Popocatepetl volcano spews blasts of ash into sky south of Mexico City
MEXICO CITY — The Popocatepetl (po-po-ka-TEH-peh-tel) volcano south of Mexico City is shooting blasts of ash from its crater.
Mexico's national disaster prevention agency says the volcano has spewed ash more than a half mile (a kilometer) into the sky four times Tuesday. It says there is a possibility ash could fall onto Mexico City overnight.
The agency is urging people to stay at least 7 miles (12 kilometers) from the crater.
The 17,886-foot (5,450-meter) volcano is about 40 miles (65 kilometers) southeast of the capital.
##########################################################################################
Mount Etna In Sicily Puts On A Natural Fireworks Show
By Mark Dunphy - Tue Aug 30, 9:37 pm
The Mount Etna volcano in Sicily, Italy, erupted for the twelfth time this year on Monday.
Throughout 2011, activity at Sicily's Mount Etna has been characterised by paroxysms: short, violent bursts of activity. Each event has included volcanic tremors, ash emissions, and lava flows centered around the New Southeast Crater, just below the summit.
According to the Osservatorio Vulcanologico dell'Etna: "On the early morning of 29 August 2011, the 12th paroxysmal eruptive episode of this year occurred at the New Southeast Crater, almost 8 days after its predecessor. This event generated tall lava fountains and an eruption column that caused ash falls in the southeast sector of the volcano, as well as various lava flows down the western slope of the Valle del Bove.
"During this paroxysm, the southeastern flank of the pyroclastic cone of the New Southeast Crater fractured, with the opening of several eruptive vents down to the base of the cone, which produced lava fountains and a broad lava flow that advanced to the Valle del Bove, too. The acme of this episode lasted less than 40 minutes."
Mount Etna is one of the most active volcanoes in the world and is in an almost constant state of activity. On 12-13 January 2011 lava fountaining occurred from the vent on the east flank of Etna's Southeast Crater cone, lasting more than 1.5 hours. Italian Authorities were forced to temporarily close airports for a couple of hours while the ash cloud cleared.
video available at source########################################################################################
Russia: Shiveluch Volcano's ash disrupts air traffic
Shiveluch Volcano
A column of smoke and ash from the volcano Shiveluch, located in the centre of Russia's rugged Kamchatka peninsula, reached an altitude of 8.6km on Monday and posed a threat to aircraft, officials at Russia's National Geophysical Service (RNES) told Interfax.
The ash discharges were increasing in intensity and volume over the weekend. The RNES is now rating Shiveluch at level orange, one step below its most dangerous rating.
The ash column was the most significant in a month and was accompanied by rock slides and an increase in the size of a rock dome known to contain lava, the report said.
Officials said the volcano did not currently threaten human life or property, in part because the closest village to Shiveluch was about 45km away.
Shiveluch is one of the Pacific region's most active volcanoes. Its last catastrophic eruption was in 1956. After several decades of relative dormancy the volcano started showing signs of growing activity in 2006.
Shiveluch's increasing ash emissions are a sign of rising pressure. However, it is impossible to predict when the volcano might erupt, the RNES spokesperson said.
Containing more than 150 volcanoes, Russia's Kamchatka peninsula is one of the world's most active seismic zones.
source
--
Roxxfoxx~~Adventures in Geology
Penguin News Today
Penguinology: The Science of Penguins
Gentoo Penguins of Gars O'Higgins Station, Antarctica
Canis lupus 101
Dances with Werewolve
Through Golden Eyes
__._,_.___
No comments:
Post a Comment