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: Km
Lat/Lon: 36.27 , 139.3
Event Date: 11 Oct 2009 06:01 UTC
11 Oct 2009 15:01 Local
Exposed Population:
35450000 people within 100km
Source: GEOFON
Inserted at: 11 Oct 2009 11:07 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
GEOFON 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 Kizaki, Otate, Ojima, Kami-Eda, Kanai, Shingai, Hosoya, Fuchina, Menuma, Takahata, and Mito.

Radius Population
100 km 37 million people
75 km 20.7 million people
50 km 6.3 million people
20 km 1.5 million people
10 km 400000 people
5 km 77000 people
2 km 12000 people

Affected Provinces

Region Province Country Population
Kanto Japan 38.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Kizaki Gunma Japan Village - 1 km
Otate Gunma Japan Village - 2 km
Ojima Gunma Japan Village - 3 km
Kami-Eda Gunma Japan Village - 3 km
Kanai Gunma Japan Village - 4 km
Shingai Saitama Japan Village - 4 km
Hosoya Gunma Japan Village - 5 km
Fuchina Gunma Japan Village - 6 km
Menuma Saitama Japan Village 27000 people 6 km
Takahata Saitama Japan Village - 7 km
Isezaki Gunma Japan City - 7 km
Naritsuka Gunma Japan Village - 7 km
Ota Gunma Japan Village - 7 km
Mamizuka Gunma Japan Village - 8 km
Miyado Saitama Japan Village - 8 km
Maegawara Gunma Japan Village - 8 km
Kumagaya Saitama Japan City 150000 people 9 km
Ippongi Saitama Japan Village - 9 km
Oshita Gunma Japan Village - 9 km
Tanaka Saitama Japan Village - 9 km
Ohara Gunma Japan Village - 10 km
Oka-Shinden Saitama Japan Village - 10 km
Tamegai Gunma Japan Village - 10 km
Kokai Gunma Japan Village - 10 km
Yattajima Gunma Japan Village - 10 km
Shimo-Kobayashi Gunma Japan Village - 10 km
Kodai Saitama Japan Village - 10 km
Yamagawa Saitama Japan Village - 10 km
Honjo Saitama Japan City 61000 people 11 km
Wada Saitama Japan Village - 11 km
Shiba Gunma Japan Village - 11 km
Shimo Saitama Japan Village - 11 km
Nakashimomachi Gunma Japan Village - 12 km
Yaokasa Gunma Japan Village - 12 km
Kunugi Saitama Japan Village - 12 km
Harigaya Saitama Japan Village - 12 km
Omachi Gunma Japan Village - 12 km
Kidabori Saitama Japan Village - 13 km
Kami-Fukujima Gunma Japan Village - 13 km
Oaso Saitama Japan Village - 13 km
Ichiba Gunma Japan Village - 13 km
Ishiuchi Gunma Japan Village - 13 km
Nishinokato Saitama Japan Village - 14 km
Hajika Tochigi Japan Village - 14 km
Kami Chujo Saitama Japan Village - 14 km
Numagami Saitama Japan Village - 14 km
Nima Saitama Japan Village - 14 km
Shiku Tochigi Japan Village - 14 km
Mikuraya Tochigi Japan Village - 14 km
Akaiwa Saitama Japan Village - 14 km
Nigorima Tochigi Japan Village - 14 km
Shuku Saitama Japan Village - 14 km
San Shikada Gunma Japan Village - 15 km
Ninomachi Saitama Japan Village - 15 km
Tanakajima Gunma Japan Village - 15 km
Kubo-Shinden Saitama Japan Village - 15 km
Mujinazuka Gunma Japan Village - 15 km
Kiryu Gunma Japan City 120000 people 15 km
Nishi-Kunisada Gunma Japan Village - 16 km
Shimmachi Gunma Japan Village - 16 km
Honda Saitama Japan Village - 16 km
Tada Gunma Japan Village - 16 km
Ashikaga Tochigi Japan City 160000 people 16 km
Kawai Gunma Japan Village - 16 km
Hirukawa Saitama Japan Village - 16 km
Kodama Saitama Japan Village - 17 km
Inomata Saitama Japan Village - 17 km
Wada Saitama Japan Village - 17 km
Tategase Saitama Japan Village - 17 km
Morido Tochigi Japan Village - 18 km
Shiroishi Saitama Japan Village - 18 km
Shinden Gunma Japan Village - 18 km
Magechi Saitama Japan Village - 18 km
Hatakeyama Saitama Japan Village - 18 km
Onabuchi Gunma Japan Village - 18 km
Shiken-Zaike Saitama Japan Village - 18 km
Hinata Gunma Japan Village - 18 km
Futo Saitama Japan Village - 18 km
Komaginu Saitama Japan Village - 18 km
Imaichi Saitama Japan Village - 18 km
Muraoka Saitama Japan Village - 18 km
Kiribara Gunma Japan Village - 18 km
Tenjincho Gunma Japan Village - 18 km
Omama Gunma Japan Village - 19 km
Kawasaki Tochigi Japan Village - 19 km
Daimon Gunma Japan Village - 19 km
One Saitama Japan Village - 19 km
Inazato Gunma Japan Village - 19 km
Komagata Gunma Japan Village - 20 km
Kameizumi Gunma Japan Village - 20 km
Machibune Tochigi Japan Village - 20 km
Yakuoji Saitama Japan Village - 20 km
Ogo Gunma Japan Village - 20 km
Uenohara Saitama Japan Village - 20 km
Gokan Gunma Japan Village - 20 km
Aoyagi Gunma Japan Village - 20 km
Mazaka Tochigi Japan Village - 20 km
Nomasu Saitama Japan Village - 21 km
Shimodaki Gunma Japan Village - 21 km
Ozanuki Gunma Japan Village - 21 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 9 km
Onishi 20 0 17 km
Honda 12 0 38 km
Iruma 91 Mil. Paved Yes 6500 49 km
Chiba-ken 19 0 54 km
Suzumenomiya 82 0 55 km
Utsunomiya QUT 102 Civ. Paved Yes 5500 58 km
Yokota AFB OKO 139 Mil. Paved Yes 11000 58 km
Tachikawa 95 0 63 km
Chofu 41 Civ. Paved No 3200 70 km
Shimofusa 30 Civ. Paved Yes 7300 83 km
26 0 84 km
Katsner AAF 109 Civ. Paved No 1900 84 km
Tokyo Haneda International HND 7 Civ. Paved Yes 9800 91 km
Atsugi NJA 62 Mil. Paved Yes 7900 91 km
Otawara 201 0 93 km
Ryugasaki 2 0 94 km
Yokohama YOK unknown 0 94 km
Ryugasaki South 2 0 95 km
313 0 99 km

