Popocatepetl volcano news & eruption update

Popocatépetl volcano Volcanic Ash Advisory: CONT VA EMS

Пн, 6 ноя 2017, 13:00
13:00 PM |
Volcanic Ash Advisory Center Washington (VAAC) issued the following report:

FVXX21 at 12:49 UTC, 06/11/17 from KNES
VA ADVISORY
DTG: 20171106/1247Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2017/164

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

ERUPTION DETAILS: CONT VA EMS

OBS VA DTG: 06/1215Z

OBS VA CLD: SFC/FL200 N1903 W09841 - N1859 W09840
- N1835 W09959 - N1855 W10007 - N1903 W09841 MOV
WSW 15-20KT

FCST VA CLD +6HR: 06/1830Z SFC/FL200 N1904 W09841
- N1858 W09838 - N1829 W10000 - N1857 W10011 -
N1904 W09841

FCST VA CLD +12HR: 07/0030Z SFC/FL200 N1905
W09840 - N1858 W09837 - N1827 W10001 - N1856
W10013 - N1905 W09840

FCST VA CLD +18HR: 07/0630Z SFC/FL200 N1906
W09838 - N1859 W09837 - N1826 W10002 - N1858
W10014 - N1906 W09838

RMK: CONT VA EMS OBS IN STLT IMAGERY EXT 80NM
FROM SUMMIT. NWP MODELS SHOW CONSISTENT WINDS OUT
OF THE ENE. ...FISHER

NXT ADVISORY: WILL BE ISSUED BY 20171106/1845Z

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.


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Source: GVP, Smithsonian Institution - Popocatepetl information


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