Holocene activity and seismic hazard analysis of faults in Damxung, Tibet

• Autorzy: Yang Gang , Tang Yong , Lei Dongning , Hu Qing , Wu Jianchao

Identyfikatory

DOI

10.1007/s11600-020-00426-z

• Języki publikacji: EN

Abstrakty

EN

Based on interpretation of remote sensing and geological feld survey result, three secondary faults are distributed in parallel in Damxung of the southeastern piedmont fault of Nyainqentanglha mountain, which form landform profle across normal faults of graben due to cut platform margin of grade I terrace scarp formation. Through researching the displacements and the collected sediments dates, it is obtained that the horizontal slip rate is about 0.6 mm/a (millimeter per year), and the vertical slip rate is about 1.7 mm/a since 4 ka B.P. (kilo years before present). The northern margin of Damxung basin is a seismic gap, which continuously accumulated strain energy is not released in the M7.5 Damxung earthquake and the M8.0 Yangbajain earthquake. The fracture length of the seismic space can be regarded as the minimum length of potential surface rupture. The maximum moment magnitude of potential earthquakes is at least M6.8.in northern margin of Damxung basin the normal fault magnitude estimation formulas from Wells and Coppersmith (Bull Seismol Soc Am 84(4):974–1002, 1994).

Słowa kluczowe

EN

Tibet plateau; Damxung; seismic hazard; southeastern piedmont fault of Nyainqentanglha mountain; active fault

PL

Wyżyna Tybetańska; Damxung; zagrożenie sejsmiczne

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2020
• Tom: Vol. 68, no. 3
• Strony: 597--604
• Opis fizyczny: Bibliogr. 25 poz.

Twórcy

autor

Yang Gang

• Hubei Key Laboratory of Earthquake Early Warning, Institute of Seismology, China Earthquake Administration, Hongshan Sideway #40, Wuhan 430071, China
• Wuhan Institute of Earthquake Engineering Co., Ltd, Hongshan Sideway #40, Wuhan 430071, China

autor

Tang Yong

• Hubei Key Laboratory of Earthquake Early Warning, Institute of Seismology, China Earthquake Administration, Hongshan Sideway #40, Wuhan 430071, China
• Wuhan Institute of Earthquake Engineering Co., Ltd, Hongshan Sideway #40, Wuhan 430071, China

autor

Lei Dongning

• Hubei Key Laboratory of Earthquake Early Warning, Institute of Seismology, China Earthquake Administration, Hongshan Sideway #40, Wuhan 430071, China
• Wuhan Institute of Earthquake Engineering Co., Ltd, Hongshan Sideway #40, Wuhan 430071, China

autor

Hu Qing

• Hubei Key Laboratory of Earthquake Early Warning, Institute of Seismology, China Earthquake Administration, Hongshan Sideway #40, Wuhan 430071, China
• Wuhan Institute of Earthquake Engineering Co., Ltd, Hongshan Sideway #40, Wuhan 430071, China

autor

Wu Jianchao

• [e-mail]
• Hubei Key Laboratory of Earthquake Early Warning, Institute of Seismology, China Earthquake Administration, Hongshan Sideway #40, Wuhan 430071, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)