Postseismic coastal uplift in southern Chile
Postseismic coastal uplift in southern Chile
复制标题
智利南部震后海岸隆起
DOI:
10.1029/92gl00210
复制
发表时间:
1992
影响因子:
5.2
通讯作者:
E. Lorca
中科院分区:
文献类型:
--
作者:
S. Barrientos;G. Plafker;E. Lorca
Tide gage records at Puerto Montt, referenced to a mareograph in Talcahuano, indicate a large (at least 75 cm) postseismic uplift of the region following the 1960 Mw = 9.5 event. Field observations carried out in 1989 at the same locations of previous measurements in 1968 are consistent with tide gage records. The postseismic elevation changes are modeled as the result of propagating creep on the downdip extension of the coseismic fault. For a 30° E fault dip, minimum square error indicates a fault creep velocity of 4–6 km/yr and slip amplitude of 3–5 m.