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Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term volcano. Part of the Science Video Vocab Series.
(Source: DCMP)
Volcanoes are a part of the earth, and they have intrigued people for hundreds of years. Scientists study the earth's plates in order to understand the complexity of volcanic activity around the world. They also study different types of lava, rocks, and the gases that have dissolved into rocks. In the past, studying volcanic activity was extremely dangerous for scientists. Now they have access to tools, such as global positioning systems and seismometers, to help in predicting volcanic activity.
The United States Geological Survey (USGS) volcano seismologist, Seth Moran, describes how seismology and seismic networks are used to mitigate volcanic hazards.
Through descriptions of actual volcanic and earthquake occurrences, students will discover how these dynamic forces affect the world. This video discusses the nature and causes of earthquakes and volcanoes. Other topics covered include molten rock, magma, lava, cinder cone, shield volcano, composite volcano, caldera, Ring of Fire, seismic waves, seismograph, and Richter scale.
Capulin Volcano National Monument was born of fire and forces continually reshaping its surface. It’s a dramatic landscape of mountains, plains, and sky and provides access to some of nature’s most awe-inspiring work in New Mexico.
Over 3500 years ago, a Minoan Community flourished on Santorini Island. Archeologists have discovered artifacts and frescos this Bronze Age civilizations left behind. Evidence from the archeological dig suggests the culprit of their demise was the Santorini Volcano. Further evidence supports that Santorini’s eruption was more massive and destructive than Vesuvius. Segment of video from Wild Chronicles Series.
Scientists believe that 80 percent of the volcanic eruptions on Earth take place in the ocean. Most of these volcanoes are thousands of feet deep and difficult to find. In May of 2009, scientists captured the deepest ocean eruption ever found. Nearly 4000 feet below the surface of the Pacific Ocean, the West Mata volcano was discovered.
Join vulcanologists as they venture into the heart of Ethiopia's Erta Ale, the oldest live volcano in the world, to ply its secrets of creation. Their mission to sample molten rock from the lava lake requires hauling more than 1000 pounds of gear to the crater, and then rappelling into the active cone. Blistering heat and sulfur stench greet them as they battle this formidable boiling mountain for the sake of science. Segment of video from Wild Chronicles Series.
Volcanic ash is geographically the most widespread of all volcanic hazards. The United States Geological Survey (USGS) geologist Larry Mastin describes how volcanic ash can disrupt lives many thousands of miles from an erupting volcano. The development of ash cloud models and ash cloud disruption to air traffic is highlighted.
Photographers and scientists try to explain their fascination with volcanoes and earthquakes. Focuses not on the geological causes, but on how and why these phenomena are photographed and studied. Uses actual footage and closeups for impact. James Earl Jones narrates.
Photogrammetry is the science of making precise measurements by the use of photography. United States Geological Survey (USGS) geologist Angie Diefenbach describes how she uses a digital camera and computer software to understand the growth rate of lava domes during a volcanic eruption.
USGS (US Geological Survey) technologist Rick LaHusen describes how the development and deployment of instruments plays a crucial role in mitigating volcanic hazards.
Debris flows are hazardous flows of rock, sediment, and water that surge down mountain slopes and into adjacent valleys. Hydrologist Richard Iverson describes the nature of debris-flow research and explains how debris flow experiments are conducted at the United States Geological Survey (USGS) Debris Flow Flume in Oregon.
A volcanologist explores the fiery landscape of Iceland. Segment of video from Wild Chronicles Series.
United States Geological Survey geologist, Angie Diefenbach, describes how she uses GIS (Geographic Information Systems) software to study volcanic erupts and their impacts on society.
Hawaii's Kilauea volcano is one of the best places on Earth to study processes within basaltic volcanoes. Its high eruption frequency, easy access to lavas, and distinct geologic setting far from plate boundaries or continents allow researchers to address fundamental problems related to active volcanoes. Another constant at Kilauea, besides the flowing lava, has been University of Hawaii geologist Mike Garcia. With support from the National Science Foundation, Garcia has been leading studies of Kilauea for a generation, adding to the extensive knowledge base on this volcano. Two of the primary goals are to determine what has triggered Kilauea’s effusive, explosive cycles over the last 2200 years and when long eruptions, such as the current one, will stop. Part of the National Science Foundation Series “Science Nation.”
As shown on the History Channel. Mount Vesuvius is the world's most dangerous volcano, and it threatens three million people. It was responsible for the most famous natural disaster of ancient history, the eruption that destroyed the Roman city of Pompeii. And its most recent blast was caught on film in 1944. Today Vesuvius is the most densely populated volcano in the world. Now recent scientific discoveries show that it is capable of an eruption larger than ever before thought possible and that hidden beneath Vesuvius there is a vast magma chamber of boiling hot rock, ready to come out.
This program from the acclaimed PBS Nature series, "Forces of the Wild," shows how man risks everything by building on earthquake fault lines, farming the slopes of volcanoes, polluting the air and warming the Earth. Like children playing with matches, we have no idea of the consequences of what we are doing. Narrated by James Earl Jones.
As shown on the History Channel. The single longest linear feature on Earth--the "Ring of Fire" circles almost the entire Pacific. It is a ring of active volcanoes from White Island just north of New Zealand, through the South China seas, Japan, Kamchatka, the Aleutians, the Cascades and down through the Andes. Almost 25,000 miles long, it is one of the most awesome sights on Earth.
