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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Kīlauea's June 27th lava flow crosses AP‘A‘ā road west of Pāhoa Vil...
October 25, 2014

Kīlauea's June 27th lava flow crosses AP‘A‘ā road west of Pāhoa Vil...

Kīlauea's June 27th lava flow crosses AP‘A‘ā road west of Pāhoa Village, Hawai‘i. Dark smoke is from burning asphalt. Telephone pole upper right is wrapped in insulation then a barrier of cinder.

October 24, 2014

Close-Up of Flow Front Near Cemetery Rd.

This Quicktime movie shows a close-up view of the flow front, and its proximity to Cemetery Rd./AP‘A‘ā St. The transfer station is also shown.

October 24, 2014

Wide View of Flow Front Near Pāhoa

This Quicktime movie shows a wider view of the flow front, and pans to the right to show the flow's proximity to Pāhoa.

Small-scale map of June 27th flow in Kīlauea's East Rift Zone...
October 24, 2014

Small-scale map of June 27th flow in Kīlauea's ERZ

This small-scale map shows the June 27th lava flow in Kīlauea's East Rift Zone in relation to lower Puna. The area of the flow on October 22, 2014, at 1:50 PM is shown in pink, while widening and advancement of the flow as mapped on October 24 at 12:10 PM is shown in red. The latitude and longitude of the front of the narrow finger of lava advancing toward Pāhoa was 19.

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Large-scale map of June 27th flow in Kīlauea's East Rift Zone...
October 24, 2014

Large-scale map of June 27th flow in Kīlauea's ERZ

This large-scale map shows the distal part of the June 27th flow in relation to nearby Puna communities. The area of the flow on October 22, 2014, at 1:50 PM is shown in pink, while widening and advancement of the flow as mapped on October 24 at 12:10 PM is shown in red. Surface activity was mostly focused along the narrow finger of lava advancing toward Pāhoa, but other

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Small-scale map of June 27th flow in Kīlauea's East Rift Zone...
October 23, 2014

Small-scale map of June 27th flow in Kīlauea's ERZ

This small-scale map shows the June 27th lava flow in Kīlauea's East Rift Zone in relation to lower Puna. The area of the flow on October 20, 2014, at 1:00 PM is shown in pink, while widening and advancement of the flow as mapped on October 22 at 1:50 PM is shown in red. The latitude and longitude of the flow front was 19.48343, -154.96314 (Decimal Degrees; WGS84). All

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Large-scale map of June 27th flow in Kīlauea's East Rift Zone...
October 23, 2014

Large-scale map of June 27th flow in Kīlauea's ERZ

This large-scale map shows the distal part of the June 27th flow in relation to nearby Puna communities. The area of the flow on October 20, 2014, at 1:00 PM is shown in pink, while widening and advancement of the flow as mapped on October 22 at 1:50 PM is shown in red. While breakouts were scattered across the leading 2 km (1.2 mi) of the flow, most surface activity was

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October 22, 2014

Aerial Overview of Flow Front

This Quicktime movie provides an aerial overview of the flow front.

October 22, 2014

Pāhoehoe Flowing Over a Dirt Road

This Quicktime movie was captured at the flow front, and shows a small channelized portion of the pāhoehoe flow pouring over the dirt road embankment. Gas trapped within the flow is released via occasional small bubble bursts.

Large-scale map of June 27th flow in Kīlauea's East Rift Zone...
October 20, 2014

Large-scale map of June 27th flow in Kīlauea's ERZ

This large-scale map shows the distal part of the June 27th flow in relation to nearby Puna communities. The area of the flow on October 17, 2014, at 7:40 AM is shown in pink, while widening and advancement of the flow as mapped on October 20 at 1:00 PM is shown in red. Breakouts were scattered across the leading 2 km (1.2 mi) of the flow, and there were a few small

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Small-scale map of June 27th flow in Kīlauea's East Rift Zone...
October 20, 2014

Small-scale map of June 27th flow in Kīlauea's ERZ

This small-scale map shows the June 27th lava flow in Kīlauea's East Rift Zone in relation to lower Puna. The area of the flow on October 17, 2014, at 7:40 AM is shown in pink, while widening and advancement of the flow as mapped on October 20 at 1:00 PM is shown in red. The latitude and longitude of the flow front, which had moved no closer to Pāhoa, was 19.48277 , -154.

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October 19, 2014

Small Collapse and Explosion in Halema`uma`u Crater

This Quicktime movie shows the small explosion of spatter that occurred at Halema‘uma‘u on Sunday, October 19. Spatter landed around the Halema‘uma‘u Overlook (closed to the public).

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USGS
April 1, 2004

If a sinkhole collapses in your back yard, where and how did the stuff disappear? Did an underground opening already exist (such as a lava tube), did something "dissolve" away (such as rotting vegetable matter), or did a kind of conveyer belt remove material and take it somewhere else (such as moving magma)?

USGS
March 25, 2004

March 25 marks the 20th anniversary of the most recent eruption of Mauna Loa. The eruption was preceded by roughly three years of increasing numbers of shallow- and intermediate-depth earthquakes. A marked increase in earthquake activity occurred nearly six months before the eruption.

This is a photo of a bright glow above flow field as seen from end of Chain of Craters Road.
March 22, 2004

Bright glow above flow field as seen from end of Chain of Craters Road

USGS
March 18, 2004

When we think of the negative impact that volcanoes have on people, the local geographic area of the eruption generally comes to mind. Ash, lava, and mudflows are all destructive and hazardous for people who live close to volcanoes. 

USGS
March 11, 2004

The worst volcanic disaster of the 20th century occurred in 1902 on Martinique, an island in the French West Indies.

USGS
March 4, 2004

About 2.5 km (1.5 miles) down the Hilina Pali Road in Hawai`i Volcanoes National Park are two tiny kipuka that help geologists decipher obscure parts of Kīlauea's past 1,500 years.