Popocatepetl volcano news & eruption update

Popocatépetl volcano (Mexico) activity update: low activity, new photos of the growing lava dome

Mon, 17 Feb 2014, 14:32
14:32 PM | BY: TOMPFEIFFER
Aerial view of Popocatépetl's summit crater (image: CENAPRED)
Aerial view of Popocatépetl's summit crater (image: CENAPRED)
The lava dome inside Popo's inner summit crater (CENAPRED)
The lava dome inside Popo's inner summit crater (CENAPRED)
No significant changes in the currently low activity of the volcano have occurred recently. The volcano produces a small number (less than 10 usually) weak explosive emissions of steam, gas and sometimes ash on a daily basis, and magma continues to rise slowly to the summit where a lava dome forms. This is evidenced by glow at night, and was confirmed during a recent overfly with the support of the Mexican Navy.
On the images obtained, one could see that a dome is slowly growing within the inner crater, partially filling it. Its diameter was estimated to about 200 m and it is about 50 meters below the average level of the floor of the main crater.
The alert level of the volcano remains unchanged at Yellow phase 2.

Previous news

Sun, 2 Feb 2014, 11:35
Glow from Popocatépetl's crater at night
Activity at the volcano has remained unchanged and weak. Only few (less than 10 per day) and generally weak emissions of steam, gas and minor amounts of ash have been recorded. Weak glow is visible at the crater at night. ... 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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