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Costs and consequences of natural hazards can be enormous; each year more people and infrastructure are at risk. We develop and apply hazards science to help protect U.S. safety, security, and economic well being. These scientific observations, analyses, and research are crucial for the Nation to become more resilient to natural hazards.Read Our Science Strategy
Process studies examine the physical processes at work prior to, during, and following coastal storm events. Understanding the processes involved in coastal landform evolution will improve the accuracy of the assessments of storm-induced coastal change hazards. Research is part of the ...
SAFRR is now a partner in the Los Angeles County Community Disaster Resilience project, a 3-year pilot collaboration to promote community resilience in the face of a wide range of public health emergencies.
The overall objective is to improve real-time and scenario-based predictions of coastal change to support management of coastal infrastructure, resources, and safety. Research is part of the National Assessment of Coastal Change Hazards project.
This research seeks to objectively determine the relative risks due to future sea-level rise for the U.S. Atlantic, Pacific, and Gulf of Mexico coasts. Research is part of National Assessment of Coastal Change Hazards project.
What persuades someone to heed a debris flow or wildfire evacuation warning? SAFRR partners in emergency management are especially interested in the results of this study, now underway with Columbia's Center for Research on Environmental Decisions.
Goals of this project include developing and improving coastal-change assessments and supporting long-term planning and decision making to ensure sustainable coastal economies, infrastructure, and ecosystems. Research is part of the National Assessment of Coastal Change Hazards...
The HayWired scenario depicts a scientifically realistic earthquake sequence, and its cascading impacts, that all starts with a magnitude 7 earthquake on the Hayward Fault. The scenario emphasizes understanding impacts from modern society's lifeline interdependencies and reliance on the Internet.
Research to identify areas that are most vulnerable to coastal change hazards including beach and dune erosion, long-term shoreline change, and sea-level rise.
A modeled probable earthquake scenario based on the most comprehensive scientific research analysis done to understand the impacts and implications of a hypothetical but realistic 7.8 earthquake on the San Andreas Fault. Pairing robust science with state-of-the-art modeling and visualization tools makes ShakeOut an accessible and effective message, in scenario form, to enhance community...
Students at Art Center College of Design learned about tsunamis from SAFRR partners in natural science, social science, and emergency management, then designed a fun, engaging, multi-faceted awareness campaign. Prototype Tsunami Awareness Campaign
Integrating Mapping and Modeling to Support the Restoration of Bird Nesting Habitat at Breton Island National Wildlife Refuge
In response to storms, reduced sediment supply, and sea-level rise, Breton Island is rapidly deteriorating, impacting the available nesting habitat of endangered seabirds. This study provides critical information regarding the physical environment of the island system. Research is part of the ...
The geologic evolution of Cat Island has been influenced by deltaic, lagoonal/estuarine, tidal, and oceanographic processes, resulting in a complex stratigraphic record.
GIS data files for map areas offshore of California are listed with a brief description, a small image, and links to the metadata files and the downloadable data files.
ISIS has many standard image processing operations such as contrast stretch, image algebra, filters, and statistical analysis. Isis operates on both classical two-dimensional images as well as three-dimensional cubes collected from imaging spectrometers. It also has unique capabilities for processing data from NASA spacecraft missions.
PILOT is a web based search tool for the Unified Planetary Coordinate (UPC) database of the Planetary Data System. PILOT features SPICE-corrected image locations and searching capabilities using a navigable map, user selectable image constraints, and facilitates bulk downloads and/or image processing using POW.
The Map Projection on the Web service was created to help researchers convert raw Planetary Data System images to a science-ready map projected images. The system integrates the Planetary Image LOcator Tool (PILOT) and the Unified Planetary Coordinate (UPC), ISIS3, GDAL, and the Astrogeology processing cluster for its’ processing needs.
Astro Web Maps – Our Web Mapping Services (WMS) and Web Feature Services (WFS) are based on Open Geospatial Consortium standards and allow capable mapping clients to view full-resolution planetary mosaicked Basemaps. Services are available for community use and are critical for our Planetary Nomenclature, Planetary Geologic Mapping and PILOT sites
Allows existing map-projected (derived) image products to be re-projected, stretched, clipped, and converted into a variety of useful formats. Version 2 allows us to quickly add new mosaics and potentially many other derived science products for conversion and download.
GDAL is a translator library for raster geospatial data formats that is released under an X/MIT style Open Source license by the Open Source Geospatial Foundation. As a library, it presents a single abstract data model for all supported formats. It also comes with a variety of useful commandline utilities for data translation and processing.
