Popocatepetl volcano news & eruption update

Popocatépetl volcano Volcanic Ash Advisory: DISCRETE VA EM.

Sun, 9 Dec 2018, 09:30
09:30 AM |
Volcanic Ash Advisory Center Washington (VAAC) issued the following report:

FVXX23 at 09:15 UTC, 09/12/18 from KNES
VA ADVISORY
DTG: 20181209/0913Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL
341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426
M]

ADVISORY NR: 2018/557

INFO SOURCE: GOES-EAST. NWP MODELS. CIMSS
VOLCAT.

ERUPTION DETAILS: DISCRETE VA EM.

OBS VA DTG: 09/0902Z

OBS VA
CLD: SFC/FL250 N1921 W09816 - N1913 W09811
- N1858 W09811 - N1855
W09819 - N1858 W09839 -
N1903 W09839 - N1921 W09816 MOV E 15KT

FCST VA
CLD +6HR: 09/1500Z SFC/FL250 N1926 W09754
- N1919 W09738 - N1853
W09737 - N1846 W09751 -
N1858 W09837 - N1902 W09839 - N1926 W09754


FCST VA CLD +12HR: 09/2100Z SFC/FL250 N1934
W09729 - N1918 W09713 -
N1853 W09712 - N1842
W09729 - N1859 W09803 - N1918 W09804 -
N1934
W09729

FCST VA CLD +18HR: 10/0300Z SFC/FL250 N1937
W09643 - N1922
W09630 - N1851 W09631 - N1841
W09647 - N1858 W09730 - N1919 W09732 -
N1937
W09643

RMK: NEW VA EM OBS IN STLT IMAGERY MOV 15 KTS E
FM SUMMIT
AT FL250. VA REMAINS ATTACHED AND EXTDS
MORE THAN 30 NMI E. NWP MODELS
AGREE WITH
TRANSPORT. ...BOLL

NXT ADVISORY: WILL BE ISSUED BY
20181209/1515Z

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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.


---


Source: GVP, Smithsonian Institution - Popocatepetl information


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