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Mount St. Helens Disintegrates in Enormous Landslide
 
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Is any distance away from a volcano safe? Find out when an eruption causes one of the largest landslides in recorded history on Mount St. Helens. Unbelievable footage is studied and explained. (from Discovery Channel's "Raging Planet")
Views: 4700067 Storm
Mount St. Helens: May 18, 1980
 
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For more information visit: http://gallery.usgs.gov/videos/234 USGS scientists recount their experiences before, during and after the May 18, 1980 eruption of Mount St. Helens. Loss of their colleague David A. Johnston and 56 others in the eruption cast a pall over one of the most dramatic geologic moments in American history.
Views: 316814 USGS
Time-lapse images of Mount St. Helens dome growth 2004-2008
 
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http://gallery.usgs.gov/videos/628 The rapid onset of unrest at Mount St. Helens on September 23, 2004 initiated an uninterrupted lava-dome-building eruption that continued until 2008. The initial phase produced rapid growth of a lava dome as magma pushed upward. As shown in the video, an initial succession of lava spines, two recumbent and one steeply sloping, grew to nearly 500 m in length before disintegrating into mounds of rubble. The trajectory of lava extrusion was affected by the geometry of the crater, particularly the proximity of the vent to the south crater wall, and by the growing volume of erupted material.
Views: 605323 USGS
Mount. St. Helen's
 
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A short video helpful for GCSE revision or if you're just interested in the facts about the Mount St. Helen's eruption in 1980. Featuring causes, effects and responses and many photos
Views: 1906 Rachel Ejoy
1980 eruption of Mount St. Helens
 
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In 1980, a major volcanic eruption occurred at Mount St. Helens, a volcano located in state of Washington, in the United States. The eruption (which was a level 5 event) was the only significant one to occur in the contiguous 48 U.S. states since the 1915 eruption of Lassen Peak in California. The eruption was preceded by a two-month series of earthquakes and steam-venting episodes, caused by an injection of magma at shallow depth below the volcano that created a huge bulge and a fracture system on the mountain's north slope. Prior to the eruption, USGS scientists convinced local authorities to close Mount St. Helens to the general public and to maintain the closure in spite of local pressure to re-open it; their work saved thousands of lives. An earthquake at 8:32:17 a.m. PDT (UTC−7) on Sunday, May 18, 1980, caused the entire weakened north face to slide away, suddenly exposing the partly molten, gas- and steam-rich rock in the volcano to lower pressure. The rock responded by exploding a hot mix of lava and pulverized older rock toward Spirit Lake so fast that it overtook the avalanching north face. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 166 Audiopedia
dome-shaped volcano & shield volcano
 
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with ice cream
Views: 148 Hyeon A shin
Intrusive Landforms
 
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A video by Gretchen Gebhardt for science students at Columbia Gorge Community College
Cryptodomes by Blind Labyrinth
 
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Quasi-impressionist response to a natural phenomenon. We suggest closing your eyes and just letting it take you where it goes.
Views: 41 Blind Labyrinth
America's Dangerous Volcanoes
 
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It has been thirty years since Mount Saint Helens reawakened, but what other volcanoes pose the threat of lava flows, toxic gases, volcanic ash, and mudflows? Bill Burton of the U.S. Geological Survey Volcano Hazards Program discusses the efforts being made by the federal government to monitor volcanoes in the Pacific Northwest, Hawaii, and Yellowstone for eruptive activity.
TOP 10 MOST DANGEROUS ACTIVE VOLCANOES AROUND WORLD
 
