Unified Interior Regions

Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands)

Regions L2 Landing Page Tabs

Filter Total Items: 366
Date published: September 4, 2019
Status: Active

Real-Time Storm Response

Coastal change forecasts and pre- and post-storm photos documenting coastal change for landfalling storms. Currently responding to Hurricane Dorian.

Contacts: Kara Doran
Date published: August 31, 2019
Status: Active

Hurricane Dorian 2019

The South Atlantic Water Science Center prepares for Hurricane Dorian. 

Date published: August 6, 2019
Status: Completed

Treasure Coast and Central Florida Fish Slams- 2019

In March and June 2019, USGS researchers joined partners in Treasure Coast and Central Florida where they sampled freshwater bodies for non-native fishes. The bi-annual Fish Slam event helps monitor new introductions and document range expansion of known non-native fishes. 

Date published: July 31, 2019
Status: Active

Terrestrial Analog Sample Collections

The Astrogeology Terrestrial Analog Sample Collections include three individual sample collections: the Meteor Crater Sample Collection, the Flynn Creek Crater Sample Collection, and the Shoemaker Sample Collection (embed links to individual pages; add buttons to click to go to individual pages). 


Click Related Science tab above to navigate to the individual...

Date published: July 24, 2019
Status: Active

Submerged Aquatic Vegetation Preferences of Fishes in Lake Apopka, Florida

To achieve the adaptive restoration objective of maximizing fish habitat, researchers will sample fish communities in Florida's Lake Apopka to compare between natural submerged aquatic vegetation (SAV), restored SAV, and bare bottom habitat. To undertand SAV preference of juvenile largemouth bass, researchers will conduct controlled experiments. These experiments will help managers select...

Contacts: Stephen Walsh, Ph.D., Audrey Looby, Charles W. Martin, Ph.D., Laura K. Reynolds, Carrie Reinhardt Adams, Ph.D.
Date published: July 11, 2019
Status: Active

Informing Future Condition Scenario Planning for Habitat Specialists of the Imperiled Pine Rockland Ecosystem of South Florida

South Florida's pine rockland ecosystem represents less than 3% of its original extent. This project will evaluate habitat conditions for two pine rockland snake species to develop future habitat condition scenarios for Species Status Assessments.

Date published: June 28, 2019
Status: Active

Modeling Conservation Targets for the Peninsular Florida Landscape Conservation Cooperative

The USGS is working with the Peninsular Florida Landscape Conservation Cooperative to develop forecast models that integrate potential impacts from external drivers for selected conservation targets and priority resources.

Date published: June 28, 2019
Status: Active

Multispecies Operational Forecasting in the Florida Everglades

A USGS forecasting tool helps Everglades natural resource managers identify management actions that can benefit one or more species while quantifying the potential costs to others. 

Filter Total Items: 68
Date published: January 1, 2019

Projected flood extent polygons and flood depth points based on 10-, 50-, 100-, and 500-year wave-energy return periods, with and without coral reefs, for the Territory of the U.S. Virgin Islands (the islands of Saint Croix, Saint John, and Saint Thomas)

This part of the data release presents projected flooding extent polygon (flood masks) and flooding depth points (flood points) shapefiles based on wave-driven total water levels for the Territory of the U.S. Virgin Islands (the islands of Saint Croix, Saint John, and Saint Thomas). For each island there are 8 associated flood mask and flood depth shapefiles: one for each four n

Date published: October 23, 2018

Presence of Microbes and the Distribution of Climatic, Environmental, and Geochemical Variables

This web application allows users to make comparisons between national scale environmental datasets and Bacillus species and Bacillus anthracis detection results. The datasets include soil physical, chemical, and mineralogical data, current and historical climate data, landcover, and biological surveys.

Date published: October 22, 2018

Airborne electromagnetic and magnetic survey data in Big Cypress National Preserve and Everglades National Park, 2001

Airborne electromagnetic (AEM) and magnetic survey data, a total of 3065 line-kilometers, were collected during October 2001 in two survey blocks and four repeated lines from an earlier survey. The largest area, Block 1 totaling 2692.2 line-kilometers was flown over Big Cypress Preserve, smaller Block 2 along 277.1 line-kilometers was flown near the town of Homestead, and four lines

Date published: October 4, 2018

Groundwater Conditions of Georgia

The Groundwater Conditions of Georgia application has interactive maps and graphs, that calculate water level trends over time. The application is a continuation of a series of reports begun in 1978.  

