Earthquake Engineering Research Institute
Learning From Earthquakes

Puerto Rico Earthquake Sequence December 2019 to January 2020: Field Assessment Structural Team Early Access Reconnaissance Report

March 20, 2020

Field Assessment Structural Team (FAST) Lead: Eduardo Miranda, Stanford University. 

Sturctural Engineering Extreme Events Reconnaissance, February 28, 2020.

A sequence of earthquakes occurred in the southwestern region of Puerto Rico, initiating at the end of 2019. The ground shaking from the earthquakes damaged over 10,000 structures, including the complete collapse of at least 80 structures, most of which were single-family residential units. In addition, several bridges, roads and other infrastructure were also damaged or destroyed and two thirds of the island lost power as a result of the Mw 6.4 earthquake on January 7th. This Early Access Reconnaissance Report (EARR) is StEER’s second product for this event. It provides an overview of the sequence of earthquakes and preliminary findings based on the data and observations generated by the Field Assessment Structural Team (FAST). The FAST documented the performance of 60 structures located in six different cities along the southwestern coast of Puerto Rico between the cities of Ponce and Mayagüez.

Read the Report: https://www.designsafe-ci.org/data/browser/public/designsafe.storage.published/PRJ-2712