Sumiyoshi Ibaraki Japan Village - 21 km
Yaida Ibaraki Japan Village - 21 km
Fukuhara Ibaraki Japan Village - 21 km
Usugi Ibaraki Japan Village - 21 km
Yamanokami Ibaraki Japan Village - 21 km
Tairamachi Ibaraki Japan Village - 22 km
Nishi-Kobana Ibaraki Japan Village - 22 km
Kadoi Ibaraki Japan Village - 22 km
Shimo-Nodono Ibaraki Japan Village - 22 km
Iinuma Ibaraki Japan Village - 22 km
Ushiku Ibaraki Japan Village 79000 people 22 km
Iwase Ibaraki Japan Village 22000 people 23 km
Kurokoma Ibaraki Japan Village - 23 km
Kami-Naganuma Ibaraki Japan Village - 23 km
Momiji Ibaraki Japan Village - 23 km
Okunoya Ibaraki Japan Village - 23 km
Emura Ibaraki Japan Village - 23 km
Torihada Ibaraki Japan Village - 23 km
Tomobe Ibaraki Japan Village 37000 people 24 km
Kamiyama Ibaraki Japan Village - 24 km
Shimodate Ibaraki Japan City 63000 people 24 km
Koshio Ibaraki Japan Village - 24 km
Noso Ibaraki Japan Village - 24 km
Oyama Ibaraki Japan Village - 24 km
Akiba Ibaraki Japan Village - 24 km
Saheita-Shinden Ibaraki Japan Village - 24 km
Kutsukake Ibaraki Japan Village - 25 km
Kasama Ibaraki Japan Village 29000 people 25 km
Sekimoto Ibaraki Japan Village - 25 km
Naka-Izumi Ibaraki Japan Village - 25 km
Ogoto Ibaraki Japan Village - 25 km
Obari Ibaraki Japan Village - 26 km
Owana Ibaraki Japan Village - 26 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
26 0 14 km
Hyakuri 32 Mil. Paved Yes 8800 21 km
Ryugasaki 2 0 28 km
Ryugasaki South 2 0 33 km
Chiba-ken 19 0 38 km
Shimofusa 30 Civ. Paved Yes 7300 43 km
Suzumenomiya 82 0 45 km
Utsunomiya QUT 102 Civ. Paved Yes 5500 48 km
Tokyo Narita International NRT 42 Civ. Paved Yes 13100 48 km
Shimoshizu 30 0 57 km
Honda 12 0 63 km
Onishi 20 0 63 km
Shimo Kolzumi 30 0 71 km
Tokyo Haneda International HND 7 Civ. Paved Yes 9800 77 km
Iruma 91 Mil. Paved Yes 6500 78 km
Otawara 201 0 79 km
Chofu 41 Civ. Paved No 3200 80 km
Tachikawa 95 0 87 km
Yokota AFB OKO 139 Mil. Paved Yes 11000 88 km
Kisarazu 3 Mil. Paved Yes 6000 88 km
Yokohama YOK unknown 0 92 km

Ports

Name LOCODE Country Distance
Hitachi JPHTC Japan 55 km
Kashima JPKSM Japan 55 km
Katunan Ko Japan 57 km
Anegasaki JPANE Japan 62 km
Tokyo JPTYO Japan 63 km
Chiba JPCHB Japan 63 km
Ogasawara JPOGA Japan 64 km
Goi JPGOI Japan 70 km
Choshi JPCHO Japan 75 km
Kawasaki JPKWS Japan 80 km
Kisarazu JPKZU Japan 89 km
Yokohama JPYOK Japan 93 km
Neghisi JPNGI Japan 98 km

Dams

Reservoir Dam Name River Year Distance
Jajanboike Kozogawa Kozogawa 1985 34 km
Kasumigaura Kasumigaura-Kaihatsu Tonegawa 1995 37 km
Miyukiko Gongendochosetsuchi Nakagawa 1991 42 km
Yanakako Wataraseyusuichi Watarasegawa 1989 45 km
Yamakura Yamakura Yamakuragawa 1964 75 km
Higashikoyako Nishiarakawa Nishiarakawa 1967 80 km
Tamako Murayamashimo Tamagawa 2008 80 km
Terayama Terayama Miyakawa 1984 81 km
Sayamako Yamaguchi Tamagawa 2002 81 km
Tamako Murayamakami Tamagawa 1924 82 km
Miyazawako Miyazawatameike Koazegawa 1941 83 km
Kusakiko Kusaki Watarasegawa 1976 84 km
Imaichichoseichi Imaichi Togawa 1988 87 km
Mizunuma Mizunuma Hanazonokawa 1966 88 km
Chuzenjiko Chuzenji Daiyagawa 1998 88 km
Takatakiko Takataki Yorogawa 1990 90 km
Kuriyamachoseichi Kuriyama Nebesawagawa 1988 90 km
Shiobara Shiobara Hokigawa 1978 92 km
Ikariko Ikari Ojikagawa 1956 92 km
Yashioko Kawaji Kunugawa 1983 93 km
Kurobe Kurobe Kinugawa 1912 93 km
Shitokiko Shitoki Shitokigawa 1983 96 km
Naguriko Arima Arimagawa 1985 96 km
Sabigawa Sabigawa Sabigawa 1994 96 km
Kawamatako Kawamata Kinugawa 1966 99 km
Kori Kori Korigawa 1972 100 km

Nuclear plants

Name Country Reactors Distance
TOKAI JAPAN 3 51 km

More information

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