Archive | Volcano

The flow front of the June 26 breakout (pictured above) has stalled. On the coastal plain today, the closest active breakouts found by HVO geologists were 2.1 km (1.3 miles) upslope from the emergency route. There were a few areas of active pāhoehoe breakouts which varied from sluggish ropey textures to thin and fluid flows. Photo taken Tuesday, August 15, 2017 courtesy of USGS/HVO

Volcano Watch: Kilauea activity update for August 17, 2017

This past week, Kīlauea Volcano’s summit lava lake level varied 28–44 m (92-144 ft) below the vent rim, with fluctuations in concert with summit inflation and deflation.

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Volcano Watch: The ongoing Pu‘u ‘Ō‘ō eruption is full of anniversaries

The longest-lived and most voluminous rift-zone eruption of Kīlauea Volcano in more than 500 years—the ongoing Pu‘u ‘Ō‘ō eruption—began in January 1983, and is fast approaching its 35th anniversary.

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Side-by-side images from the Hawaiian Volcano Observatory’s Thermal Web Camera (HTcam) located on the rim of Halemaʻumaʻu before (left) and after (right) lava veneer from the vent wall fell into the lake on July 28, 2017. The collapse scar is circled at right. You can follow the changing lava lake activity, as seen through the eyes of a thermal camera, on HVO’s website at https://volcanoes.usgs.gov/vsc/captures/kilauea/htcam.jpg. USGS images.

Volcano Watch: Thermal Cameras Keep a Cool Eye on Hot Lava

Thermal cameras have been used by volcanologists around the world for many years to study volcanic processes and search for signs of impending eruptions.

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Volcano Watch: Kilauea activity update for August 10, 2017

On the East Rift Zone, the 61g flow remained active, with lava entering the ocean near Kamokuna and surface breakouts downslope of Pu‘u ‘Ō‘ō.

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Volcano Watch: Kilauea activity update for August 3, 2017

This past week, Kīlauea Volcano’s summit lava lake level fluctuated in concert with summit inflation and deflation, ranging 31–48 m (102–157 ft) below the vent rim.

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Volcano Watch: What was happening at Kīlauea Volcano ten years ago?

Kīlauea has now passed the one-year anniversary of the episode 61g lava flow reaching the Pacific Ocean. But what was this busy volcano up to a decade ago?

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At 7:01 a.m. HST on Thursday, June 8, 2017 a 5.3 magnitude quake struck the south flank of Mauna Loa. USGS Graphic

Volcano Watch: Largest Hawaiian earthquake in a decade reminds us to be prepared

On June 8, 2017, many Island of Hawai‘i residents were awakened by a sharp jolt just past 7 a.m. This 5.3 magnitude natural wake-up call was the largest quake to strike Hawaii in over a decade.

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Volcano Watch: Kilauea activity update for July 27, 2017

This past week, Kīlauea Volcano’s summit lava lake level was relatively stable, ranging 25–30 m (82–98 ft) below the vent rim, with fluctuations in concert with summit inflation and deflation.

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Volcano Watch: Kilauea activity update for July 20, 2017

This past week, Kīlauea Volcano’s summit lava lake fluctuated in concert with summit inflation and deflation, with levels ranging 82–148 feet (25–45 m) below the vent rim.

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Kīlauea Volcano’s Kamokuna ocean entry photographed on May 23, 2017 (left) and July 13, 2017 (right) show how lava flowing from the tube has both widened and thickened the delta. Near the sea cliff, the delta appears to have doubled in thickness over the past seven weeks, creating a distinctly sloped surface from the base of the cliff to the sea. As of mid-July, the Kamokuna lava delta was estimated to be about 1150 feet (350 m) wide and about 6 acres in area. Large cracks on the delta indicate its instability and potential for collapse. USGS photos by L. DeSmither.

Volcano Watch: Kīlauea Volcano’s Kamokuna ocean entry reaches its one-year anniversary

(Volcano Watch is a weekly article written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.) July 26th marks the one-year anniversary of Kīlauea Volcano’s episode 61g lava flow reaching the sea. And at this time, there’s no indication that the Kamokuna ocean entry will soon end. The story began in late May 2016, […]

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Volcano Watch: Kilauea activity update for July 13, 2017

This past week, Kīlauea Volcano’s summit lava lake fluctuated in concert with summit inflation and deflation, with levels ranging 26–43 m (85–141 ft) below the vent rim.

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Volcano Watch: New map reveals geologic history of Mauna Loa Volcano’s northeast flank

The new “Geologic map of the northeast flank of Mauna Loa volcano, Island of Hawaiʻi,” is the culmination of many years of work by Hawaiian Volcano Observatory (HVO) geologists.

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Aug 21, 2017 / 5:15 pm

 

 

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