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Volcano Watch: Kilauea activity update for December 24, 2015


Time-lapse thermal image movie of Halemaumau Overlook Vent. December 17-24, 2015. Images courtesy of USGS/HVO


Time-lapse movie of Halemaumau Overlook Vent. December 17-24, 2015. Images courtesy of USGS/HVO


Time-lapse movie of Halemaʻumaʻu Overlook Vent from Hawaiian Volcano Observatory. December 17-24, 2015. Images courtesy of USGS/HVO


Time-lapse movie of Halemaumau Crater looking Southwest. December 17-24, 2015. Images courtesy of Hawaii Volcanoes National Park


Time-lapse movie of Kīlauea Caldera from Hawaiian Volcano Observatory. December 17-24, 2015. Images courtesy of USGS/HVO

(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. During the past week, the summit lava lake level varied between about 38 and 74.5 m (125–244 ft) below the vent rim within Halema‘uma‘u Crater. On the East Rift Zone, scattered lava flow activity remained within about 6 km (4 mi) of Puʻu ʻŌʻō.

Mauna Loa is not erupting. Seismicity remains elevated above long term background levels. In the last week, earthquakes occurred mostly beneath Mauna Loa’s upper Southwest Rift Zone at depths less than 5 km (3 mi). GPS measurements continue to show deformation related to inflation of reservoirs beneath the summit and upper Southwest Rift Zone of Mauna Loa.

One earthquake was reported felt on the Island of Hawai‘i during the past week. On Saturday, December 19, 2015, at 1:59 a.m., HST, a magnitude-3.7 earthquake occurred 4.8 km (3.0 mi) southwest of Volcano at a depth of 2.9 km (1.8 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 movie of Pu’u ‘O’o Crater North Flank from the North Rim. December 17-24, 2015. Images courtesy of USGS/HVO

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