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Image: Hawaiian Monk Seal (Monachus schauinslandi)
June 9, 2007

Hawaiian Monk Seal (Monachus schauinslandi)

Hawaiian Monk Seal on a sandy beach near the western tip of the Hawaiian island of Moloka´i.

Image: Sunrise on a Hawaiian Beach 2
June 9, 2007

Sunrise on a Hawaiian Beach 2

Just after sunrise on a beach in eastern Maui.

Image: Sunrise on a Hawaiian Beach 1
June 9, 2007

Sunrise on a Hawaiian Beach 1

Just after sunrise on a beach in eastern Maui.

Image: Sunrise on a Hawaiian Beach 2
June 9, 2007

Sunrise on a Hawaiian Beach 2

Just after sunrise on a beach in eastern Maui.

October 28, 2006

Long-term Change at MLK Vent

(April 2, 2004, to October 28, 2006) A time-lapse camera was poised on the southwestern flank of Pu‘u ‘Ō‘ō cone from early 2004 through mid-2007. This location overlooked the "Martin Luther King" (MLK) vent, in the foreground (~70 m away), and provided a distant view of the top of the "Prince Kūhiō Kalaniana‘ole" (PKK) tube system—the Episode 55 lava tube system that

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Active lava delta on south coast of Kīlauea, Hawai‘i
October 24, 2006

Active lava delta on south coast of Kīlauea, Hawai‘i

This lava delta at Lae‘apuki added about 24 hectares (60 acres) of new land to the southeast coast of Kīlauea in 2006, but 6.5 hectares (16 acres) slid into the sea in 2007. White plume marks location of lava entering the sea through a tube whose location is shown by blueish fume in middle right. The delta is covered with many recent surface flows (light gray) that escaped

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October 16, 2006

East Lae‘apuki shatter ring

October 16 , 2006, 06:20:23 to 08:00:22) This is another movie showing a shatter ring in action (see "Shatter ring on the PKK lava tube", 03-20-06). This shatter ring, about 55 meters across and 2.5 meters high, grew between late September and mid-October, 2006, as a result of frequent breakouts from the PKK lava tube just inland from the East Lae‘apuki lava delta, like

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September 22, 2006

Lava breakout from the PKK lava tube at East Lae‘apuki

(Sept 21, 2006, 18:00:02 to 00:00:05) Between the morning of September 20 and the evening of September 22, 2006, there were 10 separate breakouts from the PKK lava tube. Each originated about 50 meters inland from the older sea cliff bounding the inboard edge of the East Lae‘apuki lava delta. This movie shows the most spectacular breakout of the series, which fed up to at

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Active lava delta, Kīlauea Volcano, Hawai‘i...
September 20, 2006

Active lava delta, Kīlauea, Hawai‘i

Lava pours over the former sea cliff at East Lae‘apuki onto an active lava delta (left of cliff). The lava broke out from a lava tube just inland of the sea cliff (right of photograph). Lava is also pouring over the cliff within a tube, indicated by the blueish fume rising from cliff behind the lava streams, and entering the ocean as shown by the white laze plume on edge

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Researcher measures the wing of a palila nestling
July 18, 2006

Researcher measures the wing of a palila nestling

A very young palila nestling is given unique color bands and it's body measurements are taken on Mauna Kea volcano, Hawai‘i Island, Hawai‘i. In a multi-decadal study of palila and the factors influencing their population, Dr. Paul Banko has studied the diet, movement, and nesting behavior of these critically

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June 24, 2006

Lava Breakout from PKK Lava Tube at East Lae‘apuki

(June 24, 2006, 19:00:53 to June 25, 2006, 01:00:55) After sunset on June 24, 2006, lava burst from the PKK lava tube about 50 meters inland from the older sea cliff bounding the inboard edge of the East Lae‘apuki lava delta. Lava reached the sea cliff and began cascading over it in less than a minute, and it spread quickly across the lava delta below. The cascade was

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June 3, 2006

Gas Pistons Within Drainhole Vent at Pu‘u ‘Ō‘ō

(June 2, 2006, 18:30:02 to June 3, 2006, 02:00:03) Gas-pistoning is an interesting phenomenon seen at Kīlauea and some other basalticvolcanoes. It is caused by the accumulation of gas near the top of the lava column within a volcanic vent (Swanson and others, 1979). The shallow accumulation of gas causes the lava surface to rise (the "piston"). Eventually, the gas breaches

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USGS
October 15, 1998

The major part of each Hawaiian volcano lies below sea level, which creates a logistical nightmare: How does one study the submarine slopes?

USGS
October 8, 1998

Scientists know more about the history and inner dynamics of Kīlauea than they do about most other volcanoes in the world. Yet a major portion of the volcano has received little attention.
 

USGS
October 1, 1998

A 1,262-m-deep (4,139-ft-deep) research hole was drilled in the southwest corner of Kīlauea's caldera in 1973. At the time, this was the deepest hole in the summit region of any active volcano on earth.

USGS
September 21, 1998

Kīlauea Volcano's summit has been slowly subsiding since 1983, the year that the ongoing Pu`u O`o-Kupaianaha eruption started. This broad and gentle cone-shaped downwarping of the summit is centered about 1,500 m (one mile) south of Halema`uma`u Crater, where the ground's surface is now 1.3 m (4.3 ft) lower than it was in 1983.
 

USGS
September 17, 1998

With this article, "Volcano Watch" broadens its scope to include items of biological interest related to Hawai`i volcanoes. Once every two months, the column will focus on topics that relate to the interplay of biological resources with volcanic activity. 

USGS
September 10, 1998

Rapid landscape changes take place during Kīlauea's east rift zone eruption. Visitors to the coastal plain six months ago could have watched lava spilling from tubes at two major ocean entries south of Royal Gardens. By July 11, the eastern entry, at Waha`ula, had ceased. 

USGS
September 3, 1998

The Chain of Craters marks the location of Kīlauea's upper east rift zone. The chain reaches southeastward from the summit caldera and then gradually bends into the overall east-northeast trend of the rift zone. 

USGS
August 27, 1998

You hear a low rumbling sound; the walls of your house shake a little; objects on the shelves skip around, maybe even fall off the shelf. Was that an earthquake?
 

USGS
August 20, 1998

Groups of students of all ages frequently visit the U.S. Geological Survey's Hawaiian Volcano Observatory while they are on an excursion to Hawaii Volcanoes National Park. When prior arrangements are made, we escort them around our facilities and give a short talk on our mission and program.
 

USGS
August 13, 1998

Geology is an inexact science, and sometimes studying volcanoes seems like a game of chance. This is particularly true for those who study the way lava flows.
 

USGS
August 6, 1998

In 1790 a group of Hawaiian warriors in the Ka`u Desert was killed by an eruption of hot gas and flying rocks that originated from Kīlauea caldera. Scientists have studied the layers of tephra visible in gullies along the southwest rift zone in Hawai`i Volcanoes National Park and have concluded that this event was the only major explosion of the last 2000 years.