Tag Archive | "kilauea"

A closer view of a gravity reading at a station located in the south part of KÄ«lauea caldera. When repeated over time, gravity measurements can detect changes in subsurface mass that might not be detectable by other monitoring methods. Scientists track this data because the changes could be related to magma movement within the volcano. USGS photo by M. Poland, 03/20/2019.

Volcano Watch: Kilauea activity update for April 4, 2019

Rates of seismicity, deformation, and gas release have not changed significantly over the past week.

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This image is from a temporary monitoring camera on the west rim of Kilauea Caldera. The camera is looking East towards the bottom of the newly enlarged Halemaʻumaʻu crater, although the deepest part of the crater is not visible from this vantage point. The crater from left to right (roughly NNE to SSW) is approximately 1 km (0.6 mi) across. The depth of the crater in the visible image from the rim is several hundred meters. Image courtesy of USGS/HVO Webcam

Volcano Watch: Kilauea activity update for March 28, 2019

KÄ«lauea is not erupting. Rates of seismicity, deformation, and gas release have not changed significantly over the past week.

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Explosive eruption columns of ash rising from Halema‘uma‘u at 11:15 a.m. on May 18, 1924 (left) and at 11:05 a.m. on May 15, 2018 (right) look similar. Researchers are re-evaluating early assumptions about the role groundwater played in triggering these explosive eruptions at the summit of Kīlauea Volcano and are now looking at the build-up of gases from retreating magma as a likely trigger. USGS photos.

Volcano Watch: Did groundwater trigger explosive eruptions at KÄ«lauea?

An explosive eruption at Halema‘uma‘u in 1924 looks similar to the column of ash rising from Halema‘uma‘u in 2018.

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After magma drained from Pu‘u ‘Ō‘ō on April 30, 2018, the crater was roughly 356 m (1168 ft) deep, with the upper part of the crater flared and the deeper part a narrower cylindrical shaft. Collapses on the crater walls have since enlarged sections of the crater and filled the deepest part with rockfall debris, creating a much different crater geometry—as shown in this comparison of models from May 11, 2018, and March 18, 2019. Today, the deepest portion of the crater is 286 m (938 ft).

Volcano Watch: Kilauea activity update for March 22, 2019

KÄ«lauea is not erupting. Rates of seismicity, deformation, and gas release have not changed significantly over the past week.

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Volcano Watch: Kilauea activity update for March 15, 2019

KÄ«lauea is not erupting. Rates of seismicity, deformation, and gas release have not changed significantly over the past week.

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USGS Hawaiian Volcano Observatory scientists installed a new battery in a summit webcam that provides a view into Halema‘uma‘u. Images from K3cam can be viewed on HVO's website at https://volcanoes.usgs.gov/observatories/hvo/webcam.html?webcam=K3cam. USGS photo: J. Kauahikaua, 03 March 2019.

Volcano Watch: Kilauea activity update for March 7, 2019

Deformation signals are consistent with refilling of Kīlauea Volcano’s deep East Rift Zone (ERZ) magma reservoir.

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Volcano Watch: Kilauea activity update for February 28, 2019

KÄ«lauea is not erupting. Rates of seismicity, deformation, and gas release have not changed significantly over the past week.

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Photo taken Tuesday, February 19, 2019 courtesy of U.S. Geological Survey

Volcano Watch: Kilauea activity update for February 21, 2019

Deformation signals are consistent with refilling of Kīlauea Volcano’s deep East Rift Zone (ERZ).

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Volcano Watch: Kilauea activity update for February 14, 2019

Deformation signals are consistent with refilling of Kīlauea Volcano’s deep East Rift Zone. Sulfur dioxide emission rates in the lower ERZ have been below detection limits since early September 2018.

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Volcano Watch: Kilauea activity update for February 7, 2019

KÄ«lauea is not erupting. Rates of seismicity, deformation, and gas release have not changed significantly over the past week.

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Kilauea Caldera. USGS/HVO image

Volcano Watch: Kilauea activity update for January 31, 2019

KÄ«lauea is not erupting. Rates of seismicity, deformation, and gas release have not changed significantly over the past week.

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Volcano Watch: Kilauea activity update for December 20, 2018

KÄ«lauea is not erupting. Rates of seismicity, deformation, and gas release have not changed significantly over the past week. Deformation signals are consistent with refilling of the middle ERZ.

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Thermal camera image at Mile Marker 14.5 on Pahoa-Kalapana Road (Route 130) Image courtesy HDOT

Volcano Watch: Kilauea activity update for December 13, 2018

Thermal camera imagery of Route 130 show steam. Low rates of seismicity, deformation, and gas release have not changed significantly over the past week. Earthquakes continue to occur primarily at KÄ«lauea’s summit area and south flank.

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A close-up of the Unmanned Aircraft System (UAS) used by USGS scientists to measure volcanic gases in remote areas of KÄ«lauea. The fissure 21 cone is visible in the far right background. Photo taken Monday, November 26, 2018 courtesy of U.S. Geological Survey

Volcano Watch: Kilauea activity update for November 29, 2018

Deformation signals are consistent with slow refilling the middle East Rift Zone. At the summit, tiltmeters showed little significant change this week.

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