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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.

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Filter Total Items: 145
Date published: January 23, 2018
Status: Active

Scenario-Based Assessments for Coastal Change Hazard Forecasts

The assessment methodology is based on a storm-impact scaling model that uses observations of beach morphology combined with sophisticated hydrodynamic models to predict how the coast will respond to the direct landfall of extreme storms. Research part of the National...

Date published: January 23, 2018
Status: Completed

Living With Wildfires

Students at Art Center College of Design prototyped wildfire awareness campaigns after SAFRR exposed them to wildfire research and safety issues.

Date published: January 23, 2018
Status: Completed

ARkStorm Scenario

A modeled scenario of U.S. West Coast winter storm events induced by the formation of Atmospheric Rivers (AR) and capable of causing massive and devastating flooding.

Date published: January 23, 2018
Status: Completed

Partnership with YVO

Worked with USGS Yellowstone Volcano Observatory (YVO) and outside academic partners to plan and stage a workshop bringing together volcano researchers, emergency managers, and social scientists to raise awareness about hazardous volcanoes in the southwest.

Date published: January 23, 2018
Status: Completed

Partnership with CalVO and Cal EMA

Worked with USGS California Volcano Observatory (CalVO) and California Office of Emergency Services (Cal OES) to plan and stage a workshop to raise awareness, increase buy-in, and gather information for a volcano hazards annex to the California's state...

Date published: January 19, 2018
Status: Active

Storm-Induced Coastal Processes

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 ...

Date published: January 19, 2018
Status: Completed

Partnership for Community Disaster Resilience

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.

Date published: January 18, 2018
Status: Active

National Assessment of Storm-Induced Coastal Change Hazards

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.

Date published: January 18, 2018
Status: Active

National Assessment of Coastal Vulnerability to Sea Level Rise

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. 

Date published: January 18, 2018
Status: Completed

Debris Flow and Wildfire Evacuation Messaging

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.

Date published: January 18, 2018
Status: Active

Long-Term Coastal Change

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...

Date published: January 18, 2018
Status: Active

HayWired Scenario

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.

Contacts: Kenneth Hudnut
Filter Total Items: 97
Date published: March 15, 2016

High-resolution geophysical data collected along the Delmarva Peninsula in 2015, U.S. Geological Survey Field Activity 2015-001-FA

The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy in the fall of 2012. The U.S. Geological Survey conducted cruises during the summers of 2014 and 2015 to map the inner continental shelf of the Delmarva Peninsula using geophysical and sampling techniques to define the geologic framework

Date published: March 15, 2016

California State Waters Map Series GIS Data and Metadata

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.

Date published: March 7, 2016

Drought Watch

Where in the Nation are droughts or very low flows occurring now? How can I see these sites on a map and get to the data?

Date published: March 7, 2016

Real-time Streamflow

Map and data of real-time streamflow compared to historical streamflow for the day of the year in the U.S.

Date published: March 7, 2016

ISIS – The Integrated System for Imagers and Spectrometers

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.

Date published: March 7, 2016

PILOT – The Planetary Image LOcator Tool

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.

Date published: March 7, 2016

POW – The Map Projection on the Web

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.

Date published: March 7, 2016

Astro Web Maps – Our Web Mapping Services (WMS) and Web Feature Services (WFS)

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

Date published: March 7, 2016

Map-a-Planet 2

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.

Date published: March 7, 2016

GDAL – The Geospatial Data Abstraction Library

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.

Date published: March 7, 2016

Real-time Earthquake Information

Get real-time earthquake notifications sent to you using a number of popular mediums: Feeds, Email, Twitter, etc…

Date published: March 7, 2016

Flood Watch

Maps of flood and high flow conditions within the U.S.

Filter Total Items: 260
Year Published: 2008

Trace element and Pb isotope composition of plagioclase from dome samples from the 2004-2005 eruption of Mount St. Helens, Washington: Chapter 35 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

We report the results of in-situ laser ablation ICP–MS analyses of anorthite content, trace-element (Li, Ti, Sr, Ba, La, Pr, Ce, Nd, Eu, Pb) concentrations, and Pb-isotope compositions in plagioclase from eight dome-dacite samples collected from the 2004-5 eruption of Mount St. Helens and, for comparison, from three dome samples from 1981-85...