Origin of Meter-Size Granite Basins in the Southern Sierra Nevada, California
Meter-size granite basins are found in a 180-km belt extending south from the South Fork of the Kings River to Lake Isabella on the west slope of the southern Sierra Nevada, California. Their origin has long been debated. A total of 1,033 basins have been inventoried at 221 sites. The basins occur on bedrock granitic outcrops at a median elevation...Moore, James G.; Gorden, Mary A.; Robinson, Joel E.; Moring, Barry C.
Geologic Map of Mount Mazama and Crater Lake Caldera, Oregon
Crater Lake partly fills one of the most spectacular calderas of the world, an 8-by-10-km basin more than 1 km deep formed by collapse of the volcano known as Mount Mazama (fig. 1) during a rapid series of explosive eruptions about 7,700 years ago. Having a maximum depth of 594 m, Crater Lake is the deepest lake in the United States. Crater Lake...Bacon, Charles R.
Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon
Since 1979, Earth scientists of the Geothermal Research Program of the U.S. Geological Survey have carried out multidisciplinary research in the Cascade Range. The goal of this research is to understand the geology, tectonics, and hydrology of the Cascades in order to characterize and quantify geothermal resource potential. A major goal of the...Nimz, Kathryn; Ramsey, David W.; Sherrod, David R.; Smith, James G.
Alaska Volcano Observatory
Steam plume from the 2006 eruption of Augustine volcano in Cook Inlet, Alaska. Explosive ash-producing eruptions from Alaska's 40+ historically active volcanoes pose hazards to aviation, including commercial aircraft flying the busy North Pacific routes between North America and Asia. The Alaska Volcano Observatory (AVO) monitors these volcanoes...Venezky, Dina Y.; Murray, Tom; Read, Cyrus
Cascades Volcano Observatory
Washington's Mount St. Helens volcano reawakens explosively on October 1, 2004, after 18 years of quiescence. Scientists at the U.S. Geological Survey's Cascades Volcano Observatory (CVO) study and observe Mount St. Helens and other volcanoes of the Cascade Range in Washington, Oregon, and northern California that hold potential for future...Venezky, Dina Y.; Driedger, Carolyn; Pallister, John
Hawaiian Volcano Observatory
Lava from Kilauea volcano flowing through a forest in the Royal Gardens subdivision, Hawai'i, in February 2008. The Hawaiian Volcano Observatory (HVO) monitors the volcanoes of Hawai'i and is located within Hawaiian Volcanoes National Park. HVO is one of five USGS Volcano Hazards Program observatories that monitor U.S. volcanoes for science and...Venezky, Dina Y.; Orr, Tim R.
Long Valley Observatory
The ~300-year-old lava on Paoha Island in Mono Lake was produced by the most recent eruption in the Long Valley Caldera area in east-central California. The Long Valley Caldera was formed by a massive volcanic eruption 760,000 years ago. The region is monitored by the Long Valley Observatory (LVO), one of five USGS Volcano Hazards Program...Venezky, Dina Y.; Hill, David
Volcano Hazards Program
Diagram of common volcano hazards. The U.S. Geological Survey Volcano Hazards Program (VHP) monitors unrest and eruptions at U.S. volcanoes, assesses potential hazards, responds to volcanic crises, and conducts research on how volcanoes work. When conditions change at a monitored volcano, the VHP issues public advisories and warnings to alert...Venezky, Dina Y.; Myers, Bobbie; Driedger, Carolyn
Yellowstone Volcano Observatory
Eruption of Yellowstone's Old Faithful Geyser. Yellowstone hosts the world's largest and most diverse collection of natural thermal features, which are the surface expression of magmatic heat at shallow depths in the crust. The Yellowstone system is monitored by the Yellowstone Volcano Observatory (YVO), a partnership among the U.S. Geological...Venezky, Dina Y.; Lowenstern, Jacob
Remote-controlled pan, tilt, zoom cameras at Kilauea and Mauna Loa Volcanoes, Hawai'i
Lists of important volcano-monitoring disciplines usually include seismology, geodesy, and gas geochemistry. Visual monitoring - the essence of volcanology - is usually not mentioned. Yet, observations of the outward appearance of a volcano provide data that is equally as important as that provided by the other disciplines. The eye was almost...Hoblitt, Richard P.; Orr, Tim R.; Castella, Frederic; Cervelli, Peter F.
Digital Data for Volcano Hazards at Newberry Volcano, Oregon
Newberry volcano is a broad shield volcano located in central Oregon, the product of thousands of eruptions, beginning about 600,000 years ago. At least 25 vents on the flanks and summit have been active during the past 10,000 years. The most recent eruption 1,300 years ago produced the Big Obsidian Flow. Thus, the volcano's long history and...Schilling, S.P.; Doelger, S.; Sherrod, D.R.; Mastin, L.G.; Scott, W.E.
