Unified Interior Regions
Puerto Rico
We conduct impartial, multi- and interdisciplinary research and monitoring on a large range of natural-resource issues that impact the quality of life of citizens and landscapes of the Southeastern United States and the Caribbean region.
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National water summary 1987: Hydrologic events and water supply and use
Water use in the United States, as measured by freshwater withdrawals in 1985, averaged 338,000 Mgal/d (million gallons per day), which is enough water to cover the 48 conterminous States to a depth of about 2.4 inches. Only 92,300 Mgal/d, or 27.3 percent of the water withdrawn, was consumptive use and thus lost to immediate further use; the...
Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.Earthquake history of the United States
This publication is a history of the prominent earthquakes in the United States from historical times through 1970. It supersedes all previous editions with the same or similar titles (see page ii) and, in addition to updating earthquake listings through 1970, contains several additions and corrections to previous issues. It also brings together...
Coffman, Jerry L.; von Hake, Carl A.; Stover, Carl W.; Coffman, Jerry L.; Von Hake, Carl A.; Stover, Carl W.New seismic study begins in Puerto Rico
A new seismological project is now underway in Puerto Rico to provide information needed for accurate assessment of the island's seismic hazard. The project should also help to increase understanding of the tectonics and geologic evolution of the Caribbean region. The Puerto Rico Seismic Program is being conducted by the Geological Survey with...
Tarr, A.C.Stream gaging in PR after Tropical Storm Karen: finishing the visit
Stream gaging in Puerto Rico after Tropical Storm Karen: finishing the visit – Manuel Rosario, with the Caribbean-Florida Water Science Center, walks to the gage house after completing a discharge measurement September 25.
Stream gaging in Puerto Rico after Tropical Storm Karen: tethered ADCP
Stream gaging in Puerto Rico after Tropical Storm Karen: tethered ADCP – A tethered acoustic Doppler current profiler (ADCP) is pulled through a cross section of Rio de La Plata near Toa Alta, Puerto Rico, September 25, 2019. Hydrologic technicians with the Caribbean-Florida Water Science Center visited multiple USGS stream gage sites to make high flow
...Stream gaging in Puerto Rico after Tropical Storm Karen: computer
Stream gaging in Puerto Rico after Tropical Storm Karen: computer – Gage height and precipitation data recorded by sensors and measured manually are logged into an electronic notebook, September 25.
Stream gaging in PR after Tropical Storm Karen: Crest Stage Gage
Stream gaging in Puerto Rico after Tropical Storm Karen: Crest Stage Gage – The distance of a cork line from a known gage height is measured September 25. The cork line was left on a crest stage gage after a high flow event.
Stream gaging in Puerto Rico after Tropical Storm Karen: Gage house
Stream gaging in Puerto Rico after Tropical Storm Karen: Gage house – Manuel Rosario, with the Caribbean-Florida Water Science Center, checks the sensors in the gage house September 25.
Jim Smith Inside Lucchetti Dam in Puerto Rico
Jim Smith working on cabling inside of Lucchetti dam in Puerto Rico, assisting the Puerto Rico Strong Motion Program with Hurricane Maria recovery efforts.
Camera 1 Snapshot at Tres Palmas, Puerto Rico
Video camera snapshot at Tres Palmas in Rincón, on the west coast of Puerto Rico.
Tres Palmas, Rincon, Puerto Rico
Photograph collected from a UAS flown over the beach at Tres Palmas in Rincón, Puerto Rico.
National Oil and Gas Assessment Provinces
This is a graphic from the USGS National Oil and Gas Assessment Explorer application, which allows user to drill into 70 oil and gas assessment provinces throughout the United States.
Isla Verde Video Camera 4 Variance Image
Variance image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and shows areas of more movement as brighter colors.
Isla Verde Video Camera 1 Bright Image
Bright image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and tracks the brightest pixels through 10 minutes of motion.
Isla Verde Video Camera 2 Bright Image
Bright image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and tracks the brightest pixels through 10 minutes of motion.
Due to an unprecedented decision by the U.S. Geological Survey representative in Puerto Rico, two USGS employees in Guaynabo have actually moved to the city’s civil defense facility and will remain there until the latest in a series of hurricanes (Jose) no longer appears to threaten the lives and property of the residents of Puerto Rico and the Virgin Islands.
Today, as Hurricane Jose was upgraded from a tropical storm, the U. S. Geological Survey in Puerto Rico was monitoring the storm’s path and intensity very closely. If the hurricane threatens Puerto Rico later this week, as predicted, the USGS is prepared to provide critical information to local government and emergency management officials responsible for protecting the lives and property of Puert
USGS scientists from the Patuxent Wildlife Research Center, the National Wetlands Research Center and the Florida and Caribbean Science Center are gearing up to assess Hurricane Floyd damage to wildlife and habitat from Florida to Maine.
Hurricane Georges approached Puerto Rico on September 21, 1998 as a Category 3 hurricane. According to the National Weather Service, Hurricane Georges had sustained winds between 110 to 130 mph and gusts that probably exceeded 150 mph in the mountains of central Puerto Rico.
Electricity may be out and communication lines cut off by the tremendous winds and torrential rains of Hurricane Georges, but thanks to good foresight in "hardening" monitoring systems by the U.S. Geological Survey, real-time streamflow data in Puerto Rico continued to flow to reservoir operators, emergency officials, and others who need streamflow information and need it fast.
During the week of July 13-17, the U.S. Geological Survey (USGS) examined the coral reefs around Culebra, Puerto Rico.
Federal and local biologists captured and tagged three manatees in early August near Mayaguez, Puerto Rico, as part of efforts to better protect West Indian manatees inhabiting this Caribbean island.
The especially wet Hurricane Hortense has U.S. Geological Survey hydrologists and technicians working around the clock to measure its impact on the rivers of Puerto Rico. The Rio de la Plata in northeastern Puerto Rico, for example, has reached its highest level ever, exceeding the previous record high flow of Jan. 5, 1992, when the river reached a flow of 82 billion gallons per day.