M 4.5 in Japan from 11 Oct 2009 06:02 UTC to 06:01

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: 4.5M
Depth: 151 Km
Lat/Lon: 36.5 , 139.15
Event Date: 11 Oct 2009 06:01 UTC
11 Oct 2009 15:01 Local
Exposed Population:
19140000 people within 100km
Source: EMSC
Inserted at: 11 Oct 2009 18:46 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
EMSC 0.5 0.5
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
67533 0.5 11 Oct 2009 06:02 4.6M, 95.9km N/A 2.5 million (in 100km) 00:31 NEIC
67547 0.5 11 Oct 2009 06:01 4.5M, 146km N/A 35.5 million (in 100km) 05:05 GEOFON
67556 0.5 11 Oct 2009 06:01 4.5M, 151km N/A 19.1 million (in 100km) 12:45 EMSC
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 Miyosawa, Minowa, Shibukawa, Ichinoseki, Nishibo, Ishii, Maihara, Yamaguchi, Kodama, Komaba, and Nagano.

Radius Population
100 km 20 million people
75 km 7 million people
50 km 2.9 million people
20 km 800000 people
10 km 62000 people
5 km 3300 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Kanto Japan 38.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Miyosawa Gunma Japan Village - 3 km
Minowa Gunma Japan Village - 3 km
Shibukawa Gunma Japan Village 48000 people 3 km
Ichinoseki Gunma Japan Village - 5 km
Nishibo Gunma Japan Village - 7 km
Ishii Gunma Japan Village - 7 km
Maihara Gunma Japan Village - 7 km
Yamaguchi Gunma Japan Village - 7 km
Kodama Gunma Japan Village - 8 km
Komaba Gunma Japan Village - 8 km
Terago Gunma Japan Village - 9 km
Hakoda Gunma Japan Village - 9 km
Higashi Gunma Japan Village - 9 km
Inazato Gunma Japan Village - 9 km
Neko Gunma Japan Village - 9 km
Kami Kamoai Gunma Japan Village - 10 km
Ogo Gunma Japan Village - 10 km
Aramaki Gunma Japan Village - 10 km
Kami-Bosoi Gunma Japan Village - 11 km
Tsukuda Gunma Japan Village - 11 km
Mizunuma Gunma Japan Village - 11 km
Onabuchi Gunma Japan Village - 11 km
Kameizumi Gunma Japan Village - 11 km
Mugikubo Gunma Japan Village - 12 km
Takanosa Gunma Japan Village - 12 km
Tanashita Gunma Japan Village - 12 km
Kanono Gunma Japan Village - 12 km
Nagai Gunma Japan Village - 12 km
Iwamoto Gunma Japan Village - 12 km
Omama Gunma Japan Village - 13 km
Kiribara Gunma Japan Village - 13 km
Tada Gunma Japan Village - 13 km
Nishi-Kunisada Gunma Japan Village - 14 km
Komatsu Gunma Japan Village - 14 km
Oishi Gunma Japan Village - 14 km
Sunagawa Gunma Japan Village - 14 km
Maebashi Gunma Japan Major city 280000 people 14 km
Hanawa Gunma Japan Village - 14 km
Ohata Gunma Japan Village - 15 km
San Shikada Gunma Japan Village - 15 km
Soja Gunma Japan Village - 15 km
Wakubara Gunma Japan Village - 15 km
Negaoka Gunma Japan Village - 16 km
Norainu Gunma Japan Village - 16 km
Ichiba Gunma Japan Village - 16 km
Morishita Gunma Japan Village - 16 km
Yokobor Gunma Japan Village - 16 km
Gorindaira Gunma Japan Village - 16 km
Shimo Arai Gunma Japan Village - 16 km
Moto-Soja Gunma Japan Village - 16 km
Gokan Gunma Japan Village - 16 km
Sayado Gunma Japan Village - 16 km
Oshima Gunma Japan Village - 17 km
Tenjincho Gunma Japan Village - 17 km
Anahara Gunma Japan Village - 17 km
Kaneko Gunma Japan Village - 17 km
Sasao Gunma Japan Village - 17 km
Hiraide Gunma Japan Village - 17 km
Godo Gunma Japan Village - 18 km
Namae Gunma Japan Village - 18 km
Numata Gunma Japan Village 45000 people 18 km
Komagata Gunma Japan Village - 18 km
Takahira Gunma Japan Village - 18 km
Nakashimomachi Gunma Japan Village - 18 km
Maehara Gunma Japan Village - 18 km
Hirobaba Gunma Japan Village - 18 km
Iwamura Gunma Japan Village - 18 km
Nakao Gunma Japan Village - 18 km
Shimafurui Gunma Japan Village - 19 km
Tanakajima Gunma Japan Village - 19 km
Shinden Gunma Japan Village - 19 km
Tamegai Gunma Japan Village - 19 km
Kyome Gunma Japan Village - 19 km
Hodeta Gunma Japan Village - 19 km
Ohara Gunma Japan Village - 20 km
Hakojima Gunma Japan Village - 20 km
Daimon Gunma Japan Village - 20 km
Ohara Gunma Japan Village - 20 km
Okazaki Gunma Japan Village - 20 km
Kiryu Gunma Japan City 120000 people 20 km
Zam Gunma Japan Village - 20 km
Okaya Gunma Japan Village - 20 km
Kozawa Gunma Japan Village - 21 km
Yunakago Gunma Japan Village - 21 km
Shimo-Kusagi Gunma Japan Village - 21 km
Minowa Gunma Japan Village - 21 km
Hodokubo Gunma Japan Village - 21 km
Kami-Kusagi Gunma Japan Village - 21 km
Kami-Fukujima Gunma Japan Village - 22 km
Shimodaki Gunma Japan Village - 22 km
Matsubara Gunma Japan Village - 22 km
Oshita Gunma Japan Village - 22 km
Anagi Gunma Japan Village - 22 km
Kaminohara Gunma Japan Village - 22 km
Nakayama Gunma Japan Village - 22 km
Yanokuchi Gunma Japan Village - 22 km
Shiba Gunma Japan Village - 23 km
Yanaka Gunma Japan Village - 23 km
Takasaki Gunma Japan City 240000 people 23 km
Okkai Gunma Japan Village - 23 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
Shimo Kolzumi 30 0 34 km
Onishi 20 0 42 km
Suzumenomiya 82 0 64 km
Utsunomiya QUT 102 Civ. Paved Yes 5500 64 km
Honda 12 0 67 km
Iruma 91 Mil. Paved Yes 6500 77 km
Chiba-ken 19 0 80 km
Nagano 347 0 85 km
Yokota AFB OKO 139 Mil. Paved Yes 11000 85 km
Otawara 201 0 89 km
Tachikawa 95 0 91 km
Chofu 41 Civ. Paved No 3200 98 km

