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: 33.36 Km
Lat/Lon: 42.6711 , 141.933
Event Date: 05 Sep 2018 18:07 UTC
06 Sep 2018 03:07 Local
Exposed Population: About 1000 people in MMI
3310000 people within 100km
Source: NEIC us2000h8ty
Inserted at: 05 Sep 2018 19:46 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 0.6 0 0.6
us2000h8ty Scaled population (vector) 5.17 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 Azuma, Hama-atsuma, Horonai, Mukawa, Biratori, Rubeshibe, Hayakita, Sarufuto, Kawamukai, Hobetsu, and Kami mitsuishi.

Radius Population
100 km 3.3 million people
75 km 2.6 million people
50 km 480000 people
20 km 32000 people
10 km 5600 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
Azuma Hokkaido Japan Village - 9 km
Hama-atsuma Hokkaido Japan Village - 9 km
Horonai Hokkaido Japan Village - 10 km
Mukawa Hokkaido Japan Village - 10 km
Biratori Hokkaido Japan Village - 13 km
Rubeshibe Hokkaido Japan Village - 15 km
Hayakita Hokkaido Japan Village - 16 km
Sarufuto Hokkaido Japan Village - 17 km
Kawamukai Hokkaido Japan Village - 18 km
Hobetsu Hokkaido Japan Village - 18 km
Hobiboe Hokkaido Japan Village - 19 km
Mombetsu Hokkaido Japan Village - 23 km
Oiwake Hokkaido Japan Village - 25 km
Takinoue Hokkaido Japan Village - 27 km
Naka-hobetsu Hokkaido Japan Village - 27 km
Furenai Hokkaido Japan Village - 29 km
Tomakomai Hokkaido Japan City 170000 people 30 km
Mayachi Hokkaido Japan Village - 31 km
Chitose Hokkaido Japan City 92000 people 31 km
Kenufuchi Hokkaido Japan Village - 33 km
Showa Hokkaido Japan Village - 34 km
Oji Hokkaido Japan Village - 35 km
Atsugacho Hokkaido Japan Village - 37 km
Kiyomizudani Hokkaido Japan Village - 37 km
Eniwa Hokkaido Japan Village 68000 people 39 km
Yuni Hokkaido Japan Village - 40 km
Sannakoro Hokkaido Japan Village - 41 km
Shimamatsu Hokkaido Japan Village - 42 km
Nishikioka Hokkaido Japan Village - 44 km
Yubari Hokkaido Japan City 13000 people 44 km
Ninyu Hokkaido Japan Village - 44 km
Niikappu Hokkaido Japan Village - 45 km
Kuriyama Hokkaido Japan City - 45 km
Kohan Hokkaido Japan Village - 47 km
Sariwarabe Hokkaido Japan Village - 47 km
Manji Hokkaido Japan Village - 49 km
Shizunai Hokkaido Japan Village 22000 people 50 km
Hachigo-shigaichi Hokkaido Japan Village - 51 km
Shiraoi Hokkaido Japan Village 21000 people 51 km
Kurisawa Hokkaido Japan Village - 53 km
Ichibu Hokkaido Japan Village - 53 km
Chiroro Hokkaido Japan Village - 53 km
Kikaiba Hokkaido Japan Village - 55 km
Atsubetsu Hokkaido Japan Village - 57 km
Higashi-shizunai Hokkaido Japan Village - 58 km
Ebetsu Hokkaido Japan City 130000 people 59 km
Tsukisamu Hokkaido Japan Village - 61 km
Iwamizawa Hokkaido Japan City 84000 people 61 km
Kami-yamahana Hokkaido Japan Village - 62 km
Horonai Hokkaido Japan Village - 62 km
Shinotsu Hokkaido Japan Village - 63 km
Horonaibuto Hokkaido Japan Village - 63 km
Shin-horonai-tanzan Hokkaido Japan Village - 65 km
Mikasa Hokkaido Japan City 12000 people 66 km
Sapporo Hokkaido Japan Major city 1.9 million people 66 km
Kami-tappu Hokkaido Japan Village - 66 km
Kami mitsuishi 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 25 km
Sappora / Chitose 27 Mil. Paved Yes 9800 28 km
Sapporo OKD 8 Civ. Paved Yes 4500 69 km
Sado Shima SDS unknown 0 69 km

Ports

Name LOCODE Country Distance
Tomakomai JPTMK Japan 27 km
Wakkanai Japan 86 km
Muroran JPMUR Japan 90 km
Otaru JPOTR Japan 97 km
Samani JPSAM Japan 99 km

Dams

Reservoir Dam Name River Year Distance
Azuma Azuma Azumagawa 1969 16 km
Nibutaniko Nibutani Sarugawa n/a 16 km
Kawabata Kawabata Yubarigawa 1962 27 km
Hobetsu Hobetsu Hobetsugawa 1984 30 km
Shimizusawa Shimizusawa Yubarigawa 1954 38 km
Iwachishi Iwachishi Sarugawa 1958 39 km
Shuparoko Oyubari Yubarigawa 1959 42 km
Eniwako Izarigawa Izarigawa 1980 46 km
Shimonikappu Shimonikappu Nikappugawa 1969 49 km
Niikappu Niikappu Niikappugawa 1974 50 km
Horomui Horomui Mappugawa 1990 55 km
Shizunaichoseichi Shizunai Shizunaigawa 1966 57 km
Poroshiriko Okunikappu Nikappugawa 1963 59 km
Takamiko Takami Shizunaigawa 1983 60 km
Katsurazawako Katsurazawa Ikushunbetsugawa 1957 64 km
Kanayamako Kanayama Sorachigawa 1967 65 km
Mitsuishi Mitsuishi Mitsuishigawa 1991 69 km
Ashibetsuko Ashibetsu Sorachigawa 1952 69 km
Higashinosawachoseichi Higashinosawa Koikakushushibicharigawa 1987 71 km
Jozanko Hoheikyo Toyohiragawa 1972 71 km
Sapporoko Jozankei Otarunaigawa 1989 75 km
Fujinnoumi Horobetsu Horobetsugawa 1967 77 km
Sappinaichosuichi Sappinai Sappinaigawa 1926 83 km
Tsukigata Tsukigata Subetsugawa 1973 84 km
Nokanan Nokanan Nokanangawa 1978 89 km
Kitasatoko Kitasato Sorachigawa 1999 90 km
Sahoroko Sahoro Sahorogawa 1984 91 km
Nokananko Nokanan Sorachigawa 1971 94 km
Kuttariko Kuttari Tokachigawa 1987 94 km
Aoyamachosuichi Aoyama Tobetsugawa 1963 95 km
Samaniko Samani Samanigawa 1974 98 km
Iwamatsuko Iwamatsu Tokachigawa 1943 99 km

More information

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