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Вулкан Popocatépetl: Консультативный центр по вулканическому пеплу: CONTG VA EMS.

Вт, 5 окт 2021, 07:30
07:30 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:

FVXX22 at 07:25 UTC, 05/10/21 from KNES
VA ADVISORY
DTG: 20211005/0723Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2021/614

INFO SOURCE: GOES-16. NWP MODELS. VOLCAT.

ERUPTION DETAILS: CONTG VA EMS.

OBS VA DTG: 05/0711Z

OBS VA CLD: SFC/FL200 N1911 W09834 - N1901 W09836
- N1901 W09838 - N1911 W09846 - N1911 W09834 MOV
N 5KT

FCST VA CLD +6HR: 05/1300Z SFC/FL200 N1917 W09831
- N1901 W09836 - N1900 W09837 - N1916 W09851 -
N1917 W09831

FCST VA CLD +12HR: 05/1900Z NO VA EXP

FCST VA CLD +18HR: 06/0100Z NO VA EXP

RMK: VA OBS MOVG SLOWLY N FM SUMMIT. OBS VA FL
ESTD FM NWP MDLS AND VOLCAT ALERT. T+6 HRS FCST
IS LOW CONFIDENCE DUE TO EXPECTED LGT FL WINDS.
...CLARK

NXT ADVISORY: WILL BE ISSUED BY 20211005/1330Z

Предыдущие новости

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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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