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Popocatépetl Volcano Volcanic Ash Advisory: NEW VA EMS to 20000 ft (6100 m)

Tue, 18 Aug 2020, 17:15 | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows:

FVXX20 at 17:06 UTC, 18/08/20 from KNES
VA ADVISORY
DTG: 20200818/1703Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2020/784

INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS.
VOLCAT.

ERUPTION DETAILS: NEW VA EMS

OBS VA DTG: 18/1646Z

OBS VA CLD: SFC/FL200 N1904 W09839 - N1901 W09837
- N1901 W09837 - N1901 W09841 - N1904 W09839 MOV
NW 5KT

FCST VA CLD +6HR: 18/2300Z SFC/FL200 N1907 W09841
- N1901 W09836 - N1900 W09836 - N1902 W09844 -
N1907 W09841

FCST VA CLD +12HR: 19/0500Z NO VA EXP

FCST VA CLD +18HR: 19/1100Z NO VA EXP

RMK: VA DETECTED ON STLT AND CLRLY VSBL ON WEBCAM
DRFTNG NW OF SUMMIT. NWP MDL WINDS VRY LGT AND
FCST TO REMAIN THIS WAY. ...KONON

NXT ADVISORY: WILL BE ISSUED BY 20200818/2300Z

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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


Satellite images of Popocatepetl volcano (c)Google Earth View
Satellite images of Popocatepetl volcano (c)Google Earth View
Stratovolcano 5426 m / 17,802 ft
Central Mexico, 19.02°N / -98.62°W
Current status: erupting (4 out of 5) Popocatépetl volcano eruptions:
1345-47, 1354, 1363(?), 1488, 1504, 1509(?), 1512, 1518, 1519-23(?), 1528, 1530, 1539-40, 1542, 1548, 1571, 1580, 1590, 1592-94, 1642, 1663-65, 1666-67, 1697, 1720, 1802-04, 1827(?), 1834(?), 1852(?), 1919-22, 1923-24, 1925-27(?), 1933, 1942-43, 1947, 1994-95, 1996-2003, 2004-ongoing
Typical eruption style
Dominantly explosive, construction of lava domes. Plinian eruptions at intervals of several centuries or few thousands of years, vulcanian and strombolian activity in intermittent phases.
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