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.

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Flow stops, but eruption goes on...
July 23, 1993

Regular readers of this column may have noticed that the last week's column ended in mid-sentence. This unfortunate situation was caused by an inadvertent mistake in layout. 

Tsunami, landslide cause most quake damage...
July 16, 1993

A great earthquake, with a magnitude of 7.8, struck northern Japan during the night on Monday, July 12. Most of the deaths were attributed to a tsunami that was generated by the earthquake, but other people were killed in a landslide and by falling buildings.

USGS
July 9, 1993

The 10-year-long eruption on Kīlauea's East Rift Zone continues with lava flowing from the vents on the south and west sides of Pu`u `O`o to the sea in underground tubes.
 

Lava from Kīlauea's East Rift Zone lessens...
June 18, 1993

The 10-year-long eruption on Kīlauea's East Rift Zone continues, with the only change being a decrease in eruption rate over the last few weeks. This decrease in rate correlates with the slowly deepening surface of the lava pond inside the Pu`u `O`o cone, as reported last week.

USGS
June 11, 1993

The largest earthquake in Hawai`i since January 26 occurred at 2:58 a.m. Tuesday. Many residents were awakened by the shaking from this magnitude-4.9 earthquake. The Jan. 26 earthquake, which occurred beneath Pahala, had a comparable magnitude. 

USGS
June 4, 1993

This week marks the anniversary of one of the largest of Mauna Loa's historic eruptions. On June 1, 1950, the last great eruption of Mauna Loa began just after 9:00 p.m. 

Eruption's flows continue, danger remains...
May 28, 1993

The eruption on Kīlauea's East Rift Zone continues with little change. The episode 51 and 53 vents on the southwest flank of the Pu`u `O`o cone continue to feed lava directly into a tube system that transports the lava to Palama Pali and beyond, to the ocean entries at Kamoamoa. 
 

USGS
May 21, 1993

A magnitude 3.0 earthquake was widely felt in the Hilo area on Thursday afternoon at 1:45 p.m. The earthquake was about 25 miles deep and was located offshore about 10 miles east of Hilo. 

USGS
May 15, 1993

Volcanoes around the world emit a variety of gases in different proportions, with the main components invariably being carbon dioxide, water, and sulfur dioxide. Minor components include, but are not limited to, hydrogen gas, carbon monoxide, hydrochloric acid, hydrofluoric acid, methane, and hydrogen sulfide.
 

USGS
May 14, 1993

May 18 marks the anniversary of the 1980 eruption of Mount St. Helens that laid waste to over 200 square miles of forest and killed 57 people, as well as thousands of wild animals and birds.
 

USGS
May 10, 1993

Kīlauea is famous for eruptions of the type we are now experiencing - quiet effusion of lava that makes the eruption approachable. However, not all of Kīlauea's eruptions have been so passive and approachable.

USGS
May 7, 1993

The 10-year-long eruption along Kīlauea's East Rift Zone continues with little change. Active flows travel underground to the ocean in lava tubes from the eruptive vents on the south and west sides of the Pu`u `O`o cone.