Popocatepetl volcano news & eruption update
Вулкан Popocatépetl: Консультативный центр по вулканическому пеплу: LGT VA AND GAS EM ARND 21/1230Z
Полный отчет выглядит следующим образом:
FVXX21 at 13:27 UTC, 21/05/19 from KNES
PSN: N1901 W09837
SUMMIT ELEV: 17802 FT [5426
ADVISORY NR: 2019/362
INFO SOURCE: GOES-EAST. MEXICO CITY MWO. WEB
NWP MODELS. RADIOSONDE.
ERUPTION DETAILS: LGT VA AND GAS EM ARND
OBS VA DTG: 21/1316Z
OBS VA CLD: SFC/FL180 N1902 W09844 -
- N1859 W09849 - N1902 W09849 - N1902 W09844 MOV
FCST VA CLD +6HR: 21/1930Z SFC/FL180 NO ASH EXP
FCST VA CLD +12HR:
22/0130Z NO ASH EXP
FCST VA CLD +18HR: 22/0730Z NO ASH EXP
RMK: LGT VA
EM SEEN IN WEB CAM AND STLT MOV WSW
AND CONFIRMED BY MEXICO CITY MWO.
RPRTD THAT EM
IS LGT VA AND GASES AND DSIPTG QUICKLY. FURTHER
MAY BE EXPECTED BASED ON ACT OVER LAST 24
WILL BE ISSUED BY 20190521/1930Z
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.