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1994年北岭地震

北岭地震
在地震中倒塌的建筑物
日期1994年1月17日
发生时间04:31 PST (12:30 UTC)
震级6.7 Mw
震源深度19.0公里
震中34°12′25″N 118°32′06″W / 34.207°N 118.535°W / 34.207; -118.535
影响地区美国加州南部
最大烈度IX - Violent
最大加速度1.7g英语peak ground acceleration
伤亡57人死亡
超过8,700人受伤

1994年北岭地震(英语:1994 Northridge earthquake)是发生于太平洋时区1994年1月17日早上4:30:55的一次矩震级6.7级地震[1],属于盲断层地震,震央位于圣费尔南多谷地区的洛杉矶

地震持续约10至20秒,其最高地面加速度英语peak ground acceleration1.82g为北美洲市区范围录得的最高纪录[2][3][4]。此次地震远至圣迭戈拉斯维加斯凤凰城等都能感受到[5]。而里纳尔迪接收站录得的最高地面速度为183 cm/s,是有纪录以来最快[6]

该地震发生后又发生了两次6.0级余震,第一次为地震后约一分钟,第二次约为11小时后,是几千次余震当中最强的[7]。地震死亡人数为57人,超过9000人受伤[8][9]。经济损失估计为130亿至500亿美元(相当于2021年240亿至930亿美元),成为美国历史上经济损失最严重的自然灾害[10]

参考资料

  1. ^ Template:Cite anss
  2. ^ Luco, Nicolas. Seismic design and hazard maps: Before and after. Structure. 2019: 28–30 [2023-09-02]. (原始内容存档于2021-06-17). 
  3. ^ USGS Earthquake Information for 1994 "Significant Earthquakes of the World 1994" 互联网档案馆存档,存档日期2011-07-14.
  4. ^ Northridge Earthquake互联网档案馆存档,存档日期2004-09-04. Southern California Earthquake Data Center. Retrieved October 6, 2006.
  5. ^ M 6.7 - Northridge - Impact. United States Geological Survey. [2021-11-11]. (原始内容存档于2022-04-16). 
  6. ^ ShakeMap Scientific Background. [2017-08-28]. (原始内容存档于2011-06-23). 
  7. ^ Douglas Dreger. The Large Aftershocks of the Northridge Earthquake and their Relationship to Mainshock Slip and Fault Zone Complexity. [25 November 2012]. (原始内容存档于2019-06-11). 
  8. ^ 引用错误:没有为名为latimes95的参考文献提供内容
  9. ^ Miller, Devon. Remembering The Northridge Earthquake 27 Years Later. The Valley Post. 2021-01-17 [2021-01-17]. (原始内容存档于May 25, 2021) (美国英语). 
  10. ^ 1994 Quake Still Fresh in Los Angeles Minds. Los Angeles Daily News. 2014-01-11 [July 9, 2017]. (原始内容存档于2021-10-27). 
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1994年北岭地震
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