61. Virtual Volcano : Discovery Channel Make a volcano erupt. Pompeii The Last Day. Explore a Virtual Volcano. Pompeii ». advertisement. newsletter. SITE SEARCH. SUBSCRIBE TO OUR NEWSLETTERS http://dsc.discovery.com/convergence/pompeii/interactive/interactive.html

Alaska Experiment Cash Cab Deadliest Catch Dirty Jobs ... More Products Pompeii: The Last Day Explore a Virtual Volcano Pompeii advertisement Sponsored Links SITE SEARCH SUBSCRIBE TO OUR NEWSLETTERS CREDITS DISCOVERY SITES Discovery Channel / TLC Animal Planet Discovery Health Science ... Discovery Education VIDEO Discovery Channel Video Player SHOP Toys Games Telescopes DVD Sets ... Gift Ideas CUSTOMER SERVICE Contact Us Free Newsletters RSS Sitemap ... TV FAQs CORPORATE Discovery Communications, LLC Advertising Careers @ Discovery Visitor Agreement ... click here . Questions? See the policy for the contact information.

62. USGS Hawaiian Volcano Observatory (HVO) An archived home page that highlights lava pouring into the sea from Kilauea Volcano, Hawaii. http://hvo.wr.usgs.gov/

Eruption Update Eruption Summary Hazards History ... Levels and Wind Direction in the Hawai`i Volcanoes National Park (website operated by the National Park Service) Halema`uma`u gas plume This was the view from the Mauna Loa Strip Road in Hawai`i Volcanoes National Park at 7 a.m. this morning. Stagnant surface winds, combined with higher elevation winds from the southwest, caused the plume to rise straight up and then shear off to the northeast. April 8, 2008. Photo by C. Heliker Halema`uma`u plume from the Hawaiian Volcano Observatory at 5 p.m. April 8, 2008. Photo by C. Heliker Halema`uma`u gas plume becomes ash-laden. March 24, 2008. Photo by M. Sako Close-up view of the ash-laden Halema`uma`u gas plume. March 24, 2008. Photo by C. Heliker Two new pamphlets on volcanic ash fall hazards and other information can be found at the International Volcanic Health Hazard Network (IVHHN) THE HEALTH HAZARDS OF VOLCANIC ASH A guide for the public GUIDELINES ON PREPAREDNESS BEFORE, DURING AND AFTER AN ASHFALL Current SO Levels and Wind Direction in the Hawai`i Volcanoes National Park Closed Areas and Advisories [National Park Service website] For more information about the recent activity, see:

63. Operational Significant Event Imagery OSEI volcano products include multichannel color composite imagery showing The following image files have recently been added to the Volcano archive. http://www.osei.noaa.gov/Events/Volcano/

2008 - index OSEI volcano products include multichannel color composite imagery showing ash clouds (VSH), hotspots from lava flow (VIR) or both (VOL). We also create grayscale "split-window" images which use a channel differencing technique that enhances the appearance of ash clouds in imagery (DIF). This technique is oftenuseful for distinguishing ash clouds from water vapor clouds. The Washington Volcanic Ash Advisory Center has real time satellite imagery and derived advisory products at: Washington VAAC Page The following image files have recently been added to the Volcano archive... Events/Volcano/Chile/2008/VSHchaiten148_G10L.jpg Events/Volcano/Chile/2008/VSHchaiten148_G10.jpg Location Directory Map Link Chile Chile MAP Congo Congo MAP Ecuador Ecuador MAP Guatemala Guatemala MAP Hawaii Hawaii MAP Iceland Iceland MAP IndianOcean IndianOcean MAP Indonesia Indonesia MAP MAP Japan Japan MAP Kamchatka Kamchatka MAP Marianas Marianas MAP Mexico Mexico MAP Montserrat Montserrat MAP New Zealand NewZealand MAP Nicaragua Nicaragua MAP Papua New Guinea MAP Philippines Philippines MAP Russia Russia MAP Sicily Sicily MAP MAP MAP Vanuatu Vanuatu MAP Links OSEI Home OSEI Image of the Day New Imagery Daily Report ... OSEI Media Resource Special Coverage Hurricane Mitch Guagua Pichincha Iraq Imagery Subscriptions/Unsubscriptions Educational Resources NSTA Presentation Significant Event Imagery Current Events Dust Storms Fires Floods ... OSEI Map Viewer

