USGS helps restore public safety in Puerto Rico under harsh conditions
Island-based employees, helpers from mainland must improvise at work and at home
Hurricane Maria expected to alter North Carolina, Virginia and Marylan
USGS Continues Response to Four Hurricanes
USGS field crews in Puerto Rico are preparing for Hurricane Maria
Before, During, and After the Storm, USGS is There
News
How USGS Coral Research in Puerto Rico Captured Rare Oceanographic Data from Hurricane Maria
Special Issue on Reducing Flood Risk by Restoring Coral Reefs
Reducing Flood Risks by Restoring Coral Reefs
Publications
U.S. Geological Survey response to Hurricane Maria flooding in Puerto Rico and characterization of peak streamflows observed September 20–22, 2017
Hurricane Maria struck the island of Puerto Rico on September 20, 2017, as a Category 4 storm. The hurricane traversed the island from southeast to northwest and produced recorded 48-hour rainfall totals of up to 30.01 inches. Estimates of the human death toll range from 2,975 to 4,645, possibly more.The U.S. Geological Survey (USGS) hydrologic monitoring network sustained substantial wind and flo