Popocatepetl volcano news & eruption update

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

Ср, 28 авг 2019, 20:15
20:15 PM | ПЇЅПЇЅПЇЅПЇЅПЇЅ: VN
Эруптивная активность продолжается. Консультативный центр по вулканическому пеплу (VAAC) в Washington предупредил о шлейфе вулканического пепла, который поднялся на высоту 22000 футов (6700 m).
Полный отчет выглядит следующим образом:

FVXX24 at 20:03 UTC, 28/08/19 from KNES
VA ADVISORY
DTG: 20190828/1958Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2019/772

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

ERUPTION DETAILS: CONS VA EMS.

OBS VA DTG: 28/1946Z

OBS VA CLD: SFC/FL220 N1908 W09924 - N1901 W09837
- N1900 W09837 - N1859 W09927 - N1908 W09924 MOV
W 15-20KT

FCST VA CLD +6HR: 29/0200Z SFC/FL220 N1901 W09837
- N1900 W09837 - N1852 W09920 - N1901 W09922 -
N1901 W09837

FCST VA CLD +12HR: 29/0800Z SFC/FL220 N1901
W09837 - N1900 W09837 - N1847 W09920 - N1858
W09923 - N1901 W09837

FCST VA CLD +18HR: 29/1400Z SFC/FL220 N1901
W09837 - N1900 W09837 - N1850 W09921 - N1900
W09923 - N1901 W09837

RMK: SINCE 1800Z, BTWN 5 AND 7 LGT DISCRETE VA EMS
OBSD IN WEBCAM WITH CONS VRY LGT VA EMS IN BTWN.
VA CLDS OBSD 45 NMI W OF SUMMIT. NWP MDLS FCST VA
TO MOV WSW BY T+12HRS. ...HOSLEY

NXT ADVISORY: WILL BE ISSUED BY 20190829/0200Z

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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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