Tsunamis Earthquakes tsunamis Earthquakes At this site you will find general information on how local tsunamis are generated by earthquakes as well as animations, virtual reality models of tsunamis, and summaries of http://rdre1.inktomi.com/click?u=http://walrus.wr.usgs.gov/tsunami/&y=027ADF
About Geology The Complete Guide To Earth Science Earth science encompasses everything from outer space to the Earth's fiery core, from the most ancient fossils to the landslides and earthquakes of today. Dinosaurs and volcanoes live on this site http://rdre1.inktomi.com/click?u=http://geology.about.com/&y=02386FD111CF59E
Extractions: how to use this Any Bathymetry Beaches Climate Corals Currents Earthquakes Ecosystems El Niño Environmental Change Erosion Floods GIS Global Warming Groundwater Landslides Mapping Meteor Impacts Minerals Monitoring Pollution Remote Sensing Sea-Level Change Sediments Sonar Mapping Tsunamis Volcanoes Wetlands Any Alaska California (Cent/S) Caribbean East Coast Florida Platform Great Lakes Gulf of Mexico (W/Cent) Hawaii International Pacific Northwest U.S. Inland Any Research Projects Educational Materials Photographs Movies Maps Publications Data Sets
Local Tsunamis In The Pacific Northwest (USGS) Onset of October 9, 1995 Manzanillo, Mexico tsunami. For many local tsunamis, the ocean initially recedes before inundation. of these tsunamis were distant tsunamis generated from earthquakes http://walrus.wr.usgs.gov/tsunami/cascadia.html
Extractions: Onset of October 9, 1995 Manzanillo, Mexico tsunami. For many local tsunamis, the ocean initially recedes before inundation. Photo from Tsunami Field Survey Photographs site maintained by Tsunami Hazard Mitigation Program (Costas Synolakis, Director) at USC. In the past century, several damaging tsunamis have struck the Pacific Northwest coast (Northern California, Oregon, and Washington). All of these tsunamis were distant tsunamis generated from earthquakes located far across the Pacific basin and are distinguished from tsunamis generated by earthquakes near the coasttermed local tsunamis (Figure from online edition of This Dynamic Earth The Pacific Northwest is the site of the Cascadia subduction zone, where an oceanic tectonic plate (the Juan de Fuca plate) is being pulled and driven (i.e., subducted) beneath a continental plate (the North American plate). Earthquakes along the fault that is the contact between the two plates, termed the interplate thrust or megathrust, may generate significant local tsunamis in the Pacific Northwest. Except for the 1992 Cape Mendocino earthquake at the southernmost part of the subduction zone, there have been no major earthquakes on the megathrust in historic time. Does this mean that the two plates are sliding past each other freely without generating earthquakes? This would make the Cascadia subduction zone
Natural Hazards In The Pacific Northwest Earthquakes in coastal areas frequently precede tsunamis. The long view of geologyrecognizes that most geologic processes shaping the topography are http://www.oregongeology.com/earthquakes/earthquakehome.htm
Extractions: Oregon is known for its wonderful diversity of natural landscapes including deserts, deep river canyons, high snow-covered mountains, flat well-watered fertile valleys, and a coastline with quiet coves and dramatic headlands. Unavoidably, however, the breathtaking scenery goes hand in hand with geologic processes that can be responsible for recurring and destructive hazards. In the Pacific Northwest, natural geologic catastrophes may be placed into five categories: floods, landslides, earthquakes, volcanic eruptions, and tsunamis. All five of these catastrophes have occurred in Oregon within the past century. Quite often the effect of two or more events occurring simultaneously greatly accentuates the destructiveness of the episode. Floods are nearly always accompanied by landslides, mudflows are often a significant part of volcanic activity, and a major quake following a flood results in a multitude of large and small landslides. Earthquakes in coastal areas frequently precede tsunamis.
Tsunamis In The Pacific Northwest Depositional characteristics of a submarine debris flow. Journal of Geology92 707727. Schwab, JW 1999. tsunamis on Troitsa Lake, British Columbia. http://www.emporia.edu/earthsci/student/geert1/reference1.htm
Extractions: Tsunamis in the Pacific Northwest References Adams, J. 1990. Paleoseismicity of the Cascadia subduction zone - evidence from turbidites off the Oregon-Washington coast. Tectonics Atwater, B.F., and Hemphill-Haley, E. 1997. Recurrence intervalsfor great earthquakesof the past 3500 years at northeastern Willapa Bay, Washington. U.S. Geological Survey Professional Paper1576. Atwater, B.F., and Moore, A.L. 1992. A tsunami about 1000 yr ago in Puget Sound Washington. Science Benson, B.E., Grimm, K.A. and Clague, J.J. 1997. Tsunami deposits beneath tidal marshes on northwestern Vancouver Island, British Columbia. Quaternary Research Bornhold, B.D., and Harper. J.R. 1998. Engineering geology of the coastal and nearshore Canadian Cordillera. In Proceedings of the 8th Congress of the International Association of Engineering Geology and the Environment , I: 63-75. Clague, J.J. 1995. Early historical and ethnographic accounts of large earthquakes and tsunamis on western Vancouver Island. In Current Research 1995-A. Geological Survey of Canada. Ottawa, Ontario pp. 47-50. Clague, J.J. 1996.
Tsunamis & Earthquakes At The USGS Below you will find general information on how local tsunamis are generated byearthquakes as well as animations, virtual reality models of tsunamis, and http://walrus.wr.usgs.gov/tsunami/
Extractions: Below you will find general information on how local tsunamis are generated by earthquakes as well as animations, virtual reality models of tsunamis, and summaries of past research studies. The scope of tsunami research within the USGS, however, is broader than the topics covered here. USGS researchers have also provided critical research toward understanding how sediments are transported during tsunami runup (see, for example, analysis of deposits (1.8 MB) from the recent Papua New Guinea tsunami) and deciphering the geologic record of prehistoric tsunamis (for example, in the Pacific Northwest ). The USGS also collaborates with the tsunami research group at NOAA . As part of this effort under the National Tsunami Hazard Mitigation Program , the USGS has upgraded the seismograph network and communication functions of the west coast tsunami warning system (termed CREST Consolidated Reporting of EarthquakeS and Tsunamis). For further information select one of the topics below. Other tsunami sites are listed on the links page
Earthquakes, Tsunamis And Landslides Earthquakes, tsunamis and Landslides. High priority is given to densely populatedareas with high frequency or large size earthquakes or landslides http://walrus.wr.usgs.gov/hazards/offquake.html
The ITSU Web Site On tsunamis. A reading List on tsunamis, What are tsunamis, and What causes them?tsunamis are ocean waves produced by earthquakes or underwater landslides. http://ioc.unesco.org/itsu/categories.php?category_no=4
Countrybookshop.co.uk - Sweeping Tsunamis Add Item To Wish List Send information about Sweeping tsunamis to my Category geologyand earth sciences Category geography Category for national curriculum http://www.countrybookshop.co.uk/books/index.phtml?whatfor=0431178321
Savage Earth Savage Earth This Internet site, maintained by the Public Broadcasting System (PBS), is an extension of the television series that explores the destructive power of earthquakes, volcanoes, and http://rdre1.inktomi.com/click?u=http://www.pbs.org/wnet/savageearth/index.html&