M 4.9 in Japan on 12 Oct 2018 00:14 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: 9.71 Km
Lat/Lon: 42.6136 , 141.843
Event Date: 12 Oct 2018 00:14 UTC
12 Oct 2018 09:14 Local
Exposed Population:
3210000 people within 100km
Source: NEIC us1000haw5
Inserted at: 12 Oct 2018 00:38 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
us1000haw5 Scaled population (vector) 6.46  
  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
1231394 0 12 Oct 2018 00:14 4.9M, 9.71km N/A 3.2 million (in 100km) 00:23 NEIC
1231398 0 12 Oct 2018 00:14 4.5M, 12.07km N/A 3.2 million (in 100km) 00:30 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 Hokkaido (population 5,808,054) . The nearest places are Hama-atsuma, Mukawa, Azuma, Hayakita, Kawamukai, Horonai, Sarufuto, Tomakomai, Biratori, Mombetsu, and Kami-tappu.

Radius Population
100 km 3.2 million people
75 km 2.8 million people
50 km 480000 people
20 km 96000 people
10 km 8700 people
5 km 1500 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Hokkaido Japan 5.8 million people

Affected populated places

Name Region Province Country City class Population Distance
Hama-atsuma Hokkaido Japan Village - 3 km
Mukawa Hokkaido Japan Village - 8 km
Azuma Hokkaido Japan Village - 13 km
Hayakita Hokkaido Japan Village - 17 km
Kawamukai Hokkaido Japan Village - 19 km
Horonai Hokkaido Japan Village - 19 km
Sarufuto Hokkaido Japan Village - 20 km
Tomakomai Hokkaido Japan City 170000 people 20 km
Biratori Hokkaido Japan Village - 20 km
Mombetsu Hokkaido Japan Village - 24 km
Oji Hokkaido Japan Village - 26 km
Rubeshibe Hokkaido Japan Village - 26 km
Chitose Hokkaido Japan City 92000 people 28 km
Oiwake Hokkaido Japan Village - 29 km
Hobiboe Hokkaido Japan Village - 29 km
Hobetsu Hokkaido Japan Village - 29 km
Nishikioka Hokkaido Japan Village - 33 km
Kenufuchi Hokkaido Japan Village - 34 km
Takinoue Hokkaido Japan Village - 35 km
Eniwa Hokkaido Japan Village 68000 people 37 km
Naka-hobetsu Hokkaido Japan Village - 38 km
Mayachi Hokkaido Japan Village - 39 km
Furenai Hokkaido Japan Village - 40 km
Atsugacho Hokkaido Japan Village - 40 km
Kohan Hokkaido Japan Village - 40 km
Shimamatsu Hokkaido Japan Village - 40 km
Shiraoi Hokkaido Japan Village 21000 people 41 km
Showa Hokkaido Japan Village - 41 km
Yuni Hokkaido Japan Village - 44 km
Kiyomizudani Hokkaido Japan Village - 45 km
Niikappu Hokkaido Japan Village - 47 km
Kuriyama Hokkaido Japan City - 49 km
Kikaiba Hokkaido Japan Village - 51 km
Yubari Hokkaido Japan City 13000 people 51 km
Sariwarabe Hokkaido Japan Village - 52 km
Sannakoro Hokkaido Japan Village - 52 km
Hachigo-shigaichi Hokkaido Japan Village - 52 km
Shizunai Hokkaido Japan Village 22000 people 53 km
Ninyu Hokkaido Japan Village - 55 km
Atsubetsu Hokkaido Japan Village - 56 km
Manji Hokkaido Japan Village - 56 km
Kurisawa Hokkaido Japan Village - 56 km
Tsukisamu Hokkaido Japan Village - 59 km
Kami-yamahana Hokkaido Japan Village - 59 km
Ichibu Hokkaido Japan Village - 59 km
Noboribetsu Hokkaido Japan Village 52000 people 59 km
Ebetsu Hokkaido Japan City 130000 people 60 km
Higashi-shizunai Hokkaido Japan Village - 62 km
Hongo Hokkaido Japan Village - 63 km
Sapporo Hokkaido Japan Major city 1.9 million people 64 km
Shinotsu Hokkaido Japan Village - 64 km
Chiroro Hokkaido Japan Village - 65 km
Horobetsu Hokkaido Japan Village - 65 km
Iwamizawa Hokkaido Japan City 84000 people 65 km
Bankei Hokkaido Japan Village - 67 km
Futaba Hokkaido Japan Village - 67 km
Jozankei Hokkaido Japan Village - 67 km
Horonai Hokkaido Japan Village - 68 km
Horonaibuto Hokkaido Japan Village - 69 km
Kami-tappu Hokkaido Japan Village - 69 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
Sapporo-New Chitose CTS 21 Civ. Paved Yes 9800 22 km
Sappora / Chitose 27 Mil. Paved Yes 9800 25 km
Sapporo OKD 8 Civ. Paved Yes 4500 68 km
Sado Shima SDS unknown 0 80 km

Ports

Name LOCODE Country Distance
Tomakomai JPTMK Japan 18 km
Muroran JPMUR Japan 79 km
Wakkanai Japan 90 km
Otaru JPOTR Japan 94 km

Dams

Reservoir Dam Name River Year Distance
Nibutaniko Nibutani Sarugawa n/a 25 km
Azuma Azuma Azumagawa 1969 26 km
Kawabata Kawabata Yubarigawa 1962 34 km
Hobetsu Hobetsu Hobetsugawa 1984 41 km
Eniwako Izarigawa Izarigawa 1980 41 km
Shimizusawa Shimizusawa Yubarigawa 1954 46 km
Iwachishi Iwachishi Sarugawa 1958 50 km
Shuparoko Oyubari Yubarigawa 1959 51 km
Shimonikappu Shimonikappu Nikappugawa 1969 57 km
Niikappu Niikappu Niikappugawa 1974 59 km
Horomui Horomui Mappugawa 1990 62 km
Shizunaichoseichi Shizunai Shizunaigawa 1966 63 km
Jozanko Hoheikyo Toyohiragawa 1972 66 km
Fujinnoumi Horobetsu Horobetsugawa 1967 66 km
Takamiko Takami Shizunaigawa 1983 68 km
Poroshiriko Okunikappu Nikappugawa 1963 69 km
Sapporoko Jozankei Otarunaigawa 1989 70 km
Katsurazawako Katsurazawa Ikushunbetsugawa 1957 71 km
Mitsuishi Mitsuishi Mitsuishigawa 1991 75 km
Kanayamako Kanayama Sorachigawa 1967 75 km
Ashibetsuko Ashibetsu Sorachigawa 1952 77 km
Higashinosawachoseichi Higashinosawa Koikakushushibicharigawa 1987 78 km
Tsukigata Tsukigata Subetsugawa 1973 87 km
Sappinaichosuichi Sappinai Sappinaigawa 1926 88 km
Nokanan Nokanan Nokanangawa 1978 97 km
Aoyamachosuichi Aoyama Tobetsugawa 1963 98 km
Kitasatoko Kitasato Sorachigawa 1999 99 km

More information

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