On June 23, 2001 at 15:33 local time (20:33 UTC), a strong earthquake of magnitude Mw 8.2 shook the southern region of Peru, causing considerable material damage and the loss of 74 human lives. The epicenter was located in the sea near the city of Atico (Arequipa). As a coseismic effect, a local tsunami was generated, which after 15 min, caused the flood and destruction of the beach resorts of Camana and resulted in the death of 25 people and 62 missing persons. Another coseismic effect was the subsidence of the coastal zones in the source region, evidenced by geodetic observations. We have conducted a joint inversion of tsunami and geodetic data with a fault plane of variable dip to obtain the slip distribution. The main asperity (slip = 12.6 m) was located offshore Camana, this explains the great damage in this city. The seismic moment was calculated in 2.72×1021\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$2.72\times 10^{21}$$\end{document} Nm and the corresponding moment magnitude was Mw 8.2. The subfaults near the trench have a null slip, therefore there is a high potential for the generation of a tsunamigenic earthquake in the updip of the fault plane near the trench.

中文翻译：

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来自大地测量和海啸数据联合反演的 2001 年秘鲁卡马纳地震 (Mw 8.2) 的地震源

2001 年 6 月 23 日当地时间 15 时 33 分（UTC 时间 20 时 33 分），一场 8.2 级的强烈地震震动了秘鲁南部地区，造成相当大的物质损失和 74 人丧生。震中位于阿蒂科市（阿雷基帕）附近的海域。作为同震效应，产生了局部海啸，15 分钟后，导致卡马纳海滩度假村发生洪水和破坏，造成 25 人死亡和 62 人失踪。另一个同震效应是源区沿海地区的下沉，大地测量证实了这一点。我们对海啸和大地测量数据与可变倾角的断层面进行了联合反演，以获得滑动分布。主要的凹凸不平（滑移 = 12.6 m）位于卡马纳近海，这解释了这座城市遭受的巨大破坏。地震矩计算在 2.72×1021\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{ upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$2.72\times 10^{21}$$\end{document} Nm，对应的矩震级为 Mw 8.2。海沟附近的子断层具有零滑移，因此在靠近海沟的断层面的上倾角有很大的可能发生海啸地震。72\times 10^{21}$$\end{document} Nm，对应的矩震级为 Mw 8.2。海沟附近的子断层具有零滑移，因此在靠近海沟的断层面的上倾角有很大的可能发生海啸地震。72\times 10^{21}$$\end{document} Nm，对应的矩震级为 Mw 8.2。海沟附近的子断层具有零滑移，因此在靠近海沟的断层面的上倾角有很大的可能发生海啸地震。