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Time-lapse movie of the Halemaumau Overlook vent

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

A lava lake within the Halema`uma`u Overlook vent resulted in night-time glow that was visible from the Jaggar Museum overlook during the past week. The lake has been about 60–80 m (200–260 ft) below the floor of Halema`uma`u Crater and visible by HVO’s Webcam through much of the last month. This past week, the level fluctuated slightly due to several deflation-inflation (DI) cycles at the summit.

On Kilauea’s east rift zone, surface lava flows on the pali and coastal plain continued to be active. Over the past week, the flow front has advanced little and has lingered near the boundary of Hawai`i Volcanoes National Park about 950 m (0.6 miles) from the coastline; there was no active ocean entry. Within Pu`u `O`o, a lava pond was active in the eastern portion of the crater.

One earthquake was reported felt under the island of Hawai`i in the past week. On Tuesday, July 3, at 11:53 p.m., HST, a M2.9 earthquake occurred 4 km (3 mi) southwest of Pohakuloa at a depth of 16 km (10 mi).

Visit the HVO Web site (http://hvo.wr.usgs.gov) for detailed Kilauea and Mauna Loa activity updates, recent volcano photos, recent earthquakes, and more; call (808) 967-8862 for a Kilauea summary; email questions to askHVO@usgs.gov

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Time-lapse movie of the Peace Day Flow on the coastal plain