Time-lapse movie of Halemaumau Overlook Vent. February 16-23, 2017. Images courtesy of USGS/HVO
Time-lapse thermal image movie of Halemaumau Overlook Vent. February 16-23, 2017. Images courtesy of USGS/HVO
Time-lapse movie of Halemaʻumaʻu Overlook Vent from Hawaiian Volcano Observatory. February 16-23, 2017. Images courtesy of USGS/HVO
Time-lapse movie of Kīlauea Caldera from Hawaiian Volcano Observatory. February 16-23, 2017. Images courtesy of USGS/HVO
Time-lapse movie of Halemaumau Crater looking Southwest. February 16-23, 2017. Images courtesy of Hawaii Volcanoes National Park
(Activity updates are written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.)
Kīlauea continues to erupt at its summit and East Rift Zone. This past week, the summit lava lake level varied between about 20 and 30 m (66–98 ft) below the vent rim. The 61g flow was still active, with lava entering the ocean near Kamokuna and surface breakouts downslope of Pu‘u ‘Ō‘ō and on the coastal plain about 730 m (about 0.5 mi) inland of the ocean. The 61g flows do not pose an immediate threat to nearby communities.
Mauna Loa is not erupting. During the past week, a few dozen small-magnitude earthquakes occurred beneath the volcano, primarily in the upper Southwest Rift at depths less than 5 km (3 mi), with a few on the volcano’s west flank at slightly greater depths. GPS measurements continue to show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone. No significant change in the summit fumarole temperature was noted this past week.
Two earthquakes were reported felt on the Island of Hawaiʻi this past week. On February 17, at 5:33 a.m., HST, a magnitude-4.6 earthquake occurred 23.7 km (14.7 mi) northwest of Kawaihae at a depth of 41 km (25 mi), and, at 5:49 a.m., a magnitude-2.4 earthquake occurred 22.4 km (13.9 mi) northwest of Kawaihae at a depth of 40 km (24 mi).
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 image movie from a research camera positioned on Holei Pali, looking east towards Lava Flow 61G and Kalapana. February 16-23, 2017. Images courtesy of USGS/HVO