Earthquake Engineering Research Institute
Learning From Earthquakes

GEER Report: Geotechnical Field Reconnaissance: Gorkha (Nepal) Earthquake of April 25 2015 and Related Shaking Sequence

February 7, 2018

By Youssef M.A. Hashash (UIUC), Binod Tiwari (CSF), Robb E. S. Moss (CalPoly), Domniki Asimaki (Caltech), Kevin B. Clahan (LCI), D. Scott Kieffer (TUGraz), Doug S. Dreger (UCB), Amy Macdonald (TT), Chris M. Madugo (PG&E), H. Benjamin Mason (OSU), Menzer Pehlivan (MRCE), Deepak Rayamajhi (OSU), Indra Acharya (TU) and Basanta Adhikari (TU).

August 2015, GEER.

The April 25, 2015 Gorkha (Nepal) Earthquake and its related aftershocks had a devastating impact on Nepal. The earthquake sequence resulted in nearly 9,000 deaths, tens of thousands of injuries, and has left hundreds of thousands of inhabitants homeless. With economic losses estimated at several billion US dollars, the financial impact to Nepal is severe and the rebuilding phase will likely span many years.

The Geotechnical Extreme Events Reconnaissance (GEER) Association assembled a reconnaissance team under the leadership of D. Scott Kieffer, Binod Tiwari and Youssef M.A. Hashash to evaluate geotechnical impacts of the April 25, 2015 Gorkha Earthquake and its related aftershocks. The focus of the reconnaissance was on time-sensitive (perishable) data, and the GEER team included a large group of experts in the areas of Geology, Engineering Geology, Seismology, Tectonics, Geotechnical Engineering, Geotechnical Earthquake Engineering, and Civil and Environmental Engineering. The GEER team worked in close collaboration with local and international organizations to document earthquake damage and identify targets for detailed follow up investigations.

Read the Report: Geotechnical Field Reconnaissance: Gorkha (Nepal) Earthquake of April 25 2015 and Related Shaking Sequence