1. Volcanoes.com Educational site with articles on recent volcanic activity. http://www.volcanoes.com/

For general information about how volcanoes work, please try some of these sites: How Volcanoes Work Volcano World USGS Please try these first before contacting Volcanoes.com. Thank you! Click here for links to volcano sites around the world: Click here for the latest volcanic activities, updated daily from around the world. Search the Web for other information about volcanoes, by clicking here.7 Valley of the Geysers in Kamchatka, Russia - is it now only a memory? Update in July.... Scientists survey damage ... catastrophic..." Do you want to search the Encyclopedia on-line about volcanoes? Click here. F Photo Gallery What's New Book Reviews Volcanoes Around the World ... Return Home

2. How Volcanoes Work This website is a comprehensive educational resource that describes the science behind volcanoes and volcanic processes. http://www.geology.sdsu.edu/how_volcanoes_work/

A comprehensive educational resource on the science behind volcanoes and volcanic processes.

3. Volcanoes Interactive exhibit, part of the Exhibits Collection of Annenberg Media. Activities invite visitors to melt rocks, locate famous volcanoes and play the role http://www.learner.org/exhibits/volcanoes

4. FEMA FOR KIDS: VOLCANOES Explains what a volcano is and identifies active volcanoes in the United States. http://www.fema.gov/kids/volcano.htm

Volcano Watch: Mapping New Lava Volcano Facts Mount St. Helens Pele: The Volcano Goddess ... Water, Wind and Earth Game volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. Gases and rock shoot up through the opening and spill over or fill the air with lava fragments. Eruptions can cause lateral blasts, lava flows, hot ash flows, mudslides, avalanches, falling ash and floods. Volcano eruptions have been known to knock down entire forests. An erupting volcano can trigger tsunamis, flashfloods, earthquakes, mudflows and rockfalls. ctive volcanoes in the U.S. are found mainly in Hawaii, Alaska, California, Oregon and Washington. The greatest chance of eruptions near areas where many people live is in Hawaii and Alaska. The danger area around a volcano covers about a 20-mile radius. In May 18, 1980, Mount St. Helens erupted in Washington state. It killed 58 people and caused more than $1 billion in property damage. resh volcanic ash, made of pulverized rock, can be harsh, acidic, gritty, glassy and smelly. The ash can cause damage to the lungs of older people, babies and people with respiratory problems.

5. U.S. Geological Survey, Volcano Hazards Program A comprehensive overview of the US Geological Survey s Volcano Hazards Program and current volcanic activity in the United States. http://volcanoes.usgs.gov/

USGS Home Contact USGS Search USGS Volcano Hazards Program Volcano Observatories: Alaska Cascades Hawaii Long Valley ... Yellowstone Welcome to the Volcano Hazards Program (VHP) of the U.S. Geological Survey Volcanic Activity Information: Most Recent Updates for U.S. Volcanoes (includes Mariana Islands) Last Seven Days of U.S. Volcano Updates Information on Volcanic Activity in Russia Weekly Report of Worldwide Volcanic Activity Volcano Hazards: Location Historical eruptions Reducing Volcanic Risk: Strategy for reducing volcanic risk Volcano monitoring Emergency planning Warning schemes ... Volcanic Ash Information USGS Work Abroad: Volcano Disaster Assistance Program Resources: New online reports Photo glossary Volcano fact sheets Volcano FAQs ... Volcano Watch (HVO) VHP News Preview the new VHP Web Site 24 April 2008 View the new VHP Web Site we've been building to better highlight our volcano status information. Access the latest U.S. Volcano Alerts and Updates from our Home Page, learn what's going on at our volcanoes with elevated statuses on our new Elevated Status page, and don't miss our U.S. Volcano Status map. The site construction phase will continue until early October 2008 when we make the site live at this (volcanoes.usgs.gov) address in time for Earth Science Week . You can see the new site under construction at http://volcano.wr.usgs.gov

6. USGS Cascades Volcano Observatory (CVO) The US Geological Survey s Cascades Volcano Observatory Website, which focuses on hazards, activity, history, and monitoring of volcanoes, with emphasis on http://vulcan.wr.usgs.gov/

