M 4.9 in Japan on 23 Nov 2012 15:51 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: 4.9M
Depth: 57.6 Km
Lat/Lon: 36.0292 , 139.839
Event Date: 23 Nov 2012 15:51 UTC
24 Nov 2012 00:51 Local
Exposed Population:
39950000 people within 100km
Source: NEIC usc000dxdq
Inserted at: 23 Nov 2012 16:20 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc000dxdq 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
121027 0.5 23 Nov 2012 15:51 4.9M, 57.6km N/A 40 million (in 100km) 00:28 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 Kanto (population 38,543,000) . The nearest places are Hoshubana, Hojubana, Oyama, Matate, Oigo, Toshima, Sekiyado, Sakai, Noda, Kutsukake, and Maebashi.

Radius Population
100 km 41.4 million people
75 km 36.1 million people
50 km 22.9 million people
20 km 2.1 million people
10 km 350000 people
5 km 57000 people
2 km 13000 people

Affected Provinces

Region Province Country Population
Kanto Japan 38.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Hoshubana Chiba Japan Village - 1 km
Hojubana Saitama Japan Village - 3 km
Oyama Ibaraki Japan Village - 4 km
Matate Ibaraki Japan Village - 7 km
Oigo Ibaraki Japan Village - 8 km
Toshima Saitama Japan Village - 8 km
Sekiyado Chiba Japan Village 30000 people 8 km
Sakai Ibaraki Japan Village 26000 people 9 km
Noda Chiba Japan City 120000 people 10 km
Kutsukake Ibaraki Japan Village - 12 km
Doyobu Ibaraki Japan Village - 12 km
Saheita-Shinden Ibaraki Japan Village - 12 km
Tsukazaki Ibaraki Japan Village - 12 km
Numakage Ibaraki Japan Village - 14 km
Goka Ibaraki Japan Village - 14 km
Hiratsuka Ibaraki Japan Village - 15 km
Ishige Ibaraki Japan Village 25000 people 15 km
Onna Ibaraki Japan Village - 15 km
Kuki Saitama Japan Village 72000 people 15 km
Yoshikawa Saitama Japan Village 60000 people 16 km
Kami-Naganuma Ibaraki Japan Village - 16 km
Uruido Saitama Japan Village - 16 km
Shimana Ibaraki Japan Village - 17 km
Kurihashi Saitama Japan Village 28000 people 17 km
Hinokuchi Saitama Japan Village - 17 km
Nire Ibaraki Japan Village - 17 km
Obari Ibaraki Japan Village - 18 km
Kamigo Ibaraki Japan Village - 18 km
Sairaoka Saitama Japan Village - 18 km
Zodo Ibaraki Japan Village - 18 km
Suginoya Ibaraki Japan Village - 19 km
Narita-Shinden Ibaraki Japan Village - 19 km
Morokawa Ibaraki Japan Village - 19 km
Shimotsuma Ibaraki Japan Village 37000 people 20 km
Kita-Hirano Saitama Japan Village - 21 km
Kozutsumi Ibaraki Japan Village - 21 km
Yoshinuma Ibaraki Japan Village - 21 km
Shinjuku-Shinden Ibaraki Japan Village - 21 km
Yatabe Ibaraki Japan Village - 21 km
Washimiya Saitama Japan Village 34000 people 21 km
Konosu Saitama Japan Village 82000 people 21 km
Kami-Wada Ibaraki Japan Village - 21 km
Shobu Saitama Japan Village - 22 km
Koga Ibaraki Japan City 57000 people 22 km
Honden Saitama Japan Village - 22 km
Kobari-Shinjika Saitama Japan Village - 22 km
Omuro Saitama Japan Village - 23 km
Kurokoma Ibaraki Japan Village - 23 km
Omiya Saitama Japan City 440000 people 23 km
Hinosawa Ibaraki Japan Village - 24 km
Takasai Ibaraki Japan Village - 24 km
Nogi Tochigi Japan Village 27000 people 24 km
Takei Ibaraki Japan Village - 24 km
Minami-Izumi Tochigi Japan Village - 24 km
Kami-aoki Saitama Japan Village - 24 km
Emura Ibaraki Japan Village - 24 km
Abiko Chiba Japan City 130000 people 25 km
Fujishiro Ibaraki Japan Village 33000 people 25 km
Kami-Hirooka Ibaraki Japan Village - 25 km
Kishai Saitama Japan Village - 25 km
Sekimoto Ibaraki Japan Village - 25 km
Wakayagi Ibaraki Japan Village - 26 km
Ozone Ibaraki Japan Village - 26 km
Yagyu Saitama Japan Village - 26 km
Horage Ibaraki Japan Village - 27 km
Mitagaya Saitama Japan Village - 27 km
Sakunoya Ibaraki Japan Village - 27 km
Kami-Namai Tochigi Japan Village - 27 km
Mamada Tochigi Japan Village - 27 km
Kurogo Ibaraki Japan Village - 28 km
Ushiku Ibaraki Japan Village 79000 people 28 km
Hojo Ibaraki Japan Village - 28 km
Arai Saitama Japan Village - 28 km
Togawa Saitama Japan Village - 28 km
Kanokubo Ibaraki Japan Village - 28 km
Hirakata Saitama Japan Village - 28 km
Amagaya Tochigi Japan Village - 28 km
Oda Ibaraki Japan Village - 28 km
Sakura Ibaraki Japan Village - 28 km
Higashi-Hozui Ibaraki Japan Village - 29 km
Itakura Gunma Japan Village - 29 km
Arakawa-Oki Ibaraki Japan Village - 29 km
Matsudo Chiba Japan City 460000 people 29 km
Sukage Saitama Japan Village - 29 km
Shimo-Nodono Ibaraki Japan Village - 30 km
Kami-Oshima Ibaraki Japan Village - 30 km
Hirunuma Tochigi Japan Village - 30 km
Ebigashima Ibaraki Japan Village - 30 km
Fujioka Tochigi Japan Village 18000 people 30 km
Ichiba Saitama Japan Village - 31 km
Fujisawa Ibaraki Japan Village - 31 km
Sunayama Saitama Japan Village - 31 km
Jikkoku Ibaraki Japan Village - 31 km
Tsukuba Ibaraki Japan City 180000 people 32 km
Sawabe Ibaraki Japan Village - 32 km
Oyama Tochigi Japan City 150000 people 32 km
Ikku Ibaraki Japan Village - 32 km
Wakaguri Ibaraki Japan Village - 32 km
Koike Tochigi Japan Village - 32 km
Mizukake Tochigi Japan Village - 33 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
Chiba-ken 19 0 4 km
Honda 12 0 29 km
Shimofusa 30 Civ. Paved Yes 7300 30 km
26 0 32 km
Ryugasaki 2 0 39 km
Onishi 20 0 39 km
Ryugasaki South 2 0 40 km
Iruma 91 Mil. Paved Yes 6500 44 km
Shimo Kolzumi 30 0 48 km
Chofu 41 Civ. Paved No 3200 49 km
Suzumenomiya 82 0 49 km
Shimoshizu 30 0 51 km
Tokyo Haneda International HND 7 Civ. Paved Yes 9800 53 km
Tachikawa 95 0 54 km
Utsunomiya QUT 102 Civ. Paved Yes 5500 54 km
Yokota AFB OKO 139 Mil. Paved Yes 11000 54 km
Hyakuri 32 Mil. Paved Yes 8800 55 km
Tokyo Narita International NRT 42 Civ. Paved Yes 13100 57 km
Yokohama YOK unknown 0 65 km
Katsner AAF 109 Civ. Paved No 1900 70 km
Kisarazu 3 Mil. Paved Yes 6000 70 km
Atsugi NJA 62 Mil. Paved Yes 7900 73 km
Otawara 201 0 94 km

