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Popocatépetl Volcano Volcanic Ash Advisory: NEW VA CLD OBSD to 28000 ft (8500 m)

Thu, 18 Jul 2019, 05:45 | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 28000 ft (8500 m) altitude or flight level 280 .
The full report is as follows:

FVXX20 at 05:38 UTC, 18/07/19 from KNES
VA ADVISORY
DTG: 20190718/0536Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2019/568

INFO SOURCE: GOES-EAST. MEXICO CITY MWO. NWP
MODELS. VOLCAT.

ERUPTION DETAILS: NEW VA CLD OBSD

OBS VA DTG: 18/0521Z

OBS VA CLD: SFC/FL280 N1916 W09852 - N1911 W09846
- N1903 W09850 - N1904 W09859 - N1916 W09852 MOV
NW 10-15KT

FCST VA CLD +6HR: 18/1130Z SFC/FL280 NO ASH EXP

FCST VA CLD +12HR: 18/1730Z NO ASH EXP

FCST VA CLD +18HR: 18/2330Z NO ASH EXP

RMK: DISCRETE VA CLD SEEN IN STLT IMAGERY MOV NW
APPROX 20 NM AWAY FM SUMMIT. VO RPRTS VA AT
FL280. ...KIM

NXT ADVISORY: WILL BE ISSUED BY 20190718/1130Z

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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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