Report on Popocatepetl (Mexico) — 12 June-18 June 2002
Smithsonian / US Geological Survey Weekly Volcanic Activity Report,
12 June-18 June 2002
Managing Editor: Gari Mayberry
Please cite this report as:
Global Volcanism Program, 2002. Report on Popocatepetl (Mexico). In: Mayberry, G (ed.), Weekly Volcanic Activity Report, 12 June-18 June 2002. Smithsonian Institution and US Geological Survey.
19.023°N, 98.622°W; summit elev. 5393 m
All times are local (unless otherwise noted)
During 12-18 June, activity at Popocatépetl mainly consisted of small steam-and-gas emissions. A photograph of the lava dome taken on 22 May revealed that it had diminished in size compared to 29 April. Based on information from ground reports, video footage, and MWO, the Washington VAAC reported that an eruption occurred on 17 June at 1140. An ash cloud was produced that rose to a height of ~8 km a.s.l. and drifted to the WSW.
Geological Summary. Volcán Popocatépetl, whose name is the Aztec word for smoking mountain, rises 70 km SE of Mexico City to form North America's 2nd-highest volcano. The glacier-clad stratovolcano contains a steep-walled, 400 x 600 m wide 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 to the south. The modern volcano was constructed south of the late-Pleistocene to Holocene El Fraile cone. Three major Plinian eruptions, the most recent of which took place about 800 CE, have occurred 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 Pre-Columbian time.