Ports

Name LOCODE Country Distance
Tokyo JPTYO Japan 36 km
Ogasawara JPOGA Japan 39 km
Katunan Ko Japan 42 km
Anegasaki JPANE Japan 53 km
Chiba JPCHB Japan 54 km
Kawasaki JPKWS Japan 56 km
Goi JPGOI Japan 60 km
Yokohama JPYOK Japan 66 km
Kisarazu JPKZU Japan 72 km
Neghisi JPNGI Japan 72 km
Kashima JPKSM Japan 79 km
Yokosuka JPYOS Japan 84 km
Hitachi JPHTC Japan 88 km
Kurihama JPKRH Japan 92 km
Choshi JPCHO Japan 95 km

Dams

Reservoir Dam Name River Year Distance
Miyukiko Gongendochosetsuchi Nakagawa 1991 15 km
Yanakako Wataraseyusuichi Watarasegawa 1989 24 km
Tamako Murayamashimo Tamagawa 2008 47 km
Sayamako Yamaguchi Tamagawa 2002 47 km
Tamako Murayamakami Tamagawa 1924 48 km
Miyazawako Miyazawatameike Koazegawa 1941 49 km
Kasumigaura Kasumigaura-Kaihatsu Tonegawa 1995 61 km
Naguriko Arima Arimagawa 1985 62 km
Yamakura Yamakura Yamakuragawa 1964 66 km
Jajanboike Kozogawa Kozogawa 1985 66 km
Tsukuiko Shiroyama Sagamigawa 1964 70 km
Kusakiko Kusaki Watarasegawa 1976 71 km
Sagamiko Sagami Sagamigawa 1947 74 km
Kannako Shimokubo Kannagawa 1968 75 km
Okutamako Ogohchi Tamagawa 1957 76 km
Miyagaseko Miyagase Nakatsugawa 2001 76 km
Takatakiko Takataki Yorogawa 1990 80 km
Kori Kori Korigawa 1972 82 km
Ono Ono Yatagawa 1914 84 km
Chuzenjiko Chuzenji Daiyagawa 1998 85 km
Chichibuko Futase Arakawa 1961 85 km
Makabechoseichi Makabe Tonegawa 1928 88 km
Higashikoyako Nishiarakawa Nishiarakawa 1967 88 km
Oshioko Oshio Nanmokugawa 1968 89 km
Narusawako Narusawa Harunashirakawa 1950 90 km
Imaichichoseichi Imaichi Togawa 1988 90 km
Sonoharako Sonohara Katashinagawa 1965 90 km
Terayama Terayama Miyakawa 1984 91 km
Kameyamako Kameyama Obitsugawa 1980 91 km
Kuriyamachoseichi Kuriyama Nebesawagawa 1988 93 km
Nyuko Nyu Nyukawa 1952 94 km
Kurobe Kurobe Kinugawa 1912 95 km
Yashioko Kawaji Kunugawa 1983 97 km
Ikariko Ikari Ojikagawa 1956 98 km
Kawamatako Kawamata Kinugawa 1966 99 km
Marunumako Marunuma Otakigawa 1931 99 km
Hiroseko Hirose Fuefukigawa 1974 99 km
Tanzawako Miho Kawauchigawa 1978 100 km

Nuclear plants

Name Country Reactors Distance
TOKAI JAPAN 3 84 km

More information

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