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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Filter Total Items: 58
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Year Published: 1997

Accuracy of data for selected categories compiled in the Puerto Rico Water-Use Information Program

Molina-Rivera, Wanda L.
Accuracy of data for selected categories compiled in the Puerto Rico Water-Use Information Program; 1997; FS; 141-96; Molina-Rivera, Wanda L.

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Year Published: 1997

Ground-water use of the principal aquifers in Puerto Rico during calendar year 1990

Molina-Rivera, Wanda L.
Ground-water use of the principal aquifers in Puerto Rico during calendar year 1990; 1997; FS; 188-96; Molina-Rivera, Wanda L.

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Year Published: 1997

Programa de Informacion de Uso de Agua en Puerto Rico:Uso de Abastos de Agua Publicos y Disposicion de Aguas Usadas Durante el Ano de 1990

Molina-Rivera, Wanda L.
Programa de Informacion de Uso de Agua en Puerto Rico:Uso de Abastos de Agua Publicos y Disposicion de Aguas Usadas Durante el Ano de 1990; 1997; FS; 098-96; Molina-Rivera, Wanda L.

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Year Published: 1996

Puerto Rico water-use program : public-supply water use and wastewater disposal during 1990

Molina-Rivera, Wanda L.
Puerto Rico water-use program : public-supply water use and wastewater disposal during 1990; 1996; FS; 098-96; Molina-Rivera, Wanda L.

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Year Published: 1995

Estimated water use in Puerto Rico, 1986-87

Molina-Rivera, W. L.; Dopazo, Teresa
Estimated water use in Puerto Rico, 1986-87; 1995; OFR; 95-358; Molina-Rivera, W. L.; Dopazo, Teresa

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Year Published: 1995

Estimated water use in Puerto Rico, 1988-89

Dopazo, Teresa; Molina-Rivera, W. L.
Estimated water use in Puerto Rico, 1988-89; 1995; OFR; 95-380; Dopazo, Teresa; Molina-Rivera, W. L.

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Year Published: 1991

Advances(?) in mitigating volcano hazards in Latin America

The 1980's were incredible years for volcanology. As a consequence of the Mount St. Helens and other eruptions, major advances in our understanding of volcanic processes and eruption dynamics were made. the decade also witnessed the greatest death toll caused by volcanism since 1902. Following Mount St. Helens, awareness of volcano hazards...

Hall, M.L.

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Year Published: 1990

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.
Attribution: Water, Central Midwest Water Science Center, Dakota Water Science Center, , , Kansas Water Science Center, Minnesota Water Science Center, Pennsylvania Water Science Center, Oklahoma-Texas Water Science Center, Utah Water Science Center, , Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Water Resources, Water Availability and Use Science Program, , , Region 4: Mississippi Basin, Region 6: Arkansas-Rio Grande-Texas-Gulf, , Region 7: Upper Colorado Basin, Region 1: North Atlantic-Appalachian, Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, U.S. Virgin Islands, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, United States of America
National water summary 1987: hydrologic events and water supply and use; 1990; WSP; 2350; Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.

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Year Published: 1982

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.
Earthquake history of the United States; 1982; Federal Government Series; 41-1; edited by Coffman, Jerry L.; von Hake, Carl A.; Stover, Carl W.

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Year Published: 1974

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.

Filter Total Items: 128
land movement
January 16, 2020

Inspecting boardwalk in Ponce, Puerto Rico

USGS scientists were deployed to assess land deformation and movement after a large M6.4 earthquake struck Puerto Rico on January 7, 2020. The boardwalk in Ponce, Puerto Rico was damaged by the quake.

Attribution: Natural Hazards
lateral spread
January 16, 2020

Liquefaction and lateral spread near stream in Ponce, Puerto Rico

USGS scientists were deployed to assess land deformation and movement after a large M6.4 earthquake struck Puerto Rico on January 7, 2020. Here is an example of a lateral spread near a stream in Ponce, Puerto Rico.

land movement
January 16, 2020

Researchers deployed in Puerto Rico after earthquake

Meet the team of USGS scientists who were deployed to assess land deformation and movement after a large M6.4 earthquake struck Puerto Rico on January 7, 2020.

Attribution: Natural Hazards
January 14, 2020

Puerto Rico 2020 — Temporary Seismic Stations Post-Dec 28, 2019 Quake

Dr. Elizabeth Vanacore talks about the installation of temporary seismic stations in southwest Puerto Rico.

