M 6.7 in Japan from 05 Sep 2018 18:07 UTC to 18:07

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: 6.7M
Depth: 39 Km
Lat/Lon: 42.7 , 142
Event Date: 05 Sep 2018 18:07 UTC
06 Sep 2018 03:07 Local
Exposed Population: 3400000 people within 100km
Source: PTWC pt18248000
Inserted at: 05 Sep 2018 18:25 UTC
INFORM Coping capacity of the alert score
1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
PTWC 0.4 0 0.4
pt18248000 Scaled population (vector) 6.36 Max wave alert 0m  
  C1 earthquake 0.73 Max wave realtime 0m  
  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
1227149 0.8 05 Sep 2018 18:07 6.8M, 10km N/A 3.4 million (in 100km) 0m (at 00:00) 00:12 GEOFON
1227151 0.4 05 Sep 2018 18:07 6.7M, 39km N/A 3.4 million (in 100km) 0m (at 00:00) 00:18 PTWC
1227153 0.4 05 Sep 2018 18:07 6.7M, 39km N/A 3.4 million (in 100km) 0m (at 00:00) 00:21 NTWC    
1227156 0 05 Sep 2018 18:07 6.6M, 31km 6.86 20 thousand (in MMI>=VII) 0m (at 00:00) 00:26 NEIC
1227170 0.6 05 Sep 2018 18:07 6.6M, 33.36km 8.64 1.4 million (in MMI>=VII) 0m (at 00:00) 01:38 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 Horonai, Azuma, Biratori, Hama-atsuma, Mukawa, Rubeshibe, Hobetsu, Sarufuto, Hobiboe, Hayakita, and Tomamu.

Radius Population
100 km 3.3 million people
75 km 2.6 million people
50 km 480000 people
20 km 30000 people
10 km 2700 people
5 km <1000 people
2 km no people

Affected Provinces

Region Province Country Population
Hokkaido Japan 5.8 million people

Affected populated places

Name Region Province Country City class Population Distance
Horonai Hokkaido Japan Village - 9 km
Azuma Hokkaido Japan Village - 10 km
Biratori Hokkaido Japan Village - 12 km
Hama-atsuma Hokkaido Japan Village - 12 km
Mukawa Hokkaido Japan Village - 12 km
Rubeshibe Hokkaido Japan Village - 12 km
Hobetsu Hokkaido Japan Village - 16 km
Sarufuto Hokkaido Japan Village - 16 km
Hobiboe Hokkaido Japan Village - 17 km
Hayakita Hokkaido Japan Village - 17 km
Kawamukai Hokkaido Japan Village - 18 km
Mombetsu Hokkaido Japan Village - 23 km
Naka-hobetsu Hokkaido Japan Village - 25 km
Oiwake Hokkaido Japan Village - 26 km
Takinoue Hokkaido Japan Village - 26 km
Furenai Hokkaido Japan Village - 26 km
Mayachi Hokkaido Japan Village - 29 km
Chitose Hokkaido Japan City 92000 people 32 km
Tomakomai Hokkaido Japan City 170000 people 32 km
Showa Hokkaido Japan Village - 32 km
Kenufuchi Hokkaido Japan Village - 34 km
Kiyomizudani Hokkaido Japan Village - 36 km
Atsugacho Hokkaido Japan Village - 36 km
Oji Hokkaido Japan Village - 38 km
Sannakoro Hokkaido Japan Village - 39 km
Yuni Hokkaido Japan Village - 40 km
Eniwa Hokkaido Japan Village 68000 people 41 km
Ninyu Hokkaido Japan Village - 42 km
Yubari Hokkaido Japan City 13000 people 43 km
Shimamatsu Hokkaido Japan Village - 43 km
Niikappu Hokkaido Japan Village - 44 km
Kuriyama Hokkaido Japan City - 45 km
Sariwarabe Hokkaido Japan Village - 46 km
Nishikioka Hokkaido Japan Village - 46 km
Manji Hokkaido Japan Village - 48 km
Kohan Hokkaido Japan Village - 49 km
Shizunai Hokkaido Japan Village 22000 people 49 km
Hachigo-shigaichi Hokkaido Japan Village - 51 km
Chiroro Hokkaido Japan Village - 51 km
Ichibu Hokkaido Japan Village - 52 km
Kurisawa Hokkaido Japan Village - 53 km
Shiraoi Hokkaido Japan Village 21000 people 54 km
Kikaiba Hokkaido Japan Village - 57 km
Higashi-shizunai Hokkaido Japan Village - 57 km
Atsubetsu Hokkaido Japan Village - 58 km
Ebetsu Hokkaido Japan City 130000 people 60 km
Iwamizawa Hokkaido Japan City 84000 people 61 km
Horonai Hokkaido Japan Village - 61 km
Tsukisamu Hokkaido Japan Village - 62 km
Horonaibuto Hokkaido Japan Village - 63 km
Kami-yamahana Hokkaido Japan Village - 63 km
Shinotsu Hokkaido Japan Village - 64 km
Shin-horonai-tanzan Hokkaido Japan Village - 64 km
Mikasa Hokkaido Japan City 12000 people 65 km
Kami-tappu Hokkaido Japan Village - 66 km
Sapporo Hokkaido Japan Major city 1.9 million people 67 km
Kami mitsuishi Hokkaido Japan Village - 68 km
Tomamu 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 26 km
Sappora / Chitose 27 Mil. Paved Yes 9800 29 km
Sado Shima SDS unknown 0 67 km
Sapporo OKD 8 Civ. Paved Yes 4500 70 km
Tokachi 84 Civ. Paved Yes 4900 99 km

