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Вулкан Popocatépetl: Консультативный центр по вулканическому пеплу: VA EMS OBS MOV

Вт, 31 мар 2020, 07:15
07:15 AM | ПЇЅПЇЅПЇЅПЇЅПЇЅ: VN
Эруптивная активность продолжается. Консультативный центр по вулканическому пеплу (VAAC) в Washington предупредил о шлейфе вулканического пепла, который поднялся на высоту 21000 футов (6400 m).
Полный отчет выглядит следующим образом:

FVXX20 at 07:13 UTC, 31/03/20 from KNES
VA ADVISORY
DTG: 20200331/0711Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2020/350

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

ERUPTION DETAILS: VA EMS OBS MOV

OBS VA DTG: 31/0630Z

OBS VA CLD: SFC/FL210 N1902 W09837 - N1837 W09944
- N1902 W09953 - N1902 W09837 MOV W 10-15KT

FCST VA CLD +6HR: 31/1230Z SFC/FL210 N1903 W09837
- N1835 W09944 - N1902 W09953 - N1903 W09837

FCST VA CLD +12HR: 31/1830Z NO ASH EXP

FCST VA CLD +18HR: 01/0030Z NO ASH EXP

RMK: VA EMS OBS MOV W IN STLT IMAGERY. VA HAS
MULTIPLE CONT EMS OBS FM SUMMIT. VA FCST TO CONT
W TO WSW MOV THRU T+6HRS. ...FISHER

NXT ADVISORY: WILL BE ISSUED BY 20200331/1315Z

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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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