UPDATE: Kīlauea’s 48th eruptive episode on Hawai‘i Island has ended

Editor’s note: This story was updated at 6:29 p.m. on June 1, 2026.

Kīlauea’s 48th lava fountaining episode within the Halemaʻumaʻu crater ended at 1:37 p.m, on June 1, after 9 hours of continuous lava fountaining from the north vent.

Due to reduced ground and aviation hazards, the U.S. Geological Survey dropped the Volcano Alert Level from WATCH to ADVISORY and the Aviation Color Code from ORANGE to YELLOW. 

The eruption began at 4:40 a.m. on Monday, June 1, with lava fountaining focused on the north vent and reaching more than 650 feet.

An estimated 7.3 million cubic yards of lava erupted and covered about 40% of the Halemaʻumaʻu crater floor. The plume from this eruption is currently reaching 24,000 feet above sea level, according to a report from the Hawaiian Volcano Observatory.

More than 90 overflow events from the south vent started at 5:41 p.m. on Sunday. 

The Halemaʻumaʻu eruption now has the most fountaining episodes ever recorded for an episodic fountaining eruption, edging out the Pu‘u‘ō‘ō eruption, which had 47 fountain episodes, according to the Hawaiian Volcano Observatory. Other eruptions have had additional episodes related to changes in vent activity and location, this only applies to episodic fountains.

Most tephra fell within the closed area of Hawaiʻi Volcanoes National Park, but sparse reticulite up to 1 inch in size fell at both the Uēkahuna overlook and on Highway 11 west of Nāmakanipaio campground. Fine ash and Peleʻs hair were reported from Hawaiʻi Volcanoes National Park in communities to the northeast, including Mauna Loa Estates, Ohia Estates, Volcano village, and Royal Hawaiian Estates.

The plume from this eruption reached 24,000 feet above sea level, according to a report from the Hawaiian Volcano Observatory.

The National Weather Service issued an ashfall advisory for communities near the Hawai‘i Volcanoes National Park, including Mountain View and Pāhoa. Ashfall and light tephra are expected to fall in the communities North of the Park.

Kīlauea has been erupting periodically since Dec. 23, 2024. The lava fountaining episodes have continued for a day or less.