The activity on the Northeast Rift Zone continues at intense levels from both eruptive vents.
Fissure 3 continues to effuse the largest and most voluminous lava flows so far, traveling towards the Daniel K. Inouye Highway (Saddle Road) in the north direction. Lava flows decreased its advance between 07:00 AM and 12:30 PM local time today to a rate of 0.02 miles per hour (24 meters per hour). By 12:30 PM local time today, the lava flow front was located about 3.6 miles (5.8 km) from Saddle Road. The lava is gradually reaching a relatively flat area which will likely make it slow down. As this scenario happens, it will spread out and inflate. Preliminary estimates indicate that the lava flows may reach Saddle Road in two days.
Fissure 4 continues to spill out lava flows towards the northeast direction at a slower rate than the main lobe.
Fountaining activity continues at both fissure vents.
Pele’s hairs, tiny forms of pyroclastic material consisting of brown basaltic glass typical for hawaiian eruptions, occur in the Humu‘ula Saddle area.
The HVO seismic network continues to detect an ongoing tremor in currently active fissures, suggesting continued high effusion rates of magma.
This video from today’s morning overflight shows fissure 3, the dominant source of activity. Lava fountains are 20-25 meters in height (65-82 feet) and feed a lava flow moving to the northeast at ~130 meters per hour (0.08 miles per hour). #MaunaLoa https://t.co/dxPN2r2gaH pic.twitter.com/ZkIXuDAwRu
— USGS Volcanoes (@USGSVolcanoes) November 30, 2022
