Popocatepetl volcano news & eruption update
Вулкан Popocatépetl: Консультативный центр по вулканическому пеплу: NEW VA EMS OBS VA DTG: 19/1406Z
Полный отчет выглядит следующим образом:
FVXX22 at 14:36 UTC, 19/10/20 from KNES
VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837
SUMMIT ELEV: 17802 FT [5426 M]
ADVISORY NR: 2020/920
INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS.
ERUPTION DETAILS: NEW VA EMS
OBS VA DTG: 19/1406Z
OBS VA CLD: SFC/FL190 N1901 W09831 - N1859 W09834
- N1901 W09837 - N1901 W09837 - N1901 W09831 MOV
FCST VA CLD +6HR: 19/2000Z SFC/FL190 N1901 W09837
- N1859 W09826 - N1856 W09828 - N1901 W09837 -
FCST VA CLD +12HR: 20/0200Z NO VA EXP
FCST VA CLD +18HR: 20/0800Z NO VA EXP
RMK: VA DETECTED ON STLT MOVG SLOLY E OF SUMMIT.
VA PLUME CLRLY VSBL ON WEBCAM. NWP MDL WINDS VRY
LGT AND DO NOT AGREE WITH VA MVMNT AT FL. ...KONON
NXT ADVISORY: WILL BE ISSUED BY 20201019/2030Z=
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.