The lava lake at Kilauea’s summit is still active. Summit tiltmeters recorded a brief deflationary tilt signal overnight. The East Rift Zone lava flow northeast of Pu’u ‘O’o is also active, and all breakouts remain within 8 km (5 mi) of the vent. A large breakout occurred from the lava tube on the north side of Pu’u ‘O’o overnight, and lava erupted in the bottom of Pu’u ‘O’o crater. None of the lava flows currently pose a threat to communities but are being monitored closely. Low levels of seismic activity continue across the volcano.
Kilauea’s summit inflated through the day yesterday and then switched to deflation overnight. Deflation stopped early this morning, and tilt has been flat since. Seismic tremor continues with episodic bursts associated with spattering on the surface of the summit lava lake, which remains active. This morning, the depth to the surface of the lava lake is about 58 m (190 ft) below the floor of Halema’uma’u. Seismicity within the volcano remains at a low level. An earthquake with a preliminary magnitude of 3.8 occurred at 4:39 AM this morning beneath Kilauea’s south flank. Summit sulfur dioxide emission rates ranged from 2,000 to 2,200 metric tons/day for the week ending August 18.
Pu’u ‘O’o Observations:
There was no change at Pu’u ‘O’o through the day yesterday, but early this morning lava began to erupt from a vent on the northeast side of the crater floor. The flow was still slowly spreading within the crater this morning. Seismic activity remains low. The sulfur dioxide emission rate from all East Rift Zone vents was about 390 tonnes/day when measurements were last possible on August 13, 2015.
June 27th Lava Flow Observations:
Webcam views overnight show continued activity on the flow field northeast of Pu’u ‘O’o. These flows are active within 8 km (5 mi) of Pu’u ‘O’o, and some are marked by smoke plumes where lava is creeping into the forest. At 1 AM, a large breakout occurred on the northeast flank of Pu’u ‘O’o from the lava tube supplying the distant flows. This breakout was still feeding a channelized flow to the north this morning. It is too soon to tell how important this breakout is or if it will affect the vigor of the distant flows to the northeast.
August 28, 2015. Kilauea, Hawai :
19 ° 25’16 « N 155 ° 17’13 » W,
Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE
Source : HVO
Photos : Bruce OMORI