Volcano Activity Updates
This past week, Kilauea Volcano’s summit lava lake level was relatively stable, ranging 82–98 feet below the vent rim, with fluctuations in concert with summit inflation and deflation. On the East Rift Zone, the 61g flow remained active, with lava entering the ocean near Kamokuna and surface breakouts downslope of Puu Oo. The 61g flows do not pose an immediate threat to nearby communities.
Mauna Loa is not erupt- ing. During the past week, small-magnitude earthquakes continued to occur beneath the volcano, primarily in the south caldera and upper Southwest Rift Zone, at depths less than 3 miles. 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.
One earthquake with three or more felt reports occurred on the Island of Hawaii during the past week: On July 24, at 9:46 a.m. HST, a magnitude-3.3 earthquake located 7 miles north of Kalaoa and 21 miles deep.
PleasevisittheHVO website(https://volcanoes.usgs.gov/hvo)for pastVolcanoWatcharticles,Kilaueadailyeruptionupdates,MaunaLoa weeklyupdates,volcano photos,recentearthquakesinfo,andmore. Callforsummaryupdates at808-967-8862(Kilauea) or808-967-8866(Mauna Loa).Emailquestions toaskHVO@usgs.gov.