The Weekly Volcanic Activity Report: June 11-17, 2026
New activity/unrest was reported for 5 volcanoes from June 11-17, 2026. During the same period, ongoing activity was reported for 17 volcanoes.

New activity/unrest was reported for 5 volcanoes from June 11-17, 2026. During the same period, ongoing activity was reported for 17 volcanoes.

Kīlauea’s episode 49 eruption began at 09:36 HST (19:36 UTC) on June 14, 2026, at Halemaʻumaʻu crater and ended abruptly at 17:05 HST (03:05 UTC on June 15) after 7.5 hours of continuous lava fountaining.

The Icelandic Meteorological Office (IMO) raised the Aviation Color Code for Bárðarbunga volcano to Yellow at 00:43 UTC on June 14, 2026, after an intense earthquake swarm began in the northwestern part of the caldera following a M4.8 earthquake at 20:14 UTC on June 13.

New activity/unrest was reported for 3 volcanoes from June 4-10, 2026. During the same period, ongoing activity was reported for 21 volcanoes.

Italy’s National Institute of Geophysics and Volcanology (INGV) reported a major explosion at Stromboli volcano at 07:12 LT (05:12 UTC) on June 12, 2026.

Large floating pumice accumulations from the Titan Ridge submarine eruption have inundated coastal villages in Manus Province, Papua New Guinea, this week, blocking sea access and preventing boat movement.

An eruption at Sakurajima’s Minamidake summit crater sent heavy ash over Kagoshima City, Japan, on June 7, 2026, with a plume reaching about 1 300 m (4 300 feet) above the crater.

New activity/unrest was reported for 3 volcanoes from May 28-June 3, 2026. During the same period, ongoing activity was reported for 20 volcanoes.

Sheveluch volcano on Russia’s Kamchatka Peninsula produced an explosive eruption at 08:00 UTC on June 6, 2026, sending ash to about 12 km (39 400 feet) above sea level and triggering a Red aviation color code.

Kīlauea’s ongoing summit eruption reached its 48th lava-fountaining episode in Halemaʻumaʻu crater, Hawaii, at 04:40 HST (14:40 UTC) on June 1, 2026, setting a written-record benchmark for episodic lava fountaining during a single Kīlauea eruption, according to the USGS Hawaiian Volcano Observatory (HVO). The episode ended abruptly at 13:37 HST (23:37 UTC) after just under 9 hours of continuous fountaining from the north vent, and the eruption was paused afterward.