Slip Rate and Paleoseismic History of the Tianjingshan Fault, Northeast Tibet, China

Date: 4/24/2019

Time: 06:00 PM

Room: Grand Ballroom

The western and central segments of the Tianjingshan fault zone in conjunction with the more southerly Haiyuan fault accommodate sinistral deformation in the northeast Tibet Plateau. The Tianjingshan fault extends for ~240 km, and a portion of the fault produced a M7.5 earthquake in 1709. The Late Quaternary slip rate of the left-lateral Tianjingshan fault is constrained to 1.1 +/- 0.2 mm/yr based on measurements of dated displaced landforms, offset measurements, and GPS data. Results from five trenches across the western Tianjingshan fault provide evidence of 6 ~M7.5 paleoseismic events with an average recurrence interval of ~5000 years.

Presenting Author: Ian K. D. Pierce

Authors