Cascades Volcano Observatory USGS Home Geology Water VHP ... Site Map Special Features News and Current Events Mount St. Helens 2004 updates, images, and links - with link to CVO Talks and Presentations - World-Wide Volcanoes in the News - World-Wide Current Volcanic Activity Cascade Range Current Activity Updates Current Status of the Cascade Range Volcanoes Cascade Range Volcanoes Listing Cascades Volcanoes listing Hazards Assessment Reports and Maps Latest Hazards Assessment Reports and Maps (in PDF) for various volcanoes in the Cascade Range Educational Outreach Learn about Volcanoes - FAQ's - Terminology - Read About Volcanoes - Become a Volcanologist - Activities and "Fun Stuff" - Videos and Posters - "Pictograms" - Teachers Packets and Aids - Educational Links, etc. Living With Volcanoes America's Volcanic Past - The "Plus Side" of Volcanoes - Historical, Cultural, and Economic Side of Volcanoes - "VolcanoCams" - Volcanoes in the Movies - What to do if a Volcano Erupts, etc. Visit a Volcano Information and Maps to the Cascade Range - Travel and Hiking Information - Links to other Agencies - National Parks, Volcanic Monuments, and National Forests - Tourism and Lodging - America's Volcanic Past - Armchair Tours of the Cascade Volcanoes - Climb A Volcano, etc.

7. MTU Volcanoes Page Provides information about volcanic hazard mitigation. http://www.geo.mtu.edu/volcanoes/

Welcome to the Michigan Technological University Volcanoes Page Sponsored by the Keweenaw Volcano Observatory. Michigan Tech Houghton, MI USA Our Purpose A primary focus of volcanology is to provide scientific and educational information that can lead to hazard mitigation. Michigan Tech's Volcanoes Page aims to provide information about volcanoes to the public and to complement other informational sites on the web. We started this site when there were almost no other volcano sitesnow there are lots, and many of them have far more resources. So we now aim to fill in spots that aren't covered elsewhere. Send your suggestions! What is a volcano? We could say a volcano is a liquid rock plumbing system which extends from several 10's of kilometers depth to the earth's surface, and includes the near vent deposits of eruptions. Is this a good definition? Is this a volcano? How about this ? Or this? Earth's Volcanoes What's happening now? Smithsonian Institution/ USGS Which are earth's active volcanoes? Smithsonian Institution Global Volcanism Network Details of recent activity GVN Monthly Bulletin How Volcanoes Work NASA SDSU Useful links by volcano- USGS-CVO Volcanoes of Canada Geological Survey of Canada Cascade Volcano Web Cams Webcams of Italian VolcanoesINGV The Nature of Volcanoes Volcano World individual volcano links VW-NoDakota Volcanic Hazards Mitigation USGS Volcanic Cloud Hazards to Aviation - This page aims to provide information about how volcanic ash clouds affect aircraft, and how to avoid this hazard.

8. Volcanoes An online volcanology textbook by Robert I. Tilling of the United States Geological Survey. http://pubs.usgs.gov/gip/volc/

Go to Table of Contents Text-only version VIEW a list of other USGS General Interest Publications Maintained by Eastern Publications Group Web Team Last modified 5/7/97

9. Volcanoes Online volcanoes Online Your Ultimate Guide to volcanoes on the Net! Brought to you by Thinkquest Team 17457. Do sign the guestbook. =) http://library.thinkquest.org/17457/english.html

MEDIACITY SINGAPORE website This site requires a frames capable browser such as Navigator 3.0 (and higher) or Microsoft Internet Explorer 3.0 (and higher). Please download the latest browsers from their respective websites.

10. USGS Learning Web :: Lesson Plans :: Volcanoes :: Introduction Imagine hearing a volcano erupt thousands of miles away. Imagine looking through binoculars and seeing the top of a mountain collapse. http://interactive2.er.usgs.gov/learningweb/teachers/volcanoes.htm

TEXT VERSION Introduction (grades 4 - 8) *This packet is only available online. (From VOLCANOES! Poster. All the images are clickable for larger view.) (Left: Poster Fig. 1) Volcanic eruptions are among the Earth's most powerful and destructive forces. Imagine hearing a volcano erupt thousands of miles away. Imagine looking through binoculars and seeing the top of a mountain collapse. Imagine discovering an ancient Roman city that had been buried in volcanic ash. Volcanoes are also creative forces. The Earth's first oceans and atmosphere formed from the gases given off by volcanoes. In turn, oceans and an atmosphere created the environment that made life possible on our planet. Volcanoes have also shaped the Earth's landscape. Many of our mountains, islands, and plains have been built by volcanic eruptions. Why Do Volcanoes Erupt? Deep within the Earth it is so hot that some rocks slowly melt and become a thick flowing substance called magma . Because it is lighter than the solid rock around it, magma rises and collects in magma chambers. Eventually some of the magma pushes through vents and fissures in the Earth's surface. A volcanic eruption occurs! Magma that has erupted is called

