M 5.5 in Japan from 10 Oct 2011 02:45 UTC to 02:45

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: 5.5M
Depth: 30.2 Km
Lat/Lon: 37.5413 , 141.249
Event Date: 10 Oct 2011 02:45 UTC
10 Oct 2011 11:45 Local
Exposed Population:
2834414 people within 100km
Source: NEIC usc00066sj
Inserted at: 10 Oct 2011 03:01 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc00066sj 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
112118 0.5 10 Oct 2011 02:45 5.5M, 30.2km N/A 2.8 million (in 100km) 00:15 NEIC
112121 0.6 10 Oct 2011 02:45 5.7M, 43.8km N/A 3.1 million (in 100km) 02:17 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 Onaba, Kiyohashi, Namie, Futaba, Kayahama, Odaka, Onoda, Kariyado, Takahira, Nakanouchi, and Sendai.

Radius Population
100 km 3.3 million people
75 km 1.1 million people
50 km 130000 people
20 km <1000 people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Tohoku Japan 10 million people

Affected populated places

Name Region Province Country City class Population Distance
Onaba Fukushima Japan Village - 21 km
Kiyohashi Fukushima Japan Village - 21 km
Namie Fukushima Japan Village 22000 people 23 km
Futaba Fukushima Japan Village - 23 km
Kayahama Fukushima Japan Village - 23 km
Odaka Fukushima Japan Village - 23 km
Onoda Fukushima Japan Village - 25 km
Kariyado Fukushima Japan Village - 26 km
Takahira Fukushima Japan Village - 26 km
Nakanouchi Fukushima Japan Village - 27 km
Oragahama Fukushima Japan Village - 27 km
Minami-Ibi Fukushima Japan Village - 28 km
Haramachi Fukushima Japan Village 47000 people 29 km
Okuma Fukushima Japan Village - 29 km
Kashima Fukushima Japan Village - 30 km
Bogoya Fukushima Japan Village - 30 km
Kita-Nagano Fukushima Japan Village - 31 km
Ogawara Fukushima Japan Village - 31 km
Takatsudo Fukushima Japan Village - 31 km
Tomioka Fukushima Japan Village - 31 km
Sekimori Fukushima Japan Village - 31 km
Tetsuzan Fukushima Japan Village - 32 km
Koyamada Fukushima Japan Village - 33 km
Isobe Fukushima Japan Village - 34 km
Hirusone Fukushima Japan Village - 34 km
Kami-Shigeoka Fukushima Japan Village - 35 km
Kodeya Fukushima Japan Village - 35 km
Shajigami Fukushima Japan Village - 36 km
Oyama Fukushima Japan Village - 36 km
Ide Fukushima Japan Village - 36 km
Suketsune Fukushima Japan Village - 36 km
Tachiya Fukushima Japan Village - 36 km
Naraha Fukushima Japan Village - 36 km
Umekawa Fukushima Japan Village - 37 km
Gomaisawa Fukushima Japan Village - 38 km
Kunugidaira Fukushima Japan Village - 38 km
Kashiwabara Fukushima Japan Village - 38 km
Ohana Fukushima Japan Village - 38 km
Jikenjo Fukushima Japan Village - 40 km
Nakumura Fukushima Japan Village - 40 km
Hiso Fukushima Japan Village - 40 km
Haragama Fukushima Japan Village - 41 km
Shimo-Kitabo Fukushima Japan Village - 41 km
Furumichi Fukushima Japan Village - 42 km
Otojiro Fukushima Japan Village - 43 km
Okubo Fukushima Japan Village - 43 km
Ochiai Fukushima Japan Village - 43 km
Kuroki Fukushima Japan Village - 43 km
Kami-Asamigawa Fukushima Japan Village - 43 km
Shimo-Kawauchi Fukushima Japan Village - 43 km
Shimo-Tsushima Fukushima Japan Village - 44 km
Ashimata Fukushima Japan Village - 44 km
Komiya Fukushima Japan Village - 44 km
Odashiro Fukushima Japan Village - 44 km
Otsubo Fukushima Japan Village - 44 km
Komagamine Fukushima Japan Village - 45 km
Nagadoro Fukushima Japan Village - 45 km
Kami-Kawauchi Fukushima Japan Village - 45 km
Hokidaira Fukushima Japan Village - 45 km
Sakashiuchi Fukushima Japan Village - 45 km
Uzugawa Fukushima Japan Village - 46 km
Iwaisawa Fukushima Japan Village - 46 km
Tsurishi Fukushima Japan Village - 46 km
Kusano Fukushima Japan Village - 46 km
Sugaya Fukushima Japan Village - 47 km
Takadaiima Fukushima Japan Village - 47 km
Arayashik Fukushima Japan Village - 48 km
Iso Miyagi Japan Village - 49 km
Yokomichi Fukushima Japan Village - 49 km
Tsunagi Fukushima Japan Village - 49 km
Iitoi Fukushima Japan Village - 49 km
Yotsukura Fukushima Japan Village - 49 km
Sakamoto Miyagi Japan Village - 51 km
Dozan Fukushima Japan Village - 51 km
Tonyamae Fukushima Japan Village - 51 km
Usuishi Fukushima Japan Village - 51 km
Yanagiwatado Fukushima Japan Village - 51 km
Ouchi Miyagi Japan Village - 51 km
Higashi-tamano Fukushima Japan Village - 52 km
Shidamyo Fukushima Japan Village - 52 km
Nekeshi Fukushima Japan Village - 53 km
Nimaibashi Fukushima Japan Village - 53 km
Maeda Fukushima Japan Village - 53 km
Ojiro Fukushima Japan Village - 54 km
Tokiwa Fukushima Japan Village - 54 km
Eda Fukushima Japan Village - 55 km
Wada Miyagi Japan Village - 55 km
Domeki Fukushima Japan Village - 56 km
Hanagama Miyagi Japan Village - 56 km
Kanayama Miyagi Japan Village - 56 km
Kasano Miyagi Japan Village - 56 km
Omori Fukushima Japan Village - 57 km
Nishimuki Fukushima Japan Village - 57 km
Nakayama Fukushima Japan Village - 57 km
Shiroishi Fukushima Japan Village - 57 km
Sawa Fukushima Japan Village - 57 km
Ishisawa Fukushima Japan Village - 57 km
Shimo-Ogoe Fukushima Japan Village - 57 km
Kami-Okeuri Fukushima Japan Village - 57 km
Mokushouchi Fukushima Japan Village - 57 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
Sendai SDJ 5 Civ. Paved Yes 9800 73 km
Fukushima FKS 372 Civ. Paved Yes 8200 81 km
Kasuminome 5 0 82 km
Matsushima 2 Civ. Paved Yes 8800 96 km

