Tag Archive | "volcano"

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Pu‘u ‘Ō‘ō Crater floor collapses, increased earthquake activity in Puna

The Hawaiian Volcano Observatory reports increased shallow earthquake activity in the Puna district below Kilauea volcano in the area between Pu’u O’o and Pahoa-Kalapana Road (Route 130).

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Beginning around midnight on Saturday, April 21, Kīlauea Volcano's summit lava lake rose high enough that lava briefly spilled onto the floor of Halema‘uma‘u. Since then, additional overflows occurred in four pulses on April 22–23. The largest one occurred during the fourth pulse, which started at 6:30 a.m. today (Monday, April 23) and continued for about three hours, covering about a third of the crater floor with shiny black lava. Early this morning, HVO geologists (shown here) used a laser range-finder to measure the depth to the lava lake surface at its peak level. The silhouettes of HVO and Hawai‘i Volcanoes National Park's Jaggar Museum are visible on the rim of Kīlauea's summit caldera (center high point). Mauna Loa can be seen in the far distance (left). The area around Halema‘uma‘u remains closed to the public due to ongoing volcanic hazards, including high sulfur dioxide gas emissions and unexpected rockfalls and explosions. Photo taken Monday, April 23, 2018 courtesy of U.S. Geological Survey

Volcano Watch: Kilauea activity update for April 26, 2018

This past week, Kīlauea Volcano’s summit lava lake level fluctuated with summit inflation and deflation, eventually rising high enough to overflow onto the floor of Halemaʻumaʻu multiple times beginning Saturday, April 21.

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The slowly rising lava lake at Kīlauea's summit was very close to the rim of the Overlook crater, and floor of Halema‘uma‘u Crater. This afternoon the lava lake was roughly 6 m (20 feet) from the rim. This photo was taken from the Jaggar Museum overlook, which had superb views Saturday (April 21). Photo taken Saturday, April 21, 2018 courtesy of U.S. Geological Survey

Halemaumau’s lava lake rises providing great views this weekend

The Halemaumau Overlook Crater lava lake level was about 20 feet below the rim of Overlook crater Saturday afternoon (April 21), a rise of about 13 feet from the day before.

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An HVO geologist photographs an active pāhoehoe breakout after taking a lava sample nearby. Photo taken Friday, April 13, 2018 courtesy of U.S. Geological Survey

Volcano Watch: Kilauea activity update for April 19, 2018

On the East Rift Zone, the 61g lava flow remained active with breakouts on the upper part of the flow field.

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‘Alalā released on Hawaii Island in 2017 appear to thrive

The eleven young ‘Alalā living in the Pu‘u Maka‘ala Natural Area Reserve on the Island of Hawai‘i continue to thrive, showing increased natural behaviors, foraging on native plants, and even challenging the occasional ‘Io, or Hawaiian Hawk. Conservationists are cautiously optimistic about the birds’ continued success in native habitat and are working together with researchers […]

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Ballistics from the explosion impacted a few of the solar panels which power the monitoring equipment on the rim of Halema‘uma‘u. Photo taken Friday, April 6, 2018 courtesy of U.S. Geological Survey

Volcano Watch: Kilauea activity update for April 12, 2018

At 10:28 a.m. Friday morning (April 6), rock falls from the Overlook crater wall into Kīlauea Volcano’s summit lava lake triggered an explosive event which hurled spatter (molten lava fragments) and lithic blocks (older crater wall) onto the rim

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Volcano Watch: Kilauea activity update for April 5, 2018

This past week, Kīlauea Volcano’s summit lava lake level fluctuated with summit inflation and deflation, ranging about 24–30 m (79–98 ft) below the vent rim.

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Volcano Watch: Kilauea activity update for March 29, 2018

This past week, Kīlauea Volcano’s summit lava lake level fluctuated with summit inflation and deflation, ranging about 23–35 m (75–115 ft) below the vent rim.

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Volcano Watch: Kilauea activity update for March 22, 2018

This past week, Kīlauea Volcano’s summit lava lake level fluctuated with summit inflation and deflation, ranging about 20–36 m (66–118 ft) below the vent rim.

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Just before noon today, HVO's summit webcam (KIcam) captured this striking image of Kīlauea Volcano's ongoing summit eruption. A small rockfall on the north side of the Overlook crater triggered a small explosion in the lava lake, sending a dark-colored ash plume skyward. Visitors (lower right) who happened to be looking toward Halema‘uma‘u from the Jaggar Museum Overlook in Hawai‘i Volcanoes National Park witnessed the event, but were in no danger from it given their distant vantage point. Photo taken Thursday, March 15, 2018 courtesy of U.S. Geological Survey

Volcano Watch: Kilauea activity update for March 15, 2018

Kīlauea Volcano’s summit lava lake level fluctuated, ranging about 100–133 feet below the vent rim. On the East Rift Zone, the 61g lava flow remained active downslope of Pu‘u ‘Ō‘ō, with scattered breakouts on the upper part of the flow field and on Pulama pali, but no ocean entry.

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Volcano Watch: Kilauea activity update for March 8, 2018

This past week, Kīlauea Volcano’s summit lava lake level fluctuated with summit inflation and deflation, ranging about 75–128 feet below the vent rim. The 61g lava flow remained active downslope of Pu‘u ‘Ō‘ō, with scattered breakouts on the pali and coastal plain, but no ocean entry.

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Volcano Watch: Kilauea activity update for March 1, 2018

On the East Rift Zone, the 61g lava flow remained active downslope of Pu‘u ‘Ō‘ō, with scattered breakouts on Pulama pali. No lava is entering the ocean.

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Volcano Watch: Kilauea activity update for February 22, 2018

On the East Rift Zone, the 61g lava flow remained active downslope of Pu‘u ‘Ō‘ō, with scattered breakouts on the pali and coastal plain, but no ocean entry.

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Volcano Watch: Kilauea activity update for February 15, 2018

This past week, Kīlauea Volcano’s summit lava lake level fluctuated with summit inflation and deflation, ranging about 36.5–40.5 m (120–133 ft) below the vent rim.

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