Unified Interior Regions

Hawaii

The Pacific Region has nine USGS Science Centers in California, Nevada, and Hawaii. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

States L2 Landing Page Tabs

Filter Total Items: 2,089
USGS
January 10, 1992

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 level of the tube downslope from the Kupaianaha vent. This is the same area that has had active flows for the last several weeks. Tremor continues at low levels in the upper East Rift, indicating that magma continues to move in the rift zone. 
 

Eruption's 10th year begins...
January 3, 1992

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 fissures opened in, and downrift of Napau Crater. 
 

Scientists predicting lava flow shift from Kupaianaha vent...
December 27, 1991

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 Kupaianaha vent has decreased slowly since April 1991, with a short sharp decrease and subsequent increase during and after episode 49 in November.

Earthquake swarm felt at Lo`ihi seamount...
December 20, 1991

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, only a few have magnitudes greater than 3.0, roughly the threshold for felt earthquakes. 

Volcano Watch (no. 7)...
December 13, 1991

Kīlauea Volcano continues to erupt from the Kupaianaha vent on the East Rift Zone. The episode 49 fissure that opened between Pu`u `O`o and Kupaianaha on November 8 remains inactive.

USGS
December 8, 1991

Kīlauea Volcano continues to erupt from the Kupaianaha vent on the East Rift Zone, while the episode 49 fissure that opened between Pu`u `O`o and Kupaianaha on Friday, Nov. 8, has shut down in the last few days. 

Volcano Watch (no. 5)...
November 29, 1991

Kīlauea Volcano continues to erupt from both the Kupaianaha vent on the East Rift Zone and from the new episode 49 fissure located between Pu`u `O`o and Kupaianaha. The output of lava from each vent continues to decline, with the output from Kupaianaha nearly stopped. 

Volcano Watch (no. 4)...
November 22, 1991

Kīlauea Volcano continues to erupt from both the Kupaianaha vent on the East Rift Zone and from a new fissure that opened the morning of November 8th between Pu`u `O`o and Kupaianaha. 
 

Volcano Watch (no. 3)...
November 15, 1991

The U.S. Geological Survey's Hawaiian Volcano Observatory reports that Kīlauea Volcano continues to erupt from both the Kupaianaha vent on the East Rift Zone and from a new fissure that opened between Pu`u `O`o and Kupaianaha on [Friday] Nov. 8 before dawn. 
 

Volcano Watch (no. 2)...
November 8, 1991

The U.S. Geological Survey's Hawaiian Volcano Observatory reports that Kīlauea Volcano continues to erupt from the Kupaianaha vent on the East Rift Zone and from a new fissure that opened Friday morning between Pu`u `O`o and Kupaianaha.

Volcano Watch (no. 1)...
November 3, 1991

The U.S. Geological Survey's Hawaiian Volcano Observatory reports that Kīlauea Volcano continues to erupt from the Kupaianaha vent on the East Rift Zone. Active flows are located along the western edge of the flow field between the 1,100- and the 60-foot elevation.

Mauna Loa 1975 Eruption...
July 6, 1975

Photos from the Mauna Loa 1975 eruption.