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Latest Stratovolcanoes Stories

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2009-07-11 06:45:00

One of the most active volcanoes in the Philippines could be ready to erupt soon, experts at the Philippine Institute of Volcanology and Seismology said on Friday. The institute changed its alert status on Friday for the Mayon mountain from "low-level unrest" to "moderate unrest", citing steam emissions and a ominous glow at the top of the 8,077-foot volcano in the Bicol region. The changed alert status only represents a transition from level 1 to 2 of its 5-level scale, but authorities are...

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2009-07-08 09:40:30

U.S. scientists said they have determined the eruption of Indonesia's Toba volcano about 74,000 years ago triggered a decade-long severe winter. Previous studies suggested the massive eruption produced a 1,000-year episode of ice sheet advance, as well as a volcanic winter, which most likely would have drastically reduced the human population at the time. To investigate additional mechanisms that might have enhanced and extended the effects of the Toba eruption, Rutgers University Professor...

2009-07-06 13:01:13

U.S. geologists are holding a workshop in Pasto, Colombia, to convince area residents of the dangers posed by Galeras, the country's most dangerous volcano. The scientists say that during the past decade, residents of Pasto and neighboring villages have been instructed to evacuate whenever Galeras erupts, but compliance varies and Colombian officials are growing increasingly concerned about the safety of people living near Galeras, located about 430 miles from Bogota. This week's workshop was...

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2009-07-01 08:45:00

Alaska's Mount Redoubt has gradually slowed down in activity since the last eruption three months ago. The Alaska Volcano Observatory said on Tuesday that seismic activity has calmed down and the eruptions may have stopped. The observatory has dropped the alert levels for the areas around the mountain. Several eruptions starting in March interrupted air traffic and covered Anchorage, the Kenai Peninsula and Wasilla with ash. Due to prior events, geologists felt that the eruptions would be...

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2009-06-30 14:10:00

During the past decade, residents of Pasto, Colombia, and neighboring villages near Galeras, Colombia's most dangerous volcano, have been threatened with evacuation, but compliance varies. With each new eruption -- the most recent explosion occurred June 7-9 -- Colombian officials have grown increasingly concerned about the safety of the residents who live within striking distance of Galeras, located 700 km from Bogota.Now, geologists from the University at Buffalo and the Universidad de...

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2009-04-22 14:24:27

The always-active Mount Vesuvius remains to be one of the world's most closely monitored volcanoes, according to experts. Vesuvius lies on the coast of the Bay of Naples, just east of Naples in Italy. It is most widely known for its eruption some 2000 years ago that resulted in the demolition of Pompeii and Herculaneum, claiming the lives of 10,000 to 25,000 people. But even today, sitting some 4,200 feet above the bay, the active volcano represents a threat to nearby cities. "Vesuvius is one...

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2009-04-11 12:25:00

The U.S. government will spend $15.2 million to modernize equipment for monitoring U.S. volcanoes and improving warning systems, according to Interior Secretary Ken Salazar. Salazar said the United States and its territories have 169 active volcanoes, and 54 of them need improved monitoring so scientists can warn the public about explosive disruptions, alert aircraft to ash clouds and inform communities of falling ash, lava and mud flows. One example Salazar cited was the recent activity of...

2009-04-10 14:54:21

Dwight Crandell, a renowned volcanologist in the U.S. Pacific Northwest, has died of a heart attack at the age of 86, his family said. Crandell died Monday at a hospice in Wheat Ridge, Colo., The Seattle Times reported Friday. When Crandell began working in the Puget Sound lowlands in the 1950s, conventional wisdom held the region had been shaped by glaciers, the Seattle Times reported Friday. Crandell and his colleague, Don Mullineaux, soon observed however that the region's deep layers of...

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2009-04-08 09:05:01

Collect first data on lightning during volcano's initial eruption Researchers hit the jackpot in late March, when, for the first time, they began recording data on lightning in a volcanic eruption--right from the start of the eruption. Using a multi-station, ground-based Lightning Mapping Array, the scientists advanced our understanding of electrical activity during a volcanic eruption. Portable Lightning Mapping Arrays are now set up in several areas of the country, and are becoming...

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2009-04-06 13:55:00

Residents of Alaska's largest city near Mount Redoubt are being forced to take strong measures due to the irritation caused by volcanic ash spewing from the volcano's top, the Associated Press reported. Those near the volcano occasionally have to wear air-filtration masks and stretch panty hose over the air intake of cars and trucks. Anchorage resident Brad Sandison, a retired truck driver and avid cyclist who carries a face mask and goggles whenever he rides near the volcano, said he is...


Latest Stratovolcanoes Reference Libraries

Arenal Volcano
2014-08-28 11:31:44

Arenal Volcano, also known as Volcán Arenal, is an active stratovolcano that is located in northwestern Costa Rica. It can be found in Arenal Volcano National Park and was one of Costa Rica’s most active volcanoes until 2010. This volcano has a small crater and several eruptive vents and is the youngest of all active volcanoes in Costa Rica. Arenal Volcano has produced some violent eruptions, including the eruption of 1968, which covered three villages, killed eighty-seven people, and...

2014-08-28 11:14:31

Nevado del Ruiz, also known as La Mesa de Herveo, is an active stratovolcano that is located along the border of the Colombian territories, or departments, of Caldas and Tolima. It reaches an elevation of 17,457 and is shaped like a cone. This volcano is protected within Los Nevados National Natural Park, along with many other volcanoes, and it is a popular tourist destination. Winter activities like skiing are conducted here as well as hiking and fishing. Nevado del Ruiz is part of the...

Galeras
2014-08-28 10:56:28

Galeras is a stratovolcano that is located in Nariño, a Colombian controlled territory. This volcano, which reaches a height of 14,029 feet, is highly active and the most active volcano in Colombia. It primarily contains andesite and holds two calderas that were created by eruptions in the past 560,000 years. Although it is shaped like a horseshoe, eruptions have caused a cone shaped structure to build up in one of the calderas. It was labeled a Decade Volcano in 1991, despite its recent...

Paektu Mountain
2014-08-28 10:46:25

Paektu Mountain, also known as Baektu Mountain or Changbai Mountain, is an active stratovolcano that is located along the border of China and North Korea. At an elevation of 9,003 feet, it is the tallest peak on the Korean Peninsula and in northeastern China, as well as the tallest peak in the Baekdudaegan and Changbai mountain ranges. The volcano is a popular tourist area for many South Koreans and foreign travelers. Paektu Mountain is a cone shaped volcano that holds a large caldera that...

Mount Price
2014-08-19 10:51:33

Mount Price is a stratovolcano that is located in British Columbia, Canada. It is part of the Garibaldi Ranges and reaches an elevation of 6,732 feet, rising above the lake at its western side and the land and other volcanos surrounding it. In the past, this volcano has been known by many names including Red Mountain, Fissile Peak, and Clinker Mountain. It and many other volcanos are protected within the Garibaldi Provincial Park, which also features rich habitats with abundant wildlife....

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tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.