Articles | Volume 11, issue 6
https://doi.org/10.5194/se-11-2359-2020
https://doi.org/10.5194/se-11-2359-2020
Research article
 | 
08 Dec 2020
Research article |  | 08 Dec 2020

A 2600-year-long paleoseismic record for the Himalayan Main Frontal Thrust (western Bhutan)

Romain Le Roux-Mallouf, Matthieu Ferry, Rodolphe Cattin, Jean-François Ritz, Dowchu Drukpa, and Phuntsho Pelgay

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Latest update: 28 Sep 2023
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Short summary
The chronology of historical earthquakes (from historical documents and geological evidence) is still poorly constrained in the western Himalaya. We carried out a field investigation in SW Bhutan along the India–Bhutan border. Our analysis reveals that Bhutan has experienced at least five great earthquakes during the last 2600 years. Coseismic slip values along the Main Himalayan Thrust for most events reach at least 13 m and suggest that associated magnitudes are in the range of Mw 8.5–9.