M 4.8 in Japan on 06 Dec 2012 20:32 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: 4.8M
Depth: 66.9 Km
Lat/Lon: 35.5614 , 140.083
Event Date: 06 Dec 2012 20:32 UTC
07 Dec 2012 05:32 Local
Exposed Population:
36060000 people within 100km
Source: NEIC usc000e5ex
Inserted at: 06 Dec 2012 22:17 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc000e5ex 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
121303 0.5 06 Dec 2012 20:32 4.8M, 66.9km N/A 36.1 million (in 100km) 01:45 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 Goi, Chiba, Anegasaki, Ushiku, Oami, Chonan, Funabashi, Mobara, Sakura, Kisarazu, and Mito.

Radius Population
100 km 36.6 million people
75 km 29 million people
50 km 13 million people
20 km 1.7 million people
10 km 550000 people
5 km 140000 people
2 km 23000 people

Affected Provinces

Region Province Country Population
Kanto Japan 38.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Goi Chiba Japan Village - 2 km
Chiba Chiba Japan Major city 920000 people 7 km
Anegasaki Chiba Japan Village - 11 km
Ushiku Chiba Japan Village - 16 km
Oami Chiba Japan Village - 19 km
Chonan Chiba Japan Village - 20 km
Funabashi Chiba Japan City 560000 people 21 km
Mobara Chiba Japan City 96000 people 22 km
Sakura Chiba Japan City 180000 people 23 km
Kisarazu Chiba Japan City 120000 people 23 km
Togane Chiba Japan Village 55000 people 25 km
Kamagaya Chiba Japan City 110000 people 26 km
Ichikawa Chiba Japan City 460000 people 26 km
Chiba-nyutaun Chiba Japan Village - 27 km
Kururi Chiba Japan Village - 28 km
Naruto Chiba Japan City 22000 people 28 km
Tokyo Tokyo Japan Capital 8.1 million people 30 km
Ichinomiya Chiba Japan Village - 30 km
Katakai Chiba Japan City - 31 km
Matsudo Chiba Japan City 460000 people 31 km
Kimitsu Chiba Japan Village 92000 people 32 km
Omori Chiba Japan Village - 32 km
Narita Chiba Japan City 100000 people 33 km
Fujioayashi Chiba Japan Village - 35 km
Hasunuma Chiba Japan Village - 35 km
Yokoshiba Chiba Japan Village - 36 km
Ryugasaki Chiba Japan Village 85000 people 36 km
Fukawa Ibaraki Japan Village - 36 km
Golanda Tokyo Japan Village - 37 km
Futtso Chiba Japan Village - 37 km
Kawasaki Kanagawa Japan Major city 1.3 million people 37 km
Abiko Chiba Japan City 130000 people 38 km
Tako Chiba Japan City - 39 km
Minato Chiba Japan Village - 41 km
Ino Chiba Japan Village - 41 km
Namegawa Chiba Japan Village - 41 km
Ryugaski Ibaraki Japan Village - 42 km
Ohara Chiba Japan City 20000 people 42 km
Fujishiro Ibaraki Japan Village 33000 people 44 km
Yokohama Kanagawa Japan Major city 3.6 million people 45 km
Asagaya Tokyo Japan Village - 45 km
Yoshikawa Saitama Japan Village 60000 people 45 km
Katsuura Chiba Japan Village 22000 people 47 km
Kobata Chiba Japan Village - 47 km
Ushiku Ibaraki Japan Village 79000 people 47 km
Kamogawa Chiba Japan Village 29000 people 48 km
Kansaki Chiba Japan Village - 48 km
Kami-aoki Saitama Japan Village - 48 km
Obari Ibaraki Japan Village - 49 km
Edosaki Ibaraki Japan Village 21000 people 50 km
Noda Chiba Japan City 120000 people 50 km
Yokosuka Kanagawa Japan City 420000 people 50 km
Jikkoku Ibaraki Japan Village - 51 km
Koda Ibaraki Japan Village - 52 km
Chofu Tokyo Japan City 200000 people 52 km
Wakaguri Ibaraki Japan Village - 52 km
Kami-Naganuma Ibaraki Japan Village - 53 km
Hinosawa Ibaraki Japan Village - 53 km
Asahi Yokaichiba Chiba Japan Village - 53 km
Yatabe Ibaraki Japan Village - 54 km
Ikku Ibaraki Japan Village - 55 km
Arakawa-Oki Ibaraki Japan Village - 55 km
Katayama Saitama Japan Village - 55 km
Katsuyama Chiba Japan Village - 55 km
Kihara Ibaraki Japan Village - 56 km
Kamakura Kanagawa Japan City 160000 people 56 km
Wada Chiba Japan Village - 56 km
Oyama Ibaraki Japan Village - 57 km
Kanioshioacho Kanagawa Japan Village - 57 km
Oyama Ibaraki Japan Village - 57 km
Yaida Ibaraki Japan Village - 57 km
Tsotuma K Tokyo Japan Village - 57 km
Hayama Kanagawa Japan Village 31000 people 57 km
Omigawa Chiba Japan City 25000 people 57 km
Minami Yamato Kanagawa Japan Village - 57 km
Naka-Wada Kanagawa Japan Village - 58 km
Hikago Kanagawa Japan Village - 59 km
Kami-Hirooka Ibaraki Japan Village - 59 km
Bessho Kanagawa Japan Village - 59 km
Shimana Ibaraki Japan Village - 59 km
Okura Tokyo Japan Village - 59 km
Idako Ibaraki Japan Village - 59 km
Chogo Kanagawa Japan Village - 59 km
Sagami Ono Kanagawa Japan Village - 60 km
Yabuhana Kanagawa Japan Village - 60 km
Ochikawa Tokyo Japan Village - 60 km
Hojubana Saitama Japan Village - 60 km
Itako Ibaraki Japan Village 25000 people 60 km
Hoshubana Chiba Japan Village - 60 km
Goka Ibaraki Japan Village - 60 km
Kodaira Tokyo Japan City 190000 people 60 km
Sakihama Ibaraki Japan Village - 60 km
Omiya Saitama Japan City 440000 people 60 km
Shimo-Yabe Tokyo Japan Village - 61 km
Kokubunai Tokyo Japan Village - 61 km
Matate Ibaraki Japan Village - 61 km
Ochiai Kanagawa Japan Village - 62 km
Aso Ibaraki Japan Village - 62 km
Nozuta Tokyo Japan Village - 62 km
Fukaya Kanagawa Japan Village - 62 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
Shimoshizu 30 0 13 km
Kisarazu 3 Mil. Paved Yes 6000 24 km
Tokyo Haneda International HND 7 Civ. Paved Yes 9800 30 km
Shimofusa 30 Civ. Paved Yes 7300 30 km
Tokyo Narita International NRT 42 Civ. Paved Yes 13100 35 km
Ryugasaki South 2 0 38 km
Ryugasaki 2 0 43 km
Yokohama YOK unknown 0 44 km
Chofu 41 Civ. Paved No 3200 55 km
26 0 56 km
Chiba-ken 19 0 59 km
Atsugi NJA 62 Mil. Paved Yes 7900 61 km
Katsner AAF 109 Civ. Paved No 1900 65 km
Tateyama 3 0 67 km
Tachikawa 95 0 67 km
Iruma 91 Mil. Paved Yes 6500 72 km
Honda 12 0 72 km
Yokota AFB OKO 139 Mil. Paved Yes 11000 73 km
Hyakuri 32 Mil. Paved Yes 8800 76 km

