Popocatepetl volcano news & eruption update

Вулкан Popocatépetl: Консультативный центр по вулканическому пеплу: CONT VA EM.

Вт, 3 сен 2019, 14:45
14:45 PM | 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:

FVXX24 at 14:37 UTC, 03/09/19 from KNES
VA ADVISORY
DTG: 20190903/1435Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2019/798

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

ERUPTION DETAILS: CONT VA EM.

OBS VA DTG: 03/1411Z

OBS VA CLD: SFC/FL210 N1903 W09838 - N1859 W09835
- N1850 W09845 - N1859 W09852 - N1903 W09838 MOV
SW 5-10KT

FCST VA CLD +6HR: 03/2000Z SFC/FL210 N1903 W09838
- N1902 W09835 - N1845 W09841 - N1849 W09853 -
N1903 W09838

FCST VA CLD +12HR: 04/0200Z SFC/FL210 N1902
W09838 - N1900 W09837 - N1847 W09856 - N1858
W09901 - N1902 W09838

FCST VA CLD +18HR: 04/0800Z SFC/FL210 N1901
W09838 - N1901 W09835 - N1843 W09840 - N1845
W09851 - N1901 W09838

RMK: CONT VA EM OBS IN STLT MOV SW FM SUMMIT AT
FL210. NWP MODEL GUIDANCE INDICATES WSW WINDS
THRU T+12 HR. ...LEVINE

NXT ADVISORY: WILL BE ISSUED BY 20190903/2030Z

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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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