Popocatepetl volcano news & eruption update
Вулкан Popocatépetl: Консультативный центр по вулканическому пеплу: VA EMS OBS
Полный отчет выглядит следующим образом:
FVXX24 at 16:33 UTC, 21/01/20 from KNES
VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837
SUMMIT ELEV: 17802 FT [5426 M]
ADVISORY NR: 2020/067
INFO SOURCE: GOES-EAST. NWP MODELS. VOLCAT.
ERUPTION DETAILS: VA EMS OBS
OBS VA DTG: 21/1610Z
OBS VA CLD: SFC/FL210 N1837 W09840 - N1741 W09820
- N1744 W09835 - N1837 W09840 MOV S 10KT
FCST VA CLD +6HR: 21/2200Z SFC/FL210 NO ASH EXP
FCST VA CLD +12HR: 22/0400Z NO ASH EXP
FCST VA CLD +18HR: 22/1000Z NO ASH EXP
RMK: VA EMS OBS MOV S FM TO NEAR 73NM FM SUMMIT.
VA EMS IS LONG AND THIN AND STRETCHES FOR APPROX
60NM LEADING BACK TOWARDS TO SUMMIT. VA FCST TO
DISP WITHIN T+6HRS. ...FISHER
NXT ADVISORY: WILL BE ISSUED BY 20200121/2230Z
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.