Popocatepetl volcano news & eruption update
Popocatépetl volcano Volcanic Ash Advisory: ONGOING VA EMS
Volcanic Ash Advisory Center Washington (VAAC) issued the following report:
FVXX22 at 08:58 UTC, 31/07/18 from KNES
PSN: N1901 W09837
SUMMIT ELEV: 17802 FT [5426
ADVISORY NR: 2018/290
INFO SOURCE: GOES-EAST. MEXICO CITY MWO.
ERUPTION DETAILS: ONGOING VA EMS
OBS VA DTG: 31/0830Z
CLD: VA NOT IDENTIFIABLE FROM SATELLITE
DATA WINDS SFC/FL220
FCST VA CLD +6HR: 31/1430Z
FCST VA CLD +12HR: 31/2030Z
VA CLD +18HR: 01/0230Z
RMK: VA IS NOT OBS IN STLT IMAGERY DUE TO
CLDS, ONLY HOT SPOT IS OBS. MWO RPRT INDICATES
VA MOV NW AT FL220.
NWP MODEL INDICATE A SW MOV
AT THIS FL. THUS MODEL MOV DOES NOT AGREE
OBS MOV. ...ZHU
NXT ADVISORY: WILL BE ISSUED BY 20180731/1500Z
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.