Popocatepetl volcano news & eruption update

Popocatépetl volcano Volcanic Ash Advisory: ONGOING ACT

Ср, 22 ноя 2017, 19:45
19:45 PM |
Volcanic Ash Advisory Center Washington (VAAC) issued the following report:

FVXX20 at 19:33 UTC, 22/11/17 from KNES
VA ADVISORY
DTG: 20171122/1931Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL
341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426
M]

ADVISORY NR: 2017/229

INFO SOURCE: GOES-EAST. NON-OPERATIONAL
GOES-16.
NWP MODELS. VOLCANO WEB CAMERA.

ERUPTION DETAILS: ONGOING
ACT

OBS VA DTG: 22/1907Z

OBS VA CLD: SFC/FL230 N1846 W09742 - N1833
W09741
- N1832 W09750 - N1844 W09752 - N1846 W09742 MOV
SE 20-30KT

FCST
VA CLD +6HR: 23/0100Z SFC/FL230 N1903 W09837
- N1858 W09825 - N1849
W09831 - N1858 W09838 -
N1903 W09837

FCST VA CLD +12HR: 23/0700Z
SFC/FL230 NO ASH EXP

FCST VA CLD +18HR: 23/1300Z NO ASH EXP

RMK:
REMNANT VA CAN BE SEEN QUICKLY DISP MOV TO
THE SE. T+6 IS FOR PSBL
FUTURE EMS AND MODELS
SUGGEST MOV TO THE SE. ...WHISNANT

NXT ADVISORY:
WILL BE ISSUED BY 20171123/0130Z

Предыдущие новости

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.


---


Source: GVP, Smithsonian Institution - Popocatepetl information


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