Popocatepetl volcano news & eruption update
Вулкан Popocatépetl: Консультативный центр по вулканическому пеплу: NEW VA EMS
Полный отчет выглядит следующим образом:
FVXX22 at 11:30 UTC, 18/10/20 from KNES
VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837
SUMMIT ELEV: 17802 FT [5426 M]
ADVISORY NR: 2020/916
INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS.
ERUPTION DETAILS: NEW VA EMS
OBS VA DTG: 18/1106Z
OBS VA CLD: SFC/FL190 N1902 W09837 - N1901 W09837
- N1858 W09852 - N1901 W09852 - N1902 W09837 MOV
FCST VA CLD +6HR: 18/1700Z SFC/FL190 N1902 W09837
- N1901 W09836 - N1856 W09852 - N1859 W09852 -
FCST VA CLD +12HR: 18/2300Z SFC/FL190 N1902
W09837 - N1901 W09837 - N1851 W09841 - N1853
W09845 - N1902 W09837
FCST VA CLD +18HR: 19/0500Z NO VA EXP
RMK: VA PUFF DETECTED ON STLT MOVG W OF SUMMIT.
PERSISTENT THERMAL ANOMALY NOTED ON VOLCAT. NWP
MDL WINDS VRY LGT AND FCST TO TURN MORE FM THE NE
THRU T+12HR. ...KONON
NXT ADVISORY: WILL BE ISSUED BY 20201018/1730Z
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.