Joint Virtual Assessment Team; Rodgers, J; Gunay, S; Tlau, L; Archbold, J; Kumar, H; Arteta, C; + view all Joint Virtual Assessment Team; Rodgers, J; Gunay, S; Tlau, L; Archbold, J; Kumar, H; Arteta, C; Caballero Calderon, J; Gho, D; Fields, R; Fisher, E; Lwin, H; Lotay, Y; Carrillo, J; Engelbrecht, J; Stingari, C; Anderson, S; Zou, J; Thawng, Z; Balanchandra, A; Rogers, N; Russell, J; Zhang, D; Frost, D; Giardina, G; Aktas, Y; Ortiz, A; Merino-Pena, Y; Romao, X; Greco, F; Free, M; Leelataviwat, S; Byun, J; Wilkinson, S; Duran, B; Vargas, L; - view fewer (2025) StEER: M7.7 Myanmar Earthquake. Joint Preliminary Virtual Reconnaissance Report (J-PVRR). NHERI DesignSafe: Austin, Texas, USA.

Text M7.7 Myanmar Earthquake J-PVRR.pdf - Published Version Access restricted to UCL open access staff Download (16MB)

Abstract

The M7.7 March 28, 2025 Mandalay, Myanmar earthquake occurred at 12:50 PM local time (06:20 UTC), causing extensive damage and over 3500 fatalities in central Myanmar, and isolated damage as far as Bangkok, Thailand, over 500 km from the southern end of the rupture. The M7.7 event appears to have ruptured approximately 460 km of the right-lateral strike-slip Sagaing Fault, the most active and seismically hazardous fault in Myanmar. Significant ground failure effects have been observed and documented throughout the area impacted by the earthquake. Numerous buildings collapsed or experienced structural damage in Mandalay and Nay Pyi Taw, and in smaller cities such as Sagaing, Kyaukse, and Amarapura. In response, StEER activated at Level 1 and joined a consortium of several organizations to form a Joint Virtual Assessment Team (J-VAT) that includes members of StEER, the Geotechnical Extreme Events Reconnaissance (GEER) Association, the Earthquake Engineering Research Institute (EERI) Learning from Earthquakes (LFE) Program, the UK’s Earthquake Engineering Field Investigation Team (EEFIT), GeoHazards International (GHI), and the Asian Institute of Technology (AIT) in Bangkok. The J-VAT was charged with the production of the primary product of the joint response to this event: this Joint Preliminary Virtual Reconnaissance Report (J-PVRR), intended to: (1) provide an overview of the March 28, 2025 M7.7 Myanmar earthquake and it societal impacts; (2) overview the regulatory environment and construction practices in the affected areas; (3) document its geotechnical dimensions and impacts to the built environment by synthesizing insights from remote sensing and preliminary reports of geotechnical failures and damage to land, buildings and infrastructure; and (4) offer recommendations for continued study of this event. This project encompasses the products of StEER's Level 1 response to this event the Joint Preliminary Virtual Reconnaissance Report (J-PVRR) with corresponding Media Repository.

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