Shiveluch (Kamchatka): (31 Jan) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 and is moving at 20 kts in W direction. The full report is as follows: VA EMISSIONS CONTINUING OBS VA DTG:31/0520Z to 15000 ft (4600 m) Popocatépetl (Central Mexico): (30 Jan) Explosive…
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