Popocatepetl volcano news & eruption update
Popocatépetl Volcano Volcanic Ash Advisory: VA EM OBSD to 19000 ft (5800 m)
The full report is as follows:
FVXX22 at 12:58 UTC, 21/10/20 from KNES
VA ADVISORY
DTG: 20201021/1255Z
VAAC: WASHINGTON
VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837
AREA: MEXICO
SUMMIT ELEV: 17802 FT [5426 M]
ADVISORY NR: 2020/926
INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS.
ERUPTION DETAILS: VA EM OBSD
OBS VA DTG: 21/1246Z
OBS VA CLD: SFC/FL190 N1902 W09838 - N1858 W09838
- N1835 W09903 - N1846 W09916 - N1902 W09838 MOV
SW 5KT
FCST VA CLD +6HR: 21/1900Z SFC/FL190 N1906 W09856
- N1901 W09837 - N1859 W09838 - N1853 W09856 -
N1906 W09856
FCST VA CLD +12HR: 22/0100Z NO VA EXP
FCST VA CLD +18HR: 22/0700Z NO VA EXP
RMK: CONS VA EM SEEN ON STLT IMAGERY EXTENDING
APPROX 40 NM SW FM SUMMIT. VA HEIGHT AND FRCST
BASED ON IMAGERY AND MODEL GUIDANCE. WINDS EXPCD
TO VEER MOR W THRU FRCST PERIOD. ...KIM
NXT ADVISORY: WILL BE ISSUED BY 20201021/1900Z
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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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