Attribution: Natural Hazards
Three people looking at instrumentation
January 14, 2020

Analyzing Earthquake Data in Puerto Rico

USGS scientists Thomas L. Pratt and Alena L. Leads, along with Dr. Elizabeth Vanacore, associate research professor at University of Puerto Rico, analyze data in earthquake monitoring and recording equipment amid aftershocks across the island's southern coast.

Attribution: Natural Hazards
seismic stations
January 10, 2020

Installing a temporary seismometer

Photo (L-R) Jose Cancel of Puerto Rico Seismic Network (PRSN), Alena Leeds of USGS and Javier Santiago of PRSN install a temporary seismometer at Sabana Yeguas in southwestern Puerto Rico on Jan. 10, 2020.

January 6, 2020

How Our Reefs Protect Us: Valuing the Benefits of U.S. Reefs

The degradation of coastal habitats, particularly coral reefs, raises risks by increasing the exposure of coastal communities to flooding hazards during storms. The protective services of these natural defenses are not assessed in the same rigorous economic terms as artificial defenses, such as seawalls, and therefore often are not considered in decision-making. Here we

Aerial imagery of islands are marked to show different data about each island's coast.
January 1, 2020

Puerto Rico Coral Reefs and Coastal Hazard Risk Reduction

Rigorously Valuing the Role of Puerto Rico’s Coral Reefs in Coastal Hazard Risk Reduction

Estimated Annual Benefits

Maps of Puerto Rico showing the distribution of the value of averted direct building damages, indirect economic activity losses, and population annually protected from flooding by coral reefs. Results at 10 m2 resolution are

...
December 8, 2019

How Our Reefs Protect Us: Valuing the Benefits of U.S. Reefs (AD)

The degradation of coastal habitats, particularly coral reefs, raises risks by increasing the exposure of coastal communities to flooding hazards during storms. The protective services of these natural defenses are not assessed in the same rigorous economic terms as artificial defenses, such as seawalls, and therefore often are not considered in decision-making. Here we

Stream gaging in Puerto Rico after Tropical Storm Karen: computing gage height
September 25, 2019

Stream gaging in PR after Tropical Storm Karen: computing gage height

Stream gaging in Puerto Rico after Tropical Storm Karen: computing gage height – Manual Rosario does some math required to compute the gage height September 25.

Stream gaging in Puerto Rico after Tropical Storm Karen: recording gage height
September 25, 2019

Stream gaging in PR after Tropical Storm Karen: recording gage height

Stream gaging in Puerto Rico after Tropical Storm Karen: recording gage height – A ding-wop, a weight attached to measuring devices, was used to measure the gage height, September 25.

Stream gaging in Puerto Rico after Tropical Storm Karen: staging the measurement
September 25, 2019

Stream gaging in PR after Tropical Storm Karen: staging measurement

Stream gaging in Puerto Rico after Tropical Storm Karen: staging the measurement – Manuel Rosario, with the Caribbean-Florida Water Science Center, stages an acoustic Doppler current profiler (ADCP) to measure high flow September 25.

Filter Total Items: 60
US Topo map of the Cass, West Virginia quadrangle, March 2014.
April 24, 2014

US Topo maps now have a crisper, cleaner design - enhancing readability of maps for online and printed use. Map symbols are easier to read over the digital aerial photograph layer whether the imagery is turned on or off. Improvements to symbol definitions (color, line thickness, line symbols, area fills), layer order, and annotation fonts are additional features of this supplemental release.

USGS science for a changing world logo
October 13, 2009

Five giant non-native snake species would pose high risks to the health of ecosystems in the United States should they become established here, according to a U.S. Geological Survey (USGS) report released today.
The USGS report details the risks of nine non-native boa, anaconda and python species that are invasive or potentially invasive in the United States.

USGS
November 19, 1999

Although Hurricane Lenny brought high winds and heavy rains to Puerto Rico, residents in the vicinity of Lago La Plata were spared the hazards and inconveniences of an unnecessary evacuation Wednesday morning, in part because of the efforts of U.S. Geological Survey Caribbean District Office personnel in advance of, and during the storm.

USGS
October 21, 1999

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.

USGS
October 19, 1999

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
September 17, 1999

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.

USGS
September 30, 1998

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.

USGS
September 22, 1998

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.

USGS
July 21, 1998

During the week of July 13-17, the U.S. Geological Survey (USGS) examined the coral reefs around Culebra, Puerto Rico.

USGS
September 12, 1997

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.

USGS
September 11, 1996

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.