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This movie shows the impressive spattering at the western margin of the lava lake at Halemaʻumaʻu. The continuous spattering is often punctuated by bursts which throw lava onto the ledge (left portion of image), and this accumulating lava is building a spatter rampart. If you focus on the right portion of the image, you can see the slow migration of the lava lake surface crust towards the spatter source, where lava sinks back into the magmatic system. Video courtesy of USGS/HVO
(Activity updates are written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.)
A lava lake present within the Halema`uma`u Overlook vent during the past week resulted in night-time glow that was visible from the Jaggar Museum overlook. The lake, which is normally about 80–115 m (260–380 ft) below the floor of Halema`uma`u Crater and visible by HVO`s Webcam, rose and fell slightly during the week in response to a series of deflation-inflation cycles. This past week, the lava lake reached a very high level, about 60 m (200 ft) below the floor of Halema`uma`u Crater.
On Kilauea`s east rift zone, surface lava flows were active on the pali and coastal plain over the past week. The flows on the coastal plain have made only minor progress toward the ocean over the past week. As of Thursday, May 17, the coastal plain lava flows were still approximately 1 km (0.6 miles) from the water. There is no active ocean entry.
One earthquake was reported felt beneath Hawai`i Island this past week. A magnitude-2.2 earthquake occurred on Sunday, May 13, at 5:24 p.m., HST, and was located 15 km (9 mi) southwest of Waiki`i at a depth of 9 km (6 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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Halemaumau Overlook Vent Lava Lake time-lapse movie.
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Kilauea lava flows on the coastal plain time-lapse movie.
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