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Popocatépetl volcano Volcanic Ash Advisory: PSBL VA EM

Di, 11. Jul 2017, 16:00
16:00 PM |
Volcanic Ash Advisory Center Washington (VAAC) issued the following report:

FVXX23 at 15:46 UTC, 11/07/17 from KNES
VA ADVISORY
DTG: 20170711/1544Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL
341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426
M]

ADVISORY NR: 2017/061

INFO SOURCE: GOES-EAST. NWP MODELS. VOLCANO
WEB
CAMERA.

ERUPTION DETAILS: PSBL VA EM

OBS VA DTG: 11/1515Z

OBS VA
CLD: VA NOT IDENTIFIABLE FROM SATELLITE
DATA WINDS SFC/FL220
180/10KT

FCST VA CLD +6HR: 11/2130Z

FCST VA CLD +12HR: 12/0330Z

FCST
VA CLD +18HR: 12/0930Z

RMK: ERUPTION OBS ON WEBCAM. PSBL VA EM
WITHIN
PLUME. PLUME HOVERING NEAR AND JUST N OF SUMMIT.
VA EM NOT SEEN
ON STLT DUE TO WX CLDS. ...GAETANO

NXT ADVISORY: WILL BE ISSUED BY
20170711/2145Z

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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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