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Top 10 Most Dangerous Active Volcanoes Around World Subscribe to my channel: https://www.youtube.com/channel/UCn9HCL75BmxsK4prGx-Pjxg For copyright matters please contact us at: [email protected] Description: The Yellowstone Caldera is the volcanic caldera and supervolcano located in Yellowstone National Park in the United States, sometimes referred to as the Yellowstone Supervolcano. Mount Vesuvius is a somma-stratovolcano located on the Gulf of Naples in Campania, Italy, about 9 km (5.6 mi) east of Naples and a short distance from the shore. Sakurajima is an active composite volcano (stratovolcano) and a former island in Kagoshima Prefecture in Kyushu, Japan. Galeras Volcano is an Andean stratovolcano in the Colombian department of Nariño, near the departmental capital Pasto. Its summit rises 4,276 metres (14,029 ft) above sea level. It has erupted frequently since the Spanish conquest, with its first historical eruption being recorded on December 7, 1580. A 1993 eruption killed nine people, including six scientists who had descended into the volcano's crater to sample gases and take gravity measurements in an attempt to be able to predict future eruptions. It is currently the most active volcano in Colombia. Mount Merapi, Gunung Merapi, is an active stratovolcano located on the border between Central Java and Yogyakarta, Indonesia. It is the most active volcano in Indonesia and has erupted regularly since 1548. It is located approximately 28 kilometres (17 mi) north of Yogyakarta city which has a population of 2.4 million, and thousands of people live on the flanks of the volcano, with villages as high as 1,700 metres (5,600 ft) above sea level. Mount Nyiragongo is an active stratovolcano with an elevation of 3,470 metres in the Virunga Mountains associated with the Albertine Rift. It is located inside Virunga National Park, in the Democratic Republic of the Congo, about 20 km north of the town of Goma and Lake Kivu and just west of the border with Rwanda. The main crater is about two kilometres wide and usually contains a lava lake. The crater presently has two distinct cooled lava benches within the crater walls - one at about 3,175 m and a lower one at about 2,975 m. Nyiragongo's lava lake has at times been the most voluminous known lava lake in recent history. The depth of the lava lake varies considerably. A maximum elevation of the lava lake was recorded at about 3,250 m prior to the January 1977 eruption - a lake depth of about 600 m. Ulawun is a basaltic and andesitic stratovolcano situated on the island of New Britain, Papua New Guinea, about 130 km south-west of Rabaul. It is the highest mountain in the Bismarck Archipelago at 2,334 metres (7,657 ft), and one of the most active volcanoes in Papua New Guinea. The first recorded eruption of Ulawun was by William Dampier in 1700; there have been 22 recorded eruptions since the 18th century. Several thousand people live near the volcano. Taal Volcano is a complex volcano located on the island of Luzon in the Philippines. It is the second most active volcano in the Philippines with 33 historical eruptions. All of these eruptions are concentrated on Volcano Island, an island near the middle of Taal Lake. The lake partially fills Taal Caldera, which was formed by prehistoric eruptions between 140,000 and 5,380 BP. Viewed from Tagaytay Ridge, Taal Volcano and Lake presents one of the most picturesque and attractive views in the Philippines. It is located about 50 kilometres (31 miles) south of the capital of the country, the city of Manila. Mauna Loa is one of five volcanoes that form the Island of Hawaii in the U.S. state of Hawaiʻi in the Pacific Ocean. The largest subaerial volcano in both mass and volume, Mauna Loa has historically been considered the largest volcano on Earth. It is an active shield volcano with relatively gentle slopes, with a volume estimated at approximately 18,000 cubic miles (75,000 km3), although its peak is about 120 feet (37 m) lower than that of its neighbor, Mauna Kea. Lava eruptions from Mauna Loa are silica-poor and very fluid, and they tend to be non-explosive. Featuring: 10. Mauna Loa, Hawaii, USA 9. Taal Volcano, Philippines 8. Ulawun, Papua New Guinea 7. Mt. Nyiragongo, Democratic Republic of Congo 6. Mt. Merapi, Indonesia 5. Galeras, Colombia 4. Sakurajima, Japan 3. Popocatépetl, Mexico 2. Mt. Vesuvius, Italy 1. Yellowstone Caldera, USA
Views: 639 CarpeIndicium
Fissure Vents - Shield Volcanoes - Lava Domes - Cryptodomes - Volcanic Cones 2015
 
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SUBSCRIBE, LIKE, SHARE AND COMMENT #turtledove #charliemarie #ohmygoodness #papi #itsgonnaexplode #volcano #icant #seriously I can’t wait to do science projects with her. Lol. So much fun. #science by four_seven_photography /
Views: 106 Lesia Burnside
Earthquakes Exploding, Volcanoes Next ? September 29-14
 
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Be on the Ready .... http://www.washingtonpost.com/posteverything/wp/2014/09/29/science-explains-why-volcanoes-are-erupting-all-over-the-place-right-now/
What Is The Cause Of A Volcanic Eruption?
 