Ports

Name LOCODE Country Distance
Goi JPGOI Japan 1 km
Chiba JPCHB Japan 7 km
Anegasaki JPANE Japan 7 km
Katunan Ko Japan 19 km
Kisarazu JPKZU Japan 24 km
Kawasaki JPKWS Japan 32 km
Ogasawara JPOGA Japan 33 km
Tokyo JPTYO Japan 37 km
Yokohama JPYOK Japan 44 km
Neghisi JPNGI Japan 46 km
Katsuura Ko Japan 48 km
Yokosuka JPYOS Japan 50 km
Kurihama JPKRH Japan 53 km
Tateyama JPTTY Japan 65 km
Kashima JPKSM Japan 66 km
Choshi JPCHO Japan 69 km

Dams

Reservoir Dam Name River Year Distance
Yamakura Yamakura Yamakuragawa 1964 6 km
Takatakiko Takataki Yorogawa 1990 21 km
Kori Kori Korigawa 1972 33 km
Kameyamako Kameyama Obitsugawa 1980 35 km
Sakuma Sakuma Okuzuregawa 1990 50 km
Kasumigaura Kasumigaura-Kaihatsu Tonegawa 1995 59 km
Tamako Murayamashimo Tamagawa 2008 66 km
Tamako Murayamakami Tamagawa 1924 68 km
Sayamako Yamaguchi Tamagawa 2002 68 km
Miyukiko Gongendochosetsuchi Nakagawa 1991 73 km
Tsukuiko Shiroyama Sagamigawa 1964 75 km
Miyagaseko Miyagase Nakatsugawa 2001 78 km
Miyazawako Miyazawatameike Koazegawa 1941 80 km
Yanakako Wataraseyusuichi Watarasegawa 1989 83 km

More information

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