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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Magnitude 6.4 Earthquake in Puerto Rico: Shakemap
The magnitude 6.4 earthquake was widely felt. The ShakeMap, showed strong to very strong shaking occurred across parts of Southern Puerto Rico closest to the event and moderate shaking occurred across the rest of the island.
U.S. Seismic Hazard Maps – Puerto Rico and the U.S. Virgin Islands, Samoa and the Pacific Islands, and Guam and Northern Mariana Islands
Seismic hazard maps for Puerto Rico and the U.S. Virgin Islands, Samoa and the Pacific Islands, and Guam.
Circulation and Sediment, Nutrient, Contaminant, and Larval Dynamics on Reefs
The overall objective of this research effort is to better understand how circulation and sediment processes impact coral reefs.
Coral Reef Project: Puerto Rico
To better understand how waves move across coral reefs and cause flooding on tropical shorelines, USGS scientists have installed video cameras and oceanographic instruments off San Juan and Rincón, Puerto Rico. Their work is part of a study funded by USGS after Hurricanes Irma and Maria. The offshore instruments measure wave heights and speeds; the onshore video cameras show where waves break...
Using Video Imagery to Study Wave Dynamics: Isla Verde
USGS scientists installed video cameras atop a building and oceanographic instruments off San Juan, Puerto Rico, to better understand how waves move across coral reefs and cause flooding on tropical shorelines.
Information by Region-Puerto Rico and the Virgin Islands
United States Assessments of Undiscovered Oil and Gas Resources
USGS Energy Resources Program provides periodic assessments of the oil and natural gas endowment of the United States and the World. This website provides access to new, prioritized, assessment results and supporting data for the United States, as part of the Energy Policy and Conservation Act (EPCA).
Geographic Information Systems (GIS)
Maps are an integral part of water-science activities and the Caribbean Florida Water Science Center utilizes and produces maps for all types of hydrologic projects and in information dissemination. Maps are also helpful for providing the user with a geographical reference to our water information.
Water Quality for Puerto Rico
The U.S. Geological Survey operates and maintains approximately 7,300 streamgages nationwide, 194 in Puerto Rico, which provide long-term, accurate, and unbiased information that meets the needs of many diverse users. The USGS collects the streamflow data needed by Federal, State, and local agencies for planning and operating water-resources projects and regulatory programs.
The links...
Hurricanes
Preventing flood hazards, such as hurricane-induced tidal surge, from becoming human disasters requires an understanding of the relative risks floods pose to specific communities and knowledge of the processes by which flood waters rise, converge, and abate. Historically, hurricane-induced tidal surge has been documented through measurement of high-water marks left on structures or vegetation...
Dam Failure Analysis for the Lago El Guineo Dam, Puerto Rico
The USGS Scientific Investigations Report 2016-5070 describing a hydrologic and hydraulic study to assess the potential hazard to human life and property associated with the hypothetical failure of the Lago El Guineo Dam was completed by the USGS in cooperation with the Puerto Rico Electric Power Authority.
CFWSC Science Highlights
The purpose of this section is to draw your attention to important information that the CFWSC are conducting in your city.
Boundaries Data
Boundaries data or governmental units represent major civil areas including states, counties, Federal, and Native American lands, and incorporated places such as cities and towns.
Hydrography Data
The National Hydrography Dataset (NHD) and Watershed Boundary Dataset (WBD) are used to portray surface water on The National Map.
The United States Interagency Elevation Inventory (USIEI)
The USIEI is a comprehensive, nationwide listing of known high-accuracy topographic and bathymetric data for the United States and its territories. The project is a collaborative effort of the USGS and NOAA with contributions from other federal agencies. The inventory supports the 3D Elevation Program and the Integrated Ocean and Coastal Mapping effort. This resource is updated in Spring and...
Elevation Data
The 3DEP products and services available through The National Map consist of lidar point clouds (LPC), standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.
Orthoimagery Data
Orthoimagery data typically are high resolution aerial images that combine the visual attributes of an aerial photograph with the spatial accuracy and reliability of a planimetric map. The National Map offers public domain, 1-meter orthoimagery for the conterminous United States with many urban areas and other locations at 2-foot or finer resolution.
The National Map Small-Scale Collection
The National Map offers a collection of small-scale datasets, most of which are at 1:1,000,000. The National Map publishes two data collections at one million-scale: one for Global Map users and one for National Map users. In terms of vector geometry, the lines, points, and areas in these data collections are identical. The difference is in the attributes assigned to these features.
Science Data Integration and Delivery
Consistent synthesis, integration, storage, and availability of fundamental data is critical to meeting the needs of USGS Science. We develop databases for hydrography, topography, invasive species, water resources, and many other datasets utilized by resource managers.
