Kīlauea Volcano Activity Update: Sept. 14, 2017
This past week, Kīlauea Volcano’s summit lava lake level fluctuated with summit inflation and deflation and ranged about 102 to 175 feet below the vent rim.
On the East Rift Zone, the 61g flow remained active, with lava entering the ocean near Kamokuna and surface breakouts downslope of Pu‘u ‘Ō‘ō.
Widening cracks and slumping on the Kamokuna lava delta indicate its instability and potential for collapse.
The 61g flows do not pose an immediate threat to nearby communities.
Mauna Loa is not erupting.
GPS measurements continue to show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone. No significant changes in volcanic gas emissions were measured.
During the past week, small-magnitude earthquakes continued to occur beneath the summit caldera and upper Southwest Rift Zone, primarily at depths less than 3 miles, with some additional deeper events (3 to 8 miles).
No earthquakes were reported felt in the Hawaiian Islands during the week ending Sept. 14, 2017.