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Background:

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

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Volcanoes Today, 28 Aug 2025: Fuego volcano, Semeru, Dukono, Sangay, White Island, Lewotobi, Lewotolo, Nevado del Ruiz

Thu, 28 Aug 2025, 06:00 1756360804 | BY: VN

Suwanose-jima (Ryukyu Islands): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 9000 ft (2700 m) altitude or flight level 090 and is moving at 5 kts in W direction.
The full report is as follows: ACTIVITY CONT. VA AT 20250828/0041Z FL090 STNR OBS VA DTG:28/0050Z to 9000 ft (2700 m)

Bagana (Bougainville Island, Papua New Guinea): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 10 kts in NW direction.
The full report is as follows: VA TO FL070 OBS AT 27/2100Z EXTENDING NW OBS VA DTG:27/2100Z

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