Volcano Watch

The episode 51 vents on the west flank of Pu`u `O`o, which stopped erupting on May 22, began erupting again on Wednesday morning sometime shortly...

The episode 51 vents on the west flank of Pu`u `O`o which were inactive for six days starting Tuesday, April 28, were in continuous eruption since...

The episode 51 vents on the west flank of Pu`u `O`o were inactive most of this past week. Last Sunday afternoon, the flows had advanced about one mile...

The eruption at the episode 51 vents on the west flank of Pu`u `O`o continued without interruption again this week. The eruption is little changed...

The eruption at the episode 51 vents on the west flank of Pu`u `O`o continued without interruption this week. A lava pond has formed just west of the...

Last week we noted that, based on the activity in the pond inside Pu`u `O`o cone, the lull in activity at the episode 51 vent was probably just...

The eruption at the episode 51 vent slowed dramatically on Thursday at about 2:00 p.m. and by Friday morning there was no eruptive activity at the...

With the wisdom of hindsight, we have concluded that the continuing episodic eruptive activity from the vent on the west flank of the Pu`u `O`o cone...

Episode 51 of the nine-year long eruption along Kīlauea Volcano's East Rift Zone stopped by 4:00 p.m. Thursday afternoon. As we forecast last Sunday...

The nine-year long eruption along the East Rift Zone of Kīlauea Volcano took two dramatic turns this past week, but ended up nearly where it started. ...

Episode 50 began about 7:30 p.m. on Feb. 17 from a small fissure just southwest of the Pu`u `O`o cone. By the 19th, only about 100 feet of the...

Since at least April 1991, the volume of lava erupted from the Kupaianaha vent has steadily declined. Since late November, the remaining lava flows...

The internal workings of Mauna Loa Volcano will be probed from space starting this week by a satellite system designed to track military vehicles...

Kīlauea is the world's most active volcano. About 70% of Kīlauea's surface is covered by lava less than 500 years old and over 90% is covered by lava...

A magnitude 3.8 earthquake occurred about 15 miles beneath Mauna Kea Volcano at 1:48 a.m. on January 21. Similar deep earthquakes occur persistently...

The most notable event on Kīlauea Volcano this past week was a swarm of small earthquakes, mainly on January 13. This swarm included two earthquakes...

The eruption on the East Rift Zone of Kīlauea Volcano continues with low-volume, steady effusion of lava from the breakout at about the 1,900-foot...

Nine years ago on January 3, 1983, the ongoing eruption on the East Rift Zone of Kīlauea Volcano began when a discontinuous 3.7-mile long series of...

Kīlauea Volcano continues to erupt from the Kupaianaha vent on the East Rift Zone. The volume of lava moving down the Waha`ula lava tube from the...

During a typical week, 300-400 located earthquakes occur beneath the Big Island, as recorded on the U.S. Geological Survey's seismic network. However...