VOLCANO UPDATE: Lava Advances Over Pulama PaliJune 28, 2016, 10:36 AM HST (Updated June 29, 2016, 11:51 AM) · 0 Comments
According to a Hawaiian Volcano Observatory update issued on Monday, June 27, at 6:52 a.m., the active lava flow southeast of Puʻu ʻŌʻō continues to advance and spread, still posing no threat to nearby communities.
A satellite image from Friday, June 24, showed that the flow was 5.2 km (3.2 miles) long, and a small area of the flow front had entered the northern portion of the abandoned Royal Gardens subdivision.
Paradise Helicopters reports today that the flow has now gone past the Pulama Pali and is headed towards the ocean.
Lava has made significant progression toward the ocean this past week, and has advanced over the pali (cliff scarp) near the abandoned Royal Gardens subdivision, Mick Kalber, Paradise Helicopters’ videographer and owner of Tropical Visions, reported on Tuesday, June 28, 2016, after a sweep of the area.
This new flow is over three miles long, and has descended Pulama Pali, he said.
Lava has dotted the mountain with numerous outbreaks, which are overplating the flow field, and covering older pahoehoe and ‘a‘a flows.
The multitude of flows are also expanding the margins of the flow field.
“The lava that has made its way over the pali and continues on to the coast, will most likely consolidate into fewer tubes, and develop a more established delivery system,” said Kalber.
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There is a tremendous amount of lava being supplied to the flow, as evidenced by the skylights near the vent, Kalber observed.
“Interestingly, the most lava we’ve seen in quite some time appeared in a huge skylight to the northeast, said Kalber. “This skylight shows a river of lava rushing by, some 30 to 40 feet or more below the surface.
“We were able to access the Puʻu ʻŌʻō, vent, but could not see the lava lake on the west end due to its heavy plume and steam,” Kalber said. “Thankfully, residents of the communities to the north and east can continue to rest easy, as Pele’s lava continues moving away from their homes.”
HVO reports that bright incandescence is visible in the overnight webcam views of the active lava flow field, marking lava tube skylights and scattered breakouts near the flow front.
The lava lake at Halemaʻumaʻu Crater continues to circulate and spatter, and the lake level has been relatively steady over the past day.
Low rates of seismicity are observed across the volcano, and long-term deformation trends show continued inflation beneath the summit and uppermost Southwest Rift Zone.
Gentle inflationary tilt continues at the summit. The summit lava lake at Halemaʻumaʻu continues to circulate and spatter. On Monday morning, the lake surface is roughly 27 m (90 feet) below the adjacent crater floor, and spattering in the lake was visible from HVO.
Low rates of seismicity in the summit caldera region are noted, with minor fluctuations in seismic tremor related to variations in lava lake circulation and spattering.
Sulfur dioxide emissions from the summit vent over the past week ranged from 3,500 to 7,000 metric tons per day.
HVO webcams show several incandescent vents on the floor of Puʻu ʻŌʻō crater, as usual. Tilt has been affected by recent rainfall. There are no significant changes in seismic activity at Puʻu ʻŌʻō.
Sulfur dioxide emission rate from all East Rift Zone vents when last measured on June 22 was about 350 metric tons/day.