The 1994 Kuril Islands earthquake – also known as the Hokkaido Toho-oki earthquake – occurred on . The magnitude of this earthquake was put at 8.3, or . The epicenter was located at about 70 km east of Shikotan Island. The shaking and tsunami caused road and building damage. At least 10 people were reported dead.

Earthquake

This earthquake was an intra-slab earthquake within the Pacific Plate which is subducting beneath the

Okhotsk Plate The Okhotsk Plate is a minor tectonic plate covering the Kamchatka Peninsula, Magadan Oblast, and Sakhalin Island of Russia; Hokkaido, Kantō and Tōhoku regions of Japan; the Sea of Okhotsk, as well as the disputed Kuril Islands. It was ...

Damage

Oil storage tanks in Malokurilsk and Krabozavodsk were damaged. An oil leak occurred and caused heavy contamination of the port area.

Intensity

The intensity was MSK VI~IX in Shikotan Island. The earthquake could be felt in

Tokyo Tokyo (; ja, 東京, , ), officially the Tokyo Metropolis ( ja, 東京都, label=none, ), is the capital and List of cities in Japan, largest city of Japan. Formerly known as Edo, its metropolitan area () is the most populous in the world, ...

with shindo 3, and in Hokkaido, the highest intensity reached shindo 6.

Aftershocks

A large aftershock of magnitude 7.1 or 7.7 occurred on October 9, 1994, at 07:55 UTC. It was located at 43.97° N, 148.22° E with a depth of 33 km. It generated a tsunami, and a peak-to-trough tsunami wave height of 18 cm was recorded in Hanasaki, Japan.

Tsunami

A numerical simulation of the tsunami suggested that the first wave was caused by a significant subsidence north of the Kuril Islands due to the earthquake. A peak-to-trough tsunami wave height of was recorded in Hanasaki, Japan. This earthquake triggered a tsunami in southern

Kuril Islands The Kuril Islands or Kurile Islands (; rus, Кури́льские острова́, r=Kuril'skiye ostrova, p=kʊˈrʲilʲskʲɪjə ɐstrɐˈva; Japanese: or ) are a volcanic archipelago currently administered as part of Sakhalin Oblast in the ...

and

Hokkaido is Japan's second largest island and comprises the largest and northernmost prefecture, making up its own region. The Tsugaru Strait separates Hokkaidō from Honshu; the two islands are connected by the undersea railway Seikan Tunnel. The lar ...

. The tsunami run-up height was more than 3 m in Yuzhno-Kurilsk bay and 5 m in Zelenyi Island, Russia. The tsunami had a maximum runup height of at the southern part of Dimitrova Bay.

References

External links

* {{DEFAULTSORT:Kuril Islands 1994 Kuril Islands 1994 earthquakes 1994 tsunamis Tsunamis in Japan Tsunamis in Russia 1994 disasters in Russia Earthquakes in the Russian Far East Earthquakes in Japan