► Go to the Groundwater Conditions of Georgia application

Date published: August 28, 2018

USGS Domestic Continuous (Unconventional) Oil & Gas Assessments, 2000-Present

Interactively explore assessment summary information for continuous (unconventional) assessments conducted at the USGS from 2000-2018. The assessment results data used to generate this visualization can be downloaded here in Excel Format.  These data represent all assessment results...

Date published: January 19, 2018

Oblique Aerial Photography Viewer

Obique photos offer a unique perspective of the coast. Features such as beach erosion or accretion, dune erosion and overwash can all be clearly characterized in this imagery. It also documents coastal infrastructure, as well as the damage that infrastructure may incur as the result of an impacting hurricane. 

Filter Total Items: 39
Image of Jordan Lake Watershed biosolids study map
October 19, 2016

Location of the precipitation gage and streamflow and surface water quality monitoring stations in Orange County, North Carolina

North Platte, Nebraska US Topo quadrangle: 2014
September 26, 2016

Network wells depicted on the Climate Response Network location map
Note: Color shading in the table below indicates multiple wells that plot as a single point on the state location map above.
Note: BLS = Water Level in Feet Below Land Surface, RVD = Water Level referenced to a vertical datum

Mobile River Basin Study
September 22, 2016

The Mobile River Basin in Alabama, Georgia, Mississippi, and Tennessee is one of the 59 study units that are part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program.

Hurricane Louisiana Coast
September 14, 2016

June 1 marks the beginning of hurricane season. Should storms arrive on the Louisiana coast, the people in coastal communities across the State, along with many Federal, State, and local agencies will need to know how the storms are affecting the coastal and low-lying areas.The USGS maintains an extensive network of coastal gages that provides critical time-sensitive water level.

Map of stream gages in the Charlotte-Mecklenburg, North Carolina area
August 1, 2016

There are 54 streamgage sites collecting 5-minute continuous gage height data in the Charlotte-Mecklenburg Network. Of these 54 sites, 44 compute streamflow data as well.

Most sites use line-of-site radios to transmit the data to the USGS within minutes after the data is recorded. These data are loaded in the USGS database and available online soon after.

Rainfall Distribution Map for Charlotte, NC, 2016 April 30th
April 30, 2016

This map is based on data from more than 70 raingages operated by the U.S. Geological Survey in cooperation with the City of Charlotte and Mecklenburg County as part of the Flood Information and Notification System (FINS).

Filter Total Items: 5,197
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Year Published: 2021

Public and private tapwater: Comparative analysis of contaminant exposure and potential risk, Cape Cod, Massachusetts, USA

BackgroundHumans are primary drivers of environmental contamination worldwide, including in drinking-water resources. In the United States (US), federal and state agencies regulate and monitor public-supply drinking water while private-supply monitoring is rare; the current lack of directly comparable information on contaminant-mixture exposures...

Bradley, Paul; LeBlanc, Denis R.; Romanok, Kristin; Smalling, Kelly; Focazio, Michael J.; Cardon, Mary C.; Clark, Jimmy; Conley, Justin M.; Evans, Nicola; Givens, Carrie E; Gray, James L.; Gray, L. Earl; Hartig, Phillip C.; Higgins, Christopher P.; Hladik, Michelle; Iwanowicz, Luke R.; Loftin, Keith; McCleskey, R. Blaine; McDonough, Carrie A.; Medlock-Kakaley, Elizabeth; Weis, Christopher P.; Wilson, Vickie S.

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Year Published: 2021

Quantifying thresholds of barrier geomorphic change in a cross-shore sediment-partitioning model

Barrier coasts, including barrier islands, beach-ridge plains, and associated landforms, can assume a broad spectrum of morphologies over multi-decadal scales that reflect conditions of sediment availability, accommodation, and relative sea-level rise. However, the quantitative thresholds of these controls on barrier-system behavior remain largely...

Ciarletta, Daniel James; Miselis, Jennifer L.; Shawler, Justin L.; Hein, Christopher J.

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Year Published: 2021

The evolving perceptual model of streamflow generation at the Panola Mountain Research Watershed

The Panola Mountain Research Watershed (PMRW) is a 41‐hectare forested catchment within the Piedmont Province of the Southeastern United States. Observations, experimentation, and numerical modelling have been conducted at Panola over the past 35 years. But to date, these studies have not been fully incorporated into a more comprehensive synthesis...