Sherrod, David R.; Scott, William E.; Stauffer, Peter H.; Kent, Adam J.R.; Rowe, Michael C.; Thornber, Carl R.; Pallister, John S.
Trace element and Pb isotope composition of plagioclase from dome samples from the 2004-2005 eruption of Mount St. Helens, Washington: Chapter 35 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006; 2008; PP; 1750-35; A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750); Kent, Adam J.R.; Rowe, Michael C.; Thornber, Carl R.; Pallister, John S.

Year Published: 2008

Effects of lava-dome growth on the crater glacier of Mount St. Helens, Washington: Chapter 13 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

The process of lava-dome emplacement through a glacier was observed for the first time as the 2004-6 eruption of Mount St. Helens proceeded. The glacier that had grown in the crater since the cataclysmic 1980 eruption was split in two by the new lava dome. The two parts of the glacier were successively squeezed against the crater wall....

Sherrod, David R.; Scott, William E.; Stauffer, Peter H.; Walder, Joseph S.; Schilling, Steve P.; Vallance, James W.; LaHusen, Richard G.
Effects of lava-dome growth on the crater glacier of Mount St. Helens, Washington: Chapter 13 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006; 2008; PP; 1750-13; A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750); Walder, Joseph S.; Schilling, Steve P.; Vallance, James W.; LaHusen, Richard G.

Year Published: 2008

Extrusion rate of the Mount St. Helens lava dome estimated from terrestrial imagery, November 2004-December 2005: Chapter 12 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

Oblique, terrestrial imagery from a single, fixed-position camera was used to estimate linear extrusion rates during sustained exogenous growth of the Mount St. Helens lava dome from November 2004 through December 2005. During that 14-month period, extrusion rates declined logarithmically from about 8-10 m/d to about 2 m/d. The overall ebbing...

Sherrod, David R.; Scott, William E.; Stauffer, Peter H.; Major, Jon J.; Kingsbury, Cole G.; Poland, Michael P.; LaHusen, Richard G.
Extrusion rate of the Mount St. Helens lava dome estimated from terrestrial imagery, November 2004-December 2005: Chapter 12 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006; 2008; PP; 1750-12; A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750); Major, Jon J.; Kingsbury, Cole G.; Poland, Michael P.; LaHusen, Richard G.

Year Published: 2008

Evolving magma storage conditions beneath Mount St. Helens inferred from chemical variations in melt inclusions from the 1980-1986 and current (2004-2006) eruptions: Chapter 33 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

Major element, trace element, and volatile concentrations in 187 glassy melt inclusions and 25 groundmass glasses from the 1980-86 eruption of Mount St. Helens are presented, together with 103 analyses of touching FE-Ti oxide pairs from the same samples. These data are used to evaluate the temporal evolution of the magmatic plumbing system...

Sherrod, David R.; Scott, William E.; Stauffer, Peter H.; Blundy, Jon; Cashman, Katharine V.; Berlo, Kim
Evolving magma storage conditions beneath Mount St. Helens inferred from chemical variations in melt inclusions from the 1980-1986 and current (2004-2006) eruptions: Chapter 33 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006; 2008; PP; 1750-33; A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750); Blundy, Jon; Cashman, Katharine V.; Berlo, Kim

Year Published: 2008

Frictional properties of the Mount St. Helens gouge: Chapter 20 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

Frictional properties of gouge bounding the solid dacite plug that extruded at Mount St. Helens during 2004 and 2005 may have caused stick-slip upward motion of the plug and associated seismicity. Laboratory experiments were performed with a ring-shear device to test the dependence of the peak and steady-state frictional strength of the gouge...

Sherrod, David R.; Scott, William E.; Stauffer, Peter H.; Moore, Peter L.; Iverson, Neal R.; Iverson, Richard M.
Frictional properties of the Mount St. Helens gouge: Chapter 20 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006; 2008; PP; 1750-20; A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750); Moore, Peter L.; Iverson, Neal R.; Iverson, Richard M.

