M 4.8 in Japan on 12 Jul 2013 18:31 UTC
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: 24.17 Km
Lat/Lon: 38.3766 , 142.0822
Event Date: 12 Jul 2013 18:31 UTC
13 Jul 2013 03:31 Local
Exposed Population:
1026941 people within 100km
Source: USGS usB000ID81
Inserted at: 12 Jul 2013 22:07 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
USGS 0.1 0.1
usB000ID81 Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1000584 0.1 12 Jul 2013 18:31 4.8M, 24.17km N/A 1 million (in 100km) 03:35 USGS
1000585 0.1 12 Jul 2013 18:31 4.8M, 24.2km N/A 1 million (in 100km) 03:37 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 Terama, Yoriiso, Niiyama, Tomari, Izushima, Osu, Kumazawa, Oshika, Kuwahama, Ayukawahama, and Tsurugaura.

Radius Population
100 km 820000 people
75 km 190000 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
Chubu Japan 5.2 million people
Hokkaido Japan 5.8 million people

Affected populated places

Name Region Province Country City class Population Distance
Terama Miyagi Japan Village - 49 km
Yoriiso Miyagi Japan Village - 49 km
Niiyama Miyagi Japan Village - 49 km
Tomari Miyagi Japan Village - 49 km
Izushima Miyagi Japan Village - 50 km
Osu Miyagi Japan Village - 50 km
Kumazawa Miyagi Japan Village - 50 km
Oshika Miyagi Japan Village - 50 km
Kuwahama Miyagi Japan Village - 50 km
Ayukawahama Miyagi Japan Village - 51 km
Tatsuhama Miyagi Japan Village - 51 km
Samenoura Miyagi Japan Village - 52 km
Ohama Miyagi Japan Village - 52 km
Yagawa Miyagi Japan Village - 52 km
Kukunari Miyagi Japan Village - 52 km
Funagoshi Miyagi Japan Village - 53 km
Futawatashi Miyagi Japan Village - 53 km
Oharahama Miyagi Japan Village - 54 km
Kobuchi Miyagi Japan Village - 54 km
Ommaehama Miyagi Japan Village - 54 km
Koamikura Miyagi Japan Village - 55 km
Ogatsu Miyagi Japan Village - 55 km
Aji Miyagi Japan Village - 55 km
Ozashi Miyagi Japan Village - 56 km
Ikenohama Miyagi Japan Village - 56 km
Fukkiura Miyagi Japan Village - 56 km
Kodaki Miyagi Japan Village - 56 km
Onagawahama Miyagi Japan Village - 56 km
Takenohama Miyagi Japan Village - 57 km
Aikawa Miyagi Japan Village - 57 km
Terahama Miyagi Japan Village - 57 km
Kitsunezaki Miyagi Japan Village - 58 km
Tsukihama Miyagi Japan Village - 58 km
Tomarihama Miyagi Japan Village - 58 km
Odomari Miyagi Japan Village - 59 km
Nitoda Miyagi Japan Village - 59 km
Natari Miyagi Japan Village - 60 km
Nagatsura Miyagi Japan Village - 61 km
Kotake Miyagi Japan Village - 61 km
Isatomae Miyagi Japan Village - 61 km
Aratohama Miyagi Japan Village - 62 km
Minato Miyagi Japan Village - 62 km
Onagawa Miyagi Japan Village - 63 km
Mizunuma Miyagi Japan Village - 63 km
Watanoha Miyagi Japan Village - 63 km
Shizugawa Miyagi Japan Village - 64 km
Kesaiso Miyagi Japan Village - 64 km
Oritate Miyagi Japan Village - 64 km
Kesennuma Miyagi Japan Village 59000 people 65 km
Sakihama Miyagi Japan Village - 65 km
Aramachi Miyagi Japan Village - 65 km
Oya Miyagi Japan Village - 66 km
Matsuzaki Miyagi Japan Village - 66 km
Inai Miyagi Japan Village - 66 km
Hiraiso Miyagi Japan Village - 66 km
Akuao Miyagi Japan Village - 66 km
Koizumi Miyagi Japan Village - 66 km
Nojiri Miyagi Japan Village - 67 km
Saragai Miyagi Japan Village - 67 km
Motoyoshi Miyagi Japan Village - 67 km
Haraigawa Miyagi Japan Village - 68 km
Uranohama Miyagi Japan Village - 68 km
Higashi-Fukuda Miyagi Japan Village - 68 km
Kagamiishi Miyagi Japan Village - 68 km
Iinogawa Miyagi Japan Village - 69 km
Moto-Funaba Miyagi Japan Village - 69 km
Ishinomaki Miyagi Japan City 120000 people 69 km
Inohana Miyagi Japan Village - 69 km
Kitazawa Miyagi Japan Village - 69 km
Shuku Miyagi Japan Village - 70 km
Tsurugaura 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 76 km

Ports

Name LOCODE Country Distance
Onagawa JPONG Japan 56 km
Ishinomaki JPISM Japan 67 km
Kesennuma Ko Japan 69 km
Ofunato JPOFT Japan 82 km
Shiogama JPSGM Japan 92 km

Dams

Reservoir Dam Name River Year Distance
Naganuma Naganuma Hazamagawa 2005 89 km

Nuclear plants

Name Country Reactors Distance
ONAGAWA JAPAN 3 51 km

More information

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