

Kīlauea Caldera from HVO (4/10/14-4/17/14)



Halemaʻumaʻu Overlook Vent from HVO (4/10/14-4/17/14)



Time-lapse movie of Halemaumau Crater (4/10/14-4/17/14)



Thermal image movie of Halemaumau Crater (4/10/14-4/17/14)

(Activity updates are written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.)

A lava lake within Halema‘uma‘u produced nighttime glow that was visible via HVO’s Webcam during the past week. The deflation phase of a large deflation–inflation (DI) event, which began on April 10, caused the lava level to drop about 25 m (82 ft) over the next several days. Inflation started on April 14, and as of Thursday, April 17, the lava level had risen 20 m (66 ft) and was about 42 m (138 ft) below the rim of the Overlook crater.

On Kīlauea’s East Rift Zone, the Kahauale‘a 2 flow continued to be active northeast of Pu‘u ‘Ō‘ō. The active flow front was 8.3 km (5.2 miles) northeast of the vent on Pu‘u ‘Ō‘ō on Wednesday, April 9, based on satellite imagery. Webcam images indicate that small, lava-sparked forest fires continue to burn.

There were no felt earthquakes in the past week on the island of Hawai‘i.



Multi-image movie of Pu’u ‘O’o Crater. (4/10/14-4/17/14)



Thermal image movie of Pu‘u ‘O‘o Crater (4/10/14-4/17/14)



Pu’u ‘O’o Crater East Flank. (4/10/14-4/17/14)



Mokuʻāweoweo Caldera (4/10/14-4/17/14)

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