Popocatepetl volcano news & eruption update

Popocatépetl volcano (Central Mexico) activity update

Mon, 4 Mar 2013, 16:41
16:41 PM | BY: T
Ash emission from Popocatepétl yesterday morning
Ash emission from Popocatepétl yesterday morning
The volcano was producing a constant plume of steam and gas drifting to the southeast, interrupted by a few small to moderately sized ash explosions such as the attached image from yesterday morning.
Glow remains visible at the crater at night.

Previous news

Fri, 1 Mar 2013, 16:55
SO2 plume from Popocatépetl (NOAA)
While the rate of gas-steam(-ash) emissions remains low, the intensity of some of them and overall degassing activity have increased. A strong SO2 plume and some emission tremor are visible on current satellite and seismic data. ... Read all
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Background:

Volcán Popocatépetl, whose name is the Aztec word for smoking mountain, towers to 5426 m 70 km SE of Mexico City to form North America's 2nd-highest volcano.  The glacier-clad stratovolcano contains a steep-walled, 250-450 m deep crater.  The generally symmetrical volcano is modified by the sharp-peaked Ventorrillo on the NW, a remnant of an earlier volcano. 
At least three previous major cones were destroyed by gravitational failure during the Pleistocene, producing massive debris-avalanche deposits covering broad areas south of the volcano.  The modern volcano was constructed to the south of the late-Pleistocene to Holocene El Fraile cone.  Three major plinian eruptions, the most recent of which took place about 800 AD, have occurred from Popocatépetl since the mid Holocene, accompanied by pyroclastic flows and voluminous lahars that swept basins below the volcano.  Frequent historical eruptions, first recorded in Aztec codices, have occurred since precolumbian time.


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Source: GVP, Smithsonian Institution - Popocatepetl information


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