New maps follow changes during summit eruption
(BIVN) – Kīlauea continues to erupt at the summit, with all lava activity confined to Halema’uma’u Crater in Hawai’i Volcanoes National Park.
“No significant change observed in summit tilt or GPS observations; the summit slope was flat for the past 24 hours, ”the USGS Hawaiian Volcano Observatory reported on Wednesday. “The seismic activity remains below background noise and the volcanic tremor has remained high since the start of the eruption.” Sulfur dioxide emission rates remain high and were last measured at around 2,700 tonnes per day.
Geologists recently posted new maps to the HVO website, tracking the changes happening at the summit lava lake.
Based on observations of today’s Halema’uma’u lava lake, as reported by the USGS:
Lava continues to emerge from a single vent in the western wall of Halema’uma’u Crater. The western end of the lake showed a maximum elevation of about 790 meters (2,592 ft) above sea level when measured by field crews on October 19, representing an increase of 1 meter (3 ft) from October 17, 2021, measurement and a total increase of about 46 meters (151 ft) since lava emerged on September 29. The total erupting volume since the start of the eruption was estimated to be around 19.9 million cubic meters (5.3 billion gallons) on October 15. The west vent had constant fountain heights of up to 9m (30ft) with occasional bursts up to 14m (46ft) observed by field crews on October 19. The lava lake is not level over its entire surface due to the location of the vent at the western end. The western quadrant of the lake is approximately 2 meters (6.6 feet) higher than the active south lobe, 3 meters (9.8 feet) higher than the active north lobe, and there are approximately 7 meters (23 feet) of difference in altitude between the active west and the stagnant eastern part of the lake.
No unusual activity was noted in the Kīlauea East Rift area. The Hawaiian Volcano Observatory says it will continue to monitor Kīlauea Volcano closely and will continue to post daily updates on Kīlauea Volcano until further notice.