M 5 in Japan on 30 Dec 2020 00:35 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: 5.0M
Depth: 83.94 Km
Lat/Lon: 36.5483 , 140.3567
Event Date: 30 Dec 2020 00:35 UTC
30 Dec 2020 09:35 Local
Exposed Population:
14790000 people within 100km
Source: NEIC us6000d45q
Inserted at: 30 Dec 2020 00:54 UTC
INFORM Coping capacity of the alert score
1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us6000d45q Scaled population (vector) 6.99  
  C1 earthquake 0.73  
  C2 earthquake -0.22  
  Country Vulnerability -0.71  
  INFORM_normalised 0.57  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1350416 0 30 Dec 2020 00:35 5M, 83.94km N/A 14.8 million (in 100km) 00:18 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 Noguchi, Tono, Sumiya, Ishitsuka, Omiya, Shimo-Isehata, Naka, Koba, Syzugoya, Sakur-Amoto, and Saitama.

Radius Population
100 km 14.8 million people
75 km 5.1 million people
50 km 2.5 million people
20 km 310000 people
10 km 65000 people
5 km 20000 people
2 km 1700 people

Affected Provinces

Region Province Country Population
Kanto Japan 38.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Noguchi Ibaraki Japan Village - 3 km
Tono Ibaraki Japan Village - 3 km
Sumiya Ibaraki Japan Village - 4 km
Ishitsuka Ibaraki Japan Village - 4 km
Omiya Ibaraki Japan Village 27000 people 5 km
Shimo-Isehata Ibaraki Japan Village - 5 km
Naka Ibaraki Japan Village - 5 km
Koba Ibaraki Japan Village - 6 km
Syzugoya Ibaraki Japan Village - 6 km
Sakur-Amoto Ibaraki Japan Village - 6 km
Kamitsubo Ibaraki Japan Village - 7 km
Kami-Edo Ibaraki Japan Village - 7 km
Kamijiku Ibaraki Japan Village - 9 km
Higashizawa Ibaraki Japan Village - 9 km
Ogai Ibaraki Japan Village - 9 km
Yamagata Ibaraki Japan Village - 10 km
Nakago Ibaraki Japan Village - 10 km
Hiyama Tochigi Japan Village - 10 km
Uritsura Ibaraki Japan Village - 10 km
Urizura Ibaraki Japan Village - 10 km
Iino Tochigi Japan Village - 10 km
Takabe Ibaraki Japan Village - 11 km
Shimo-Miyagodo Ibaraki Japan Village - 11 km
Yugoto Ibaraki Japan Village - 11 km
Kume Ibaraki Japan Village - 11 km
Konoya Tochigi Japan Village - 12 km
Nakasai Ibaraki Japan Village - 12 km
Kami-Irino Ibaraki Japan Village - 12 km
Ota Ibaraki Japan Village - 12 km
Kozura Ibaraki Japan Village - 13 km
Yawara Ibaraki Japan Village - 13 km
Kami-Hizawa Ibaraki Japan Village - 13 km
Tamukai Ibaraki Japan Village - 13 km
Mazaka Ibaraki Japan Village - 13 km
Oami Ibaraki Japan Village - 13 km
Tokura Ibaraki Japan Village - 14 km
Takane Ibaraki Japan Village - 14 km
Shimo-Okado Ibaraki Japan Village - 14 km
Machida Ibaraki Japan Village - 14 km
Makino Tochigi Japan Village - 14 km
Ushirono Ibaraki Japan Village - 14 km
Ohashi Ibaraki Japan Village - 15 km
Yoshu Tochigi Japan Village - 15 km
Nishitari Ibaraki Japan Village - 15 km
Kawamata Tochigi Japan Village - 15 km
Yatsu Ibaraki Japan Village - 15 km
Torinoko-Shimogo Ibaraki Japan Village - 15 km
O-Kisu Tochigi Japan Village - 15 km
Odano Ibaraki Japan Village - 16 km
Iida Ibaraki Japan Village - 16 km
Sugaya Ibaraki Japan Village - 17 km
Megakusa Ibaraki Japan Village - 17 km
Kegano Ibaraki Japan Village - 17 km
Satonomiya Ibaraki Japan Village - 17 km
Kita-Tomita Ibaraki Japan Village - 17 km
Kami-Akasawa Ibaraki Japan Village - 17 km
Motogi Tochigi Japan Village - 18 km
Kami-Ii Tochigi Japan Village - 18 km
Kuryuzawa Ibaraki Japan Village - 18 km
Kawashimo Ibaraki Japan Village - 18 km
Mukada Tochigi Japan Village - 18 km
Mayumi Ibaraki Japan Village - 18 km
Takigawa Ibaraki Japan Village - 19 km
Sugisaki Ibaraki Japan Village - 19 km
Kuroda Tochigi Japan Village - 19 km
Machiya Ibaraki Japan Village - 19 km
Korofuji Ibaraki Japan Village - 19 km
Wabuchi Ibaraki Japan Village - 20 km
Uchihara Ibaraki Japan Village - 20 km
Chofuku Ibaraki Japan Village - 20 km
Hosoda Ibaraki Japan Village - 20 km
Nakanotsubo Tochigi Japan Village - 20 km
Kami-Takakura Ibaraki Japan Village - 20 km
Oyama Tochigi Japan Village - 20 km
Tahiko Ibaraki Japan Village - 21 km
Kasama Ibaraki Japan Village 29000 people 21 km
Karasuyama Tochigi Japan City 18000 people 21 km
Tochibara Ibaraki Japan Village - 21 km
Shimo-Oba Tochigi Japan Village - 22 km
Kami-Onuki Tochigi Japan Village - 22 km
Naka-Fukazawa Tochigi Japan Village - 22 km
Koibuchi Ibaraki Japan Village - 22 km
Ogoto Ibaraki Japan Village - 22 km
Arajuku Tochigi Japan Village - 22 km
Mito Ibaraki Japan Major city 240000 people 23 km
Tomobe Ibaraki Japan Village 37000 people 23 km
Fumiya Tochigi Japan Village - 23 km
Shiota Tochigi Japan Village - 23 km
Irishiken Ibaraki Japan Village - 23 km
Semba Ibaraki Japan Village - 23 km
Yugusa Ibaraki Japan Village - 23 km
Orihashi Ibaraki Japan Village - 23 km
Kitanosawa Ibaraki Japan Village - 23 km
Yaazami Tochigi Japan Village - 23 km
Toyooka Ibaraki Japan Village - 24 km
Kuji Ibaraki Japan City 35000 people 24 km
O-Naka Ibaraki Japan Village - 24 km
Ashinuma Tochigi Japan Village - 24 km
Shinden Ibaraki Japan Village - 24 km
Tsukuroda Ibaraki Japan Village - 24 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
Hyakuri 32 Mil. Paved Yes 8800 41 km
Utsunomiya QUT 102 Civ. Paved Yes 5500 44 km
Suzumenomiya 82 0 45 km
Otawara 201 0 45 km
26 0 59 km
Ryugasaki 2 0 71 km
Fukushima FKS 372 Civ. Paved Yes 8200 76 km
Ryugasaki South 2 0 76 km
Chiba-ken 19 0 78 km
Onishi 20 0 86 km
Tokyo Narita International NRT 42 Civ. Paved Yes 13100 87 km
Shimofusa 30 Civ. Paved Yes 7300 89 km
Shimo Kolzumi 30 0 91 km
Honda 12 0 98 km

