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Volcano Watch: Kilauea activity update for June 15, 2017


Time-lapse movie of Halemaumau Overlook Vent. June 8-15, 2017. Images courtesy of USGS/HVO


Time-lapse thermal image movie of Halemaumau Overlook Vent. June 8-15, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Halemaʻumaʻu Overlook Vent from Hawaiian Volcano Observatory. June 8-15, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Kīlauea Caldera from Hawaiian Volcano Observatory. June 8-15, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Halemaumau Crater looking Southwest. June 8-15, 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 13–38.5 m (43–126 ft) below the vent rim. On the East Rift Zone, the 61g flow remained active, with lava entering the ocean near Kamokuna and scattered surface breakouts downslope of Pu‘u ‘Ō‘ō. These flows do not pose an immediate threat to nearby communities.

Mauna Loa is not erupting. Rates of deformation and seismicity have not changed significantly this past week, but persist above long-term background levels. During the past week, only a few small-magnitude earthquakes occurred beneath the volcano, primarily in the south caldera and upper Southwest Rift Zone at depths less than 5 km (3 mi). A small number of earthquakes also occurred on the west flank of the volcano at depths of 0-13 km (0-8 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.

Two earthquakes were reported felt on the Island of Hawaiʻi during the past week. On June 12, 2017, at 08:42 p.m. HST, a magnitude-2.3 earthquake occurred 4 km (2.5 mi) southeast of Leilani Estates at 2.7 km (1.7 mi) depth. On June 11, at 08:22 a.m., a magnitude-2.8 earthquake occurred 13 km (8 mi) southwest of Captain Cook at 12 km (7.5 mi) depth.

Please visit the HVO website (volcanoes.usgs.gov/hvo) 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. June 8-15, 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. June 8-15, 2017. Images courtesy of USGS/HVO

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