Klyuchevskoy (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA IS NOT IDENTIFIABLE IN SATELLITE IMAGERY.
Shiveluch (Kamchatka): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 and is moving at 30 kts in W direction.
The full report is as follows: VA AT 20230419/1330Z FL140 EXTD W OBS VA DTG:19/1330Z to 14000 ft (4300 m)
Semeru (East Java, Indonesia): (19 Apr) The actively growing lava dome in the inner Jonggring Saloko summit crater generated a block-and-ash flow this morning at 07:10 local time.
The pyroclastic flow (gravity-driven mass flow) descended along the steep southeastern ravine and reached approx. 2 km length as can be seen in the video recorded by local observers in Huntap. Grey ash plumes formed as they separated from the current (so-called phoenix clouds). The reason for this flow was presumably either accumulated lava material from the front of the lava flow or destabilization of the lava dome resulting in the partial collapse. Pyroclastic flows are deadly, turbulent hot avalanches of lava rock fragments of all sizes embedded in a mixture of turbulent gas and ash racing down slopes.
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Dukono (Halmahera): (18 Apr) 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 05 kts in SE direction.
The full report is as follows: VA TO FL070 MOVING SE OBS VA DTG:18/2250Z to 7000 ft (2100 m)
Aoba (Vanuatu): (19 Apr) The Vanuatu Meteorology and Geohazards Department’s (VMGD) surveillance cameras observed a continuous eruption plume at about 07:30 local time this morning.
Emissions of steam and ash, representing ‚venting‘ activity, rose approx. 2,300 ft (700 m) above the summit and drifted towards the east-southeast of the island.
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Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 23000 ft (7000 m) altitude or flight level 230 and is moving at 20 kts in SE direction.
The full report is as follows: FRQT VA EMS to 23000 ft (7000 m)
Santiaguito (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 .
The full report is as follows: OCCL VA EMS to 15000 ft (4600 m)
Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 and is moving at 10 kts in S direction.
The full report is as follows: CONT VA EMS OBS to 16000 ft (4900 m)
Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows: VA EMS PSBL to 20000 ft (6100 m)
Reventador (Ecuador): (18 Apr) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: NO VA EMS
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 23000 ft (7000 m) altitude or flight level 230 and is moving at 15 kts in N direction.
The full report is as follows: continuous ash emissions to 23000 ft (7000 m)
Volcano Activity Summary for 19 Apr 2023:
