Donyelle Davis
Science and Products
USGS Awards More Than $12.5 Million to Advance the ShakeAlert Earthquake Early Warning System in California, Oregon and Washington
The U.S. Geological Survey has awarded more than $12.5 million to seven universities and a university-governed non-profit to support operation, improvement and expansion of the ShakeAlert earthquake early warning system for the West Coast of the United States.
Kilauea volcanic activity and ash eruptions intensify
With ash eruptions occurring from Kilauea’s summit this week, there is a threat of an even larger steam-driven violent explosion. Such an eruption could happen suddenly and send volcanic ash 20,000 feet into the air, threatening communities for miles.
One of the first Black USGS geophysicists, pioneers subsurface research
Early in his college career, U.S. Geological Survey geophysicist Rufus Catchings became drawn to the mysteries that lie beneath the earth’s surface — and was determined to understand them.
USGS Geologists Join Efforts in Montecito to Assess Debris-Flow Aftermath
Days after fatal debris flows devastated Southern California’s Montecito community, a team of U.S. Geological Survey geologists joined county, state, and federal partners to survey and evaluate the aftermath.
Harvesting Earthquake Fault Slip from Laser Images of Napa's Vineyards
A new U.S. Geological Survey-led study suggests that earthquake-related deformation just below the Earth's surface can be quite different from how it is expressed at the surface.
Magnitude 5.8 Earthquake in Montana
The USGS has up-to-date details on the July 6, 2017 event.
Earthquake Early Warning: Vital for City Transit
Although no one can reliably predict earthquakes, today’s technology is advanced enough to rapidly detect seismic waves as an earthquake begins, calculate the maximum expected shaking, and send alerts to surrounding areas before damage can occur. This technology is known as “earthquake early warning” (EEW).
“ShakeAlert” Earthquake Early Warning System Goes West Coast Wide
The U.S. Geological Survey along with university, state and private-sector partners will highlight the rollout of Version 1.2 of the USGS ShakeAlert earthquake early warning system on April 10, 2017.
History of Abrupt Sinking of the Seal Beach Wetlands: New Study Reveals Past Quakes along Fault and Offers Glimpse into the Future
Seal Beach, Calif.— A new collaborative study shows evidence of prior abrupt sinking of the wetlands near Seal Beach, caused by ancient earthquakes that shook the area at least three times in the past 2,000 years, according to researchers.
Water managers explore new strategies to protect fish in California’s Bay Delta
The water in the Delta arrives primarily from the Sacramento and San Joaquin Rivers, supplying water for more than 22 million people. This water source supports California’s trillion-dollar economy—the sixth largest in the world—and its $27 billion agricultural industry.
Prehistoric earthquakes discovered along San Andreas Fault
Pasadena, Calif. – A new U.S. Geological Survey study offers a view into the past behavior of large earthquakes along the southern San Andreas Fault.
Reporters: Accompany a USGS field crew as they monitor stream flow and flooding
The U.S. Geological Survey’s California Water Science Center is hosting a media event Wednesday, Jan. 11 at a USGS streamgage location about 7 miles north of Santa Cruz, California. A hydrologist will be available for interviews as field crews collect streamflow data.