Popocatepetl volcano news & eruption update
Вулкан Popocatépetl: Консультативный центр по вулканическому пеплу: VA EM OBSD
Полный отчет выглядит следующим образом:
FVXX22 at 12:10 UTC, 01/10/20 from KNES
VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837
SUMMIT ELEV: 17802 FT [5426 M]
ADVISORY NR: 2020/855
INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS.
ERUPTION DETAILS: VA EM OBSD
OBS VA DTG: 01/1156Z
OBS VA CLD: SFC/FL210 N1911 W09840 - N1901 W09837
- N1900 W09838 - N1907 W09847 - N1911 W09840 MOV
FCST VA CLD +6HR: 01/1800Z SFC/FL210 N1911 W09839
- N1911 W09832 - N1902 W09835 - N1900 W09838 -
FCST VA CLD +12HR: 02/0000Z NO VA EXP
FCST VA CLD +18HR: 02/0600Z NO VA EXP
RMK: CONS VA EM SEEN ON STLT IMAGERY EXTENDING
APPROX 10 NM NW FM SUMMIT. VA HEIGHT AND FRCST
BASED ON IMAGERY AND MODEL GUIDANCES. LOW
CONFIDENCE IN FRCST DUE TO LGHT AND VAR WINDS.
NXT ADVISORY: WILL BE ISSUED BY 20201001/1800Z
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.