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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
發生時間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
影響地區美國加州南部
最大烈度IX - Violent
最大加速度1.7g英语peak ground acceleration
傷亡57人死亡
超过8,700人受伤

1994年北嶺地震(英語:1994 Northridge earthquake)是發生於太平洋時區1994年1月17日早上4:30:55的一次矩震級6.7級地震[1],屬於盲斷層地震,震央位於聖費爾南多谷地區的洛杉磯

地震持續約10至20秒,其最高地面加速度英语peak ground acceleration1.82g為北美洲市區範圍錄得的最高紀錄[2][3][4]。此次地震遠至聖迭戈拉斯維加斯鳳凰城等都能感受到[5]。而里納爾迪接收站錄得的最高地面速度為183 cm/s,是有紀錄以來最快[6]

該地震發生後又發生了兩次6.0級餘震,第一次為地震後約一分鐘,第二次約為11小時後,是幾千次餘震當中最強的[7]。地震死亡人數為57人,超過9000人受傷[8][9]。經濟損失估計為130億至500億美元(相當於2021年240億至930億美元),成為美國歷史上經濟損失最嚴重的自然災害[10]

參考資料

  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" 互联网档案馆存檔,存档日期2011-07-14.
  4. ^ Northridge Earthquake互联网档案馆存檔,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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