Volcano Watch

The Hawaiian Volcano Observatory studies mainly the current activity of Hawai`i's volcanoes, and our eruption forecasts are limited to the short-term...

The last two weeks have been particularly busy on Kīlauea Volcano. On October 2, starting about 3:30 p.m., the tremor near Pu`u `O`o began to increase...

Over the years, scientists at the Hawaiian Volcano Observatory have developed good techniques for short-term eruption predictions (a few hours to a...

The U.S Geological Survey has recently published a new, full-sized map which defines the boundaries of nine lava flow hazard zones on the island. This...

Residents of Pahala felt a small earthquake (magnitude 3.7) at 10:22 p.m. on September 10. This earthquake was located a few miles northwest of the...

"With all the lava being erupted, is there a large, empty space within the Earth where the lava came from?" This is a frequent question answered by...

The episode 51 vents have been continuously active since early in the morning on July 27. The active vents are located just west of the Pu`u `O`o...

To the non-geologist, lava is hot, orange molten rock, or when cooled, smooth and gray, or black and jagged rock. However, to the geologist or...

Kīlauea's ongoing eruption from the episode 51 vents resumed on Aug. 15 after a four-day pause in the activity and reoccupied the tube system down to...

The Hawaiian Volcano Observatory's primary purpose is to understand how volcanic systems operate. All of the work we do in defining geological hazards...

The episode 51 vents once again became active early Monday morning after a brief pause since the previous Thursday morning. Prior to this last pause...

After being in continuous eruption since Sunday, June 21, the episode 51 vents adjacent to Pu`u `O`o on the East Rift Zone of Kīlauea Volcano finally...

The episode 51 vents adjacent to Pu`u `O`o on the East Rift Zone of Kīlauea Volcano have been in continuous eruption since before dawn on June 21...

The Hawaiian Volcano Observatory has joined forces with the University of Hawai`i to promote the collaborative study of volcanoes with the initiation...

The Hawaiian Volcano Observatory maintains a network of about 50 seismic stations on the Island of Hawai`i. The purpose of the network is twofold: to...

We will cover activity during the last two weeks, since we missed our deadline last week. The episode 51 vents on the west flank of Pu`u `O`o, which...

The volcanic hazards posed by Kīlauea Volcano are obvious to everyone who sees the active eruptions and visits Hawai`i Volcanoes National Park, where...

Moderate to large earthquakes located beneath the south flank of Kīlauea Volcano are commonly caused by seaward sliding of that part of the volcano...

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...