Natural Hazards

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Date published: January 7, 2016

Getting Down to Earth with Space Hazards

Magnetic storms can interfere with the operation of electric power grids and damage grid infrastructure. They can also disrupt directional drilling for oil and gas, radio communications, communication satellites and GPS systems.

Date published: January 5, 2016

Reflecting on 2015 Natural Hazards

Reflecting on the natural hazards of 2015 serves as a reminder of the dangers we face and the need for preparedness to save lives and property.

Attribution: Natural Hazards
Date published: January 4, 2016

USGS Measures Historic Flooding Across the Nation

U.S. Geological Survey field crews are measuring record flooding on rivers and streams in 12 states across the country. USGS is making preparations for a prolonged field effort along the Ohio and Mississippi Rivers as major flooding will extend well into mid-to-late January, particularly along the lower Mississippi River.

Date published: December 21, 2015

Normal Weather Drives Salt Marsh Erosion

For salt marshes, hurricanes are just another day at the beach.

Attribution: Natural Hazards
Date published: December 4, 2015

Low-flying Airplane Mapping Geology and Mineral Resources Over the Eastern Adirondacks

Residents of Essex and Clinton counties in New York may notice an airplane flying a grid pattern at low altitude for a few weeks in December as scientists from the U.S. Geological Survey map buried geological features that provide clues into mineral resources in the area.

Date published: October 29, 2015

3D Images of Magma Below Mono Craters Area

A new conceptual model of the magma system below Mono Lake and Mono Craters in eastern California gives scientists a more detailed understanding of volcanic processes at depth, and a better model for forecasting volcanic unrest.

Date published: October 26, 2015

A Century of Induced Earthquakes in Oklahoma?

The rate of earthquakes has increased sharply since 2009 in the central and eastern United States, with growing evidence confirming that these earthquakes are primarily caused by human activity, namely the injection of wastewater in deep disposal wells.

Date published: October 22, 2015

Floods in South Carolina Set 17 USGS Streamgage Records

During the historic October 2015 floods in South Carolina, 17 U.S. Geological Survey streamgages recorded the highest peak streamflow and/or river height (or stage) since those streamgages were installed. An additional 15 USGS streamgages recorded peaks in the top 5 for their periods of record.

Date published: October 22, 2015

Joint Venture, U.S. Geological Survey Join Forces

Joint Venture Silicon Valley and the U.S. Geological Survey today jointly announced a partnership to address regional challenges from natural hazards, climate and land use change, and continued availability of clean air and water resources.

Date published: October 15, 2015

Critical Volcano Monitoring Systems Returned to Operation in Alaska

The Alaska Volcano Observatory has recently completed repairs to seismic monitoring equipment on Aniakchak Volcano on the Alaska Peninsula that have restored ground-based monitoring at the volcano.

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.