Articles | Volume 11, issue 6
https://doi.org/10.5194/se-11-2359-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-11-2359-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
08 Dec 2020
Research article |
| 08 Dec 2020
| 08 Dec 2020
A 2600-year-long paleoseismic record for the Himalayan Main Frontal Thrust (western Bhutan)
Romain Le Roux-Mallouf
CORRESPONDING AUTHOR
Geolithe, Research and Development Department, Rue des Becasses, 38920, Crolles, France
Matthieu Ferry
Géosciences Montpellier, CNRS, UMR5243, Université de Montpellier, Place E. Bataillon, 34095 Montpellier, France
Rodolphe Cattin
Géosciences Montpellier, CNRS, UMR5243, Université de Montpellier, Place E. Bataillon, 34095 Montpellier, France
Jean-François Ritz
Géosciences Montpellier, CNRS, UMR5243, Université de Montpellier, Place E. Bataillon, 34095 Montpellier, France
Dowchu Drukpa
Géosciences Montpellier, CNRS, UMR5243, Université de Montpellier, Place E. Bataillon, 34095 Montpellier, France
Seismology and Geophysics Division, Department of Geology and Mines, P.O. Box 173, 9 Thimphu, Bhutan
Phuntsho Pelgay
Seismology and Geophysics Division, Department of Geology and Mines, P.O. Box 173, 9 Thimphu, Bhutan
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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The chronology of historical earthquakes (from historical documents and geological evidence) is still poorly constrained in the western Himalaya.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.
The chronology of historical earthquakes (from historical documents and geological evidence) is...