Source, use and disposition of freshwater in Puerto Rico, 2010
Introduction Water diverted from streams and pumped from wells constitutes the main source of water for the 78 municipios of the Commonwealth of Puerto Rico. A better understanding of water-use patterns is needed, particularly regarding the amount of water used, where and how this water is used and disposed, and how human activities affect water...
Molina, Wanda L.
Event sedimentation in low-latitude deep-water carbonate basins, Anegada passage, northeast Caribbean
The Virgin Islands and Whiting basins in the Northeast Caribbean are deep, structurally controlled depocentres partially bound by shallow-water carbonate platforms. Closed basins such as these are thought to document earthquake and hurricane events through the accumulation of event layers such as debris flow and turbidity current deposits and the...
Chaytor, Jason D.; ten Brink, Uri S.
Core data from offshore Puerto Rico and the U.S. Virgin Islands
In 2008, as a collaborative effort between Woods Hole Oceanographic Institution and the U.S. Geological Survey, 20 giant gravity cores were collected from areas surrounding Puerto Rico and the U.S. Virgin Islands. The regions sampled have had many large earthquake and landslide events, some of which are believed to have triggered tsunamis. The...
Hoy, Shannon K.; Chaytor, Jason D.; ten Brink, Uri S.
Estimated water use in Puerto Rico, 2010
Water-use data were aggregated for the 78 municipios of the Commonwealth of Puerto Rico for 2010. Five major offstream categories were considered: public-supply water withdrawals and deliveries, domestic and industrial self-supplied water use, crop-irrigation water use, and thermoelectric-power freshwater use. One instream water-use category also...
Molina-Rivera, Wanda L. Vs30 and spectral response from collocated shallow, active- and passive-source Vs data at 27 sites in Puerto Rico
Shear‐wave velocity (VS) and time‐averaged shear‐wave velocity to 30 m depth (VS30) are the key parameters used in seismic site response modeling and earthquake engineering design. Where VS data are limited, available data are often used to develop and refine map‐based proxy models of VS30 for predicting ground‐motion intensities. In this paper,...
Odum, Jack K.; Stephenson, William J.; Williams, Robert A.; von Hillebrandt-Andrade, Christa The northwest trending north Boquerón Bay-Punta Montalva Fault Zone; A through going active fault system in southwestern Puerto Rico
The North Boquerón Bay–Punta Montalva fault zone has been mapped crossing the Lajas Valley in southwest Puerto Rico. Identification of the fault was based upon detailed analysis of geophysical data, satellite images, and field mapping. The fault zone consists of a series of Cretaceous bedrock faults that reactivated and deformed Miocene limestone...
Roig‐Silva, Coral Marie; Asencio, Eugenio; Joyce, James
Abstracts for the October 2012 meeting on Volcanism in the American Southwest, Flagstaff, Arizona
Though volcanic eruptions are comparatively rare in the American Southwest, the States of Arizona, Colorado, New Mexico, Nevada, and Utah host Holocene volcanic eruption deposits and are vulnerable to future volcanic activity. Compared with other parts of the western United States, comparatively little research has been focused on this area, and...
Lowenstern, Jacob B.
Final report and archive of the swath bathymetry and ancillary data collected in the Puerto Rico Trench region in 2002 and 2003
In 2002 and 2003, the U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA), conducted three exploration cruises that mapped for the first time the morphology of the entire tectonic plate boundary stretching from the Dominican Republic in the west to the Lesser Antilles in the east, a...
ten Brink, Uri S.; Danforth, William W.; Polloni, Christopher F. Significant motions between GPS sites in the New Madrid region: implications for seismic hazard
Position time series from Global Positioning System (GPS) stations in the New Madrid region were differenced to determine the relative motions between stations. Uncertainties in rates were estimated using a three‐component noise model consisting of white, flicker, and random walk noise, following the methodology of Langbein, 2004. Significant...
Frankel, Arthur; Smalley, Robert; Paul, J.
Accounts of damage from historical earthquakes in the northeastern Caribbean to aid in the determination of their location and intensity magnitudes
Earthquakes have been documented in the northeastern Caribbean since the arrival of Columbus to the Americas; written accounts of these felt earthquakes exist in various parts of the world. To better understand the earthquake cycle in the Caribbean, the records of earthquakes in earlier catalogs and historical documents from various archives,...
Flores, Claudia H.; ten Brink, Uri S.; Bakun, William H. New "Risk-Targeted" Seismic Maps Introduced into Building Codes
Throughout most municipalities of the United States, structural engineers design new buildings using the U.S.-focused International Building Code (IBC). Updated editions of the IBC are published every 3 years. The latest edition (2012) contains new "risk-targeted maximum considered earthquake" (MCER) ground motion maps, which are enabling...
