(ABOVE PHOTO) Hawaii County Civil Defense message for Sunday with video from Friday flyover by Mick Kalber (Tropical Visions Video) aboard Paradise Helicopters, maps by USGS HVO

NEWS BRIEFS

• The lava flow front continues to be active and has advanced approximately 100 yards since yesterday. Its traveled 440 yards since it resumed its advance this past Wednesday. Civil defense says the flow does not pose an immediate threat to area communities and no evacuation is needed at this time.
• South wind this morning pushed vog and smoke across lower Puna to Hilo.

PRIMARY SOURCES

An aerial survey performed this morning shows that the flow front continues to be active and has advanced approximately 100 yards since yesterday. The narrow flow front is moving along the tree line and the burning activity with that is producing a significant amount of smoke. There is no brush fire threat at this time and the burning is limited to the edges of the flow only. Due to a light south wind this morning the vog and smoke conditions were moderate to heavy across lower Puna to Hilo.

Current flow activity does not pose an immediate threat to area communities and no evacuation is needed at this time. Area residents will be given adequate notice to safely evacuate should that be necessary.

The Railroad Emergency Route is NOT open to the public at this time. The public is reminded that no public vehicles, persons, or activity is allowed within the emergency route until the route is opened.

The public is also reminded that the flow is not visible and cannot be accessed from any public areas. Access to the Kaohe Homesteads subdivision will remain restricted to area residents only.

We would like to thank everyone for your patience and understanding and your cooperation and assistance is greatly appreciated.Hawaii County Civil Defense on Sept. 27

The June 27th lava flow remains active. Based on this morning’s observations by Civil Defense the flow has advanced approximately 90 m (100 yards) since yesterday. Since the flow resumed its advance this past Wednesday, it has moved downhill by approximately 400 m (440 yards) .

Puʻu ʻŌʻō Observations: There was little net change in ground tilt at Pu’u O’o over the past day. Glow was visible overnight above several outgassing openings in the crater floor. The most recent sulfur-dioxide emission-rate measurement for the East Rift Zone was 550 tonnes per day (from all sources) on September 25, 2014. Seismic tremor is low and constant.

Summit Observations: Deflationary tilt at Kīlauea’s summit continues this morning. At the summit vent, the level of the lava lake decreased over the past day and was roughly 50m (164 ft) below the Overlook crater rim. There was no major change in seismicity on Kilauea over the past day; seismic tremor at the summit remained low and varied with changes in spattering on the surface of the lava lake. GPS receivers spanning the summit caldera recorded about 5 cm (2 in) of extension between early May and early July. Since then, little significant extension or contraction has occurred. USGS Hawaiian Volcano Observatory on Sept. 27

USGS HVO photo shows breakout of pāhoehoe lava on the upslope part of the June 27th flow. (Oct. 3)

USGS HVO: This map uses a satellite image acquired in March 2014 (provided by Digital Globe) as a base to show the area around the front of the June 27th lava flow. Surface activity comprised of Pāhoehoe toes and lobes were scattered across the leading edge of the flow. Lava continued to advance downslope and extended the front by about 270 m (295 yards) since Wednesday, October 1, 2014.