Year Published: 2008

Chemistry, mineralogy, and petrology of amphibole in Mount St. Helens 2004-2006 dacite: Chapter 32 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

Textural, compositional, and mineralogical data are reported and interpreted for a large population of clinoamphibole phenocrysts in 22 samples from the seven successive dacite spines erupted at Mount St. Helens between October 2004 and January 2006. Despite the uniformity in bulk composition of magma erupted since 2004, there is striking...

Sherrod, David R.; Scott, William E.; Stauffer, Peter H.; Thornber, Carl R.; Pallister, John S.; Lowers, Heather; Rowe, Michael C.; Mandeville, Charles W.; Meeker, Gregory P.
Chemistry, mineralogy, and petrology of amphibole in Mount St. Helens 2004-2006 dacite: Chapter 32 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006; 2008; PP; 1750-32; A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750); Thornber, Carl R.; Pallister, John S.; Lowers, Heather A.; Rowe, Michael C.; Mandeville, Charles W.; Meeker, Gregory P.

Year Published: 2008

Remote camera observations of lava dome growth at Mount St. Helens, Washington, October 2004 to February 2006: Chapter 11 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

Images from a Web-based camera (Webcam) located 8 km north of Mount St. Helens and a network of remote, telemetered digital cameras were used to observe eruptive activity at the volcano between October 2004 and February 2006. The cameras offered the advantages of low cost, low power, flexibility in deployment, and high spatial and temporal...

Sherrod, David R.; Scott, William E.; Stauffer, Peter H.; Poland, Michael P.; Dzurisin, Daniel; LaHusen, Richard G.; Major, John J.; Lapcewich, Dennis; Endo, Elliot T.; Gooding, Daniel J.; Schilling, Steve P.; Janda, Christine G.
Remote camera observations of lava dome growth at Mount St. Helens, Washington, October 2004 to February 2006: Chapter 11 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006; 2008; PP; 1750-11; A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750); Poland, Michael P.; Dzurisin, Daniel; LaHusen, Richard G.; Major, John J.; Lapcewich, Dennis; Endo, Elliot T.; Gooding, Daniel J.; Schilling, Steve P.; Janda, Christine G.

Year Published: 2008

Radar interferometry observations of surface displacements during pre- and coeruptive periods at Mount St. Helens, Washington, 1992-2005: Chapter 18 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

We analyzed hundreds of interferograms of Mount St. Helens produced from radar images acquired by the ERS-1/2, ENVISAT, and RADARSAT satellites during the 1992-2004 preeruptive and 2004-2005 coeruptive periods for signs of deformation associated with magmatic activity at depth. Individual interferograms were often contaminated by atmospheric...

Sherrod, David R.; Scott, William E.; Stauffer, Peter H.; Poland, Michael; Lu, Zhong
Radar interferometry observations of surface displacements during pre- and coeruptive periods at Mount St. Helens, Washington, 1992-2005: Chapter 18 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006; 2008; PP; 1750-18; A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750); Poland, Michael; Lu, Zhong

Year Published: 2008

Use of thermal infrared imaging for monitoring renewed dome growth at Mount St. Helens, 2004: Chapter 17 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

A helicopter-mounted thermal imaging radiometer documented the explosive vent-clearing and effusive phases of the eruption of Mount St. Helens in 2004. A gyrostabilized gimbal controlled by a crew member housed the radiometer and an optical video camera attached to the nose of the helicopter. Since October 1, 2004, the system has provided...

Sherrod, David R.; Scott, William E.; Stauffer, Peter H.; Schneider, David J.; Vallance, James W.; Wessels, Rick L.; Logan, Matthew; Ramsey, Michael S.
Use of thermal infrared imaging for monitoring renewed dome growth at Mount St. Helens, 2004: Chapter 17 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006; 2008; PP; 1750-17; A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750); Schneider, David J.; Vallance, James W.; Wessels, Rick L.; Logan, Matthew; Ramsey, Michael S.

Year Published: 2008

Magmatic conditions and processes in the storage zone of the 2004-2006 Mount St. Helens dacite: Chapter 31 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

The 2004-6 eruption of Mount St. Helens produced dacite that contains 40-50 volume percent phenocrysts of plagioclase, amphibole, low-Ca pyroxene, magnetite, and ilmenite in a groundmass that is nearly totally crystallized. Phenocrysts of amphibole and pyroxene range from 3 to 5 mm long and are cyclically zoned, with one to three alternations...

