Deflation began yesterday at Kilauea’s summit, and the lava lake level dropped slightly. The East Rift Zone lava flow remains active northeast of Pu’u ‘O’o, but has not advanced significantly and poses no threat to nearby communities. Low levels of seismic activity continue across the volcano.
Deflation began yesterday at Kilauea’s summit and continues this morning, and the lava lake level dropped slightly over the past day. Spattering was also common in the lake over the past day, with brief fluctuations in lava level. Seismicity continues at a low background level, with several small earthquakes beneath the summit and Southwest Rift Zone, and scattered across the volcano’s south flank. Summit sulfur dioxide emission rates ranged from 2,900 to 6,100 metric tons/day for the week ending July 21.
Pu’u ‘O’o Observations:
There was no obvious change in activity at Pu’u ‘O’o , which hosts several incandescent, outgassing crater vents. Low levels of background seismicity continue. The sulfur dioxide emission rate from all East Rift Zone vents was about 400 tonnes/day when measurements were last possible on July 17, 2015.
‘June 27th Lava Flow’ Observations:
Webcam views show continued activity on the flow field. Active breakouts were scattered across a broad area extending from about 4 to 8 km (2.5–5 mi) northeast of Pu’u ‘O’o. The most distant breakouts are evident by the smoke plumes produced where they are creeping into the forest along the edge of the flow field.
July 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.
Photo : Bruce Omori.