There was little change at Kilauea’s summit over the past day. Inflation switched to deflation, and the lava lake fell several meters. 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 switched from inflation to deflation mid-morning yesterday, and unsteady deflation has continued since. The lava lake dropped several meters with the deflation, leaving behind a well-developed veneer plastered to the vent wall. The lake surface was 51 m (167 ft) below the vent rim when measured this morning (July 17). Seismicity continues at a low background level, with a smattering of discrete events scattered around the summit and 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.
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 700 tonnes/day when measurements were last possible on June 19, 2015.
‘June 27th Lava Flow’ Observations:
Webcam views, though hampered by poor weather, 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 18, 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.