Aulenbach, Brent T.; Hooper, Richard P; van Meerveld, H. J.; Burns, Douglas A.; Freer, James E.; Shanley, James B.; Huntington, Thomas; McDonnell, Jeffery J.; Norman E. Peters

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Year Published: 2021

Gulf Coast vicariance shapes phylogeographic history of a North American freshwater mussel species complex

AimFreshwater mussels share habitat and are parasites of freshwater fishes during the larval life stage. Therefore, models of fish biogeography may also explain the historical biogeography of freshwater mussels. We tested this assumption using predictions of three biogeographic models constructed for northern Gulf of Mexico drainages on a...

Keogh, Sean M.; Johnson, Nathan; Williams, James D.; Randklev, Charles R.; Simons, Andrew

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Year Published: 2021

Population density and stream-habitat relations of the Yellowcheek Darter (Nothonotus moorei) among the headwaters of the Little Red River in Arkansas

Nothonotus moorei (Yellowcheek Darter [YCD]) is an endangered species endemic to the headwaters of the Little Red River in north-central Arkansas. Population decline, habitat loss and fragmentation, and threats from land use and seasonal drought necessitate monitoring of population density and distribution to determine ecological and habitat...

Driver, Lucas; Justus, Billy

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Year Published: 2021

Inclusion of pesticide transformation products is key to estimating pesticide exposures and effects in small U.S. streams

Improved analytical methods can quantify hundreds of pesticide transformation products (TPs), but understanding of TP occurrence and potential toxicity in aquatic ecosystems remains limited. We quantified 108 parent pesticides and 116 TPs in more than 3 700 samples from 442 small streams in mostly urban basins across five major regions of the...

Mahler, Barbara; Nowell, Lisa H.; Sandstrom, Mark W.; Bradley, Paul; Romanok, Kristin; Konrad, Christopher; Van Metre, Peter

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Year Published: 2021

Review of the invasive Asian clam Corbicula spp. (Bivalvia: Cyrenidae) distribution in North America, 1924–2019

The bivalve Corbicula is one of the most successful aquatic mollusk invaders in the world. Since being intro­duced to North America from its native range in Asia, it has dispersed widely over a large portion of the continent from southern Canada to Panama. The first evidence of its introduc­tion in the Western Hemisphere was discovered in 1924 in...

Benson, Amy J.; Williams, James D.
Benson, A.J., and Williams, J.D., 2021, Review of the invasive Asian clam Corbicula spp. (Bivalvia: Cyrenidae) distribution in North America, 1924–2019: U.S. Geological Survey Scientific Investigations Report 2021–5001, 66 p., https://doi.org/10.3133/sir20215001.

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Year Published: 2021

Gulf of Mexico blue hole harbors high levels of novel microbial lineages

Exploration of oxygen-depleted marine environments has consistently revealed novel microbial taxa and metabolic capabilities that expand our understanding of microbial evolution and ecology. Marine blue holes are shallow karst formations characterized by low oxygen and high organic matter content. They are logistically challenging to sample, and...

Patin, N.V.; Dietrich, Z.A.; Stancil, A.; Quinan, M.; Beckler, J.S.; Hall, E.R.; Culter, J; Smith, Christopher; Taillefert, Martial; Stewart, F.J.

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Year Published: 2021

National-scale reservoir thermal energy storage pre-assessment for the United States

The U.S. Geological Survey is performing a pre-assessment of the cooling potential for reservoir thermal energy storage (RTES) in five generalized geologic regions (Basin and Range, Coastal Plains, Illinois Basin, Michigan Basin, Pacific Northwest) across the United States. Reservoir models are developed for the metropolitan areas of eight cities...

Pepin, Jeff D.; Burns, Erick; Dickinson, Jesse E.; Duncan, Leslie L.; Kuniansky, Eve L.; Reeves, Howard W.

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Year Published: 2021

Feral swine as sources of fecal contamination in recreational waters

Recreational waters are primary attractions at many national and state parks where feral swine populations are established, and thus are possible hotspots for visitor exposure to feral swine contaminants. Microbial source tracking (MST) was used to determine spatial and temporal patterns of fecal contamination in Congaree National Park (CONG) in...

