M 4.6 in Japan on 27 May 2017 11:59 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: 4.6M
Depth: 1.64 Km
Lat/Lon: 36.8275 , 138.3968
Event Date: 27 May 2017 11:59 UTC
27 May 2017 20:59 Local
Exposed Population:
3890000 people within 100km
Source: NEIC us10008vsc
Inserted at: 27 May 2017 12:27 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 0
us10008vsc 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
1169108 0 27 May 2017 11:59 4.6M, 1.64km N/A 3.9 million (in 100km) 00:27 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 Chubu (population 5,172,046) . The nearest places are Nakamachi, Iwai, Ochiai, Liyama, Nakamura, Shizuma, Yanagikubo, Koshi, Tsuchihashi, Tonago, and Maebashi.

Radius Population
100 km 4.7 million people
75 km 2.4 million people
50 km 1.1 million people
20 km 160000 people
10 km 60000 people
5 km 19000 people
2 km 1300 people

Affected Provinces

Region Province Country Population
Chubu Japan 5.2 million people
Tohoku Japan 10 million people
Kanto Japan 38.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Nakamachi Nagano Japan Village - 1 km
Iwai Nagano Japan Village - 3 km
Ochiai Nagano Japan Village - 4 km
Liyama Nagano Japan Village - 4 km
Nakamura Nagano Japan Village - 4 km
Shizuma Nagano Japan Village - 4 km
Yanagikubo Nagano Japan Village - 5 km
Koshi Nagano Japan Village - 5 km
Tsuchihashi Nagano Japan Village - 5 km
Tonago Nagano Japan Village - 6 km
Kasahara Nagano Japan Village - 6 km
Yokokura Nagano Japan Village - 7 km
Norimawashi Nagano Japan Village - 7 km
Wakui Nagano Japan Village - 7 km
Kosuge Nagano Japan Village - 8 km
Minami-Nagae Nagano Japan Village - 9 km
Iiyama Nagano Japan Village 25000 people 9 km
Godo Nagano Japan Village - 9 km
Yoshida Nagano Japan Village - 9 km
Kashio Nagano Japan Village - 9 km
Maezaka Nagano Japan Village - 10 km
Nakano Nagano Japan Village 42000 people 11 km
Sano Nagano Japan Village - 11 km
Nozawa Nagano Japan Village - 11 km
Goka Nagano Japan Village - 11 km
Shimbo Nagano Japan Village - 11 km
Kami-Akashio Nagano Japan Village - 12 km
Warabino Nagano Japan Village - 12 km
Tomikura Nagano Japan Village - 12 km
Yadare Nagano Japan Village - 13 km
Aresbara Nagano Japan Village - 13 km
Furumi Nagano Japan Village - 14 km
Oshiha Nagano Japan Village - 15 km
Mishiu Nagano Japan Village - 15 km
Ogem Niigata Japan Village - 15 km
Kobuse Nagano Japan Village - 15 km
Minakuchi Nagano Japan Village - 16 km
Obuse Nagano Japan Village - 16 km
Macihida Nagano Japan Village - 17 km
Mure Nagano Japan Village - 17 km
Bamba Nagano Japan Village - 17 km
Ojika Niigata Japan Village - 18 km
Nanagamaki Nagano Japan Village - 18 km
Niteno Nagano Japan Village - 18 km
Arai Nagano Japan Village 27000 people 18 km
Kashiwahara Nagano Japan Village - 18 km
Kamibaba Niigata Japan Village - 19 km
Fujisawa Nagano Japan Village - 19 km
Okubo Nagano Japan Village - 19 km
Sekiyama Niigata Japan Village - 19 km
Yoshi Nagano Japan Village - 19 km
Akakura Niigata Japan Village - 19 km
Izumidaira Nagano Japan Village - 19 km
Ltabashi Nagano Japan Village - 20 km
Kami-Kuguno Niigata Japan Village - 20 km
Kirlake Nagano Japan Village - 20 km
Ikenotaira Niigata Japan Village - 20 km
Kiriake Nagano Japan Village - 20 km
Wayama Nagano Japan Village - 20 km
Kitano Nagano Japan Village - 20 km
Mitsuya Nagano Japan Village - 21 km
Kuguno Niigata Japan Village - 21 km
Suginosawa Niigata Japan Village - 21 km
Suzaka Nagano Japan City 53000 people 21 km
Hari Niigata Japan Village - 21 km
Koakazawa Nagano Japan Village - 21 km
Sekida Niigata Japan Village - 21 km
Sakada Nagano Japan Village - 21 km
Matsuzaki Niigata Japan Village - 21 km
Uwahara Nagano Japan Village - 22 km
Takanashi Nagano Japan Village - 22 km
Myokoji Nagano Japan Village - 22 km
Nagase Nagano Japan Village - 22 km
Kodaki Nagano Japan Village - 22 km
Maekura Niigata Japan Village - 22 km
Eguchi Niigata Japan Village - 23 km
Dogata Niigata Japan Village - 23 km
Nigonki-machi Niigata Japan Village - 23 km
Higashijo Nagano Japan Village - 23 km
Kamigumi Nagano Japan Village - 23 km
Kamiketto Niigata Japan Village - 24 km
Seki Onsen Niigata Japan Village - 24 km
Utsunomata Niigata Japan Village - 24 km
Nakago Niigata Japan Village - 24 km
Shikumi Nagano Japan Village - 24 km
Yokone Niigata Japan Village - 24 km
Okazawa Niigata Japan Village - 24 km
Nashikubo Niigata Japan Village - 25 km
Ohashi Nagano Japan Village - 25 km
Tanahiro Niigata Japan Village - 25 km
Soneda Niigata Japan Village - 25 km
Kita-Yashima Nagano Japan Village - 25 km
Kami-Hideyama Niigata Japan Village - 25 km
Yoshiki Niigata Japan Village - 26 km
Busuno Niigata Japan Village - 26 km
Hokizawa Niigata Japan Village - 26 km
Ota-Shinden Niigata Japan Village - 26 km
Ubara Nagano Japan Village - 26 km
Odaira Niigata Japan Village - 26 km
Ogushi Gunma 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
Nagano 347 0 28 km
Matsumoto MMJ 666 Civ. Paved Yes 6500 85 km

