Informazioni e Documenti dalla Rete sullo TSUNAMI |
Chile
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TSUNAMI PAGETsunami: examples, effects, explanatory graphicsIl sito è educational , curato dal Dr. Brennan's TSUNAMI PAGE |
Surviving a Tsunami—Lessons from Chile, Hawaii, and Japan |
A tsunami is a series of ocean waves most commonly caused by an earthquake beneath the ocean floor. They can be caused by local quakes, such as in 1992, when a Cape Mendocino quake produced a tsunami that hit Humboldt Bay within 20 minutes. Tsunamis can also be caused by quakes in far away areas, such as in 1964, when an earthquake in Alaska produced a destructive tsunami that inundated Crescent City. Tsunamis have killed in the past. They are always a possible threat in the seismically active North Coast region, however, destructive tsunamis are rare and shouldn't ruin your visit to the beach. In the event that you do find yourself near the coast when an earthquake hits, be aware of the following guidelines:
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Major Tsunamis of 1992 - Nicaragua and Indonesia November 4, 1952 Kamchatka Tsunami
Pictures are from the National
Geophysical Data Center's Tsunami picture CD-ROM.
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Nuova Zelanda The GeoNet Data Centre is responsible for the capture of all geophysical data streams from field instruments or third party sources, the basic processing of raw data and the maintenance of archives. |
Established in 1949, the Pacific Tsunami Warning Center (PTWC) in Ewa
Beach, Hawai`i, provides warnings for teletsunamis to most countries in the Pacific Basin as well as to Hawai`i and all other US interests in the Pacific outside of Alaska and the US West Coast. Those areas are served by the West Coast / Alaska Tsunami Warning Center (WC/ATWC) in Palmer, Alaska. PTWC is also the warning center for Hawai`i's local and regional tsunamis.
TSUNAMI
THE GREAT WAVES |