Popocatepetl volcano news & eruption update
Popocatépetl volcano Volcanic Ash Advisory: ONGOING VA EMS
FVXX22 at 06:43 UTC, 20/04/18 from KNES
VA ADVISORY
DTG: 20180420/0641Z
VAAC: WASHINGTON
VOLCANO: POPOCATEPETL
341090
PSN: N1901 W09837
AREA: MEXICO
SUMMIT ELEV: 17802 FT [5426
M]
ADVISORY NR: 2018/189
INFO SOURCE: GOES-EAST. NWP MODELS. CIMSS
VOLCAT.
VOLCANO WEB CAMERA.
ERUPTION DETAILS: ONGOING VA EMS
OBS VA
DTG: 20/0615Z
OBS VA CLD: SFC/FL200 N1902 W09837 - N1859 W09836
- N1847
W09848 - N1852 W09852 - N1902 W09837 MOV
SW 15KT SFC/FL220 N1819
W09755 - N1814 W09742 -
N1808 W09801 - N1813 W09813 - N1819 W09755 MOV
SW
15-20KT
FCST VA CLD +6HR: 20/1230Z SFC/FL200 N1901 W09837
- N1859
W09835 - N1841 W09856 - N1846 W09900 -
N1901 W09837
FCST VA CLD +12HR:
20/1830Z SFC/FL200 NO ASH EXP
FCST VA CLD +18HR: 21/0030Z NO ASH
EXP
RMK: LGT REMNANT VA OBS IN STLT APPROX 80NMI SE
FM THE SUMMIT AND
EXPECTD TO DISP BY T+06. NEW
DISCRETE VA EMS BEG ARND 0430Z MOV SW AT
15KTS.
LEADING EDGE EXTD 20NMI THRU 0615Z. ...RAMIREZ
NXT ADVISORY:
WILL BE ISSUED BY 20180420/1245Z
- О НОВОСТИ ВСЕ: Popocatépetl вулкан
- О ИНФОРМАЦИЯ: Popocatépetl вулкан
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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