Ports

Name LOCODE Country Distance
Tokyo JPTYO Japan 74 km
Ogasawara JPOGA Japan 79 km
Katunan Ko Japan 90 km
Kawasaki JPKWS Japan 92 km
Yokohama JPYOK Japan 96 km

Dams

Reservoir Dam Name River Year Distance
Kannako Shimokubo Kannagawa 1968 30 km
Kusakiko Kusaki Watarasegawa 1976 31 km
Makabechoseichi Makabe Tonegawa 1928 33 km
Narusawako Narusawa Harunashirakawa 1950 35 km
Yanakako Wataraseyusuichi Watarasegawa 1989 35 km
Oshioko Oshio Nanmokugawa 1968 38 km
Miyukiko Gongendochosetsuchi Nakagawa 1991 41 km
Nyuko Nyu Nyukawa 1952 42 km
Sonoharako Sonohara Katashinagawa 1965 43 km
Miyazawako Miyazawatameike Koazegawa 1941 44 km
Naguriko Arima Arimagawa 1985 45 km
Chichibuko Futase Arakawa 1961 51 km
Chuzenjiko Chuzenji Daiyagawa 1998 55 km
Sayamako Yamaguchi Tamagawa 2002 55 km
Tamako Murayamakami Tamagawa 1924 57 km
Tamako Murayamashimo Tamagawa 2008 57 km
Okutamako Ogohchi Tamagawa 1957 58 km
Tanbarako Tanbara Hocchigawa 1981 60 km
Akayako Aimata Akayagawa 1959 62 km
Marunumako Marunuma Otakigawa 1931 62 km
Fujiwarako Fujiwara Tonegawa 1957 64 km
Hiroseko Hirose Fuefukigawa 1974 68 km
Imaichichoseichi Imaichi Togawa 1988 70 km
Dogenko Sudagai Tonegawa 1955 70 km
Kawamatako Kawamata Kinugawa 1966 70 km
Naramatako Naramata Naramatagawa 1990 71 km
Kurobe Kurobe Kinugawa 1912 72 km
Kuriyamachoseichi Kuriyama Nebesawagawa 1988 72 km
Sagamiko Sagami Sagamigawa 1947 73 km
Okutoneko Yagisawa Tonegawa 1967 75 km
Ono Ono Yatagawa 1914 75 km
Tsukuiko Shiroyama Sagamigawa 1964 76 km
Higashikoyako Nishiarakawa Nishiarakawa 1967 76 km
Nozoriko Nozori Nakatsugawa 1956 77 km
Tashiroko Kazawa Agatsumagawa 1927 78 km
Yashioko Kawaji Kunugawa 1983 78 km
Ikariko Ikari Ojikagawa 1956 79 km
Miyagaseko Miyagase Nakatsugawa 2001 81 km
Terayama Terayama Miyakawa 1984 82 km
Otsumata Otsumata Otsumatagawa 1968 86 km
Nosenko Arakawa Arakawa 1985 86 km
Sugadairako Sugadaira Kangawa 1968 90 km
Shakunageko Sagurigawa Sagurigawa 1993 91 km
Chiyodako Maruyamatameike Obinagawa 1936 92 km
Shiobara Shiobara Hokigawa 1978 92 km
Sabigawa Sabigawa Sabigawa 1994 95 km
Ginzanko Okutadami Tadamigawa 1960 98 km
Tanzawako Miho Kawauchigawa 1978 98 km
Jajanboike Kozogawa Kozogawa 1985 100 km

More information

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