Ports

Name LOCODE Country Distance
Tomakomai JPTMK Japan 30 km
Wakkanai Japan 86 km
Muroran JPMUR Japan 92 km
Samani JPSAM Japan 98 km
Otaru JPOTR Japan 99 km

Dams

Reservoir Dam Name River Year Distance
Nibutaniko Nibutani Sarugawa n/a 14 km
Azuma Azuma Azumagawa 1969 14 km
Kawabata Kawabata Yubarigawa 1962 27 km
Hobetsu Hobetsu Hobetsugawa 1984 28 km
Shimizusawa Shimizusawa Yubarigawa 1954 36 km
Iwachishi Iwachishi Sarugawa 1958 37 km
Shuparoko Oyubari Yubarigawa 1959 40 km
Shimonikappu Shimonikappu Nikappugawa 1969 47 km
Niikappu Niikappu Niikappugawa 1974 47 km
Eniwako Izarigawa Izarigawa 1980 48 km
Horomui Horomui Mappugawa 1990 55 km
Shizunaichoseichi Shizunai Shizunaigawa 1966 56 km
Poroshiriko Okunikappu Nikappugawa 1963 57 km
Takamiko Takami Shizunaigawa 1983 59 km
Katsurazawako Katsurazawa Ikushunbetsugawa 1957 63 km
Kanayamako Kanayama Sorachigawa 1967 63 km
Mitsuishi Mitsuishi Mitsuishigawa 1991 67 km
Ashibetsuko Ashibetsu Sorachigawa 1952 68 km
Higashinosawachoseichi Higashinosawa Koikakushushibicharigawa 1987 69 km
Jozanko Hoheikyo Toyohiragawa 1972 73 km
Sapporoko Jozankei Otarunaigawa 1989 76 km
Fujinnoumi Horobetsu Horobetsugawa 1967 79 km
Sappinaichosuichi Sappinai Sappinaigawa 1926 83 km
Tsukigata Tsukigata Subetsugawa 1973 84 km
Nokanan Nokanan Nokanangawa 1978 87 km
Sahoroko Sahoro Sahorogawa 1984 89 km
Kitasatoko Kitasato Sorachigawa 1999 89 km
Kuttariko Kuttari Tokachigawa 1987 92 km
Nokananko Nokanan Sorachigawa 1971 92 km
Aoyamachosuichi Aoyama Tobetsugawa 1963 95 km
Samaniko Samani Samanigawa 1974 97 km
Iwamatsuko Iwamatsu Tokachigawa 1943 97 km
Higashitaisetsuko Tokachi Tokachigawa 1984 100 km

More information

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