There was weak deflation at Kilauea’s summit, and the lava lake behaved in typical fashion with little overall change in level. 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.
Kilauea’s summit deflated a small (and perhaps insignificant) amount over the past day. The lava lake experienced the usual small fluctuations but there was no overall change in level. Seismicity continues at a low background level, with several small earthquakes clustered south of the summit caldera, and a handful of other events scattered along the rift zones and across the volcano’s south flank. Summit sulfur dioxide emission rates ranged from 2,300 to 4,600 metric tons/day for the week ending July 14.
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 700 tonnes/day when measurements were last possible on June 19, 2015.
‘June 27th Lava Flow’ Observations:
Webcam views show breakouts scattered across a broad area extending from about 1 to 8 km (0.6–5 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 21, 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.