McKee, Anna M.; Bradley, Paul; Shelley, David; McCarthy, Shea; Molina, Marirosa

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Year Published: 2021

Documentation of methods and inventory of irrigation information collected for the 2015 U.S. Geological Survey estimated use of water in the United States

The U.S. Geological Survey (USGS) National Water-Use Science Project strives to report water-use estimates using the best available information for the period of the estimates. The information available on water used for irrigation activities varies from State to State and in some areas from county to county within a State, which results in many...

Painter, Jaime A.; Brandt, Justin T.; Caldwell, Rodney R.; Haynes, Jonathan V.; Read, Amy L.
Painter, J.A., Brandt, J.T., Caldwell, R.R., Haynes, J.V., and Read, A.L., 2021, Documentation of methods and inventory of irrigation information collected for the 2015 U.S. Geological Survey estimated use of water in the United States: U.S. Geological Survey Scientific Investigations Report 2020–5139, 39 p., https://doi.org/10.3133/sir20205139.

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Year Published: 2021

The role of habitat heterogeneity and canyon processes in structuring sediment macrofaunal communities associated with hard substrate habitats in Norfolk Canyon, USA

Topographic and hydrodynamic complexity in submarine canyons promotes steep gradients in food availability and geophysical parameters which affect ecological assemblages and beta diversity. While habitat heterogeneity in submarine canyons is known to support diverse and abundant megafaunal communities, due to difficulty in sampling little is known...

Bourque, Jill; Demopoulos, Amanda; Robertson, Craig M.; Mienis, Furu

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Scientist on research vessel prepares to launch hydrophone
March 5, 2020

Scientist launches instrument used to map seafloor off Puerto Rico

USGS marine technician Wayne Baldwin prepares to deploy the hydrophone array during a seismic research cruise off the southwest coast of Puerto Rico on board the R/V Sultana in March 2020.

Marine technician deploy a hydrophone off Puerto Rico
March 5, 2020

USGS marine technicians launch a hydrophone off Puerto Rico seafloor

USGS marine technicians Alex Nichols (L) and Eric Moore (R) deploy the hydrophone array on a seismic research cruise off the southwest coast of Puerto Rico aboard the R/V Sultana in March 2020.

USGS technicians launch "sparker" used in seafloor mapping
March 5, 2020

Three scientists launch a "sparker" used in seafloor mapping

USGS research geologist Jason Chaytor (L) and marine technicians Alex Nichols (center) and Eric Moore (R) deploy the “sparker” sound source on a seismic research cruise off the southwest coast of Puerto Rico aboard the R/V Sultana in March 2020.

click on image for full description
January 29, 2020

2020 Southwest Puerto Rico Earthquake Sequence (Jan 29, 2020)

The U.S. Geological Survey has released a report on the potential duration of aftershocks of the 2020 Southwest Puerto Rico earthquake sequence (series) to guide public policy decisions, other actions, and help people stay safe and care for themselves and each other.

Aftershocks are normal and some will be larger than others, but there

click on image for full description
January 29, 2020

Secuencia del Terremoto del 2020 en el Suroeste de Puerto Rico

El Servicio Geológico de los EE. UU. ha publicado un informe sobre la duración potencial de las réplicas de la secuencia (serie) del terremoto del Suroeste de Puerto Rico en el 2020 que puede ser usado como guía en las decisiones de política pública, otras acciones y ayudar a las personas a mantenerse seguras y cuidarse a sí mismas y a los demás.



Dianne López-Trujillo with Lynne Carrier, FEMA translator.
January 28, 2020

Dianne López-Trujillo with Lynne Carrier, FEMA translator

Dianne López-Trujillo with Lynne Carrier, FEMA translator.

The USGS Recognizes Dianne Lopez-Trujillo During Hispanic Heritage Month

What happens when a 6.4 magnitude earthquake strikes Puerto Rico and the public needs critical information? How does a mostly English-speaking science agency reach a mostly Spanish-speaking public?

