Field observations of ground failure triggered by the 2020 Puerto Rico earthquake sequence

This dataset consists of over 800 field observations of ground failure (landslides, lateral spreading, and liquefaction) and other damage triggered by the 2019-2020 Puerto Rico earthquake sequence. The sequence started with a M4.7 earthquake on 28 December 2019, followed by many more earthquakes, including 15 larger than M5 (as of 7 July 2020). The M6.4 mainshock, which is thought to have triggered much of the observed ground failure, occurred on 7 January 2020. Most field reconnaissance efforts documented here took place as soon as possible after the mainshock, from 12-18 January 2020, to attempt to capture ephemeral data before evidence was destroyed by natural forces or repairs, but observations continued to...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, Guayanilla, Guánica, All tags... Landslide Hazards Program, Peñuelas, Ponce, Puerto Rico, USGS, USGS Science Data Catalog (SDC), United States, earth science, earthquake hazard, geophysics, landslides, lateral spread, liquefaction, none, rock fall, seismic hazard, seismology, Fewer tags