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August 22 2017
Current Volcano Alert Level: WARNING
Current Aviation Color Code: ORANGE
The eruption of Kīlauea volcano continues at two locations. In the park,
the vent within Halema'uma'u Crater is easily viewed from the overlook
at the Jaggar Museum. The second location is the Pu'u 'Ō'ō vent located
10 miles (16km) east of the summit, on the remote east rift zone of
Kīlauea. This area is not accessible to the public.
Activity Summary: Eruptive activity continues at Kīlauea Volcano’s
summit and East Rift Zone. Seismicity and deformation rates throughout
the volcano remain at low levels, with an inflationary trend in tilt recorded
at the summit during the past 18 hours. Scattered lava flow activity
continues on the June 27th lava flow field within about 6 km (4 mi)
northeast of Puʻu ʻŌʻō. These flows currently pose no threat to nearby
Summit Observations: The lava lake remains active within the
Halemaʻumaʻu Overlook crater. Summit tiltmeters are recording an
inflationary trend in tilt this morning that started yesterday afternoon. The
level of the lava lake yesterday at 12:20 p.m. HST was about 41 m (135
feet) below the crater rim, but has fluctuated by several meters (yards)
since the measurement was made. Seismic tremor has been weakly
variable, reflecting small changes in the vigor of spattering on the lava
lake. For the period December 30, 2015 – January 5, 2016, the summit
sulfur dioxide emission rate averaged 6,200 metric tons/day.
Puʻu ʻŌʻō Observations: The active lava flow southeast of Puʻu ʻŌʻō
continues to move across the coastal plain on Kīlauea's south flank.
Lava Flow Observations: Webcam images show continued surface flow
activity on the June 27th flow field, with smoke plumes where lava is
igniting forest. The most distal active lava is within 6 km (4 mi) northeast
of Puʻu ʻŌʻō and is not currently threatening any nearby communities.
East Rift Zone vents and flow field Lava flows from the June 27 breakout
have advanced into Pāhoa and may threaten residential areas depending
on their level of activity and advance rate. Near-vent areas could erupt
or collapse without warning with spatter and/or ash being wafted within
the gas plume. In addition, potentially-lethal concentrations of sulfur
dioxide gas may be present within 1 km downwind of vent areas. Active
lava flows within forested areas can produce methane blasts capable of
propelling rocks and other debris into the air. All recently active lava
flows are within Hawaiʻi Volcanoes National Park and adjacent State
land managed by the Department of Land and Natural Resources or the
Office of Hawaiian Affairs.