Popocatepetl volcano news & eruption update

Вулкан Popocatépetl: Консультативный центр по вулканическому пеплу: VA EMS CONTINUE

Вс, 16 фев 2020, 09:45
09:45 AM | ПЇЅПЇЅПЇЅПЇЅПЇЅ: VN
Эруптивная активность продолжается. Консультативный центр по вулканическому пеплу (VAAC) в Washington предупредил о шлейфе вулканического пепла, который поднялся на высоту 20000 футов (6100 m).
Полный отчет выглядит следующим образом:

FVXX20 at 09:30 UTC, 16/02/20 from KNES
VA ADVISORY
DTG: 20200216/0928Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2020/148

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

ERUPTION DETAILS: VA EMS CONTINUE

OBS VA DTG: 16/0921Z

OBS VA CLD: SFC/FL200 N1925 W09902 - N1903 W09837
- N1859 W09838 - N1909 W09912 - N1925 W09902 MOV
NW 5-10KT

FCST VA CLD +6HR: 16/1530Z SFC/FL200 N1924 W09902
- N1904 W09837 - N1900 W09838 - N1910 W09911 -
N1924 W09902

FCST VA CLD +12HR: 16/2130Z NO ASH EXP

FCST VA CLD +18HR: 17/0330Z NO ASH EXP

RMK: LGHT VA EM SEEN ON STLT IMAGERY MOV NW FM
SUMMIT. VA HEIGHT AND FRCST BASED ON IMAGERY AND
MODEL GUIDANCE, ...KIM

NXT ADVISORY: WILL BE ISSUED BY 20200216/1530Z

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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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