Natural Hazards


Filter Total Items: 600
Date published: October 14, 2015

Media Advisory and Photo Op: USGS Employees Get Ready to “Drop, Cover, and Hold On!” in the Great ShakeOut

MENLO PARK, Calif. — U.S. Geological Survey employees in Menlo Park, Calif. will participate in an earthquake safety drill, and test their emergency response plan as part of the Great ShakeOut on Oct. 15, an annual day of action to practice how to protect yourself from an earthquake.

Date published: October 5, 2015

EarthWord: Fumarole

Fumaroles are openings in the earth’s surface that emit steam and volcanic gases, such as sulfur dioxide and carbon dioxide. They can occur as holes, cracks, or fissures near active volcanoes or in areas where magma has risen into the earth’s crust without erupting. A fumarole can vent for centuries or quickly go extinct, depending on the longevity of its heat source.

Date published: October 2, 2015

Atlantic Beaches Still Likely to be Affected by Hurricane Joaquin

As the path of Hurricane Joaquin continues to move farther offshore, making landfall in the U.S. less likely, U.S. Geological Survey coastal change experts say there’s still a high probability of dune erosion along parts of the Atlantic coast, from the North Carolina Outer Banks to Cape Cod.

Date published: October 1, 2015

Media Advisory: USGS Deploys Crews in Advance of Hurricane Joaquin in Virginia

USGS field crews will be out deploying storm tide sensors along the Virginia coast near Virginia Beach, along the Western Chesapeake Bay, and on the Eastern Shore ahead of Hurricane Joaquin. Storm tide sensors measure the tidal fluctuations and height of the tide relative to land surface.

Date published: September 30, 2015

Aurora Borealis Painting Pays Tribute to Civil War’s End

USGS explores the meaning behind Frederic Edwin Church's 1865 painting, “Aurora Borealis.”

Date published: September 28, 2015

Storms after Wildfire Lead to Impaired Water Quality

Water quality can be substantially diminished for several years after wildfire in response to relatively common local thunderstorms, according to a recent USGS study.

Date published: September 28, 2015

Join America’s PrepareAthon! Practice what to do in the event of a disaster or emergency.

Join millions of people participating in America’s PrepareAthon! on Sept. 30. This campaign encourages the nation to conduct drills, discussions and exercises to practice what to do before, during and after a disaster or emergency strikes.

Date published: September 21, 2015

El Niño and La Niña will Exacerbate Coastal Hazards Across Entire Pacific

SANTA CRUZ, Calif. — The projected upsurge of severe El Niño and La Niña events will cause an increase in storm events leading to extreme coastal flooding and erosion in populated regions across the Pacific Ocean, according to a multi-agency study published today in Nature Geoscience.

Date published: September 17, 2015

USGS Volcano Alert Level for Mauna Loa Elevated from Normal to Advisory Status

Scientists at the U.S. Geological Survey Hawaiian Volcano Observatory have elevated the Volcano Alert Level for Mauna Loa from NORMAL to ADVISORY. This change in status indicates that the volcano is showing signs of unrest that are above known background levels, but it does not mean that a Mauna Loa eruption is imminent or certain.

Date published: September 10, 2015

Megathrust Quake Faults Weaker and Less Stressed than Thought

MENLO PARK, Calif. — Some of the inner workings of Earth’s subduction zones and their “megathrust” faults are revealed in a paper published today in the journal “Science.” U.S. Geological Survey scientist Jeanne Hardebeck calculated the frictional strength of subduction zone faults worldwide, and the stresses they are under.

Date published: August 24, 2015

Media Advisory: Yes, Humans Really Are Causing Earthquakes — Public Lecture

The earthquake rate has dramatically increased in the central United States in the last six years. Oklahoma had more magnitude 3 or greater earthquakes in 2014 than California.

Attribution: Natural Hazards
Date published: July 30, 2015

New Simulations of 1811-1812 New Madrid Earthquakes Show Strong and Prolonged Ground Shaking in Memphis and Little Rock

Computer simulations of earthquake shaking, replicating the quakes that occurred in 1811-1812 in the New Madrid seismic zone (NMSZ), indicate that future large earthquakes there would produce major, prolonged ground shaking.