Digital Data for Volcano Hazards from Mount Rainier, Washington, Revised 1998
Mount Rainier at 4393 meters (14,410 feet) is the highest peak in the Cascade Range; a dormant volcano having glacier ice that exceeds that of any other mountain in the conterminous United States. This tremendous mass of rock and ice, in combination with great topographic relief, poses a variety of geologic hazards, both during inevitable future...Schilling, S.P.; Doelger, S.; Hoblitt, R.P.; Walder, J.S.; Driedger, C.L.; Scott, K.M.; Pringle, P.T.; Vallance, J.W.
USGS Hawaiian Volcano Observatory, Status of Kīlauea Volcano, June 7, 2018. Jessica Ball, USGS Volcanologist.
With careful consideration and planning to avoid ongoing volcanic hazards as much as possible, an HVO scientist who has been studying the behavior of Kīlauea's summit for decades, briefly visited the parking area for the former Halema‘uma‘u overlook (closed since 2008) on June 5 to make direct observations of and gather data from the effects of recent explosions within Halema‘uma‘u. Through...
The Halema‘uma‘u parking lot is sliced into blocks by cracks. These cracks, first noted in a very early stage on May 13, now are the dominant features of the parking lot. The cracks, which are circumferential to Halema‘uma‘u, warp and offset the pavement and curbing, as seen here. The crack responsible for warping this curbstone is visible on both sides of it.
Many large blocks appeared to be in depressions in the ash, but upon closer examination, it was concluded that wind had winnowed ash from around the blocks, creating a false impression that the depressions were made by impact. In places, ash has accumulated on the upwind sides and been removed from the downwind sides of the ballistics, giving a smooth streamlined appearance to the parking lot...
This animated GIF shows a sequence of radar amplitude images that were acquired by the Italian Space Agency's Cosmo-SkyMed satellite system. The images illustrate changes to the ...
Clear conditions at Pu‘u ‘Ō‘ō provided good views into the crater. The crater floor collapsed, and the lava lake drained, a little more than a month ago. The crater now has a funnel-shape geometry with a deeper...
This is a video compilation from a helicopter overflight of Kīlauea Volcano's lower East Rift Zone on June 6, 2018, around 6:30 AM. The video shows the ...
This is a video compilation from a helicopter overflight of Kīlauea Volcano's lower East Rift Zone on June 6, 2018, around 6:30 AM. The video shows the fissure 8 lava fountain feeding a channelized lava flow that travels northeast around the Kapoho cone, and then flows toward the south to enter the ocean at Kapoho Bay and Vacationland. The ocean entry has completely filled Kapoho Bay with lava...
USGS Hawaiian Volcano Observatory, Status of Kīlauea Volcano, 9:30am HST, June 6, 2018, Jessica Ball, USGS Volcanologist
The International Charter for Space and Major Disasters (https://disasterscharter.org/) is a means for space agencies around the world to help with disaster monitoring by providing satellite data to responders and scientists on the ground. The charter was invoked for recent eruptive activity at Kīlauea, and numerous space agencies are providing...
Develop a new bathymetry map of Lake Powell, UT-AZ, and characterize shallow sediment deposition near the mouths of the San Juan and Colorado Rivers. Bathymetric data, acoustic backscatter imagery, and limited CHIRP sub-bottom data were collected by the USGS Utah Water Science Center (UTWSC) and Woods Hole Coastal and Marine Science Center (WHCMSC) within Lake Powell, October - November, 2017...
USGS scientists at the Pacific Coastal and Marine Science Center spoke by phone with Scientific American writer Andrea Thompson on November 15.
For the first time, scientists have found gold particles in boiling fluids from a hydrothermal vent.
From 11 a.m. to 4 p.m. on Saturday, December 9, USGS scientists treated visitors to displays about their research at the Pacific Coastal and Marine Science Center in Santa Cruz, California.
A team of federal scientists addressed comments from researchers who disagree with their conclusions that river channel evolution is driven primarily by physical factors rather than an overabundance of elk after wolf eradication.
USGS geologist chairs discussion of issues facing Department of Defense installations in the Pacific and Arctic
At the request of the U.S. Department of Defense (DoD) Strategic Environmental Research and Development Program (SERDP), USGS geologist Curt Storlazzi chaired a session at a conference on issues affecting DoD installations.
In the underground rivers and flooded caves of Mexico’s Yucatan Peninsula, where Mayan lore described a fantastical underworld, scientists have found a cryptic world in its own right.
Coral reefs already stressed by ocean acidification are particularly vulnerable to polluted groundwater, according to a recent study by USGS geologist Nancy Prouty and colleagues.
Documentary features USGS researchers