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Two New CMG Web Sites: A Wealth of Information on Tsunamis, and Virtual Flights Through Multibeam Mapping Data March 2000 in this issue:  previous story | next story View of the floor of Lake Tahoe showing parts of the debris avalanche featured in a new fly-by movie. A new Web site, "Tsunamis and Earthquakes-Tsunami Research at the USGS," provides general information on how local tsunamis are generated by earthquakes and also offers animations, virtual reality models of tsunamis, and summaries of past research studies. It provides links to additional sites describing USGS research on such topics as understanding how sediment is transported during tsunami run-up and deciphering the geologic record of prehistoric tsunamis. It also lists numerous links to USGS collaborators and other institutions studying tsunamis around the world. The site offers a wealth of information for novices and experts alike. Recent additions to the Pacific Seafloor Mapping Project Web site are two fly-by movies of (1) the floor of Lake Tahoe on the California-Nevada border and (2) a reef platform in West Flower Gardens National Marine Sanctuary in the Gulf of Mexico. Visit the Fly-by Quicktime Movies of Selected Multibeam Surveys page to cruise through multibeam bathymetric data collected by Jim Gardner. In Lake Tahoe, you will fly throughout the lake, viewing a large underwater debris avalanche measuring 200 m in height, as well as large debris blocks scattered into the deep basin by the avalanche. In West Flower Gardens, you will fly by a modern living reef platform in 15 m of water depth. These movies allow for visualization techniques that help researchers understand the spatial distribution and relative depths of geomorphic features that may be more difficult to interpret from traditional geologic maps. Tsunamis and Earthquakes-Tsunami Research at the USGS U.S. Geological Survey (USGS) Pacific Seafloor Mapping Project U.S. Geological Survey (USGS) Flyby Movies of Multibeam Surveys U.S. Geological Survey (USGS) in this issue:  previous story | next story

March 2000 Mailing List: Sign up to receive monthly email updates: in this issue: cover story: Moloka'i Coral Reef Study Pt. 1 Moloka'i Coral Reef Study Pt. 2 Massachusetts Bay Cruise Two New Web Sites Sandwich High School English & Metric Units Tsunami Workshop NOAA/USGS Benthic Habitat Initiative Sustainable Seas USGS/Geological Survey of Canada MARGINS Science Education Partnership GD Safety Thomas Jefferson Medal CMG "Youngster" Wins Science Award Winning Photo Senate Commendation Presentations BRD in St. Pete Woods Hole Community Activities Dillon & Winters on BBC Radio March Publications List

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