Field survey of the 1994 Mindoro Island, Philippines tsunami
Field survey of the 1994 Mindoro Island, Philippines tsunami
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1994年菲律宾民都洛岛海啸实地调查
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
Ho Jun Lee
中科院分区：
文献类型：
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作者：
F. Imamura;C. Synolakis;E. Gica;V. Titov;E. Listanco;Ho Jun Lee
这是1994年11月15日菲律宾民都洛岛7.0级走滑地震引发海啸的实地调查报告。我们将报告吕宋岛、民都洛岛以及民都洛岛和吕宋岛之间佛得角通道中其他较小岛屿上 54 个地点的上升高度。大部分损失集中在民都洛岛北部海岸。受损最严重地区的爬升高度分布为 3-4 m，邻近地区为 2-4 m。海啸影响范围仅限于距震中10公里以内。巴科岛西南海岸测得的最大上升高度为 7.3 m，而其北部海岸线测得的上升高度为 6.1 m。地震和海啸造成62人死亡、248人受伤、800间房屋被毁。正如最近发生的其他海啸灾难中所观察到的那样，大多数伤亡者是儿童。几乎所有接受采访的目击者都将第一波描述为主导萧条浪潮。目击者报告称，海啸传播的主要方向是苏巴昂湾的西南方向、瓦瓦和卡拉潘的东南方向、巴科岛的东北方向和维德岛的北向，这表明海啸源区位于维德岛南部山口，海浪向各个方向快速传播。断层面向近海延伸至民都洛岛北部，其断裂起始于维德岛南部，几乎直接向南传播至民都洛岛内陆，因此在民都洛岛北部观察到的破坏区域相对有限。
This is a report of the field survey of the November 15, 1994 Mindoro Island, Philippines, tsunami generated by an earthquake (M=7.0) with a strike-slip motion. We will report runup heights from 54 locations on Luzon, Mindoro and other smaller islands in the Cape Verde passage between Mindoro and Luzon. Most of the damage was concentrated along the northern coast of Mindoro. Runup height distribution ranged 3–4 m at the most severely damaged areas and 2–4 in neighboring areas. The tsunami-affected area was limited to within 10 km of the epicenter. The largest recorded runup value of 7.3 m was measured on the southwestern coast of Baco Island while a runup of 6.1 m was detected on its northern coastline. The earthquake and tsunami killed 62 people, injured 248 and destroyed 800 houses. As observed in other recent tsunami disasters, most of the casualties were children. Nearly all eyewitnesses interviewed described the first wave as a leading-depression wave. Eyewitnesses reported that the main direction of tsunami propagation was SW in Subaang Bay, SE in Wawa and Calapan, NE on Baco Island and N on Verde Island, suggesting that the tsunami source area was in the southern Pass of Verde Island and that the wave propagated rapidly in all directions. The fault plane extended offshore to the N of Mindoro Island, with its rupture originating S of Verde Island and propagating almost directly south to the inland of Mindoro, thereby accounting for the relatively limited damage area observed on the N of Mindoro.