Time-lapse movie of Halemaumau Overlook Vent. September 29-October 6, 2016. Images courtesy of USGS/HVO

Time-lapse thermal image movie of Halemaumau Overlook Vent. September 29-October 6, 2016. Images courtesy of USGS/HVO

Time-lapse movie of Halemaʻumaʻu Overlook Vent from Hawaiian Volcano Observatory. September 29-October 6, 2016. Images courtesy of USGS/HVO

Time-lapse movie of KÄ«lauea Caldera from Hawaiian Volcano Observatory. September 29-October 6, 2016. Images courtesy of USGS/HVO

Time-lapse movie of Halemaumau Crater looking Southwest. September 29-October 6, 2016. Images courtesy of Hawaii Volcanoes National Park

This morning, spattering along the eastern margin of KÄ«lauea’s summit lava lake built an overhanging ledge that was attached to the Overlook Crater wall. In this image, a few long stalactites can be seen dangling from the overhang (lower right). These stalactites were flexible enough to be swinging back and forth. Photo taken Monday, October 3, 2016 courtesy of USGS/HVO

This photograph shows spattering at the southeast margin of KÄ«lauea’s summit lava lake, as viewed from the west. This is the most common area on the lake to have spattering, but, because it is almost directly below the camera location, it is not visible in our webcam images. Photo taken Wednesday, October 5, 2016 courtesy of USGS/HVO

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

Kīlauea continues to erupt at its summit and East Rift Zone. This past week, the summit lava lake level dropped in concert with summit deflation, from about 10 m (33 ft) to as low as 47 m (154 ft) below the vent rim within Halema‘uma‘u Crater. The 61g lava flow continued to enter the ocean near Kamokuna. The lava flow does not pose an immediate threat to nearby communities.

Mauna Loa is not erupting. Seismicity remains elevated relative to the long-term background rate, with small earthquakes occurring mostly in the volcano’s south caldera and upper Southwest Rift Zone at depths less than 5 km (3 mi). Global Positioning System (GPS) measurements show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone.

No earthquakes were reported felt on the Island of Hawaiʻi this past week.

Please visit the HVO website (http://hvo.wr.usgs.gov) for past Volcano Watch articles, KÄ«lauea daily eruption updates, Mauna Loa weekly updates, volcano photos, recent earthquakes info, and more; call for summary updates at 808-967-8862 (KÄ«lauea) or 808-967-8866 (Mauna Loa); email questions to askHVO@usgs.gov.

Typical spattering activity in KÄ«lauea’s summit lava lake. This spattering was occurring along the eastern margin of the lake on the evening of October 5, 2016. Video courtesy of USGS/HVO

This video shows spattering in two locations of KÄ«lauea’s summit lava lake. In the first segment, spattering is active in a small area in the southern portion of the lake. In the second segment, spattering on the east margin of the lake has created an overhanging ledge with dangling lava stalactites. Photo taken Monday, October 3, 2016 courtesy of USGS/HVO

This satellite image was captured on Thursday, September 29, by the NASA/USGS Landsat 8 satellite. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds.
The image shows that surface breakouts remain active on the coastal plain, about 2 km (1.2 miles) upslope from the Kamokuna ocean entry. A bright thermal anomaly (red pixels) is also present in Puʻu ʻŌʻō Crater, due to a small lava pond.