![]() Popocatepetl, the second highest volcano in Mexico, is a giant stratovolcano,ħ0 km (~45 miles) southeast of downtown Mexico City, and 45 km (~30 miles) These pluses - or fiducial marks, as they are called. If there are anyĭistortions in a satellite image, scientists can check the distancesīetween the pluses to make correction. Tiny, equally spaced marks on the satellite camera. Pluses are on these images? They are not giant marks on the ground, but are The eruptions are coming from within the crater. If you look closely you can see the crater Right: Enlargement of the Popocateptl part of ![]() Near the top is Tlaloc, a much older volcano that Middle is Iztaccihuatl, another volcano which has not erupted during the Near the bottom of the range, and the white, snow-covered ridge near the A long mountain range is in the center of the ![]() The area shown is about 30 km wide (~20 miles), and the smallest object Frequent historical eruptions, first recorded in Aztec codices, have occurred since precolumbian time.ġ980. Three major plinian eruptions, the most recent of which took place about 800 AD, have occurred from Popocatepetl since the mid Holocene, accompanied by pyroclastic flows and voluminous lahars that swept basins below the volcano. The modern volcano was constructed to the south of the late-Pleistocene to Holocene El Fraile cone. 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 generally symmetrical volcano is modified by the sharp-peaked Ventorrillo on the NW, a remnant of an earlier volcano. The glacier-clad stratovolcano contains a steep-walled, 250-450 m deep crater. Volcán Popocatepetl, 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. Photo courtesy of CENAPRED, Mexico City, 1994. El Ventorrillo, the small peak on the right skyline, is the summit of the eroded Nexpayantla volcano, a predecessor to the modern cone of Popocatepetl. Frequent historical eruptions have been recorded since the precolumbian era. Popocatepetl, Mexico Popocatepetl, Mexico ERUPTIVE HISTORYĪ plume of steam and ash rises above Popocatepetl, whose Aztec name means "Smoking Mountain." This December 1994 aerial view is of the NE side of the massive stratovolcano, which towers more than 3200 m above the Valley of Mexico to the right. ![]()
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