期刊
PURE AND APPLIED GEOPHYSICS
卷 178, 期 12, 页码 4763-4775出版社
SPRINGER BASEL AG
DOI: 10.1007/s00024-020-02616-8
关键词
Tsunami numerical modeling; joint inversion; earthquake of Camana
资金
- Universidad Nacional Mayor de San Marcos and CONCYTEC-Peru
A strong earthquake of magnitude Mw 8.2 struck southern Peru on June 23, 2001, causing significant material damage and the loss of 74 lives. The earthquake generated a local tsunami, resulting in the flooding and destruction of beach resorts, causing death and missing persons. The seismic moment was calculated as 2.72 x 10(21) Nm and the fault plane near the trench has a high potential for a tsunamigenic earthquake.
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 x 10(21) 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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据