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

Released: 7/30/2015 2:00:00 PM
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.

USGS Awards $4 Million to Support Earthquake Early Warning System in California and Pacific Northwest

Released: 7/30/2015 12:00:00 PM
The U.S. Geological Survey has awarded approximately $4 million this week to four universities – California Institute of Technology, University of California, Berkeley, University of Washington and University of Oregon – to support transitioning the “ShakeAlert” earthquake early warning system toward a production stage.

New England Maps Adding Trails

Released: 7/30/2015 9:30:00 AM
Several of the new US Topo quadrangles for New Hampshire and Vermont now display parts of the Appalachian National Scenic Trail (A.T.) and other selected public trails.

Landslides Triggered by Nepal Earthquakes

Released: 7/28/2015 2:18:22 PM
A new report from the U.S. Geological Survey provides critical landslide-hazard expertise to Nepalese agencies and villages affected by the April 25, magnitude 7.8 earthquake that shook much of central Nepal.

New Magnolia State Maps Adding Trails

Released: 7/28/2015 9:30:00 AM
Several of the 772 new US Topo quadrangles for Mississippi now display parts of the Natchez Trace National Scenic Trail and other selected public trails. Further significant additions to the new quadrangles include map symbol redesign, enhanced railroad information and new road source data.

Mount McKinley Elevation Survey Results Coming Soon

Released: 7/23/2015 9:30:00 AM
A team of four climbers has recently returned from the highest point in North America with new survey data to determine a more precise summit height of Mount McKinley. It is anticipated the new elevation finding will be announced in late August.

Climate Change Reduces Coral Reefs' Ability to Protect Coasts

Released: 7/22/2015 1:00:00 PM
Coral reefs, under pressure from climate change and direct human activity, may have a reduced ability to protect tropical islands against wave attack, erosion and salinization of drinking water resources, which help to sustain life on those islands.

Detailed Flood Information Key to More Reliable Coastal Storm Impact Estimates

Released: 7/21/2015 3:30:55 PM
CORAM, N.Y. -- A new study that looked in part at how damage estimates evolve following a storm puts the total amount of building damage caused by Hurricane Sandy for all evaluated counties in New York at $23 billion.

As Climate Warms Hawaiian Forest Birds Lose More Ground to Mosquitoes

Released: 7/17/2015 1:00:00 PM
Hawai‘i, the name alone elicits images of rhythmic traditional dancing, breathtaking azure sea coasts and scenes of vibrant birds flitting through lush jungle canopy. Unfortunately, the future of many native Hawaiian birds looks grim as diseases carried by mosquitoes are due to expand into higher elevation safe zones.

40 Years of North Pacific Seabird Survey Data Now Online

Released: 7/16/2015 12:30:00 PM
The U.S. Geological Survey today released the North Pacific Pelagic Seabird Database — a massive online resource compiling the results of 40 years of surveys by biologists from the United States, Canada, Japan and Russia.

Power of Prediction: Avian Fatalities at Wind Facilities

Released: 7/8/2015 9:31:56 AM
The U.S. Geological Survey, in collaboration with the U.S. Fish and Wildlife Service, has released a study that will enable ecologists, managers, policy makers, and industry to predict the bird fatalities at a wind facility prior to it being constructed.

Northern Alaska Coastal Erosion Threatens Habitat and Infrastructure

Released: 7/1/2015 12:30:00 PM
In a new study published today, scientists from the U.S. Geological Survey found that the remote northern Alaska coast has some of the highest shoreline erosion rates in the world.

Greenhouse Gas Emissions Remain the Primary Threat to Polar Bears

Released: 6/30/2015 1:30:00 PM
Greenhouse gas emissions remain the primary threat to the preservation of polar bear populations worldwide. This conclusion holds true under both a reduced greenhouse gas emission scenario that stabilizes climate warming and another scenario where emissions and warming continue at the current pace, according to updated U.S. Geological Survey research models.

Water Used for Hydraulic Fracturing Varies Widely Across United States

Released: 6/30/2015 10:00:00 AM
The amount of water required to hydraulically fracture oil and gas wells varies widely across the country, according to the first national-scale analysis and map of hydraulic fracturing water usage detailed in a new USGS study accepted for publication in Water Resources Research, a journal of the American Geophysical Union.


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