Damage Assessment and Seismic Intensity Analysis of the 2010 (Mw 8.8) Maule Earthquake
Damage Assessment and Seismic Intensity Analysis of the 2010 (Mw 8.8) Maule Earthquake
复制标题
2010年马乌莱8.8级地震震害评估及烈度分析
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
R. Astroza
中科院分区：
文献类型：
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作者：
M. Astroza;S. Ruiz;R. Astroza
估算了2010年马乌莱地震破坏区内的MSK-64地震烈度。为此，对受灾地区111个城市的典型单户建筑进行了实地调查。靠近地震断裂带北部的城市遭受的破坏更大，但大多数破坏涉及土坯房和未加固的砖石房屋。在现代低层工程和非工程建筑中，特别是在约束砌体建筑中，注意到轻微和中度损坏。尽管破裂的长度很长，达到450公里以上，但只有一个强度值等于IX，21%的值大于VII。地震烈度的衰减受主凸起距离的控制大于受震源距离的控制，这是大规模逆冲断层地震的一个重要特征，在大规模俯冲环境的地震危险性分析中应予以考虑。
The MSK-64 seismic intensities inside the damage area of the 2010 Maule earthquake are estimated. With this purpose, field surveys of damage to typical single-family buildings located in 111 cities of the affected area were used. Cities located close to the north part of the earthquake rupture suffered higher damage, but most of this damage concerned adobe and unreinforced masonry houses. Minor and moderate damage was noted in modern low-rise engineered and nonengineered constructions, especially in confined masonry buildings. Despite the large length of the rupture, which reached more than 450 km, only one intensity value equal to IX was determined, and 21% of the values were greater than VII. The attenuation of seismic intensity was controlled by the distance to the main asperity more than to the hypocenter, which would be an important characteristic of the megathrust earthquakes, and it should therefore be considered in the seismic risk of large subduction environments.
影响因子：
18.3
作者：
Lorito, S.;Romano, F.;Piatanesi, A.
通讯作者：
Piatanesi, A.