Popocatepetl volcano news & eruption update

Popocatépetl volcano Volcanic Ash Advisory: DISCRETE VA EM ARND 0945Z

Пн, 26 фев 2018, 11:15
11:15 AM |
Volcanic Ash Advisory Center Washington (VAAC) issued the following report:

FVXX22 at 11:06 UTC, 26/02/18 from KNES
VA ADVISORY
DTG: 20180226/1103Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL
341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426
M]

ADVISORY NR: 2018/109

INFO SOURCE: GOES-EAST. NWP MODELS. CIMSS
VOLCAT.
VOLCANO WEB CAMERA.

ERUPTION DETAILS: DISCRETE VA EM ARND
0945Z

OBS VA DTG: 26/1052Z

OBS VA CLD: SFC/FL210 N1905 W09825 - N1858
W09822
- N1859 W09837 - N1902 W09837 - N1905 W09825 MOV
E 15KT

FCST VA
CLD +6HR: 26/1700Z SFC/FL210 N1904 W09802
- N1856 W09800 - N1858
W09817 - N1903 W09819 -
N1904 W09802

FCST VA CLD +12HR: 26/2300Z
SFC/FL210 NO ASH EXP

FCST VA CLD +18HR: 27/0500Z NO ASH EXP

RMK:
DISCRETE VA EM OBS IN STLT BEGINNING JUST
BFR 10Z. ASH IS MOVG E FM
SUMMIT AT 15KTS NEAR
FL210 AND QUICKLY BECOMG DIFF. ...RAMIREZ

NXT
ADVISORY: WILL BE ISSUED BY 20180226/1700Z

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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