Dams

Reservoir Dam Name River Year Distance
Makabechoseichi Makabe Tonegawa 1928 9 km
Sonoharako Sonohara Katashinagawa 1965 16 km
Kusakiko Kusaki Watarasegawa 1976 21 km
Narusawako Narusawa Harunashirakawa 1950 22 km
Tanbarako Tanbara Hocchigawa 1981 32 km
Akayako Aimata Akayagawa 1959 33 km
Fujiwarako Fujiwara Tonegawa 1957 35 km
Nyuko Nyu Nyukawa 1952 39 km
Oshioko Oshio Nanmokugawa 1968 39 km
Marunumako Marunuma Otakigawa 1931 40 km
Chuzenjiko Chuzenji Daiyagawa 1998 41 km
Dogenko Sudagai Tonegawa 1955 42 km
Kannako Shimokubo Kannagawa 1968 42 km
Naramatako Naramata Naramatagawa 1990 43 km
Okutoneko Yagisawa Tonegawa 1967 47 km
Nozoriko Nozori Nakatsugawa 1956 52 km
Kawamatako Kawamata Kinugawa 1966 53 km
Yanakako Wataraseyusuichi Watarasegawa 1989 58 km
Kurobe Kurobe Kinugawa 1912 58 km
Imaichichoseichi Imaichi Togawa 1988 59 km
Kuriyamachoseichi Kuriyama Nebesawagawa 1988 60 km
Tashiroko Kazawa Agatsumagawa 1927 61 km
Otsumata Otsumata Otsumatagawa 1968 62 km
Shakunageko Sagurigawa Sagurigawa 1993 63 km
Yashioko Kawaji Kunugawa 1983 66 km
Chichibuko Futase Arakawa 1961 66 km
Miyukiko Gongendochosetsuchi Nakagawa 1991 66 km
Ikariko Ikari Ojikagawa 1956 67 km
Higashikoyako Nishiarakawa Nishiarakawa 1967 68 km
Naguriko Arima Arimagawa 1985 70 km
Miyazawako Miyazawatameike Koazegawa 1941 71 km
Sugadairako Sugadaira Kangawa 1968 72 km
Ginzanko Okutadami Tadamigawa 1960 73 km
Terayama Terayama Miyakawa 1984 75 km
Okutamako Ogohchi Tamagawa 1957 79 km
Hiroseko Hirose Fuefukigawa 1974 81 km
Shiobara Shiobara Hokigawa 1978 83 km
Sayamako Yamaguchi Tamagawa 2002 83 km
Sabigawa Sabigawa Sabigawa 1994 84 km
Tamako Murayamakami Tamagawa 1924 85 km
Tamako Murayamashimo Tamagawa 2008 85 km
Kuromatagawadaini Kuromatagawadaini Kuromatagawa 1964 86 km
Tagokurako Tagokura Tadamigawa 1959 91 km
Kuromatagawadaiichi Kuromatagawadaiichi Kuromatagawa 1958 91 km
Tadamiko Tadami Tadamigawa 1989 94 km
Miyamako Miyama Nakagawa 1973 94 km
Aburumagawa Aburumagawa Aburumagawa 1986 94 km
Nosenko Arakawa Arakawa 1985 97 km
Ono Ono Yatagawa 1914 98 km
Sagamiko Sagami Sagamigawa 1947 98 km

More information

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