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.
Hydrothermal venting at residential property prompts evacuations in El Salitre, Michoacán, Mexico
Authorities in Michoacán, Mexico, evacuated a residence and nearby homes and suspended classes at a nearby preschool after hot water, steam, mud, and gases vented from the ground at a residential property in the community of El Salitre, municipality of Ixtlán, during the night of May 25–26, 2026. Protección Civil described the phenomenon as hydrothermal activity under assessment.
The Weekly Volcanic Activity Report: May 14-20, 2026
New activity/unrest was reported for 7 volcanoes from May 14 to 20, 2026. During the same period, ongoing activity was reported for 20 volcanoes.
The Weekly Volcanic Activity Report: May 7-13, 2026
New activity/unrest was reported for 5 volcanoes from May 7 to 13, 2026. During the same period, ongoing activity was reported for 17 volcanoes.
Kīlauea episode 47 ends after 9 hours, fine ash and Pele’s hair fall outside Hawaiʻi Volcanoes National Park
Episode 47 of the ongoing Halemaʻumaʻu eruption at the summit of Kīlauea ended at 00:27 HST (10:27 UTC) on May 15, 2026, after 9 hours of continuous lava fountaining from the north vent. The U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) said the eruption is paused and lowered Kīlauea to Volcano Alert Level Advisory and Aviation Color Code Yellow.
