Popocatepetl volcano news & eruption update
Popocatépetl volcano Volcanic Ash Advisory: VA EM OBSD
Volcanic Ash Advisory Center Washington (VAAC) issued the following report:
FVXX21 at 05:02 UTC, 21/07/18 from KNES
VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837
SUMMIT ELEV: 17802 FT [5426 M]
ADVISORY NR: 2018/272
INFO SOURCE: GOES-EAST. NWP MODELS. CIMSS VOLCAT.
VOLCANO WEB CAMERA.
ERUPTION DETAILS: VA EM OBSD
OBS VA DTG: 21/0450Z
OBS VA CLD: SFC/FL200 N1903 W09857 - N1903 W09849
- N1858 W09849 - N1858 W09857 - N1903 W09857 MOV
FCST VA CLD +6HR: 21/1100Z SFC/FL200 NO ASH EXP
FCST VA CLD +12HR: 21/1700Z NO ASH EXP
FCST VA CLD +18HR: 21/2300Z NO ASH EXP
RMK: DISCRETE VA EM SEEN IN STLT MOV W AWAY FM
SUMMIT. MODELS INDICATES WINDS BTWN 5-10 KTS
AROUND FL200. VA EXPTCD TO DISP WI 6 HRS. ...KIM
NXT ADVISORY: WILL BE ISSUED BY 20180721/1100Z
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.