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Volcano Watch: Kilauea activity update for April 27, 2017


Time-lapse movie of Halemaumau Overlook Vent. April 20-27, 2017. Images courtesy of USGS/HVO


Time-lapse thermal image movie of Halemaumau Overlook Vent. April 20-27, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Halemaʻumaʻu Overlook Vent from Hawaiian Volcano Observatory. April 20-27, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Kīlauea Caldera from Hawaiian Volcano Observatory. April 20-27, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Halemaumau Crater looking Southwest. April 20-27, 2017. Images courtesy of Hawaii Volcanoes National Park

(Activity updates are written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.)

This past week, Kīlauea Volcano’s summit lava lake level fluctuated in concert with summit inflation and deflation, ranging 13-22 m (43-72 ft) below the vent rim. On the East Rift Zone, the 61g flow was still active, with lava entering the ocean near Kamokuna and surface breakouts downslope of Pu‘u ‘Ō‘ō. These flows do not pose an immediate threat to nearby communities.

Mauna Loa is not erupting. During the past week, small-magnitude earthquakes were recorded primarily beneath the upper southwest rift zone of the volcano, at depths up to 5 km (3 mi), and the east flank at depths of 5-13 km (3-8 miles). A magnitude 3.7 earthquake occurred in the upper Southwest Rift Zone on April 26. GPS measurements continue to show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone. No significant changes in volcanic gas emissions were measured.

No earthquakes were reported felt in Hawaii during the past week.

Please visit the HVO website (hvo.wr.usgs.gov) for past Volcano Watch articles, Kīlauea daily eruption updates, Mauna Loa weekly updates, volcano photos, recent earthquakes info, and more; call for summary updates at 808-967-8862 (Kīlauea) or 808-967-8866 (Mauna Loa); email questions to askHVO@usgs.gov.


Time-lapse movie of Pu’u ‘O’o Crater. April 20-27, 2017. Images courtesy of USGS/HVO


Time-lapse image movie from a research camera positioned on Holei Pali, looking east towards Lava Flow 61G and Kalapana. April 20-27, 2017. Images courtesy of USGS/HVO

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Jul 20, 2017 / 5:15 pm

 

 

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