Ports

Name LOCODE Country Distance
Hitachi JPHTC Japan 25 km
Onahama JPONA Japan 66 km
Kashima JPKSM Japan 78 km
Choshi JPCHO Japan 100 km

Dams

Reservoir Dam Name River Year Distance
Jajanboike Kozogawa Kozogawa 1985 15 km
Mizunuma Mizunuma Hanazonokawa 1966 44 km
Shitokiko Shitoki Shitokigawa 1983 51 km
Terayama Terayama Miyakawa 1984 55 km
Takashibako Takashiba Samekawa 1961 57 km
Higashikoyako Nishiarakawa Nishiarakawa 1967 58 km
Shiobara Shiobara Hokigawa 1978 62 km
Sabigawa Sabigawa Sabigawa 1994 66 km
Kasumigaura Kasumigaura-Kaihatsu Tonegawa 1995 67 km
Imaichichoseichi Imaichi Togawa 1988 69 km
Ikariko Ikari Ojikagawa 1956 70 km
Yashioko Kawaji Kunugawa 1983 71 km
Kuriyamachoseichi Kuriyama Nebesawagawa 1988 71 km
Yanakako Wataraseyusuichi Watarasegawa 1989 72 km
Bobatako Sengozawa Kitasugawa 1974 72 km
Miyamako Miyama Nakagawa 1973 73 km
Miyukiko Gongendochosetsuchi Nakagawa 1991 74 km
Kurobe Kurobe Kinugawa 1912 76 km
Chuzenjiko Chuzenji Daiyagawa 1998 80 km
Kawamatako Kawamata Kinugawa 1966 84 km
Hatoriko Hatori Tsurunumagawa 1955 84 km
Fujinumachosuichi Fujimuna Ebanagawa 1948 85 km
Kusakiko Kusaki Watarasegawa 1976 88 km
Fukadachoseichi Fukadachoseichi Tadanogawa 1982 93 km
Marunumako Marunuma Otakigawa 1931 96 km
Wakasatoko Okawa Agagawa 1987 97 km
Ouchi Ouchi Onogawa 1991 98 km

Nuclear plants

Name Country Reactors Distance
TOKAI JAPAN 3 25 km

More information

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