USGS - science for a changing world

U.S. Geological Survey

Maps, Imagery, and Publications Hazards Newsroom Education Jobs Partnerships Library About USGS Podcasts/RSS

USGS: Your source for science you can use

As an unbiased, multi-disciplinary science organization that focuses on biology, geography, geology, geospatial information, and water, we are dedicated to the timely, relevant, and impartial study of the landscape, our natural resources, and the natural hazards that threaten us. Learn more about our goals and priorities for the coming decade in our Science Strategy.

Science Areas

Hazards

Show all hazards

Recent Earthquakes:
Recent world earthquakes Recent USA earthquakes
World | USA RSS: Latest earthquakes CAP: Latest earthquakes

More Hazards:

Real-time data Real-time hazards

Kasatochi Volcano Updates

Great Southern California ShakeOut

Kilauea—Latest Update

WaterWatch - Current Streamflow Conditions

USGS Emergency Management

USGS Store
Can't see Flash? Install Flash Player or use the HTML version.

News Releases Newsroom RSS feeds

Quick look:
New discoveries about how even small amounts of sediment can severely impact fragile ocean coral and suggestions about solutions are illustrated and described in a new book written by a team of U.S. Geological Survey (USGS) scientists and their colleagues. Coral reefs are in decline worldwide, and a leading cause is the runoff of sediment and pollutants from nearby land surfaces...Reversing Coral Reef Decline in Hawai`i -- A New Look at a Critical Problem
(Released: 11/20/2008 6:42:31 PM)

Quick look:
Dust collected from coal-tar sealcoated parking lots in Central and Eastern U.S. cities contains concentrations of  polycyclic aromatic hydrocarbons (PAHs) that are about 1,000 times greater than levels found in Western cities where coal-tar sealcoat is less commonly used, according to a U.S. Geological Survey (USGS) study published this week in the journal Environmental Science and Technology. ...Pavement sealcoat linked to urban lake contamination in the Central and Eastern United States
(Released: 11/20/2008 3:19:22 PM)

Quick look:
In a breakthrough applauded today by the international Group on Earth Observations, scientists and decision-makers will soon have unrestricted global access at no charge to the USGS Landsat archive, the world's most extensive collection of continuously-acquired land imagery. By the end of this year, the full collection will, for the first time, be freely available online to users around the globe under a policy initiated by U.S. Secretary of the Interior Dirk Kempthorne....Group on Earth Observations Heralds Free, Global Access to USGS Earth Imagery
(Released: 11/20/2008 10:00:00 AM)

Latest Publications RSS feed

Quick look:
Stevens, Andrew W.; Gelfenbaum, Guy; Elias, Edwin; Jones, Craig (2008), Open-File Report 2008-1340.

Capitol Lake was created in 1951 with the construction of a concrete dam and control gate that prevented salt-water intrusion into the newly formed lake and regulated flow of the Deschutes River into southern Puget Sound. Physical processes associated with the former ...Incorporation of Fine-Grained Sediment Erodibility Measurements into Sediment Transport Modeling, Capitol Lake, Washington
(Released: 2008-11-20)

Quick look:
Leake, Stanley A.; Pool, Donald R.; Leenhouts, James M. (2008), Scientific Investigations Report 2008-5207.

In the context of ground-water resources, 'capture' or 'streamflow depletion' refers to withdrawal-induced changes in inflow to or outflow from an aquifer. These concepts are helpful in understanding the effects of long-term development of ground-water resourc...Simulated Effects of Ground-Water Withdrawals and Artificial Recharge on Discharge to Streams, Springs, and Riparian Vegetation in the Sierra Vista Subwatershed of the Upper San Pedro Basin, Southeastern Arizona
(Released: 2008-11-20)

Quick look:
Dodge, Kent A.; Hornberger, Michelle I.; Dyke, Jessica L. (2008), Open-File Report 2008-1318.

Water, bed sediment, and biota were sampled in streams from Butte to below Milltown Reservoir as part of a long-term monitoring program in the upper Clark Fork basin; additional water-quality samples were collected in the Clark Fork basin from sites near Milltown Reservoir ...Water-Quality, Bed-Sediment, and Biological Data (October 2006 through September 2007) and Statistical Summaries of Long-Term Data for Streams in the Clark Fork Basin, Montana
(Released: 2008-11-20)

CoreCast  Podcast feed  iTunes feed

Secretary Kempthorne and Mark Myers Share Thoughts on ShakeOut Quick look:
Secretary of the Interior Dirk Kempthorne and USGS Director Mark Myers reflect on the successes of The Great Southern California ShakeOut—the largest earthquake preparedness drill in U.S. history.
Host: Brian Campbell
(Mon, 17 Nov 2008 18:14:48 UTC; Length: 11:31)


Transcript/Links | Download (10.62 MB) (right-click to save)

- More podcasts

Search USGS

Science Topics

Science In Your Backyard

Image Map - U.S. Map

See also:
Ecosystems | Coastal/Offshore | International

Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North CarolinaNorth Dakota Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont U.S. Virgin Islands Virginia Washington West Virginia Wisconsin Wyoming

Frequently Asked Questions RSS feed

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey | DOI Inspector General
URL: http://www.usgs.gov/default.asp
Page Contact Information: Ask USGS
Page Last Modified: Tuesday, July 08, 2008