by Jennifer Harden, USGS Soil Scientist
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The USGS is a science organization that provides impartial information on the health of our ecosystems and environment, the natural hazards that threaten us, the natural resources we rely on, the impacts of climate and land-use change, and the core science systems that help us provide timely, relevant, and useable information.
by Jennifer Harden, USGS Soil Scientist
by Jennifer Harden, USGS Soil Scientist
A virtual tour of the 1868 Hayward Earthquake in Google Earth.
A virtual tour of the 1868 Hayward Earthquake in Google Earth.
This short video gives an overview of the USGS Menlo Park Science Center in California. It briefly introduces you to the San Francisco Bay Area, shows the campus and facilities, and includes interviews with scientists describing their work.
This short video gives an overview of the USGS Menlo Park Science Center in California. It briefly introduces you to the San Francisco Bay Area, shows the campus and facilities, and includes interviews with scientists describing their work.
This video gives a brief overview of the U.S. Program for the Indian Ocean Tsunami Warning System.
It includes footage of the deployment of the first Indian Ocean Tsunami Detection (DART) buoy in December 2006, of a simulation exercise in Padang, Indonesia, a training course in seismology that took place in 2007, as well as interviews with scientists.
This video gives a brief overview of the U.S. Program for the Indian Ocean Tsunami Warning System.
It includes footage of the deployment of the first Indian Ocean Tsunami Detection (DART) buoy in December 2006, of a simulation exercise in Padang, Indonesia, a training course in seismology that took place in 2007, as well as interviews with scientists.
Tsunami Preparedness explains how and why tsunamis occur, how to know that a tsunami is approaching, and what you should do. These issues are addressed by scientists, emergency managers, and first responders.
Tsunami Preparedness explains how and why tsunamis occur, how to know that a tsunami is approaching, and what you should do. These issues are addressed by scientists, emergency managers, and first responders.
Tsunamis are a constant threat to the coasts of our world. Although tsunamis are infrequent along the California coast, it is possible and necessary to prepare for potential tsunami hazards to minimize loss of life and property. Community awareness programs are important, as they strive to create an informed society by providing education and training.
Tsunamis are a constant threat to the coasts of our world. Although tsunamis are infrequent along the California coast, it is possible and necessary to prepare for potential tsunami hazards to minimize loss of life and property. Community awareness programs are important, as they strive to create an informed society by providing education and training.
Tsunamis are a constant threat to the coasts of our world. Although tsunamis are infrequent along the California coast, it is possible and necessary to prepare for potential tsunami hazards to minimize loss of life and property. Community awareness programs are important, as they strive to create an informed society by providing education and training.
Tsunamis are a constant threat to the coasts of our world. Although tsunamis are infrequent along the California coast, it is possible and necessary to prepare for potential tsunami hazards to minimize loss of life and property. Community awareness programs are important, as they strive to create an informed society by providing education and training.
Tsunamis are a constant threat to the coasts of our world. Although tsunamis are infrequent along the California coast, it is possible and necessary to prepare for potential tsunami hazards to minimize loss of life and property. Community awareness programs are important, as they strive to create an informed society by providing education and training.
Tsunamis are a constant threat to the coasts of our world. Although tsunamis are infrequent along the California coast, it is possible and necessary to prepare for potential tsunami hazards to minimize loss of life and property. Community awareness programs are important, as they strive to create an informed society by providing education and training.
This video describes research being conducted by Dr. Karen McKee, USGS Research Ecologist, and her university partner, Dr. Julia Cherry. Their goal is to better understand the effects of sea-level rise and other global change factors on coastal wetlands in the Mississippi River Delta. This region contains over 40% of the U.S.
This video describes research being conducted by Dr. Karen McKee, USGS Research Ecologist, and her university partner, Dr. Julia Cherry. Their goal is to better understand the effects of sea-level rise and other global change factors on coastal wetlands in the Mississippi River Delta. This region contains over 40% of the U.S.
movie shows recent activity observed within the Halema`uma`u vent with a thermal camera. The video speed is approximately x30. Cycles of filling and draining of the lava lake have been observed throughout much of the past week, following a collapse in the vent on March 25. Filling-draining frequencies have ranged from about 10 to 20 cycles per hour.
movie shows recent activity observed within the Halema`uma`u vent with a thermal camera. The video speed is approximately x30. Cycles of filling and draining of the lava lake have been observed throughout much of the past week, following a collapse in the vent on March 25. Filling-draining frequencies have ranged from about 10 to 20 cycles per hour.
