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Volcano Watch: Kilauea activity update for June 7, 2012

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Time-lapse thermal imaging movie of 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 during the past week resulted in night-time glow that was visible from the Jaggar Museum overlook. 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 due to deflation-inflation (DI) cycles at the summit, reaching a high level of about 56 m (180 ft) below the Halema`uma`u Crater floor.

On Kilauea’s east rift zone, surface lava flows on the pali and coastal plain continued advancing towards the ocean. As of Wednesday, June 6, the active flows were 1.7 km (1.1 miles) from the ocean; there was no active ocean entry. Within the Pu`u `O`o crater, a lava pond was active and several small lava flows were erupted onto the crater floor over the past week.

Five earthquakes were reported felt across the island of Hawai`i during the last week. On Thursday, May 31, at 11:15 a.m., HST, a magnitude-3.5 earthquake occurred 11 miles (18 km) north of Pahala at a depth of 7 miles (11 km). On Monday, June 4, at 12:55 a.m., a magnitude-3.5 earthquake occurred 9 miles (14 km) southeast of Na`alehu at a depth of 23 miles (37 km). Also on Monday at 3:23 p.m., a magnitude-3.5 earthquake occurred 5 miles (9 km) south of Kilauea Summit at a depth of 0.5 miles (1 km). On Tuesday, June 5, at 10:05 a.m., a magnitude-3.2 earthquake occurred at Kukuihaele at a depth of 22 miles (35 km). On Wednesday, June 6, at 8:53 a.m., a magnitude-2.6 earthquake occurred 3 miles (5 km) northwest of Volcano Village at a depth of 5 miles (9 km).

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.
Volcano Watch is a weekly article and activity update written by scientists at the U.S. Geological Survey`s Hawaiian Volcano Observatory.

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Time-lapse movies of coastal plain cameras on Kilauea’s East rift zone

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