Basin Structure beneath the Santa Rosa Plain, Northern California: Implications for Damage Caused by the 1969 Santa Rosa and 1906 San Francisco Earthquakes

D. K. McPhee; V. E. Langenheim; S. Hartzell; R. J. McLaughlin; B. T. Aagaard; R. C. Jachens; C. McCabe

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Basin Structure beneath the Santa Rosa Plain, Northern California: Implications for Damage Caused by the 1969 Santa Rosa and 1906 San Francisco Earthquakes

机译：北加利福尼亚圣罗莎平原下的盆地结构：对1969年圣罗莎和1906年旧金山地震造成的破坏的影响

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Regional gravity data in the northern San Francisco Bay region reflect a complex basin configuration beneath the Santa Rosa plain that likely contributed to the significant damage to the city of Santa Rosa caused by the 1969 M 5.6, 5.7 Santa Rosa earthquakes and the 1906 M 7.9 San Francisco earthquake. Inversion of these data indicates that the Santa Rosa plain is underlain by two sedimentary basins about 2 km deep separated by the Trenton Ridge, a shallow west-northwest-striking bedrock ridge west of Santa Rosa. The city of Santa Rosa is situated above the 2- km-wide protruding northeast corner of the southern basin where damage from both the 1969 and 1906 earthquakes was concentrated. Ground-motion simulations of the 1969 and 1906 earthquakes, two events with opposing azimuths, using the gravity- defined basin surface, show enhanced ground motions along the northeastern edge of this corner, suggesting that basin-edge effects contributed to the concentration of shaking damage in this area in the past and may also contribute to strong shaking during future earthquakes.

机译：旧金山湾北部地区的区域重力数据反映了圣罗莎平原下的复杂盆地构造，这可能对圣罗莎（Santa Rosa）市是由1969年的M 5.6、5.7级Santa 罗莎地震和1906年的M 7.9级旧金山地震引起的。这些数据的反演表明圣罗莎平原位于的两个沉积盆地之下，该沉积盆地的深约2公里，由 -Santa Rosa以西的西北基岩脊。圣罗莎（Santa Rosa）市位于南部盆地 2公里宽的凸出东北角的上方，在此地区，1969年和1906年地震的破坏都集中在此。 1969年和1906年地震的地面运动模拟，两个具有相反方位角的事件，使用重力定义的盆地表面，沿东北方向显示出增强的地震动该角的边缘，表明盆地边缘效应对过去该区域的震荡破坏集中程度有所贡献，也可能对未来地震时强烈震动。

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《Bulletin of the Seismological Society of America》 |2007年第5期|1449-1457|共9页
作者
D. K. McPhee; V. E. Langenheim; S. Hartzell; R. J. McLaughlin; B. T. Aagaard; R. C. Jachens; C. McCabe;
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U.S. Geological Survey;

U.S. Geological Survey;

U.S. Geological Survey;

U.S. Geological Survey;

U.S. Geological Survey;

U.S. Geological Survey;

U.S. Geological Survey;

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1. Basin structure beneath the Santa Rosa plain, northern California: implications for damage caused by the 1969 Santa Rosa and 1906 San Francisco earthquakes [J] . McPhee DK, Langenheim VE, Hartzell S, Bulletin of the Seismological Society of America . 2007,第5期

机译：加利福尼亚北部圣罗莎平原下的盆地结构：对1969年圣罗莎和1906年旧金山地震造成的破坏的影响
2. Geochemical characterization of tarballs on beaches along the California coast. Part I - Shallow seepage impacting the Santa Barbara Channel Islands, Santa Cruz, Santa Rosa and San Miguel [J] . Hostettler FD, Rosenbauer RJ, Lorenson TD, Organic Geochemistry: A Publication of the International Association of Geochemistry and Cosmochemistry . 2004,第6期

机译：加利福尼亚沿海海滩上的沥青球的地球化学特征。第一部分-浅层渗水影响圣巴巴拉海峡群岛，圣克鲁斯，圣罗莎和圣米格尔
3. Detailed Mapping and Rupture Implications of the 1 km Releasing Bend in the Rodgers Creek Fault at Santa Rosa, Northern California [J] . Hecker S., Langenheim V. E., Williams R. A., Bulletin of the Seismological Society of America . 2016,第2期

机译：北加州圣罗莎罗杰斯溪断层1公里释放弯道的详细制图和破裂含义
4. EXAMINATION OF LATERAL REPLACEMENT PROGRAM: A MUNICIPAL PERSPECTIVE CITY OF SANTA ROSA, CALIFORNIA [C] . Collins Orton International wood composites symposium . 2009

机译：横向替换程序的检验：加利福尼亚州圣塔罗莎市的一个透视城市
5. Subsurface structures and their relationship to Northridge earthquake damage in Santa Monica (California). [D] . Baher, Shirley Alice. 2001

机译：圣莫尼卡（加利福尼亚州）的地下结构及其与Northridge地震破坏的关系。
6. THE FIRE AREAS ON SANTA ROSA ISLAND CALIFORNIA II [O] . Rainer Berger, Phil C. Orr 1966

机译：加利福尼亚州圣塔罗莎岛上的火灾区域
7. Basin Structure beneath the Santa Rosa Plain, Northern California: Implications for Damage Caused by the 1969 Santa Rosa and 1906 San Francisco Earthquakes [O] . D. K. McPhee, V. E. Langenheim, S. Hartzell, 2007

机译：圣罗莎平原下面的盆地结构，北加州：对1969年圣罗莎和1906年旧金山地震造成的损害的影响

Basin Structure beneath the Santa Rosa Plain, Northern California: Implications for Damage Caused by the 1969 Santa Rosa and 1906 San Francisco Earthquakes

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