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1994 Kuril Islands earthquake

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1994 Kuril Islands earthquake


1994 Kuril Islands earthquake is located in Russia

The 1994 Kuril Islands earthquake occurred on October 4, 1994 at 13:22 UTC (October 5, 1994 at 00:22 local time).[2] The magnitude of this earthquake was put at Mw 8.2, or Mj 8.1.[3] The epicenter was located at about 70 km east of the Shikotan Island. This earthquake triggered a tsunami in southern Kuril Islands and Hokkaido.[4] The tsunami run-up height was more than 3 m in Yuzhno-Kurilsk bay and 5 m in Zelenyi Island, Russia.[2] A peak-to-trough tsunami wave height of 346 cm was recorded in Hanasaki, Japan.[5] The shaking and tsunami caused road and building damage. At least 10 people were reported dead. The intensity was MSK VI~IX in Shikotan Island.[2] Oil storage tanks in Malokurilsk and Krabozavodsk were damaged. Oil leak occurred and caused the both ports heavily contaminated.[6] The earthquake could be felt in Tokyo with shindo 3, and in Hokkaido, the highest intensity reached shindo 6.[7][8] This earthquake was an intra-slab earthquake within the Pacific Plate which is subducting beneath the Okhotsk Plate.[9][10] 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.[11]

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