
(USGS HVO) - View to the northwest from the south rim of Halemaʻumaʻu crater showing the lava lake in Halemaʻumaʻu at Kīlauea Volcano's summit. The active western fissure is visible above the lake, producing minor spatter and a gas plume from vents at the top. This vent is also sending lava into the lake from a lava tube opening at the lake surface, and producing a small dome fountain. Numerous islands are visible floating in the lake, which itself is perched a couple meters (a couple yards) above its margin. USGS photo by H. Dietterich at 10:11 a.m. HST on 1/6/2021.
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STORY SUMMARY
HAWAIʻI VOLCANOES NATIONAL PARK - Eruptive activity remains confined to Halemaʻumaʻu, where the perched lava lake continues to rise.
(USGS HVO) – A helicopter overflight on January 5, 2021, at approximately 8:30 a.m. HST allowed for aerial visual and thermal imagery to be collected of the eruption within Halema’uma’u crater at the summit of Kīlauea Volcano. The dimensions of the lava lake are 760 m (831 yd) E-W axis and 470 m (514 yd) in N-S axis. The most recent estimate of lake area is about 28 hectares (69 acres). The scale of the thermal map ranges from blue to red, with blue colors indicative of cooler temperatures and red colors indicative of warmer temperatures. USGS map by M. Patrick.
(BIVN) – The eruption of Kīlauea continues, with all activity confined to Halemaʻmaʻu within the summit caldera.
Sulfur dioxide emission rates remain elevated. Measurements made on Sunday (Jan. 3) were in the range of 3,000-6,500 t/d, in line with what has been seen over the last week.
On Wednesday, the USGS Hawaiian Volcano Observatory said there was no indication that additional magma is currently moving into either of Kīlauea’s rift zones.
UPDATE – (8:15 a.m.) – From the USGS HVO on Thursday morning: