• Source: 1994 Kuril Islands earthquake

The 1994 Kuril Islands earthquake – also known as the Hokkaido Toho-oki earthquake – occurred on October 5 at 00:23:00 local time. The magnitude of this earthquake was put at Mw8.3, or MJMA8.1. 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 microplate.




= Damage

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




= Intensity

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The intensity was MSK VI~IX in Shikotan Island.
The earthquake could be felt in Tokyo with shindo 3, and in Hokkaido, the highest intensity reached shindo 6.




= Aftershocks

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A large aftershock of magnitude Mw 7.1 or Ms 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 3.46 m (11.4 ft) was recorded in Hanasaki, Japan.
This earthquake triggered a tsunami in southern Kuril Islands and Hokkaido. 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 10.4 m (34 ft) at the southern part of Dimitrova Bay.




See also


List of earthquakes in 1994
List of earthquakes in Russia
April 1923 Kamchatka earthquake and tsunami
1963 Kuril Islands earthquake
2006 Kuril Islands earthquake
2007 Kuril Islands earthquake
Kuril–Kamchatka Trench




References






External links


The International Seismological Centre has a bibliography and/or authoritative data for this event.

Kata Kunci Pencarian:

• 1994 Kuril Islands earthquake
• 2006 Kuril Islands earthquake
• 2007 Kuril Islands earthquake
• 1963 Kuril Islands earthquake
• Kuril Islands earthquake
• Kuril–Kamchatka Trench
• Hokkaidō earthquake
• List of earthquakes in Russia
• Lists of earthquakes
• Shikotan