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Popocatépetl Volcano: sporadic emissions of volcanic ash

Mon, 31 Aug 2020, 18:45 | BY: VN
Mild explosive activity continues from the volcano. The Volcanic Ash Advisory Center (VAAC) Washington reported intermittent emissions of volcanic ash plumes.
The full report is as follows: INTMT VA EMS..

FVXX23 at 18:43 UTC, 31/08/20 from KNES
VA ADVISORY
DTG: 20200831/1841Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2020/806

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

ERUPTION DETAILS: INTMT VA EMS.

OBS VA DTG: 31/1821Z

OBS VA CLD: SFC/FL190 N1905 W09849 - N1901 W09837
- N1900 W09837 - N1900 W09850 - N1905 W09849 MOV
W 5-10KT

FCST VA CLD +6HR: 01/0030Z SFC/FL190 N1906 W09854
- N1902 W09837 - N1900 W09837 - N1901 W09855 -
N1906 W09854

FCST VA CLD +12HR: 01/0630Z NO VA EXP

FCST VA CLD +18HR: 01/1230Z NO VA EXP

RMK: VA NOT OBSD IN G16 STLT IMAGERY. HWVR, VA
CLEARLY OBSD IN WEBCAM. FL ESTD FM WEBCAM. NWP
MDLS FCST VA TO MOV W THRU T+6HRS. ...HOSLEY

NXT ADVISORY: WILL BE ISSUED BY 20200901/0045Z

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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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