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What causes a volcano erupt? Reference. Earth observatory volcanology can human activity affect volcanoes? science what causes eerie volcanic lightning? Live. What causes volcanic eruptions odecearth how do generate tsunamis? International volcano wikipedia. A volcano is essentially an opening or a vent through which this magma and the 6 jan 2016 team of volcanologists led by university liverpool have released perhaps controversial nature study on causes volcanic 17 nov in eruption, super heated from within earth's range natural phenomena examines their cause effect volcanoes erupt because density pressure. As the gas filled magma rises volcanic eruptions occur when builds up beneath earth's crust and forces its way to surface. When a part of the earth's upper mantle or lower crust melts, magma forms. They occur at destructive (compressional) and constructive a volcano begins as melted rock (magma) which rises from deep inside the earth toward surface. The lower density of the magma relative to surrounding rocks causes it rise (like air bubbles in syrup) understanding how volcanoes work and their eruptions can be predicted is essential for well being form when reaches earth's surface, causing lava ash. Others believe a volcanic eruption is sign that mountain upset because although relatively infrequent, violent eruptions represent also impulsive displacement of water caused by explosion, volcano's slope volcano rupture in the crust planetary mass object, such as earth, allows hot lava erupting volcanoes can pose many hazards, not only immediate vicinity. Bbc gcse bitesize key facts. What causes a volcanic eruption? volcanoes to erupt? Worldatlas. Why are there volcanoes? do they erupt? . Below the crust which causes all magma in chamber to come out eruption!. One such hazard cryptodomes are formed when viscous lava is forced upward causing the surface to bulge. What causes a volcano to erupt and how do scientists predict what volcanic eruption? What The telegraph. Natural vents in the crust allow magma passage to 2313 may 2015 a volcanic eruption with lava flowing down side of mountain. Asteroid and volcanic eruptions caused dinosaur extinction. Volcano world what causes volcanoes? Geoscience australia. 20 aug 2015 some people believe volcanic eruptions are caused by fate. What causes a volcano to erupt and how do scientists predict what volcanic eruption? The telegraph. How to trigger a volcanic eruption on purpose 3) what are the causes of eruption? Examine why it's earthquakes and eruptions related? . 1980, spewing lava that melted nearby glaciers, causing a mudslide that a volcano is a part of the earth, formed by rock and the earth itself. The 1980 eruption 4 apr 2012 if you are an evil genius bent on achieving world domination by causing a volcano to erupt command, need read this post 6 jan 2015 volcanic eruptions caused due three major reasons release of has profound influence the earth's landforms is because most and seismic activity eart
Views: 86 Question Force
Shinomedake lava dome and crater from a UAV
 
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I took this video using a DJI Phantom UAV ("Flying camera") at the crater of Shinmoedake volcano, Kyushu, Japan.Visible are the crater rim, the lava dome emplaced during the 2011 eruption of Shinmoedake, and many locations of active degassing. Note: speed of video here is 8 times the real speed.
Views: 223 Einat Lev
Major eruption at Santa Maria volcano
 
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A major eruption at Santiaguito lava dome in Guatemala.... WEBSITE: thewatchers.adorraeli.com Posting credit: by Adonai Article Link: http://thewatchers.adorraeli.com/2013/08/23/major-eruption-at-santa-maria-volcano-guatemala/ Featured image: Observatorio Vulcanologico Santiaguito, INSIVUMEH, August 22, 2013 Photo credit: Bill Rose, 1980 (Michigan Technological University DISCLAIMER: I read for the visually impaired and for mobile device users. If anyone does not wish to listen to the entire broadcast, please use link provided... The content does not necessarily reflect my own personal viewpoints or opinions, it is up to the viewer to decide. I'm unable to verify or confirm the content, so please understand this. FAIR USE STATEMENT: This site may contain copyrighted material the use of which has not always been specifically authorized by the copyright owner. We are making such material available in an effort to advance understanding of environmental, political, human rights, economic, democracy, scientific, and social justice issues, etc. we believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, the material on this site is distributed without profit to those who have expressed a prior interest in receiving the included information for research and educational purposes. For more information go to: http://www.law.cornell.edu/uscode/17/... If you wish to use copyrighted material from this site for purposes of your own that go beyond 'fair use', you must obtain permission from the copyright owner.
Views: 3767 Pinksapphiret2
Godabunga Katla 1999-2017 Earthquakes M0.5+  1080HD TEST
 
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All earthquakes of magnitude 0.5 and above, in the Godabunga cryptodome and Katla volcano. Outlined are some seismic features at Katla, mainly for test purposes to test the drawing functions. Data by Iceland Met Office. Andrej Flis
Views: 273 Andrej Flis
1980 eruption of Mount St. Helens
 
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In 1980, a major volcanic eruption occurred at Mount St. Helens, a volcano located in state of Washington, in the United States. The eruption was the only significant one to occur in the contiguous 48 U.S. states since the 1915 eruption of Lassen Peak in California. The eruption was preceded by a two-month series of earthquakes and steam-venting episodes, caused by an injection of magma at shallow depth below the volcano that created a huge bulge and a fracture system on the mountain's north slope. This video targeted to blind users. Attribution: Article text available under CC-BY-SA Public domain image source in video
Views: 150 encyclopediacc