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New Discovery of Surface Rupture of Large Paleo‐Earthquake along Northern Pagri‐Duoqing Co Graben, Southern Yadong‐Gulu Rift
Author(s) -
HA Guanghao,
WU Zhonghai,
GAI Hailong,
ZUO Jiameng
Publication year - 2019
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.13829
Subject(s) - geology , beijing , chinese academy of sciences , tectonics , geomechanics , china , rift , graben , seismology , archaeology , geography , geotechnical engineering
Since the Late Cenozoic, the most remarkable active tectonics interior of the Tibetan Plateau has been the north -trending rifts and NW-trending strike-slip faults especially in the southern-central Tibet. The Yadong-Gulu rift is one of the largest active faults of north-trending rifts in the southern Tibet. During the history, several large earthquakes occurred along this rift, such as 1411 Yangbajain earthquake (M=8.0) and 1952 Damxung earthquake (Mw=7.4). However, there is lack of documents of large earthquakes (Mw≥7) along its southern part. In this case, we took field investigation along the southern Yadong-Gulu rift and discovered a paleo-earthquake surface rupture along Pagri-Duoqing Co graben that may help to understand the seismic activity characteristics of Yadong-Gulu rift.