Volcano Watch: Kilauea activity update for January 11, 2018


Time-lapse movie of Halemaumau Overlook Vent. January 4-11, 2018. Images courtesy of USGS/HVO


Time-lapse movie of Halemaʻumaʻu Overlook Vent from Hawaiian Volcano Observatory. January 4-11, 2018. Images courtesy of USGS/HVO


Time-lapse movie of Kīlauea Caldera from Hawaiian Volcano Observatory. January 4-11, 2018. Images courtesy of USGS/HVO


Time-lapse movie of Halemaumau Crater looking Southwest. January 4-11, 2018. 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 level fluctuated with summit inflation and deflation, ranging about 30–47 m (98–154 ft) below the vent rim. On the East Rift Zone, the 61g lava flow remained active downslope of Pu‘u ‘Ō‘ō, with scattered breakouts on the pali and coastal plain, but no ocean entry. The 61g flows do not pose an immediate threat to nearby communities.

Mauna Loa is not erupting. Rates of deformation and seismicity remain above long-term background levels, but rates are decreased from earlier in the year. Similar decreases have occurred in the past during the ongoing period of unrest; it is uncertain if these lower rates will persist or will pick up again in the near future. Small-magnitude earthquakes occurred beneath the summit caldera and upper Southwest Rift Zone at depths less than 5 km (3 mi). A few deeper earthquakes were scattered beneath the volcano’s southeast flank at depths of 5‒13 km (3‒8 mi). GPS and InSAR 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.

No earthquakes were reported felt on the Island of Hawaiʻi this past week.


Time-lapse movie of Pu’u ‘O’o Crater. January 4-11, 2018. Images courtesy of USGS/HVO


Time-lapse movie from a camera positioned on the southeast flank of Puʻu ʻŌʻō, looking toward the active flow advancing to the southeast. The breakout point is at the left edge of the image, and the mid-field skyline at the right is roughly coincident with the top of the pali. January 4-11, 2018. 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. January 4-11, 2018. Images courtesy of USGS/HVO

A HVO geologist at Pu‘u ‘Ō‘ō takes GPS measurements at a webcam and thermal camera. Photo taken Friday, January 5, 2018 courtesy of U.S. Geological Survey

A HVO geologist at Pu‘u ‘Ō‘ō takes GPS measurements at a webcam and thermal camera. Photo taken Friday, January 5, 2018 courtesy of U.S. Geological Survey

The episode 61g Kamokuna lava delta remains inactive. The only observed change was a pile of rubble at the base of the older sea cliff (black arrow). This was formed by a collapse of the solidified lava falls from one of the cliff breakouts during the second half of 2017. Photo taken Friday, January 5, 2018 courtesy of U.S. Geological Survey

The episode 61g Kamokuna lava delta remains inactive. The only observed change was a pile of rubble at the base of the older sea cliff (black arrow). This was formed by a collapse of the solidified lava falls from one of the cliff breakouts during the second half of 2017. Photo taken Friday, January 5, 2018 courtesy of U.S. Geological Survey

Kīlauea's 61g flow on Pūlama Pali and the coastal plain continues, with scattered breakouts at the base of the pali. The closest active lava is roughly 2.5 km (1.6 miles) from the emergency road, and 0.6 km (0.4 mile) out from the base of the pali. Photo taken Friday, January 5, 2018 courtesy of U.S. Geological Survey

Kīlauea’s 61g flow on Pūlama Pali and the coastal plain continues, with scattered breakouts at the base of the pali. The closest active lava is roughly 2.5 km (1.6 miles) from the emergency road, and 0.6 km (0.4 mile) out from the base of the pali. Photo taken Friday, January 5, 2018 courtesy of U.S. Geological Survey

Leave a Reply

 

 

Become a fan on facebook

Photos on flickr

 

 

Quantcast
%d bloggers like this: