Popocatepetl volcano news & eruption update
Popocatépetl Volcano Volcanic Ash Advisory: NEW VA EMS to 18500 ft (5600 m)
The full report is as follows:
FVXX22 at 12:32 UTC, 20/10/20 from KNES
VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837
SUMMIT ELEV: 17802 FT [5426 M]
ADVISORY NR: 2020/923
INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS.
ERUPTION DETAILS: NEW VA EMS
OBS VA DTG: 20/1211Z
OBS VA CLD: SFC/FL185 N1902 W09841 - N1901
W09836 - N1901 W09837 - N1900 W09841 - N1902
W09841 MOV W 5KT
FCST VA CLD +6HR: 20/1800Z SFC/FL185 N1902 W09846
- N1901 W09837 - N1900 W09837 - N1859 W09846 -
FCST VA CLD +12HR: 21/0000Z NO VA EXP
FCST VA CLD +18HR: 21/0600Z NO VA EXP
RMK: VA DETECTED ON STLT MOVG SLOLY W OF SUMMIT.
WEBCAM SHOWS VA PLUME CLRLY AND SUBSIDING BLO
SUMMIT LVL OF FL178 ONCE MOVG DOWNWIND. NWP MDL
WINDS VRY LGT WITH CONF LOW IN 6 HR VA PSN.
NXT ADVISORY: WILL BE ISSUED BY 20201020/1830Z
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.