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Volcano Watch: Kilauea activity update for April 9, 2015


Time-lapse thermal image movie of Halemaumau Overlook Vent. April 2-12, 2015. Images courtesy of USGS/HVO

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

Kīlauea’s East Rift Zone lava flow continues to feed three areas of breakouts near Puʻu ʻŌʻō. The front of the breakout farthest downslope had advanced very little over the past week and was still about 7 km (just over 4 mi) northeast of Puʻu ʻŌʻō when mapped on Thursday, April 9.

There have been no major changes at Kīlauea’s summit vent, which continues to host an active lava lake. The lava lake level continues to fluctuate and was 37 m (120 ft) below the rim of the Overlook crater on April 9.

There were two earthquakes reported felt on the Island of Hawai’i in the past week. On Sunday, April 5, at 12:16 a.m. HST, a magnitude-3.3 earthquake occurred and was located 10.6 km (6.6 mi) northeast of Kawaihae at a depth of 25.8 km (16.0 mi). On the same day at 3:23 a.m. HST, a magnitude-4.5 earthquake occurred and was located 6.3 km (10.1 mi) northwest of Kailua at a depth of 10.0 km (6.2 mi).

Visit the HVO website (hvo.wr.usgs.gov) for past Volcano Watch articles, Kīlauea daily eruption updates and other volcano status reports, current volcano photos, recent earthquakes, and more; call (808) 967-8862 for a Kīlauea summary update; email questions to askHVO@usgs.gov

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow on April 3 is shown in pink, while widening and advancement of the flow as of April 9 is shown in red. We were not able to map some parts of the flow field with breakouts today due to poor weather, and these areas are denoted in boxes. Neither area has changed significantly since our previous mapping. See the map posted on April 1 to see the entire June 27th lava flow field and location of Pāhoa.

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow on April 3 is shown in pink, while widening and advancement of the flow as of April 9 is shown in red. We were not able to map some parts of the flow field with breakouts today due to poor weather, and these areas are denoted in boxes. Neither area has changed significantly since our previous mapping. See the map posted on April 1 to see the entire June 27th lava flow field and location of Pāhoa.

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