The USGS relies on its

Congressional event following the 6.4 earthquake in Puerto Rico
January 19, 2020

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

Congressional event following the 6.4 earthquake in Puerto Rico
January 19, 2020

Congressional event following the 6.4 earthquake in Puerto Rico

Overview of the Congressional event following the 6.4 earthquake in Puerto Rico. Bottom of picture: congressmen. Center: Dianne Lopez, Lindsay Davis, Donyelle Davis

Part of the USGS Earthquake Response Team visiting areas affected by the 6.4 earthquake.
January 17, 2020

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

USGS team with Wanda Vazquez-Garced, governor of Puerto Rico
January 15, 2020

USGS Earthquake Response team with governor of Puerto Rico

USGS team with Wanda Vazquez-Garced, governor of Puerto Rico. From left to right: Lindsay Davis, Wanda Vazquez, Dianne Lopez-Trujillo, Jonathan Godt, Donyelle Davis, Alex Grant

A brick building with blue trimmed windows and a blue sky
January 3, 2020

USGS St. Petersburg Studebaker Building

This historic brick Studebaker Building, originally built in 1925, was chosen as the location for the USGS St. Petersburg Coastal and Marine Science Center in the late 1980's. Many of the building’s original features are kept in tact to this day, including the Studebaker logos along the top of the building, and the Studebaker Distributor sign on the back of the building

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An image of the USGS Coastal Change Hazards portal showing risks of erosion along Atlantic Coast caused by TS Isaias.
August 1, 2020

Wave-driven flooding behind dunes unlikely on SE Atlantic coast, USGS predicts

This news release was updated August 3 based on the latest coastal change forecast.

To learn more about USGS’s role providing science to decision makers before, during and after Tropical Storm Isaias, visit https://www.usgs.gov/isaias.


Invasive Burmese Python
July 10, 2020

Washington – Today, the U.S. Geological Survey (USGS), U.S. National Park Service (NPS), U.S. Fish and Wildlife Service (FWS) and Conservancy of Southwest Florida announced they have teamed up to radio-track Burmese pythons in Big Cypress National Preserve, Crocodile Lake National Wildlife Refuge and other areas of Southwest Florida.

An animated satellite image showing Tropical Storm Bertha forming off the coast of South Carolina.
May 27, 2020

The 2020 Atlantic hurricane season starts June 1, and the U.S. Geological Survey is prepared to provide science that can help guide efforts to protect lives and property if a major storm makes landfall this season.

Map of seismic research site on seafloor off Puerto Rico
May 26, 2020

Most residents of southern Puerto Rico were startled by the sequence of earthquakes that began Dec. 28, 2019 and included a magnitude 6.4 quake on Jan. 7, 2020. Aftershocks are expected to continue for years, including some relatively strong ones, like a May 2 magnitude 5.4 temblor

A USGS field team measures spring floodwaters at Chesapeake bay's largest tributary.
May 12, 2020

U.S. Geological Survey field crews are measuring flooding across the country as spring weather is in full swing. Warming temperatures, increased precipitation and snowmelt have caused moderate to major flooding in the upper Midwest, East Coast, Central Plains and the Southeast portions of the country.

A map of the magnitude 5.4 Earthquake Felt in Puerto Rico showing it hit about six miles offshore on the south side of island
May 2, 2020

On May 2, 2020, a  magnitude 5.4 earthquake struck about 4 miles offshore of Tallaboa, Puerto Rico, at a depth of about 5-6 miles (9 kilometers). This story will be updated if/when more information becomes available.

Hydrologic tehcnician collects a sample of untreated groundwater from a public-supply well
April 7, 2020

Groundwater in the Atlantic and Gulf Coastal Plain aquifers is old—more than 21,300 years old in more than half of 252 public-supply wells sampled. That ancient groundwater is more likely to contain concentrations of fluoride, arsenic, and polonium-210 that exceed human-health benchmarks than is younger groundwater, reports a new study from the USGS National Water Quality Program.

Woman stands besides scientific equipment on the deck of a ship.
March 30, 2020

By understanding modern changes in temperature, and therefore past changes in the climate of the Gulf of Mexico, scientists can better predict climate changes in Earth’s future– just by studying teeny tiny forams.

Aeirial view of landslides blocking roads  in Utuado, Puerto Rico
March 19, 2020

A new U.S. Geological Survey map of Puerto Rico shows the relative risks of landslides due to the kind of intense rainfall brought on by hurricanes. It identifies 20%  of the island as at high risk, 9% at very high risk, and 1% at extremely high risk of landslides under those conditions. 

Follow Region 2 activities on social media, get contact information for Region 2 USGS centers, and meet Region 2's staff and center directors. 

Filter Total Items: 283