M 6.6 in Japan on 05 Sep 2018 18:07 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: 6.6M
Depth: 31 Km
Lat/Lon: 42.7077 , 141.9323
Event Date: 05 Sep 2018 18:07 UTC
06 Sep 2018 03:07 Local
Exposed Population: About 17000 people in MMI
3340000 people within 100km
Source: NEIC us2000h8ty
Inserted at: 05 Sep 2018 18:34 UTC
INFORM Coping capacity of the alert score
1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0 0 0
us2000h8ty Scaled population (vector) 3.11 Max wave alert 0m  
  C1 shakemap -0.59 Max wave realtime 0m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  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, Hama-atsuma, Hayakita, Rubeshibe, Mukawa, Hobetsu, Biratori, Hobiboe, Oiwake, and Tomamu.

Radius Population
100 km 3.4 million people
75 km 2.7 million people
50 km 510000 people
20 km 24000 people
10 km 3800 people
5 km <1000 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
Horonai Hokkaido Japan Village - 6 km
Azuma Hokkaido Japan Village - 6 km
Hama-atsuma Hokkaido Japan Village - 11 km
Hayakita Hokkaido Japan Village - 12 km
Rubeshibe Hokkaido Japan Village - 15 km
Mukawa Hokkaido Japan Village - 15 km
Hobetsu Hokkaido Japan Village - 16 km
Biratori Hokkaido Japan Village - 17 km
Hobiboe Hokkaido Japan Village - 20 km
Oiwake Hokkaido Japan Village - 21 km
Sarufuto Hokkaido Japan Village - 21 km
Takinoue Hokkaido Japan Village - 22 km
Kawamukai Hokkaido Japan Village - 23 km
Naka-hobetsu Hokkaido Japan Village - 24 km
Mayachi Hokkaido Japan Village - 26 km
Mombetsu Hokkaido Japan Village - 28 km
Chitose Hokkaido Japan City 92000 people 28 km
Kenufuchi Hokkaido Japan Village - 29 km
Furenai Hokkaido Japan Village - 29 km
Tomakomai Hokkaido Japan City 170000 people 30 km
Kiyomizudani Hokkaido Japan Village - 32 km
Yuni Hokkaido Japan Village - 36 km
Oji Hokkaido Japan Village - 36 km
Eniwa Hokkaido Japan Village 68000 people 36 km
Showa Hokkaido Japan Village - 37 km
Shimamatsu Hokkaido Japan Village - 38 km
Yubari Hokkaido Japan City 13000 people 39 km
Sannakoro Hokkaido Japan Village - 40 km
Kuriyama Hokkaido Japan City - 41 km
Atsugacho Hokkaido Japan Village - 41 km
Ninyu Hokkaido Japan Village - 42 km
Nishikioka Hokkaido Japan Village - 44 km
Manji Hokkaido Japan Village - 44 km
Kohan Hokkaido Japan Village - 45 km
Hachigo-shigaichi Hokkaido Japan Village - 46 km
Kurisawa Hokkaido Japan Village - 48 km
Niikappu Hokkaido Japan Village - 49 km
Sariwarabe Hokkaido Japan Village - 51 km
Shiraoi Hokkaido Japan Village 21000 people 52 km
Kikaiba Hokkaido Japan Village - 52 km
Chiroro Hokkaido Japan Village - 52 km
Atsubetsu Hokkaido Japan Village - 53 km
Shizunai Hokkaido Japan Village 22000 people 54 km
Ebetsu Hokkaido Japan City 130000 people 55 km
Iwamizawa Hokkaido Japan City 84000 people 56 km
Ichibu Hokkaido Japan Village - 57 km
Horonai Hokkaido Japan Village - 57 km
Tsukisamu Hokkaido Japan Village - 57 km
Kami-yamahana Hokkaido Japan Village - 58 km
Horonaibuto Hokkaido Japan Village - 58 km
Shinotsu Hokkaido Japan Village - 59 km
Shin-horonai-tanzan Hokkaido Japan Village - 60 km
Mikasa Hokkaido Japan City 12000 people 61 km
Kami-tappu Hokkaido Japan Village - 61 km
Higashi-shizunai Hokkaido Japan Village - 62 km
Sapporo Hokkaido Japan Major city 1.9 million people 62 km
Tobetsu Hokkaido Japan Village - 66 km
Bibai Hokkaido Japan City 29000 people 66 km
Garo Hokkaido Japan Village - 67 km
Ikushumbetsu Hokkaido Japan Village - 67 km
Jozankei Hokkaido Japan Village - 69 km
Takinosawa Hokkaido Japan Village - 69 km
Higashiyama Hokkaido Japan Village - 70 km
Tomamu Hokkaido Japan Village - 70 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 65 km
Sado Shima SDS unknown 0 68 km

Ports

Name LOCODE Country Distance
Tomakomai JPTMK Japan 28 km
Wakkanai Japan 81 km
Muroran JPMUR Japan 91 km
Otaru JPOTR Japan 94 km

Dams

Reservoir Dam Name River Year Distance
Azuma Azuma Azumagawa 1969 12 km
Nibutaniko Nibutani Sarugawa n/a 19 km
Kawabata Kawabata Yubarigawa 1962 22 km
Hobetsu Hobetsu Hobetsugawa 1984 27 km
Shimizusawa Shimizusawa Yubarigawa 1954 33 km
Shuparoko Oyubari Yubarigawa 1959 37 km
Iwachishi Iwachishi Sarugawa 1958 38 km
Eniwako Izarigawa Izarigawa 1980 44 km
Horomui Horomui Mappugawa 1990 51 km
Shimonikappu Shimonikappu Nikappugawa 1969 51 km
Niikappu Niikappu Niikappugawa 1974 51 km
Katsurazawako Katsurazawa Ikushunbetsugawa 1957 59 km
Poroshiriko Okunikappu Nikappugawa 1963 60 km
Shizunaichoseichi Shizunai Shizunaigawa 1966 61 km
Kanayamako Kanayama Sorachigawa 1967 62 km
Takamiko Takami Shizunaigawa 1983 63 km
Ashibetsuko Ashibetsu Sorachigawa 1952 65 km
Jozanko Hoheikyo Toyohiragawa 1972 69 km
Sapporoko Jozankei Otarunaigawa 1989 72 km
Mitsuishi Mitsuishi Mitsuishigawa 1991 72 km
Higashinosawachoseichi Higashinosawa Koikakushushibicharigawa 1987 73 km
Fujinnoumi Horobetsu Horobetsugawa 1967 78 km
Sappinaichosuichi Sappinai Sappinaigawa 1926 79 km
Tsukigata Tsukigata Subetsugawa 1973 79 km
Nokanan Nokanan Nokanangawa 1978 84 km
Kitasatoko Kitasato Sorachigawa 1999 86 km
Sahoroko Sahoro Sahorogawa 1984 89 km
Nokananko Nokanan Sorachigawa 1971 89 km
Aoyamachosuichi Aoyama Tobetsugawa 1963 90 km
Kuttariko Kuttari Tokachigawa 1987 92 km
Iwamatsuko Iwamatsu Tokachigawa 1943 97 km
Nisshin Nisshin Pirikafuranuigawa 1970 98 km
Rukuchosuichi Shintotsukawa Rukushubetsugawa 1961 99 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.