64. Volcano Facts, Volcano Information, Volcano Videos, Volcano Photos - National Ge Get Volcano facts, photos, wallpapers, news and safety tips at National Geographic. http://science.nationalgeographic.com/science/earth/natural-disasters/volcano-pr

Site Index Subscriptions Shop Newsletters ... Catalog Quick Shop Sign up for free Newsletters Once a month get new photos and expert tips. Sign up advertisement Science and Space Main Health and Human Body Earth ... A-Z Volcanoes Photograph courtesy NASA Earth Observatory When thick magma and large amounts of gas build up under the surface, eruptions can be explosive, expelling lava, rocks and ash into the air. Less gas and more viscous magma usually mean a less dramatic eruption, often causing streams of lava to ooze from the vent. The mountain-like mounds that we associate with volcanoes are what remain after the material spewed during eruptions has collected and hardened around the vent. This can happen over a period of weeks or many millions of years. A large eruption can be extremely dangerous for people living near a volcano. Flows of searing lava, which can reach 2,000 degrees Fahrenheit (1,250 degrees Celsius) or more, can be released, burning everything in its path, including whole towns. Boulders of hardening lava can rain down on villages. Mud flows from rapidly melting snow can strip mountains and valleys bare and bury towns. Ash and toxic gases can cause lung damage and other problems, particularly for infants and the elderly. Scientists estimate that more than 260,000 people have died in the past 300 years from volcanic eruptions and their aftermath. About 1,900 volcanoes on Earth are considered active, meaning they show some level of activity and are likely to explode again. Many other volcanoes are dormant, showing no current signs of exploding but likely to become active at some point in the future. Others are considered extinct.

65. Volcano Easier A volcano is a mountain topped with vents, holes, and craters. When the volcano erupts, lava, ash, cinders, dust, and hot gas can pour out the top. http://42explore.com/volcano.htm

The Topic: Volcano Easier -A volcano is a mountain topped with vents, holes, and craters. When the volcano erupts, lava, ash, cinders, dust, and hot gas can pour out the top. Magma (when it's deep in the ground) or lava (when it reaches the earth's surface) is very hot, liquid rock. When the lava cools down, it turns into hard rock. Ash is a gray powder that results from material being burned in the volcano. Ash can be carried in the air for many miles. Harder - Volcanoes occur along the earth's tectonic plates where molten rock is forced upward from magma reservoirs deep in the earth. The magma may be fifty to one hundred miles below the ground. As the magma rises, it gives off gases that cause an explosion in the vents of the volcano. Lava can reach temperatures of over 2000 degrees F. Molten rock, dust, and gases push through the opening in the earth's crust and form a mountain. A violent explosion can cause the top of the volcano to blow off leaving a deep crater. There are four types of volcanoes: active, intermittent, dormant, and extinct. Volcanoes can occur on land or in the water.

66. NOVA | Volcano's Deadly Warning | PBS In this companion Web site to the NOVA program Volcano s Deadly Warning, read an interview with seismologist Bernard Chouet, who has come up with a new http://www.pbs.org/wgbh/nova/volcano/

var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); Volcanoes Talking Bernard Chouet describes the mysterious seismic signal he discovered that hints when a volcano might blow. Emergency Response Team How a crack unit of volcanologists tackles volcanic unrest abroad. Anatomy of a Volcano Distinguish your magma from your tephra, your lava from your lahar, etc. Seismic Signals Discover the hidden signatures that volcanologists seek in the noise emanating from a restless volcano. TV Program Description NOVA News Minute Watch a news clip related to NOVA's "Volcano's Deadly Warning" program. Teacher's Guide Program Transcript Buy the Video Credits ... e-mail bulletin Support authoritative science programming like NOVA by making a pledge to your local PBS station today. Pledge now. This Web site was produced for PBS Online by WGBH. WGBH Educational Foundation

