Kilauea, Hawai: ongoing activity .

 

 

Activity Summary:
There have been no notable changes in the summit and East Rift Zone eruptions of Kilauea Volcano, with the exception of the continuing fluctuations in the level of the summit lava lake. At the East Rift Zone eruption site, surface flows are still active within about 8 km (5 mi) of Pu’u ‘O’o.

 

Summit Observations:
Inflationary tilt at the summit continues this morning, as part of the most recent deflation – inflation (DI) event. DI cycles represent typical behavior for the Kilauea summit. The level of the lava lake surface within the Overlook crater rose approximately 10 m over the past day, in concert with the inflationary tilt, and as of this morning, is 40-45 m below the new rim of the Overlook crater. Seismicity rates beneath the Kilauea summit continue at background levels, with a slight elevation in activity on the Southwest Rift Zone. Sulfur dioxide emission rates ranged from 3,000-6,000 tonnes/day for the week ending June 16.

Pu’u ‘O’o Observations:
No significant changes noted. Seismicity rates are at background levels. The sulfur dioxide emission rate from all East Rift Zone vents was about 725 tonnes/day when last measured on June 19, 2015. Yesterday, VLF measurements on the June 27th lava tube returned an average cross-sectional area of the lava stream of ~ 4 square meters (4.8 square yards), similar to last week’s measurement.
June 27th Lava Flow Observations:
An HVO overflight yesterday morning confirmed that active lava breakouts continue within an area extending about 8 km (5 mi) northeast Pu’u’O’o, with scattered active areas along the length of the flow. There has been no significant net advancement of activity over the past month. This morning’s webcam images show no significant change from yesterday’s observations.

21/06/2015.
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 : HVO, Bruce Omori .