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Вулкан Popocatépetl: Консультативный центр по вулканическому пеплу: REMNANT VA

Чт, 26 мар 2020, 05:00 05:00 AM | АВТОР: 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 04:44 UTC, 26/03/20 from KNES
VA ADVISORY
DTG: 20200326/0443Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2020/326

INFO SOURCE: GOES-EAST. VOLCAT.

ERUPTION DETAILS: REMNANT VA

OBS VA DTG: 26/0436Z

OBS VA CLD: SFC/FL200 N1914 W09913 - N1908 W09855
- N1859 W09856 - N1902 W09917 - N1914 W09913 MOV
W 15-20KT

FCST VA CLD +6HR: 26/1030Z NO ASH EXP

FCST VA CLD +12HR: 26/1630Z NO ASH EXP

FCST VA CLD +18HR: 26/2230Z NO ASH EXP

RMK: REMNANT VA FM EARLIER ERUPTION IS OBS IN
STLT LOCATED APPROX 15NMI W FM THE SUMMIT. THE
ASH IS FCSTD TO DISP BY T+06HRS. ...RAMIREZ

NXT ADVISORY: WILL BE ISSUED BY 20200326/1045Z

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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
Popocatépetl вулкан
Стратовулкан 5426 m / 17,802 ft
Central Mexico, 19.02°N / -98.62°W
Текущее состояние: извергающийся (4 из 5) Popocatépetl Вулкан-извержения:
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
Типичный извержения стиль
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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