Popocatepetl volcano news & eruption update

Вулкан Popocatépetl: спорадические выбросы вулканического пепла

Ср, 26 фев 2020, 15:15
15:15 PM | ПЇЅПЇЅПЇЅПЇЅПЇЅ: VN
Слабая эруптивная активность вулкана продолжается. Консультативный центр по вулканическому пеплу (VAAC) Washington сообщил о периодических выбросах вулканического пепла.
Полный отчет выглядит следующим образом: INTMT VA EMS .

FVXX20 at 15:00 UTC, 26/02/20 from KNES
VA ADVISORY
DTG: 20200226/1500Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2020/205

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

ERUPTION DETAILS: INTMT VA EMS

OBS VA DTG: 26/1451Z

OBS VA CLD: SFC/FL200 N1924 W09755 - N1915 W09750
- N1901 W09838 - N1904 W09840 - N1924 W09755 MOV
E 30-35KT

FCST VA CLD +6HR: 26/2100Z SFC/FL200 N1923 W09754
- N1913 W09749 - N1900 W09838 - N1904 W09838 -
N1923 W09754

FCST VA CLD +12HR: 27/0300Z SFC/FL200 N1911
W09749 - N1902 W09749 - N1901 W09837 - N1902
W09838 - N1911 W09749

FCST VA CLD +18HR: 27/0900Z SFC/FL200 N1910
W09749 - N1858 W09749 - N1859 W09837 - N1902
W09837 - N1910 W09749

RMK: MANY DISCRETE SML VA EMS OBSD IN WEBCAM. G16
RGB COMPOSITE IMAGERY SHOWS VA MOVING ENE AND
DISPG ABT 50 NMI ENE OF SUMMIT. NWP MDLS FCST
WIND SHIFT AT T+12 TO DUE W. ...HOSLEY

NXT ADVISORY: WILL BE ISSUED BY 20200226/2100Z

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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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