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Volcano Watch: Kilauea activity update for January 26, 2017

Kīlauea Volcano's summit lava lake level typically rises and falls in concert with summit inflation and deflation, as shown by these two HVO webcam images. The left image was captured a week ago (on Jan. 17, 2017), when the lava level was 52.5 m (172 ft) below the vent rim, the lowest level measured since April 8, 2016. The right image, captured this morning (Jan. 24, 2017), shows the lava lake level at 15 m (49 ft) below the vent rim. Unfortunately, gases emitted from the lava lake and poor weather conditions partially obscure the images. Photos courtesy of USGS/HVO

Kīlauea Volcano’s summit lava lake level typically rises and falls in concert with summit inflation and deflation, as shown by these two HVO webcam images. The left image was captured a week ago (on Jan. 17, 2017), when the lava level was 52.5 m (172 ft) below the vent rim, the lowest level measured since April 8, 2016. The right image, captured this morning (Jan. 24, 2017), shows the lava lake level at 15 m (49 ft) below the vent rim. Unfortunately, gases emitted from the lava lake and poor weather conditions partially obscure the images. Photos courtesy of USGS/HVO


This video clip shows the lava stream pouring out of the tube into the Pacific Ocean, triggering pulsating explosions that are throwing bits of lava onto the top of the sea cliff. Video taken Wednesday, January 25, 2017 courtesy of USGS/HVO


Time-lapse thermal image movie of Halemaumau Overlook Vent. January 19-26, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Halemaumau Overlook Vent. January 19-26, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Halemaʻumaʻu Overlook Vent from Hawaiian Volcano Observatory. January 19-26, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Kīlauea Caldera from Hawaiian Volcano Observatory. January 19-26, 2017. Images courtesy of USGS/HVO


Time-lapse movie of Halemaumau Crater looking Southwest. January 26, 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 12 and 22 m (39–72 ft) below the vent rim. The 61g flow was still active, with lava entering the ocean near Kamokuna and surface breakouts near Pu‘u ‘Ō‘ō. 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, primarily beneath the 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 above 13 km (8 mi). GPS measurements continue to show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone.

One earthquake was reported felt on the Island of Hawaiʻi in the past week. On January 23, at 9:13 a.m., HST, a magnitude-3.2 earthquake occurred 12.8 km (8.0 mi) southeast of Ho‘okena at a depth of 12.7 km (7.9 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. January 19-26, 2017. Images courtesy of USGS/HVO

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