Categorized | Sci-Tech

Volcano Watch: Kilauea activity update for week of April 1

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

On Kilauea’s east rift zone, breakouts along the east margin of the Thanksgiving Eve Breakout (TEB) flow remain active on the Pulama pali. The active flow front was at the 700 ft elevation level Thursday, April 8.

If lava supply to these flows continues, they are expected to eventually rejoin the main TEB flow field just west of the County Viewing Area. The flows may also stall before reaching the coastal plain due to ongoing lava supply fluctuations.

At Kilauea’s summit, a ponded, circulating lava surface deep within the collapse pit inset 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.

One earthquake beneath Hawaii Island was reported felt during the past week. A magnitude-1.3 microearthquake occurred at 9:22 a.m. Friday, April 2 and was located 2 km (1 mile) northwest of Opihikao, at a depth of 2 km (1 mile).

Visit the HVO Web site ( ) 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

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