Video courtesy of Tropical Visions Video with air transportation by Paradise Helicopters.
Time-lapse thermal image movie of Halemaumau Overlook Vent. July 27-August 3, 2017. Images courtesy of USGS/HVO
Time-lapse movie of Halemaumau Overlook Vent. July 27-August 3, 2017. Images courtesy of USGS/HVO
Time-lapse movie of Halemaʻumaʻu Overlook Vent from Hawaiian Volcano Observatory. July 27-August 3, 2017. Images courtesy of USGS/HVO
Time-lapse movie of KÄ«lauea Caldera from Hawaiian Volcano Observatory. July 27-August 3, 2017. Images courtesy of USGS/HVO
Time-lapse movie of Halemaumau Crater looking Southwest. July 27-August 3, 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, KÄ«lauea 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. 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‘Å. Widening cracks and slumping on the Kamokuna lava delta indicate its instability and potential for collapse. The 61g flows do not pose an immediate threat to nearby communities.
Mauna Loa is not erupting. During the past week, small-magnitude earthquakes continued to occur beneath the volcano, primarily in the south caldera and upper Southwest Rift Zone, at depths less than 5 km (3 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 with three or more felt reports occurred on the Island of HawaiÊ»i during the past week: On August 3, at 3:54 a.m. HST, a magnitude-3.4 earthquake located 3 km (2 mi) southwest of Captain Cook at 11 km (7 mi) depth. On July 30, at 2:01 a.m. HST, a magnitude-4.2 earthquake located 33 km (21 mi) northwest of HÄwÄ« at 17 km (11 mi) depth.
Time-lapse movie of Pu’u ‘O’o Crater. July 27-August 3, 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. July 27-August 3, 2017. Images courtesy of USGS/HVO