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Volcano Watch: Kilauea activity update for May 11, 2017


Time-lapse thermal image movie of Halemaumau Overlook Vent. May 4-11, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Halemaumau Overlook Vent. May 4-11, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Halemaʻumaʻu Overlook Vent from Hawaiian Volcano Observatory. May 4-11, 2017. Images courtesy of USGS/HVO


Time-lapse movie of KÄ«lauea Caldera from Hawaiian Volcano Observatory. May 4-11, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Halemaumau Crater looking Southwest. May 4-11, 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 fluctuated in concert with summit inflation and deflation, with levels ranging around 16.5–24.5 m (54–80 ft) below the vent rim. On the East Rift Zone, the 61g flow was still active, with lava entering the ocean near Kamokuna, rebuilding the lava delta that collapsed last week, 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 at depths up to 5 km (3 mi), and the upper west flank at depths of about 7-8 km (4-5 mi). 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 the Hawaiian Islands during the past week.

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


Time-lapse movie of Pu’u ‘O’o Crater. May 4-11, 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. May 4-11, 2017. Images courtesy of USGS/HVO

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