67. Discovery Kids :: Make A Volcano Make a volcano. Click Here to learn more about volcanos and Pompeii The Last Day. Pictures DCI . By visiting this site, you agree to the terms and http://kids.discovery.com/games/pompeii/pompeii.html

var oasRand = 50190448; var oasPositionArray = "x12,x21,x24,Top3"; Advertisement May 29, 2008 Discovery Kids Shows Bindi the Jungle Girl Darcy's Wild Life Endurance Adventure Camp DinoSapien Flight 29 Down Growing Up Creepie The Future is Wild Grossology Time Warp Trio Trading Spaces Tutenstein Saving a Species A Year on Earth Croc Files Jeff Corwin Unleashed Serious Kenny the Shark Mystery Hunters Saddle Club Scout's Safari Skunked TV Strange Days Truth or Scare Prehistoric Planet Pompeii Click Here to learn more about volcanos and Pompeii: The Last Day By visiting this site, you agree to the terms and conditions of our Visitor Agreement . Please read. To see the new policy, click here . Questions? See the policy for the contact information. Discovery Communications, LLC. The leading global real-world media and entertainment company. Advertisement

68. Tramline Volcano Field Trip Tramline Volcano Field Trip. Stop 1—Welcome to the Tramline Volcano Tour Stop 2—Cascades Volcano Observatory Stop 3—Eruptions Stop 4—Watch Out! http://www.field-trips.org/tours/sci/volcano/_tourlaunch1.htm

This web page uses frames, but your browser doesn't support them.

69. HVO Kilauea Status Page Alerts and notifications, display of CAP messages posted by the Hawaiian Volcano Observatory, US Geological Survey Volcano Hazards Program. http://volcano.wr.usgs.gov/kilaueastatus.php

deformation images timelapse movies maps ... Halema`uma`u webcam Recent Kilauea Status Reports, Updates, and Information Releases HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE Thursday, May 29, 2008 07:45 HST (Thursday, May 29, 2008 17:45 UTC) KILAUEA VOLCANO (CAVW#1302-01-) Volcano Alert Level: WATCH Aviation Color Code: ORANGE This report on the status of Kilauea volcanic activity, in addition to maps, photos, and webcam images (available using the menu bar above), was prepared by the USGS Hawaiian Volcano Observatory (HVO). Information on the status of Hawai`i Volcanoes National Park can be found at http://www.nps.gov/havo/ or 985-6000. Information on the Hawai`i County Viewing Area can be found at http://www.lavainfo.us or 961-8093. Activity Summary for last 24 hours: No significant changes. Kilauea Volcano is active at two locations. At the summit, small amounts of ash and elevated amounts of sulfur dioxide continued to erupt from the Halema`uma`u vent. At the east rift eruption site, lava continued to erupt from the TEB vent area and flow through tubes to the ocean. Last 24 hours at Kilauea summit: Molten lava probably exists at shallow depth within the new vent, but cannot yet be seen directly from the surface. The incandescence seen at night is caused by wall rock heated by the radiant molten lava below and the gas released and rising up through the vent.

70. Volcanos Note Volcanos like Mt. St. Helens can explode. That s because there is water in the lava (remember, the lava came from under the ocean originally). http://zebu.uoregon.edu/~soper/Earth/volcanos.html

Volcanos Mount Saint Helens, just north of the Columbia River. Note: Volcanos like Mt. St. Helens can explode. That's because there is water in the lava (remember, the lava came from under the ocean originally). The water is really hot, and when some of the pressure is released, it can turn to steam. That makes its volume much bigger, so the mountain can get blasted into the air. You may recall that there is a big volcano in Hawaii, which doesn't explode. There are two reasons. First, the lava in volcanos like this is a lot less viscous, so water vapor bubbles can more easily bubble up to the surface instead of pushing the lava up. Second, there is less water (0.5% by weight instead of 5%). Thanks to Prof. K. Cashman for help on this. Take a class from her if you want to learn about volcanos. ASTR 121 Home Davison E. Soper, Institute of Theoretical Science, University of Oregon, Eugene OR 97403 USA soper@bovine.uoregon.edu

71. Volcano - MSN Encarta Encarta Encyclopedia volcano article. http://encarta.msn.com/encyclopedia_761570122/volcano.html

var s_account="msnportalencarta"; MSN home Mail My MSN Sign in ... more Hotmail Messenger My MSN MSN Directory Air Tickets/Travel Autos City Guides Election 2008 ... More Additional Reference Materials Thesaurus Translations Multimedia Other Resources Education Resources Math Help Foreign Language Help Project Planner ... Help Editors' Picks Great books about your topic, Volcano , selected by Encarta editors Related Items Cinder Cone Lava more... Encarta Search Search Encarta about Volcano Advertisement Windows Live® Search Results Volcano - Wikipedia, the free encyclopedia A volcano is an opening, or rupture, in a planet's surface or crust , which allows hot, molten rock, ash, and gases to escape from below the surface. Volcanoes.com Educational site with articles on recent volcanic activity. Volcano World - The Web's Premier Source of Volcano Info The Web's Premier Source of Volcano Info ... A Collaborative Higher Education, K-12, and Public Outreach project of the North Dakota and Oregon Space Grant Consortia See all search results in Windows Live® Search Results Also on Encarta 7 tips for funding an online degree How to succeed in the fashion industry without being a top designer Presidential Myths Quiz Volcano Encyclopedia Article Find Print E-mail Blog It Multimedia 20 items Article Outline Introduction Volcano Formation Volcanic Materials Eruption ... Extraterrestrial Volcanoes I Introduction Print this section Volcano , mountain or hill formed by the accumulation of materials erupted through one or more openings (called volcanic vents) in the earth's surface. The term

72. Page Has Moved Volcano data, volcano slide sets available from NGDC. http://www.ngdc.noaa.gov/seg/hazard/volcano.shtml

Search NGDC Search NOAA NOAA NESDIS NGDC comments We have made changes to our website The page you requested: http://www.ngdc.noaa.gov/seg/hazard/volcano.shtml is now at the following URL: http://www.ngdc.noaa.gov/hazard/volcano.shtml Please click on the new URL to continue or select from the subject list below and update any bookmarks. Thank you. Natural Hazards: Tsunami, Earthquake, Volcano, Geothermal http://www.ngdc.noaa.gov/hazard Geomagnetism, Magnetic Models, Declination Calculators http://www.ngdc.noaa.gov/geomag Gravity http://www.ngdc.noaa.gov/mgg/gravity Topography http://www.ngdc.noaa.gov/mgg/topo World Data Center for Solid Earth Geophysics http://www.ngdc.noaa.gov/geomag/wdc Ecosystems Informatics, Soils, Groundcover http://www.ngdc.noaa.gov/ecosys NOAA NESDIS NGDC ... Hazards questions: Questions NGDC home maintained by: Operator

73. Volcano Products - Satellite Services Division SSD Volcano banner image and link to Volcano Products Volcano Observatories Cascades Volcano Observatory (CVO) Alaska Volcano Observatory Hawaiian http://www.ssd.noaa.gov/VAAC/

DOC NOAA NESDIS OSDPD ... Our Mission Search OSDPD Text Products Volcanic Ash Advisories Washington VAAC (Updated each message) Washington VAA Archive (Updated Daily) Current Advisories from Other VAACs Advisory Mailing list Information Volcanic Ash Advisory Centers All Current VAACs The Washington VAAC About The Washington VAAC Program Resources By Volcano: Quick access Table Anatahan, Mariana Islands (0804-20) Colima, Mexico (1401-04) Central American Volcanoes ... St. Helens, Washington, USA (1201-05) Related Papers and Case Studies Special Coverage (OSEI) Guagua Pichincha Operations Of The Washington Volcanic Ash Advisory Center Paper presented at CAR/SAM/RAN/3 Recent Volcanic Eruption Case Studies and Examples Local Volcano Link Pages Washington VAAC Reference Links General Information Links Current Activity Links Volcano "Cams" Outside Volcano Links SSEC Real-Time Data - Volcano Watch Smithsonian Institution - Global Volcanism Program MTU Volcanoes Page Volcanic Ash Clouds and Aicraft Safety ... International Civil Aviation Organization (ICAO) Volcano Observatories Cascades Volcano Observatory (CVO) Alaska Volcano Observatory Hawaiian Volcano Observatory Montserrat Volcano Observatory (MVO) ... CENAPRED (Mexico - Spanish) Insituto Geofisico (Ecuador - Spanish) Graphic Products Graphic Analysis of ash plume (sample) - attached to VAA when available.

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 4     61-73 of 73    Back | 1  | 2  | 3  | 4