Svartsengi (Reykjanes peninsula, SW Iceland): (31 Jul) Yesterday morning, an increased microseismic activity was detected within the Sundhnúkur crater row. The activity, taking place about 50 minutes, suggests rising pressure within the magmatic system. Over the past two weeks, the daily number of earthquakes has been increasing.
Model calculations of volume change indicate that sufficient magma has recharged the magma chamber underneath to trigger a new event, with an increased likelihood of this occurring within the next 7-10 days.
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Ibu (Halmahera, Indonesia): (31 Jul) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 8000 ft (2400 m) altitude or flight level 080 .
The full report is as follows: VA TO FL080 OBS AT 31/0140Z MOV NW OBS VA DTG:31/0140Z to 8000 ft (2400 m)
Lewotobi (Flores): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 9000 ft (2700 m) altitude or flight level 090 .
The full report is as follows: VA TO FL090 OBS MOV NW OBS VA DTG:31/1720Z to 9000 ft (2700 m)
Semeru (East Java, Indonesia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 and is moving at 10 kts in SW direction.
The full report is as follows: VA TO FL150 LAST REPORTED AT 31/1012Z OBS VA DTG:31/1012Z to 15000 ft (4600 m)
Dukono (Halmahera): 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 .
The full report is as follows: VA TO FL070 OBS MOV N AT 31/1950Z OBS VA DTG:31/1950Z to 7000 ft (2100 m)
Fuego (Guatemala): Mild explosive activity continues from the volcano. The Volcanic Ash Advisory Center (VAAC) Washington reported intermittent emissions of volcanic ash plumes.
The full report is as follows: sporadic emissions of volcanic ash
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: ONGOING VA EMS to 20000 ft (6100 m)
Sabancaya (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: continuous ash emissions
Nyamuragira (DRCongo): (31 Jul) The effusive eruption at the volcano has evolved further since the last update.
Since the lava started to flow beyond the northern caldera rim, another branch of the active lava, oozing out from the lava lake, formed on the western slope and continues to advance in this direction, as detectable in the latest Sentinel-2 imagery from 30 July.
The lava on the northwestern flank keeps the flow active, currently about 6 km long.
Volcano Activity Summary for 31 Jul 2024:
