M 4.6 in Japan on 25 Feb 2017 04:52 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: 4.6M
Depth: 32.13 Km
Lat/Lon: 38.7529 , 142.2258
Event Date: 25 Feb 2017 04:52 UTC
25 Feb 2017 13:52 Local
Exposed Population:
300000 people within 100km
Source: NEIC us20008mcu
Inserted at: 25 Feb 2017 05:12 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
us20008mcu 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
1158601 0 25 Feb 2017 04:52 4.6M, 32.13km N/A 310 thousand (in 100km) 00:19 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 Tohoku (population 9,984,608) . The nearest places are Nonomae, Ryori, Okubo, Kurosaki, Kesennuma, Tomari, Sakihama, Koishihama, Sakihama, Nagasaki, and Terama.

Radius Population
100 km 680000 people
75 km 230000 people
50 km 2500 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Tohoku Japan 10 million people
Kanto Japan 38.5 million people
Hokkaido Japan 5.8 million people
Chubu Japan 5.2 million people

Affected populated places

Name Region Province Country City class Population Distance
Nonomae Iwate Japan Village - 48 km
Ryori Iwate Japan Village - 49 km
Okubo Iwate Japan Village - 49 km
Kurosaki Iwate Japan Village - 50 km
Kesennuma Miyagi Japan Village 59000 people 50 km
Tomari Iwate Japan Village - 50 km
Sakihama Miyagi Japan Village - 50 km
Koishihama Iwate Japan Village - 50 km
Sakihama Iwate Japan Village - 50 km
Nagasaki Iwate Japan Village - 51 km
Attari Iwate Japan Village - 51 km
Kogakuchi Iwate Japan Village - 52 km
Shimo-Horei Iwate Japan Village - 53 km
Shuku Miyagi Japan Village - 53 km
Hosaura Iwate Japan Village - 53 km
Urahama Iwate Japan Village - 54 km
Matsuzaki Miyagi Japan Village - 54 km
Tadagoe Miyagi Japan Village - 54 km
Okkirai Iwate Japan Village - 54 km
Shimo-Funato Iwate Japan Village - 54 km
Uranohama Miyagi Japan Village - 54 km
Ofunato Iwate Japan Village 37000 people 55 km
Tsurugaura Miyagi Japan Village - 55 km
Oishi Iwate Japan Village - 56 km
Akuao Miyagi Japan Village - 56 km
Wakinosawa Iwate Japan Village - 57 km
Koharagi Miyagi Japan Village - 57 km
Oya Miyagi Japan Village - 57 km
Nakase Miyagi Japan Village - 57 km
Tatamiishi Iwate Japan Village - 57 km
Tomarihama Miyagi Japan Village - 58 km
Sakari Iwate Japan Village - 58 km
Natari Miyagi Japan Village - 58 km
Imaizumi Iwate Japan Village - 58 km
Hama Miyagi Japan Village - 58 km
Rikuzen-Takata Iwate Japan Village - 59 km
Hiraiso Miyagi Japan Village - 59 km
Shirahama Iwate Japan Village - 59 km
Kojirahama Iwate Japan Village - 59 km
Minato Miyagi Japan Village - 60 km
Kesaiso Miyagi Japan Village - 61 km
Isatomae Miyagi Japan Village - 61 km
Hongo Iwate Japan Village - 61 km
Nakasato Iwate Japan Village - 61 km
Heida Iwate Japan Village - 62 km
Motoyoshi Miyagi Japan Village - 62 km
Kami-Heida Iwate Japan Village - 63 km
Koizumi Miyagi Japan Village - 63 km
Kodaki Miyagi Japan Village - 63 km
Suwa Iwate Japan Village - 63 km
Ozashi Miyagi Japan Village - 63 km
Tsubonosawa Iwate Japan Village - 64 km
Terahama Miyagi Japan Village - 64 km
Uchikoshi Iwate Japan Village - 64 km
Kamaishi Iwate Japan City 42000 people 64 km
Aratohama Miyagi Japan Village - 65 km
Osu Miyagi Japan Village - 65 km
Inohana Miyagi Japan Village - 65 km
Aikawa Miyagi Japan Village - 65 km
Kumazawa Miyagi Japan Village - 66 km
Tsuya Miyagi Japan Village - 67 km
Ohama Miyagi Japan Village - 67 km
Funagoshi Miyagi Japan Village - 67 km
Kuwahama Miyagi Japan Village - 67 km
Haraigawa Miyagi Japan Village - 67 km
Tatsuhama Miyagi Japan Village - 68 km
Shizugawa Miyagi Japan Village - 68 km
Sekizawa Iwate Japan Village - 68 km
Magome Miyagi Japan Village - 68 km
Shimo-Tsuyakawa Iwate Japan Village - 68 km
Hakozaki Iwate Japan Village - 69 km
Tsukihama Miyagi Japan Village - 69 km
Ryoishi Iwate Japan Village - 69 km
Izushima Miyagi Japan Village - 69 km
Setamai Iwate Japan Village - 70 km
Terama Miyagi Japan Village - 70 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
Matsushima 2 Civ. Paved Yes 8800 96 km

Ports

Name LOCODE Country Distance
Ofunato JPOFT Japan 55 km
Kesennuma Ko Japan 56 km
Kamaishi JPKIS Japan 64 km
Onagawa JPONG Japan 76 km
Yamada Japan 82 km
Ishinomaki JPISM Japan 88 km

Dams

Reservoir Dam Name River Year Distance
Naganuma Naganuma Hazamagawa 2005 94 km

Nuclear plants

Name Country Reactors Distance
ONAGAWA JAPAN 3 74 km

More information

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