Sherrod, David R.; Scott, William E.; Stauffer, Peter H.; Rutherford, Malcom J.; Devine, Joseph D.
Magmatic conditions and processes in the storage zone of the 2004-2006 Mount St. Helens dacite: Chapter 31 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006; 2008; PP; 1750-31; A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750); Rutherford, Malcom J.; Devine, III, Joseph D.

Year Published: 2008

Use of digital aerophotogrammetry to determine rates of lava dome growth, Mount St. Helens, Washington, 2004-2005: Chapter 8 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

Beginning in October 2004, a new lava dome grew on the glacier-covered crater floor of Mount St. Helens, Washington, immediately south of the 1980s lava dome. Seventeen digital elevation models (DEMs) constructed from vertical aerial photographs have provided quantitative estimates of extruded lava volumes and total volume change. To extract...

Sherrod, David R.; Scott, William E.; Stauffer, Peter H.; Schilling, Steve P.; Thompson, Ren A.; Messerich, James A.; Iwatsubo, Eugene Y.
Use of digital aerophotogrammetry to determine rates of lava dome growth, Mount St. Helens, Washington, 2004-2005: Chapter 8 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006; 2008; PP; 1750-8; A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750); Schilling, Steve P.; Thompson, Ren A.; Messerich, James A.; Iwatsubo, Eugene Y.

Year Published: 2008

Petrology of the 2004-2006 Mount St. Helens lava dome -- implications for magmatic plumbing and eruption triggering: Chapter 30 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

Eighteen years after dome-forming eruptions ended in 1986, and with little warning, Mount St. Helens began to erupt again in October 2004. During the ensuing two years, the volcano extruded more than 80×106 m3 of gas-poor, crystal-rich dacite lava. The 2004-6 dacite is remarkably uniform in bulk-rock composition and, at 65 percent SiO2 ,...

Sherrod, David R.; Scott, William E.; Stauffer, Peter H.; Pallister, John S.; Thornber, Carl R.; Cashman, Katharine V.; Clynne, Michael A.; Lowers, Heather; Mandeville, Charles W.; Brownfield, Isabelle K.; Meeker, Gregory P.
Petrology of the 2004-2006 Mount St. Helens lava dome -- implications for magmatic plumbing and eruption triggering: Chapter 30 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006; 2008; PP; 1750-30; A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750); Pallister, John S.; Thornber, Carl R.; Cashman, Katharine V.; Clynne, Michael A; Lowers, Heather A.; Mandeville, Charles W.; Brownfield, Isabelle K.; Meeker, Gregory P.

Filter Total Items: 2,095
Cracked road
June 11, 2018

Kīlauea Volcano — Cracked Road at Summit

This 'warped-curb' crack, the largest in the parking area for the former Halema‘uma‘u overlook (closed since 2008), is one of many that have sliced the parking area into slices. Ballistics (blocks of solid rock) strewn across the area are visible in the foreground. Loose, dislodged blocks along this crack...

Aerial of Kapoho Bay
June 10, 2018

Kīlauea Volcano — Lava Delta at Kapoho Bay

A closer aerial view of the lava delta forming at the Kapoho Bay ocean entry, where fissure 8 lava continued enter the ocean as of this morning. Laze (lava haze), an acidic white plume laced with tiny particles of volcanic glass, is produced by the ocean entry and creates an ongoing hazard that should be avoided.

Aerial of ocean entry plume
June 10, 2018

Kīlauea Volcano — Kapoho Bay Ocean Entry Plume

The fissure 8 lava flow reaches the ocean at Kapoho Bay, where a lava delta has formed and continues to grow as lava enters the sea. The largest white laze ...

Aerial of lava overflows
June 10, 2018

Kīlauea Volcano — Overflows from Fissure 8

Overflows of the upper fissure 8 lava channel this morning sent small flows of lava down the levee walls. These overflows did not extend far from the channel, so they posed no immediate threat to nearby areas. Channel overflows, like the ones shown here, add layers of lava to the channel levees, increasing their height and thickness.

