Seismic activity increased on Mauna Loa's northwest flank on December 4, 2020, with M4.1 earthquake and clusters of small, shallow earthquakes occurring closely in time and location. The volcano is not erupting but the rates of deformation and seismicity have…
USGS seismologists have detected deep long-period earthquakes beneath the dormant Mauna Kea volcano in Hawaii at depths of about 20 to 25 km (12 to 15 miles) occurring with surprising regularity every 7 to 12 minutes. While low-frequency earthquakes are not unusual,…
New research reveals that Hawaii's Pūhāhonu volcano is the largest and hottest shield volcano on Earth, although it is barely visible as only a portion of its tip is exposed above the seafloor. Pūhāhonu, a Hawaiian word which means "turtle surfacing for…
The USGS Hawaii Volcano Observatory (HVO) reported increased seismic activity at the submarine Lōʻihi volcano in Hawaii from May 11 to 12, 2020. More than 100 earthquakes were detected, but USGS noted that there is no indication that a submarine eruption has…
Earthquake and ground deformation rates at Mauna Loa Volcano have exceeded long term background levels over the past several months, forcing the Hawaiian Volcano Observatory to raise the Alert Level to Advisory and the Aviation Color Code to Yellow. All communities…
Activity at Hawaiian Mauna Loa volcano has risen to levels comparable to a higher period of activity between 2014 and 2017, HVO scientists said. The last eruption at the volcano took place in 1984. While there is no cause for alarm, those signs of higher activity…
While Kīlauea Volcano in Hawaii is not erupting at the moment and rates of seismicity, deformation, and gas release have not changed significantly over the past week, deformation signals are consistent with refilling of the middle East Rift Zone (ERZ) and hazards…
The lull in activity at Kīlauea Volcano continues. HVO lowered the Alert Level for ground-based hazards from WARNING to WATCH, on August 17, but the Aviation Color Code remains at Orange. The summit has been quiet since the last collapse event on August 2. This…
The current eruption at Kilauea is unprecedented in scope and size in the past 200 years, the Hawaiian Volcano Observatory deputy scientist-in-charge Steve Brantley said Tuesday, July 16, 2018. "What we are observing now is unprecedented in the past 200 years…
The eruption of Kilauea volcano in the lower East Rift Zone (LERZ) continues with no significant change. Fountains from the fissure 8 spatter cone, now about 55 m (180 feet) continue to supply lava to an open channel that travels about 13 km (8 miles) to the sea….