Ports

Name LOCODE Country Distance
Naoetsu JPNAO Japan 41 km
Himekawa Japan 53 km
Toyahashi Japan 97 km

Dams

Reservoir Dam Name River Year Distance
Nozoriko Nozori Nakatsugawa 1956 25 km
Otomiko Sasagamine Sekigawa 1979 29 km
Sugadairako Sugadaira Kangawa 1968 36 km
Tashiroko Kazawa Agatsumagawa 1927 38 km
Okususobana Okususobana Susobanagawa 1979 40 km
Shozenjiko Shozenji Shozenjigawa 1984 40 km
Akayako Aimata Akayagawa 1959 46 km
Akaiwa Akaiwa Tannegawa 1990 53 km
Fujiwarako Fujiwara Tonegawa 1957 57 km
Dogenko Sudagai Tonegawa 1955 59 km
Tanbarako Tanbara Hocchigawa 1981 59 km
Okutoneko Yagisawa Tonegawa 1967 59 km
Shakunageko Sagurigawa Sagurigawa 1993 60 km
Naramatako Naramata Naramatagawa 1990 61 km
Ryujinko Omachi Takasegawa 1985 65 km
Dashidaira Dashidaira Kurobegawa 1985 69 km
Narusawako Narusawa Harunashirakawa 1950 69 km
Makabechoseichi Makabe Tonegawa 1928 69 km
Nanakura Nanakura Takasegawa 1978 70 km
Kurobeko Kurobe Kurobegawa 1961 72 km
Sonoharako Sonohara Katashinagawa 1965 73 km
Nyuko Nyu Nyukawa 1952 74 km
Takaseko Takase Takasegawa 1979 75 km
Oshioko Oshio Nanmokugawa 1968 79 km
Kuromatagawadaini Kuromatagawadaini Kuromatagawa 1964 82 km
Kuromatagawadaiichi Kuromatagawadaiichi Kuromatagawa 1958 83 km
Otsumata Otsumata Otsumatagawa 1968 84 km
Ginzanko Okutadami Tadamigawa 1960 84 km
Marunumako Marunuma Otakigawa 1931 84 km
Kamiichigawadaini Kamiichigawadaini Kamiichigawa 1985 88 km
Kamiichigawa Kamiichigawa Kamiichigawa 1964 89 km
Aburumagawa Aburumagawa Aburumagawa 1986 89 km
Inekoki Inekoki Azusagawa 1969 93 km
Kusakiko Kusaki Watarasegawa 1976 93 km
Arimineko Arimine Wadagawa 1959 93 km
Midono Midono Azusagawa 1970 95 km
Kannako Shimokubo Kannagawa 1968 95 km
Tagokurako Tagokura Tadamigawa 1959 95 km
Tadamiko Tadami Tadamigawa 1989 98 km
Azusako Nagawado Azusagawa 1969 98 km
Chuzenjiko Chuzenji Daiyagawa 1998 99 km
Kawamatako Kawamata Kinugawa 1966 100 km

Nuclear plants

Name Country Reactors Distance
KASHIWAZAKI KARIWA JAPAN 7 67 km

More information

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