Popocatépetl Volcano Volcanic Ash Advisory: VA NOT OBSD

Sun, 18 Jul 2021, 10:30
10:30 AM | BY: VN
Volcanic Ash Advisory Center Washington (VAAC) issued the following report:

FVXX24 at 10:21 UTC, 18/07/21 from KNES
VA ADVISORY
DTG: 20210718/1019Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2021/479

INFO SOURCE: GOES-16.

ERUPTION DETAILS: VA NOT OBSD

OBS VA DTG: 18/1001Z

OBS VA CLD: VA NOT IDENTIFIABLE FM STLT DATA

FCST VA CLD +6HR: 18/1600Z NO VA EXP

FCST VA CLD +12HR: 18/2200Z NO VA EXP

FCST VA CLD +18HR: 19/0400Z NO VA EXP

RMK: VA EM NOT SEEN ON CLEAR STLT IMAGERY. VA CLD
FM EARLIER EM DISPTD. ...KIM

NXT ADVISORY: NO FURTHER ADVISORIES

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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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