The eruption within Halema'uma'u, at KIlauea summit within Hawai'i Volcanoes National Park, continues at dawn on September 30, 2021. Fountaining at multiple fissure locations on the base and west wall of the crater continues, and a lava lake is growing within Halema'uma'u. USGS image by B. Carr.
KIlauea volcano is erupting. With the summit eruption continuing through the night, HVO scientists monitor the eruption for changes in activity and volcanic hazards. High levels of volcanic gases are the primary hazard of concern, as this hazard can have far-reaching effects down-wind. USGS photo taken by D. Downs.
A Hawaiian Volcano Observatory geologist collects a sample of tephra from the recent eruption within Halema'uma'u, at KIlauea summit. Geochemical analyses of these eruption products will provide information about magma storage prior to the eruption. USGS image by K. Lynn.
Tephra from the recent eruption within Halema'uma'u, at Kīlauea summit, is accumulating downwind of the active vents. Tephra is a term that describes products of an eruption that travel through the air before being deposited. Tephra products include cinder, pumice, Pele’s Hair and Pele’s tears, which form during lava fountaining, and are light weight and can be wafted downwind with the plume. This photo shows a piece of tephra, approximately 10 cm (4 inches) long that was deposited southwest of the crater. USGS image by K. Lynn.
The eruption within Halema’uma’u crater, at Kilauea volcano’s summit within Hawaii Volcanoes National Park continued Thursday morning.