West Coast tides during Cascadia subduction zone tsunamis

被引:13
作者
Mofjeld, HO
Foreman, MGG
Ruffman, A
机构
[1] FISHERIES & OCEANS CANADA INST OCEAN SCI, SIDNEY, BC V8L 4B2, CANADA
[2] GEOMARINE ASSOCIATED LTD, HALIFAX, NS B3J 2L4, CANADA
关键词
D O I
10.1029/97GL02060
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Low, neap tides occurred along the West Coast of the United States and Canada around 0500 UT January 27, 1700, a time for the last major Cascadia earthquake/tsunami based on teletsunami arrival times in Japan [Satake et al., 1996]. However, high-range perigean spring tides occurred only a week later, illustrating how accurately occurrence times must be known to constrain the region's background water levels during such events. The ranges of background water levels increase northward from 3 m at Monterey to 8.5 m at Queen Charlotte, as estimated from the amplitudes of perigean spring tides and subtidal winter fluctuations.
引用
收藏
页码:2215 / 2218
页数:4
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