Luco, Nicholas; Garrett, B.; Hayes, J. Historical perspective on seismic hazard to Hispaniola and the northeast Caribbean region
We evaluate the long-term seismic activity of the North-American/Caribbean plate boundary from 500 years of historical earthquake damage reports. The 2010 Haiti earthquakes and other earthquakes were used to derive regional attenuation relationships between earthquake intensity, magnitude, and distance from the reported damage to the epicenter,...
ten Brink, Uri S.; Bakun, W.H.; Flores, C.H.
Congressional event following the 6.4 earthquake in Puerto Rico
Congressional event following the 6.4 earthquake in Puerto Rico held on Jan. 20, 2020. Dr. Jonathan Godt (USGS) and Dr. Elizabeth A. Vanacore (Red Sismica Puerto Rico) answered questions to congressmen: Yauco's major, Bill Posey, Jenniffer González Colón, Stephanie Murphy, Donna Shalala
Mapping the Ground Failure
My name is Kate Allstadt. I’m a research geophysicist with the U.S. Geological Survey in Golden, Colorado, and I'm here in Puerto Rico in the city of Ponce with some colleagues and we're here to map the ground failure that occurred due to this earthquake so we're mapping things like Rock Falls and landslides and liquefaction, as well as lateral spreading which is what we
USGS visits areas affected by the 6.4 Puerto Rico earthquake
Part of the USGS Earthquake Response Team visiting areas affected by the 6.4 earthquake. Place: Guánica Boardwalk. From left to right: Donyelle Davis, Dianne López, Jonathan Godt, Alex Grant
Landslide along road near 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. This landslide was discovered along a neighborhood road near Ponce, Puerto Rico.
Landslide near 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. This landslide was discovered along a neighborhood road near Ponce, Puerto Rico.
House damaged by rock fall in 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 rockfall damage to a house in Ponce, Puerto Rico.
Rockfall 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 rockfall material in the yard of a house in Ponce, Puerto Rico.
Lateral Spread 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.
Lateral spread near creek in Ponce, Puerto Rico
USGS scientists, like Dr. Alex Grant, 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 creek in Ponce, Puerto Rico.
House marking in Puerto Rico
Houses were damaged during the M6.4 earthquake that struck Puerto Rico on January 7, 2020. Houses were tagged by local officials for whether they were safe or not.
2020 Puerto Rico Earthquake Sequence (as of Jan. 16, 2020)
Earthquakes detected between December 28, 2019 as of January 16, 2020. Subject to updates.
>300 M3+earthquakes recorded*
since Dec. 28, 2019 (within 40km) strong enough to be felt
10 M5+ earthquakes recorded*
since Dec. 28, 2019 (including M6.4) large enough to do damage
** Data as of 2020-01-16 19-
...
House marking in Puerto Rico
Houses were damaged during the M6.4 earthquake that struck Puerto Rico on January 7, 2020. Houses were tagged by local officials for whether they were safe or not.
Earthquake Aftershock Forecast and Scenarios
Earthquake Aftershock Forecast and Scenarios
Earthquake Aftershock Forecast and Scenarios
Earthquake Aftershock Forecast and Scenarios
Earthquakes are unsettling, destructive, and often tragic to the communities they affect. The USGS works diligently to help keep people safer by providing them and their emergency responders the science needed to respond to ongoing hazards.
Last updated April 27, 5pm Pacific time, 2020.
There will be no further updates. Please see the Aftershock Forecast.
Los terremotos, como los ocurridos en Puerto Rico, pueden ser preocupantes, destructivos y en muchas ocasiones trágicos para las comunidades afectadas.
Última actualización el 27 de abril, 5pm, hora del Pacífico, 2020.
No habrá más actualizaciones. Consulte el Pronóstico de réplica.
Aftershock Forecast and Scenarios
Damaging earthquakes, like the ones in Puerto Rico, can be unsettling, destructive, and often tragic to the communities they affect. This is why the USGS continues to work diligently toward improving public safety by providing emergency responders and others with the scientific resources they need to better respond to ongoing hazards.
Earthquake Update and Aftershock Forecast
On Jan. 7, a magnitude 6.4 earthquake struck the region at 4:24 am local time (08:24:26 UTC). Significant damage is possible. Over the past several weeks, hundreds of small earthquakes have occurred in the Puerto Rico region, beginning in earnest with a M 4.7 earthquake late on December 28 and a M 5.0 event a few hours.
The Association for the Sciences of Limnology and Oceanography Annual Meeting
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Locations
Caribbean-Florida Water Science Center - Puerto Rico Office
Phone: (787) 749-7400
Fax: (787) 749-7401