Unified Interior Regions

Hawaii

States L2 Landing Page Tabs

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January 17, 2003

Wrinkling of thin crust

Video shows wrinkling of thin crust at bottom of gentle slope. Note the concave-upstream shape of the wrinkles. Stream is about 1 m wide.

January 17, 2003

Lava runs from under crust along edge of inflating flow

Lava runs from under crust along edge of inflating flow. Flakes of crust, heated by the emerging lava, spall off and fall onto surface of lava. Width of view, about 75 cm.

January 17, 2003

Two streams break from under inflating flow

Two streams break from under inflating flow. Note how crust forms on closer stream and becomes wrinkled where lava runs into barrier. Each stream is about 3 m long.

January 17, 2003

Slow moving lava

Lava slowly rafts plate of crust downstream. Width of plate of crust, about 1 m.

January 14, 2003

Sheet of lava pouring from inflating flow

Sheet of lava pouring from inflating flow. Note wrinkling, moving crust.

January 14, 2003

Lava pouring from inflating flow

Same sheet of lava pouring from inflating flow but seen from different angle.

January 14, 2003

Single toe in action

Single toe in action. Note concentric wrinkes forming at bottom of view.

January 14, 2003

Low-angle view of fluid toe spreading out

Low-angle view of fluid toe spreading out. Note moving dark crust on distant part of toe.

January 14, 2003

Rapidly flowing single toe of lava

Rapidly flowing single toe of lava at front of flow 440 m seaward of Paliuli. Other videos on this day focus on similar toes. Sound was turned off during the imaging. For scale, flowing lava in all clips is 1-3 m wide.

January 7, 2003

Channeled cascade on Paliuli

Channeled cascade on Paliuli. Other videos on this day focus on front of this cascade. Wind noise in this and other clips is obvious, but listen for sounds of pieces of crust scraping against one another or across ground. For scale, flow front in all clips is 1-1.5 m high.

January 7, 2003

Fluid lava leaks from inside crusted front of cascade

Fluid lava leaks from inside crusted front of cascade.

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USGS
June 4, 1998

Billowing clouds of steam rising from two discrete locations along the Kamokuna-Waha`ula coastline are often the only reminders we have of Kīlauea Volcano's near-constant effusion of lava into the sea.

USGS
May 28, 1998

The gravitational attraction of the Sun and the Moon produce the familiar ocean tides and the less familiar earth tides. Why are volcanologists interested in earth tides? Earth tides are cyclical, small, and slow ground movements that we use to calibrate and test sensitive volcano deformation- monitoring instruments. They might also trigger volcanic events.
 

USGS
May 21, 1998

Precisely 74 years ago today, the final chapter of one of Kīlauea's most alarming displays of volcanic power came to a close. Halema`uma`u, the fire pit nestled in Kīlauea's summit caldera, ended a 10-day-long outburst of violent steam explosions on May 24, 1924.
 

USGS
May 14, 1998

The story is told of how Maui snared the sun, holding it hostage atop Haleakalā until he slowed its passage across the sky. One result of this slow burn is a barren, rocky landscape devoid of soil or vegetation. Geologically speaking, the devastation resulted as numerous cinder cones and fissures erupted lava that flowed across the crater floor. How young are these flows?

USGS
May 7, 1998

The announcement last week that astronomers at Keck Observatory had looked back 12.3 billion years in time was astounding. When you think about it, though, it is pretty amazing that we can determine the age of any natural event that took place before written records, whether it be 12.3 billion years or a few hundred. How is this done?
 

USGS
April 30, 1998

As April draws to a close, so ends Tsunami Awareness Month in the State of Hawai`i. Tsunami Awareness Month featured programs and events coordinated among a number of government and private-sector organizations in order to increase awareness and understanding of the hazards posed by tsunamis.

USGS
April 23, 1998

The eruption of 1942 was noteworthy for several reasons. (1) It was declared a secret so the press was not allowed to publicize the event. (2) This was the second time lava diversion was tried on an eruption of Mauna Loa. (3) The volcanologists were able to predict the timing and place of the eruption.
 

USGS
April 17, 1998

Surges Interspersed Among Steady-state Activity

USGS
April 16, 1998

Govenor Ben Cayetano's proclamation of April as "Tsunami Awareness Month" in Hawai`i is a timely one, for a generation of residents has grown up oblivious of the destructive force of these waves. 

USGS
April 9, 1998

In some regards, monitoring an active volcano is easy; the constant bustle keeps a watcher on his or her toes. But what if a volcano hasn't erupted in 200 years?
 

USGS
April 2, 1998

As we all know, there are no facts about the future. We cannot know for sure what will happen tomorrow, much less next year or 1,000 years from now. How, then, can we be so bold as to guess where the next volcano will form in Hawai`i, perhaps 100,000 years or more down the road?
 

USGS
March 26, 1998

While watching the Olympics a few weeks ago, I started wondering how our lava flows would place in typical competitions. Of course, it wouldn't be quite as simple as setting up a course, getting an eruption to happen at a convenient time at the starting point, and accurately timing the result.