By Logan Knoper, Marin Clark, William Medwedeff, Kirk Townsend, Weibing Gong, University of Michigan; Dimitrios Zekkos, University of California, Berkeley; Dalia Kirschbaum (NASA-Goddard).
One hundred twenty landslides were mapped and inferred to have occurred during the period of strong ground shaking related to the January 7th, 2020 Puerto Rico Mw6.4 earthquake. Landslides are widely dispersed with the highest concentration in the southwestern portion of the island, nearest the epicenter. Landslides are widely distributed up to ~ 40 km north of the epicenter. Landslide size distribution is smaller than what is observed for other recent coseismic events. Most failures appear to be shallow debris slides, involving soil and weathered rock, without significant runout. Landslides primarily occur in Tertiary age limestone units.
View the Map: https://maps.disasters.nasa.gov/arcgis/home/item.html?id=e7789c6ab255434996e4e3459f80c6fa
