Land hazards of the Kushiro-Oki earthquake of 15 January 1993 |
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| Authors: | Etsuo Yamamura |
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| Institution: | (1) Department of Regional Ecosystems, Graduate School of Environmental Earth Science, Hokkaido University, Kitaku Kita 10 Nishi 5, 060 Sapporo, Japan |
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| Abstract: | At 8:06, Friday, 15 January 1993, when most residents in Kushiro Bay Area were at home having just finished dinner on the Coming of Age Holiday. An earthquake of 7.8 magnitude reached its maximum intensity. This earthquake was centered about 20 km South of Kushiro at a depth of 103 km. It had disastrous effects on the highly developed modern urban district in the Kushiro Bay Area. This earthquake is of special interest seismologically because it was triggered by the activity of a segment of the main. The study of this earthquake is of crucial importance for researchers who work on urban seismic risk evaluation, lifeline earthquake engineering and countermeasure against soil liquefaction. Accordingly, this report focuses on the damage of land hazards to civil engineering structures including lifeline facilities. Regarding the lifeline system, not only structural damage of the components but also functional damage of the entire systems are of importance. |
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