The Weekly Volcanic Activity Report: June 4-10, 2026
New activity/unrest was reported for 3 volcanoes from June 4-10, 2026. During the same period, ongoing activity was reported for 21 volcanoes.
Major explosion recorded at Stromboli volcano, Italy
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.
Pumice from Titan Ridge eruption blocks sea access in Manus Province, Papua New Guinea
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.
Sakurajima eruption sends heavy ash over Kagoshima City, Japan
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.
The Weekly Volcanic Activity Report: May 28-June 3, 2026
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.
Explosive eruption at Sheveluch sends ash to 12 km (39 400 feet), Red aviation code issued, Russia
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 sets lava-fountaining record with episode 48, Hawaii
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.
Ashfall advisory issued as Kīlauea episode 48 begins at north vent, Hawaii
The National Weather Service (NWS) in Honolulu issued an Ashfall Advisory for Hawaiʻi Volcanoes National Park and areas to the north and northeast, including Volcano and Mountain View, after Kīlauea’s episode 48 lava fountaining began inside Halemaʻumaʻu crater on June 1, 2026.
The Weekly Volcanic Activity Report: May 21-27, 2026
New activity/unrest was reported for 4 volcanoes from May 21-27, 2026. During the same period, ongoing activity was reported for 18 volcanoes.
Submarine eruption near Titan Ridge opens new island possibility in the Bismarck Sea, Papua New Guinea
A submarine eruption that began on May 8, 2026, continues in the central Bismarck Sea, about 130 km (81 miles) southeast of Manus Island, Papua New Guinea. The eruption revealed a previously unmapped underwater volcano, now provisionally named Titan Ridge Volcano, in a remote and tectonically active area of the Pacific Ocean.