Ports

Name LOCODE Country Distance
Soma JPSMA Japan 41 km
Onahama JPONA Japan 73 km
Shiogama JPSGM Japan 89 km
Ishinomaki JPISM Japan 97 km

Dams

Reservoir Dam Name River Year Distance
Yokokawa Yokokawa Otagawa 1983 31 km
Sakashita Sakashita Okawaragawa 1973 32 km
Ogaki Ogaki Ukedogawa 1985 32 km
Takanokura Takanokura Mizunashigawa 1975 33 km
Tamanotameike Tamano Udagawa 1945 52 km
Bobatako Sengozawa Kitasugawa 1974 78 km
Takashibako Takashiba Samekawa 1961 79 km
Tarumizuko Tarumizu Masudagawa 1976 79 km
1991 80 km
Kawarago Kawarago Shiroishigawa 1968 84 km
Shitokiko Shitoki Shitokigawa 1983 85 km
Kamafusako Kamafusa Goishigawa 1970 88 km
Fukadachoseichi Fukadachoseichi Tadanogawa 1982 90 km
Mizunuma Mizunuma Hanazonokawa 1966 92 km
Fujinumachosuichi Fujimuna Ebanagawa 1948 97 km
Okurako Okura Okuragawa 1961 99 km

Nuclear plants

Name Country Reactors Distance
FUKUSHIMA-DAIICHI JAPAN 6 24 km
FUKUSHIMA-DAINI JAPAN 4 31 km
ONAGAWA JAPAN 3 98 km

More information

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