A narrow finger of lava along the southern edge of the main flow has now become the leading edge of the flow and advanced about 100 yards since Tuesday, Hawaii County Civil Defense officials said after an overflight Wednesday.
The original flow front also remains active and advanced about 25 yards since Tuesday.
The lava flow is still about 0.6 miles from Apaa Street, near the Pahoa Transfer Station on the outskirts of town.
There was very little burning activity and smoke conditions were moderate winds with a south wind causing both smoke and vog to extend across the lower Puna to Hilo areas.
The lava activity is not an immediate threat to homes and no evacuations have been ordered.