Climatic change and the future of forests in the western United States
By Philip van Mantgem, Ecologist
Climatic change and the future of forests in the western United States
By Philip van Mantgem, Ecologist
USGS scientists continue to monitor streamflow during the historic flooding taking place in Fargo, ND. This information provides critical information used to estimate flood dangers and helps protect lives and property.
USGS scientists continue to monitor streamflow during the historic flooding taking place in Fargo, ND. This information provides critical information used to estimate flood dangers and helps protect lives and property.
B-roll footage taken of USGS crews measuring severe flooding during the March 2009 flooding events in Fargo, ND.
B-roll footage taken of USGS crews measuring severe flooding during the March 2009 flooding events in Fargo, ND.
movie shows the robust brown plume associated with a hybrid seismic event at 11:03 am. Brown plumes such as this have appeared occasionally throughout the past year of eruptive activity at the summit, and are often associated with rockfalls.
movie shows the robust brown plume associated with a hybrid seismic event at 11:03 am. Brown plumes such as this have appeared occasionally throughout the past year of eruptive activity at the summit, and are often associated with rockfalls.
Doppler radar can be used for more than predicting the weather—it can be used to record migrating birds!
Doppler radar can be used for more than predicting the weather—it can be used to record migrating birds!
movie shows a thermal video providing views into the Halema`uma`u vent. At a depth of about 130 yards below the vent rim, there is a series of small puffing gas vents, and these occasionally throw small amounts of spatter into the air. The configuration and geometry of these small puffing vents have been observed to change on a daily basis.
movie shows a thermal video providing views into the Halema`uma`u vent. At a depth of about 130 yards below the vent rim, there is a series of small puffing gas vents, and these occasionally throw small amounts of spatter into the air. The configuration and geometry of these small puffing vents have been observed to change on a daily basis.
Geology, Climate, and National Interests
By Donald L. Gautier, Geologist
Geology, Climate, and National Interests
By Donald L. Gautier, Geologist
Passing Strange: A Gilded Age Tale of Love and Deception Across the Color Line"
By Martha Sandweiss, Princeton University
Passing Strange: A Gilded Age Tale of Love and Deception Across the Color Line"
By Martha Sandweiss, Princeton University
movie shows the new ocean entry within the National Park, near the location of the buried Poupou-Kauka West archeological site. The entry consists of a series of narrow lava cascades falling onto the rocks at the base of the sea cliff.
movie shows the new ocean entry within the National Park, near the location of the buried Poupou-Kauka West archeological site. The entry consists of a series of narrow lava cascades falling onto the rocks at the base of the sea cliff.
This video shows thermal imagery of the vent inside Halema`uma`u crater. The lava surface, about 130 yards below the vent rim, is clearly visible and can be seen undergoing cycles of filling and drainback. Filling phases entail a rapidly rising lava level with intense (and loud) spattering, followed by a gradual phase of lava draining back down the conduit.
This video shows thermal imagery of the vent inside Halema`uma`u crater. The lava surface, about 130 yards below the vent rim, is clearly visible and can be seen undergoing cycles of filling and drainback. Filling phases entail a rapidly rising lava level with intense (and loud) spattering, followed by a gradual phase of lava draining back down the conduit.
Beginning in early November 2008 Redoubt Volcano, 106 miles southwest of Anchorage, AK, began to show signs of unrest including significant changes in gas emission and heat output. On November 5, 2008, the Alaska Volcano Observatory (AVO) raised Redoubt's Aviation Color Code to Yellow and the Volcano Alert Level to Advisory.
Beginning in early November 2008 Redoubt Volcano, 106 miles southwest of Anchorage, AK, began to show signs of unrest including significant changes in gas emission and heat output. On November 5, 2008, the Alaska Volcano Observatory (AVO) raised Redoubt's Aviation Color Code to Yellow and the Volcano Alert Level to Advisory.