11. Volcanoes Modules Page Image that says volcanoes. Orting Information volcanoes the Earth Narrative of Mt St Helens Living with volcanoes Volcanology http://www.cotf.edu/ete/modules/volcanoes/volcano.html

The published content is a student exercise only and does not reflect current conditions. Decide . whether to build a new high school in the shadow of Mt. Rainier, . what the prospects are for the population near Kilauea, . what should be done in the Portland area when Mt. Hood starts acting like Mt. St. Helens, . if we are facing an eruption in Yellowstone as devastating as a nuclear attack. Situations Yellowstone Information Kilauea Information Mt Hood Information ... Exploring the Environment HTML code by Chris Kreger Maintained by ETE Team Last updated October 01, 2007 Puzzle Photo: Courtesy of NGDC/NOAA Some images © 2004 www.clipart.com Privacy Statement and © 1997-2004 by Wheeling Jesuit University/NASA-supported Classroom of the Future. All rights reserved. Center for Educational Technologies, Circuit Board/Apple graphic logo, and COTF Classroom of the Future logo are registered trademarks of Wheeling Jesuit University.

12. Howstuffworks "How Volcanoes Work" volcanoes are some of nature s most aweinspiring displays, with everything from exploding mountaintops to rivers of lava. Learn how all the different types http://science.howstuffworks.com/volcano.htm

HowStuffWorks.com RSS Make HowStuffWorks your homepage Get Newsletter Search HowStuffWorks and the web: Science Earth Science Natural Disasters Unpredictable forces of nature like tornados and hurricanes can have a devastating impacts on our societies and environment. Learn how natural disasters work and how science aims to better predict them. Related Categories: REFERENCE LINKS Print Email Cite Please copy/paste the following text to properly cite this How Stuff Works article: How Volcanoes Work by Tom Harris Inside This Article Introduction to How Volcanoes Work Magma and Plate Tectonics Forming Volcanoes Erupting Magma Types of Eruptions: Plinian, Hawaiian and Strombolian ... articles Whenever there is a major volcanic eruption in the world, you'll see a slew of newspaper articles and nightly news stories covering the catastrophe, all stressing a familiar set of words violent, raging, awesome. When faced with a spewing volcano, people today share many of the same feelings volcano-observers have had throughout human history: We are in awe of the destructive power of nature, and we are unsettled by the thought that a peaceful mountain can suddenly become an unstoppable destructive force! While scientists have cleared up much of the mystery surrounding volcanoes, our knowledge has not made volcanoes any less amazing. In this article, we'll take a look at the powerful, violent forces that create eruptions, and see how these eruptions build volcanic structures like islands.

13. Hawai'i Volcanoes National Park - Hawai'i Volcanoes National Park (U.S. National The official site about the most popular destination on the Big Island. Detailed volcano safety and park attraction information. http://www.nps.gov/havo

var gMenuControlID=0; var menus_included = 0; var jsPageAuthorMode = 0; var jsSessionPreviewON = 1; var jsDlgLoader = '/havo/loader.cfm'; var jsSiteID = 1; var jsSubSiteID = 781; var kurrentPageID = 22061; var gShowKeywords = 0; var gHaveKeywords = 0; var js_userID=0; document.CS_StaticURL = "http://www.nps.gov/"; document.CS_DynamicURL = "http://www.nps.gov/"; Skip to Search Skip to Navigation Skip to Body Skip to Footer Search this park Search nps.gov var isStandard = 1; var hasChildren = 0; Skip Navigation PARK HOME PLAN YOUR VISIT FOR TEACHERS ... Contact Us view map text size: printer friendly QUICKLINKS: Directions Visit the Park Events Centennial Initiative 2016 ... Current Volcano Activity Area Closure Information Temporary road and area closure information: more... Hawai‘i Volcanoes National Park Hawai‘i Volcanoes National Park displays the results of 70 million years of volcanism, migration, and evolution processes that thrust a bare land from the sea and clothed it with unique ecosystems, and a distinct human culture. The park highlights two of the world's most active volcanoes, and offers insights on the birth of the Hawaiian Islands and views of dramatic volcanic landscapes. more...

