Co-Seismic Surface Rupture and Recurrence Interval of Large Earthquakes along Damaoyaba-Litang Segment of the Litang Fault on the Eastern Margin of the Tibetan Plateau in China

Wang, Shiyuan; Zhou, Ru; Liang, Mingjian; Shao, Lei; Liu, Nina; Long, Jianyu

doi:10.1007/s12583-021-1425-z

Cited by 11 publications

(6 citation statements)

References 12 publications

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Section: Regional Seismotectonic Settingmentioning

confidence: 99%

“…The LTF, which is mostly parallel to the XF, is also quite active, with three historical earthquakes of M >7 since 1700 (Zhou et al, 2015;Chevalier et al, 2016;Wang et al, 2021). Among these earthquakes, the 1890 Mw ~7.3 earthquake produced a surface rupture zone with a length of ~71 km (Wang et al, 2021), and the latest large earthquake occurred in 1948 (Ms 7 1 / 4 ) with an ~40-km surface rupture (Xu et al, 2005a). The LTF is a dominantly left-lateral strike-slip fault with a late Quaternary strike-slip rate of ~2-4 mm/yr, as evidenced via geological and dating investigations (Xu et al, 2005a;Zhou et al, 2005Zhou et al, , 2007Gao, 2021;Wang et al, 2021).…”

Section: Regional Seismotectonic Settingmentioning

confidence: 99%

“…Among these earthquakes, the 1890 Mw ~7.3 earthquake produced a surface rupture zone with a length of ~71 km (Wang et al, 2021), and the latest large earthquake occurred in 1948 (Ms 7 1 / 4 ) with an ~40-km surface rupture (Xu et al, 2005a). The LTF is a dominantly left-lateral strike-slip fault with a late Quaternary strike-slip rate of ~2-4 mm/yr, as evidenced via geological and dating investigations (Xu et al, 2005a;Zhou et al, 2005Zhou et al, , 2007Gao, 2021;Wang et al, 2021). Recent trench excavations have revealed that four paleoseimic events have occurred since the Holocene, and the recurrence intervals were ~1,415 yr, ~1,104 yr, and ~775 yr (Wang et al, 2021).…”

Section: Regional Seismotectonic Settingmentioning

confidence: 99%

“…The LTF is a dominantly left-lateral strike-slip fault with a late Quaternary strike-slip rate of ~2-4 mm/yr, as evidenced via geological and dating investigations (Xu et al, 2005a;Zhou et al, 2005Zhou et al, , 2007Gao, 2021;Wang et al, 2021). Recent trench excavations have revealed that four paleoseimic events have occurred since the Holocene, and the recurrence intervals were ~1,415 yr, ~1,104 yr, and ~775 yr (Wang et al, 2021). Historical records indicate that two large earthquakes, namely, the 1,642-1,654 M ≥7 Luolong earthquake and the 1,791-1,804 M 6 3 / 4 Bianba earthquake (Science and Technology Committee of the Tibetan Autonomous Region, 1982; Department of Earthquake Disaster Prevention and State Seismological Bureau, 1995), have occurred along the BLF.…”

Section: Regional Seismotectonic Settingmentioning

confidence: 99%

“…In recent years, the increasingly abundant observation data also shows that the interior of the QTB and CDB are not rigid and fixed, and many internal faults or local segments, for example, LTF, BTF, and BLF, also exhibit obvious Holocene activity characteristics and relatively strong seismogenic capacity, as evidenced from geological, paleoseismic, seismic data investigations (Gao, 2021;Wang et al, 2021;Han, 2022a;Han et al, 2022b;Ren et al, 2022b). For example, the BTF undergoes a dextral rate of ~1.3-2.7 mm/yr during late Quaternary (Zhou et al, 2005), and the LTF is a predominantly left-lateral strike-slip fault with a late Quaternary strike-slip rate ranging from ~2-4 mm/yr (Xu et al, 2005b;Zhou et al, 2005;Zhou et al, 2007).…”

Section: Figure 15mentioning

confidence: 99%

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Paleoearthquakes of the Yangda-Yaxu fault across the Nujiang suture and Lancang river suture zone, southeastern Tibetan Plateau

Han¹,

Chen²,

Li³

et al. 2022

Front. Earth Sci.

