Archive for the ‘Volcano’ Category
The Popocatépetl volcano erupted with a billowing cloud of dark ash billowing into the morning sky Friday and ever since there have been 129 exaltations of ash, three explosions and one measurable earthquake.
Monday, November 28th, 201611/13-14/1985, The Nevado del Ruiz volcano erupts in Colombia, killing over 20,000 people as nearby towns are buried in mud, ice and lava.
Monday, November 14th, 2016Indonesian authorities have evacuated some 1,100 tourists after Mount Barujari on Lombok island erupted on Tuesday
Wednesday, September 28th, 2016“….The 3,726 metre (12,224ft) high volcano sits within the Mount Rinjani caldera. Rinjani is among 130 active volcanoes in Indonesia – an archipelago prone to volcanic eruptions and earthquakes as it sits on the Pacific “Ring of Fire”…..”
https://www.youtube.com/watch?v=W-gtsESOBLA
Eruption of Mount Rinjani, Indonesia
November 7, 2015
Alaska’s Pavlof Volcano, that erupted in March, sending an ash cloud as high as 37,000 feet into the atmosphere, has a heightened level of activity once again.
Tuesday, July 5th, 2016
Mount Sinabung: Death toll up to 7
Monday, May 23rd, 2016https://www.youtube.com/watch?v=2eSNzhJorto
Mount Sinabung Volcano Erupts
Sunday, May 22nd, 2016** In western Indonesia
** Has claimed lives of six people
** Three others are in critical condition
** Sending ashes as high as 2 miles into the sky Saturday.
It’s alive! In the past eight weeks, more than 130 small earthquakes have trembled beneath the surface of Mount St. Helens.
Saturday, May 7th, 2016
Location: Washington, Skamania County
Latitude: 46.2° N
Longitude: 122.18° W
Elevation: 2,549 (m) 8,363 (f)
Volcano type: Stratovolcano
Composition: Basalt to Rhyodacite
Most recent eruption: 1980, 2004-2008
Nearby towns: Castle Rock, WA; Olympia, WA; Vancouver, WA; Yakima, WA; Portland, OR
Threat Potential: High *
Prior to 1980, Mount St. Helens had the shape of a conical, youthful volcano sometimes referred to as the Mount Fuji of America. During the 1980 eruption the upper 400 m (1,300 ft) of the summit was removed by a huge debris avalanche, leaving a 2 x 3.5 km (1.2 x 2.2 mi) horseshoe-shaped crater now partially filled by a lava dome and a glacier. It is primarily an explosive dacite volcano with a complex magmatic system.
Mount St. Helens was formed during four eruptive stages beginning about 275,000 years ago and has been the most active volcano in the Cascade Range during the Holocene. Prior to about 12,800 years ago, tephra, lava domes, and pyroclastic flows were erupted, forming the older St. Helens edifice, but a few lava flows extended beyond the base of the volcano. The bulk of the modern edifice (above the 1980 crater floor) was constructed during the last 3,000 years, when the volcano erupted a wide variety of products from summit and flank vents. Historical eruptions in the 19th century originated from the Goat Rocks area on the north flank, and were witnessed by early settlers. New unpublished data on the timing for Mount St. Helens eruptive activity have been analyzed, which improves some of the eruption dates cited in published literature. This website contains the most up to date information.
