Categorized | Sci-Tech

Volcano Watch: Kilauea activity update for week of April 15

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

Over the past week, breakouts along the east margin of the Thanksgiving Eve Breakout (TEB) flow on Kilauea’s east rift zone reached the base of the pali and traveled southeast along the east margin of the TEB flow field.

As of this writing (Thursday, April 22), the active flow front was about 265 m (870 ft) northwest of the end of the Kalapana access road, north of the County viewing area. The lava was creeping through thick vegetation, triggering small brush fires and minor methane bursts. A separate flow lobe about 500 m (yards) to the west was also active and approaching the forested kipuka just north of the trail.

At Kilauea’s summit, a ponded, circulating lava surface deep in the collapse pit within the floor of Halemaumau Crater was visible via Webcam during much of the past week. Volcanic gas emissions remain elevated, resulting in high concentrations of sulfur dioxide downwind.

There were no felt earthquakes during the past week.

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

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