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The WNW-trending Yangda-Yaxu fault (YYF) is located in the interior of the Qiangtang block (QTB). The YYF cuts through the Nujiang suture and Lancang river suture zone and divides Nujiang fault (NF) and Lancangjiang fault (LCJF) into two sections with significantly different activity levels, suggesting that the YYF may function as a specific structure in this region. In addition, a recent work argues that the YYF plays an important role in strain partitioning in southeastern Tibet and poses a high surface-faulting risk to the Sichuan-Tibet railway. However, no M ≥ 5.0 earthquakes have been recorded, and no palaeoseismic research has been conducted along the fault, leading to limited knowledge regarding its rupture behavior, which is essential for understanding regional tectonic deformation and assessing the regional seismic potential. In this study, we constrained the timings and recurrence intervals of late Quaternary paleoseismic events along the YYF for the first time. Through trench excavations and exposure cleaning combined with radiocarbon dating, five faulting events were identified, namely, E1 through E5 from youngest to oldest (831–1,220, 3,307–6,703, 9,361–10,286, 12,729–14,651, and before 14,651 yr BP). The recurrence interval of major earthquakes along the YYF follows a quasi-periodic pattern with an interval of ∼4,000 yr. Combining the clear linear geomorphic features along the fault and the paleoearthquake results in this paper, we believe that YYF is a newly-generated active fault, and has a significant control effect on the late Quaternary evolution of the NF and the LCJF. Further analysis revealed that the YYF also plays an important role in accommodating crustal deformation.

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Section: Regional Seismotectonic Settingmentioning

confidence: 99%

Section: Regional Seismotectonic Settingmentioning

confidence: 99%

Section: Regional Seismotectonic Settingmentioning

confidence: 99%

Section: Regional Seismotectonic Settingmentioning

confidence: 99%

Section: Figure 15mentioning

confidence: 99%

See 3 more Smart Citations

Paleoearthquakes of the Yangda-Yaxu fault across the Nujiang suture and Lancang river suture zone, southeastern Tibetan Plateau

Han¹,

Chen²,

Li³

et al. 2022

Front. Earth Sci.

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Preface to the Special Issue on Geo-Disasters

Xu¹,

Xu²,

Huang

2021

J. Earth Sci.

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Exploring the mechanism of natural disasters and fighting against natural disasters are the eternal themes for human survival and development. Geo-disasters are one kind of natural hazards, including landslides, debris flows, earthquakes, liquefactions, which can result in serious causalities and economic loss. Therefore, geo-disaster prevention and reduction has been a grand research topic for many decades and a large number of achievements have been made in detection, monitoring, early warning and risk assessment of geo-disasters (

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The Interpretation of Seismogenic Fault of the Maduo Mw 7.3 Earthquake, Qinghai Based on Remote Sensing Images—A Branch of the East Kunlun Fault System

Liu

Ren

et al. 2022

J. Earth Sci.

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Co-Seismic Surface Rupture and Recurrence Interval of Large Earthquakes along Damaoyaba-Litang Segment of the Litang Fault on the Eastern Margin of the Tibetan Plateau in China

Cited by 11 publications

References 12 publications

Paleoearthquakes of the Yangda-Yaxu fault across the Nujiang suture and Lancang river suture zone, southeastern Tibetan Plateau

Paleoearthquakes of the Yangda-Yaxu fault across the Nujiang suture and Lancang river suture zone, southeastern Tibetan Plateau

Preface to the Special Issue on Geo-Disasters

The Interpretation of Seismogenic Fault of the Maduo Mw 7.3 Earthquake, Qinghai Based on Remote Sensing Images—A Branch of the East Kunlun Fault System

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