Videos

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

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.

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.

By Michael H. Carr, USGS Astrogeologist

• Data from a recent polar lander, two still active rovers
  and three spacecraft in orbit are changing our
  perceptions about how Mars evolved. What do 
  these new data imply for the prospects of past and present life?

A groundwater-flow model of the Mississippi embayment was used to evaluate changes in water-level altitudes after the addition of wells that simulate potential future pumping from the Sparta aquifer in the Bayou Meto-Grand Prairie area of eastern Arkansas (shown within the black outline) for the 30-year period from 2007 through 2037.

Virtual fly-through of San Francisco Bay revealing the seafloor as if the water was drained from the Bay. The movie flies through the south and central Bay, pausing over prominent seafloor features including, large sand waves, rock pinnacles, current scour pits, as well as many human impacts on the seafloor.

This video describes research conducted by Dr. Karen McKee, USGS Research Ecologist, and her university partners, Dr. Irv Mendelssohn (Louisiana State University) and Dr. Mark Hester (University of Louisiana). They are studying the effects of hurricanes on marsh and mangrove wetlands in the Mississippi River Delta, which contains over 40% of the U.S.

Commercial production - localities visited by mineral collectors

by Pete Modreski, USGS Gemstone Specialist

The erupting vent within Halema'uma'u Crater at Kilauea's summit (see http://hvo.wr.usgs.gov/kilauea/timeline/ for links describing eruptive activity at the summit of Kilauea Volcano) typically produces a white to gray gas plume dominated by steam.

The USA National Phenology Network

by Jake Weltzin, NPN Executive Director

Earthquakes can be far more than just geological phenomena--they can greatly alter the way we live.

In this video, "The Great Southern California ShakeOut: An Earthquake Scenario Based On Science," USGS scientists and their partners talk about the ways science is used to help build safer communities in Southern California.

This film depicts the realistic outcome of a hypothetical, but plausible, magnitude 7.8 earthquake on the San Andreas fault in Southern CA.

This film takes you on a visceral journey through the USGS ShakeOut Earthquake Scenario.

The Great ShakeOut: Allan Renazco — Captain, California Army National Guard, Exercise Planner

The Great ShakeOut: Interview with Cheryl Curley: Staff Development Coordinator, Desertare

Division Manager, San Bernandino County Fire Deparment, Office of Emergency Services

The Great ShakeOut: Dennis Mileti — Professor Emeritus University of Colorado, Boulder Natural Hazards Center

The Great ShakeOut: Gary Sturdivan: Manager, East Valley Water District Security and Emergency

Deputy Director of Communications, Office of Homeland Security, Office of the Governor, California