Lava fountaining from the north and south vent in Halema’uma’u crater of Kilauea (image: HVO webcam)
The Hawaiian Volcano Observatory (HVO) reports that „episode 30 vigorous fountaining of the ongoing Halemaʻumaʻu eruption began at approximately 1:20 a.m. HST on august 6 and is currently producing broad fountains150-300 feet (45-90 meters) high from the north vent. Lava flows from the north vent have covered about 20% of the floor of Halemaʻumaʻu crater. There is a line of small fountains that formed south of the old south vent area that are producing lower volume flows. This appears to be a new vent for this eruption and seems to be associated with a cluster of small earthquakes just south of Halemaʻumaʻu. Past episodes have produced incandescent lava fountains over 1000 feet (300 meters) high that produce eruptive plumes up to 20,000 feet (6000 meters) above ground level. According to the National Weather Service, winds are light and variable from the north direction, which suggests that volcanic gas emissions and volcanic material may be distributed to the south but may fall in a broader pattern than during typical trade winds.“
As of Monday, the activity within the crater has completely ceased, accompanied by a drop in tremor levels. A minor activity was visible overnight, but no signs of activity have been detected yesterday. The eruption is now considered over.
However, satellite and GNSS measurements show that land uplift has resumed—rising approximately 2–3 centimeters. This indicates continued magma accumulation beneath Svartsengi. If the uplift continues, it could result in new magma intrusions and potential future eruptions.
The extent of the lava field has remained largely unchanged in recent days, but it is still unstable. This instability can cause sudden surges at the lava front. In such events, the edge may collapse unexpectedly, allowing a glowing stream of lava to advance rapidly. These surges are extremely dangerous, and staying well clear of the lava edge is crucial—even though the eruption has ended.
Gas pollution in the area has remained low over the past two days, and no volcanic haze has been observed. Still, volcanic haze may appear intermittently for several days after an eruption ends.
Krasheninnikov (Kamchatka, Russia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 and is moving at 20 kts in SE direction. The full report is as follows: VA EMISSIONS CONTINUING OBS VA DTG:05/1120Z to 20000 ft (6100 m)
Klyuchevskoy (Kamchatka): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo 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: VA EMISSIONS CONTINUING OBS VA DTG:05/1720Z to 23000 ft (7000 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 . The full report is as follows: VA TO FL150 OBS AT 05/0950Z MOV SW OBS VA DTG:05/0950Z to 15000 ft (4600 m)
Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 . The full report is as follows: NEW VA EMS. to 19000 ft (5800 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: ONGOING VA EMS. to 20000 ft (6100 m)
Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ONGOING VA EMS
Sabancaya (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: NO VA DETECTED