14. Natural Hazards - Volcanoes The U.S. Geological Survey (USGS) is responsible for monitoring our Nation s 170 active volcanoes (red triangles) for signs of unrest and for issuing timely http://www.usgs.gov/hazards/volcanoes/

@import url("/styles/common.css"); USGS Home Contact USGS Search USGS Natural Hazards Maps, Imagery, and Publications Hazards Newsroom Education ... Back to Natural Hazards Gateway Home The U.S. Geological Survey (USGS) is responsible for monitoring our Nation's 170 active volcanoes (red triangles) for signs of unrest and for issuing timely warnings of hazardous activity to government officials and the public. This responsibility is carried out by scientists at the five volcano observatories operated by the USGS Volcano Hazards Program and also by State and university cooperators. Low-res Natural Hazards - Volcanoes When the violent energy of a volcano is unleashed, the results can be catastrophic. The risks to life, property, and infrastructure are escalating as more and more people live, work, play, and travel in volcanic regions. To help keep communities safe, it is essential to monitor hazardous volcanoes so that the public knows when unrest begins and what hazards can be expected. The USGS has greatly advanced its ability to evaluate volcanic risks and hazards through research and monitoring programs. USGS realtime volcano-monitoring tools collect and transfer large amounts of data from remote volcanoes for analysis and interpretation. Volcano Hazards Program (fact sheet) (fact sheet) USGS Volcano Related News (USGS Newsroom) Notice of Product Availability: Mount St. Helens Action Footage Available

15. Alaska Volcano Observatory Organization using federal, state, and university resources to monitor and study Alaska s hazardous volcanoes, to predict and record eruptive activity, http://www.avo.alaska.edu/

Site Map FAQ Alaska Volcano Observatory Home About AVO Current Volcanic Activity Volcano Information ... Searches You are here: Home Outside Links View Volcano USGS Volcano Hazards Program VolcanoWorld Global Volcanism Program Kamchatka Volcanoes ... Consortium of US Volcano Observatories Weather National Weather Service, Alaska Region Alaska Forecast Map Aviation Alaskan Region FAA Anchorage VAAC Alaska Aviation Weather Unit Other Alaska Division of Homeland Security and Emergency Management West Coast and Alaska Tsunami Warning Center Alaska Earthquake Information Center Alaska Community Database Online ... Alaska Science Center Other US Observatories Cascades Hawaii Long Valley Yellowstone Member Agencies The Alaska Volcano Observatory (AVO) is a joint program of the United States Geological Survey (USGS), the Geophysical Institute of the University of Alaska Fairbanks (UAFGI), and the State of Alaska Division of Geological and Geophysical Surveys (ADGGS). Restless Volcanoes Click for higher resolution image. Cleveland volcano: Aviation Color Code - YELLOW Volcano Alert Level - ADVISORY Full details on this episode of unrest Last Activity Report View Alaska Volcano Observatory Current Status Report Wednesday, May 28, 2008 10:13 AM

16. American Red Cross Explosive volcanoes blast hot solid and molten rock fragments and gases into the air. As a result, ashflows can occur on all sides of a volcano and ash can http://www.redcross.org/services/disaster/0,1082,0_593_,00.html

For News, Safety Tips and Disaster Updates Blackouts Chemical Emergencies Drought Earthquakes ... Winter Storms Find Your Local Red Cross Enter Zip Code Here: Or Browse Through A List of Chapters! Circle of Humanitarians Look Who's Helping ... Disaster Services Volcano (PDF File) Explosive volcanoes blast hot solid and molten rock fragments and gases into the air. As a result, ashflows can occur on all sides of a volcano and ash can fall hundreds of miles downwind. Dangerous mudflows and floods can occur in valleys leading away from volcanoes. If you live near a known volcano, active or dormant, be prepared to follow instructions from your local emergency officials. Before: Learn about your community warning systems and emergency plans. Be prepared for the hazards that can accompany volcanoes: Mudflows and flash floods Landslides and rockfalls Earthquakes Ashfall and acid rain Tsunamis Make evacuation plans. If you live in a known volcanic hazard area, plan a route out and have a backup route in mind. Develop an emergency communication plan. In case family members are separated from one another during a volcanic eruption (a real possibility during the day when adults are at work and children are at school), have a plan for getting back together. Ask an out-of-state relative or friend to serve as the “family contact,” because after a disaster, it’s often easier to call long distance. Make sure everyone knows the name, address, and phone number of the contact person. Have disaster supplies on hand: Flashlight and extra batteries

17. Volcano, Volcanoes, Volcano Information At LiveScience.com LiveScience.com explains volcano, volcanoes, volcano information, volcano world and volcano eruptions. http://www.livescience.com/volcanoes/

All About Volcanoes A volcano is simply defined as an opening in the earth's surface crust through which molten lava, ash, and gases are ejected. Volcanoes occur most often on or near crustal plates or boundaries, although certain volcanoes known as hotspot volcanoes can occur virtually anywhere. Today’s existing terrestrial volcanoes are believed to have formed when molten rock or magma welled up in the Earth’s interior pushed its way to the surface causing the volcanoes’ initial eruptions. Volcanoes all generally fit into one of six different categories: Shield volcanoes, Cinder volcanoes, Stratovolcanoes, Submarine volcanoes, Subglacial volcanoes, and the most powerful volcano of all, the Supervolcano . A Supervolcanic eruption can be catastrophic to entire regions both climatically and geologically. Individual volcanoes are typically described as being either active (currently erupting), dormant (not currently active) or extinct (not expected to ever erupt again). Some of the most famous volcanic eruptions around the world include the Yellowstone Caldera in Yellowstone National Park, Lake Toba in Sumatra, Indonesia, and the devastating eruption of Mt. St. Helens in southwest Washington State in 1980.

18. Volcanoes, Earthquakes, Hurricanes, Tornadoes—Forces Of Nature: Science, Maps, Explore the science behind volcanoes and earthquakes, and then make your own! Delve into the forces of nature3 D models, photos, case studies, videos, http://www.nationalgeographic.com/forcesofnature/interactive/index.html

Your browser does not support the interactive portion of this site because it does not allow either javascript or frames. Go to the home page Your browser does not support the interactive portion of this site because it does not allow either javascript or frames. Go to the home page

19. Volcano Field Trip volcanoes can be exciting and dangerous. They are also educational since they tell us a lot about the earth and even other planets. http://www.field-guides.com/sci/volcano/

Volcano Field Trip Trailhead Teacher's Resources Start Field Trip Volcanoes can be exciting and dangerous. They are also educational since they tell us a lot about the earth and even other planets. The inside of the Earth is very hot. Sometimes, this heat melts through the rock of the earth's crust, sending hot liquid rock (called magma) and gases onto the Earth's surface. A buildup of lava and ash around the area of an eruption becomes a volcano. Volcanoes can erupt for a very brief time or they can erupt many times over millions of years. Sometimes they sleep for long periods and people think they are finished, but they aren't. Mount St Helens was one of these sleeping volcanoes and it surprised everyone when it became active in 1980, causing a lot of destruction and loss of life. Concepts How are volcanoes formed? How can they create islands?

20. Elementary Themes: Volcanoes This site lists web pages containing information on volcanoes. http://www.stemnet.nf.ca/CITE/volcano.htm

Elementary Themes Volcanoes Featured in April /03 General Resources Plate Tectonics Volcanoes Around the World Formation ... Virtual Tour of a Volcano General Resources USGS: Volcanoes Volcanoes destroy and volcanoes create. The catastrophic eruption of Mount St. Helens on May 18, 1980, made clear the awesome destructive power of a volcano. Yet, over a time span longer than human memory and record, volcanoes have played a key role in forming and modifying the planet upon which we live. More than 80 percent of the Earth's surfaceabove and below sea levelis of volcanic origin. Learner.org: Volcanoes Today, there are many active volcanoes worldwide. Is there anything we can do to predict how and when they will erupt? As the world's population grows, more and more people are living in potentially dangerous volcanic areas. Volcanic eruptions continueas they have throughout historyposing ever-greater threats to life and property. How Volcanoes Work This website is an educational resource that describes the science behind volcanoes and volcanic processes. The site is sponsored by NASA under the auspices of Project ALERT (Augmented Learning Environment and Renewable Teaching). It is intended for the education of pre-service teachers, in-service teachers, and university students of geology and volcanology. Each section in the menu builds upon previous sections. FEMA's Volcano Page A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. Gases and rock shoot up through the opening and spill over or fill the air with lava fragments.

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