Topographic photo of summit
June 10, 2018

Kīlauea Volcano — Topography of Halema`uma`u

A photogrammetry survey of Kīlauea's summit by the U.S. Department of Interior Unmanned Aircraft Systems' (UAS) Kīlauea response team show the topography of Halema‘uma‘u as of June 8. Cracks through the former overlook parking lot (bottom of image) wrap around the east margin of Halema‘uma‘u; the once-popular overlook viewing area (closed since 2008 due to volcanic hazards associated with the...

June 10, 2018

Kīlauea Volcano — Summit Explosion (June 10, 2018)

Another explosion occurred at Halema‘uma‘u at 12:51 a.m. HST today, releasing energy equivalent to a magnitude-5.3 earthquake. Following the explosion, summit activity consisted mostly of...

Aerial of lava flow
June 10, 2018

Kīlauea Volcano — Fissure 8 from a Distance

Distant view of Kīlauea Volcano's fissure 8 lava channel from HVO's early morning overflight on June 10, looking to the southeast. Bryson's cinder quarry is the brown patch just to the north of the channel.

Aerial of lava channel
June 10, 2018

Kīlauea Volcano — Fissure 8 Lava Channel

A closer view of the fissure 8 lava channel with the cinderquarry more clearly visible in the foreground (bottom of photo). During this morning's overflight, HVO geologists observed no new breakouts of lava near this quarry.

Aerial view of fissure 8 eruption
June 10, 2018

Kīlauea Volcano — Fissure 8 Eruption

Fissure 8 continues to erupt vigorously, with ...

Scientist setting up an instrument
June 9, 2018

Kīlauea Volcano — GPS Measurements at Summit

USGS-HVO geophysicists installed additional continuous GPS stations around Halema‘uma‘u this morning. These stations will allow scientists to better monitor and measure the ongoing subsidence of Halema‘uma‘u and the adjacent ...

A lava channel formed from a fissure eruption
June 9, 2018

Kīlauea Volcano — Fissure 8 Lava Channel

Fissure 8 and lava channel in the lower East Rift Zone of Kīlauea Volcano during this afternoon's overflight, with no apparent slowing in the eruption rate. The lava channel remained incandescent all the way around Kapoho Crater before entering the ocean.

Aerial view of ocean entry
June 9, 2018

Kīlauea Volcano — Kapoho Ocean Entry

An aerial view of the Kapoho ocean entry, as of 6:30 a.m. HST today, shows the extent of the lava delta, now about 200 acres in size, that has formed over the past six days (lava first entered the ocean on the night of June 3). Across the front of the delta, plumes of laze—created by molten lava interacting with seawater—appeared diminished this morning, but was probably due to a change in...

Filter Total Items: 338
Date published: December 12, 2017

Geophyiscal survey of Lake Powell, UT-AZ

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...

Date published: December 11, 2017

USGS provides information about Alaska coastal change to Scientific American

USGS scientists at the Pacific Coastal and Marine Science Center spoke by phone with Scientific American writer Andrea Thompson on November 15.

Date published: December 11, 2017

First observation of gold particles in hot hydrothermal fluids

For the first time, scientists have found gold particles in boiling fluids from a hydrothermal vent.

Date published: December 9, 2017

Open House at the Pacific Coastal and Marine Science Center in Santa Cruz

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.

Date published: December 8, 2017

Physical processes dominate channel evolution in Olympic National Park rivers—A reply

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.

Date published: November 30, 2017

Magnitude 4.1 Earthquake near Dover, Delaware

The USGS has up-to-date details on the November 30, 2017 event.

Date published: November 30, 2017

Revisiting the Oso Landslide

"Gravity Never Sleeps":  The USGS collaborates with community partners for a series of briefings on Capitol Hill to discuss national landslide hazards.  

Date published: November 29, 2017

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.

Date published: November 28, 2017

Updated assessment of erosion rates on Alaska’s Arctic coast

The USGS updated its shoreline-change rates for Alaska’s north coast between the U.S.-Canadian Border and Icy Cape as part of the National Assessment of Coastal Change Hazards.

Date published: November 28, 2017

Mexico’s Yucatan Peninsula Reveals a Cryptic Methane-Fueled Ecosystem in Flooded Caves

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.

Date published: November 27, 2017

Polluted groundwater threatens coral reefs

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.

Date published: November 20, 2017

ABC News speaks to USGS researchers about Arctic coastal change

Documentary features USGS researchers