Kilauea volcano update for Friday, November 19


USGS: “This thermal image faces west and shows the lava lake at Halema’uma’u, atop KÄ«lauea. Active surface lava is limited to the west side of the lake near the west vent. The eastern part is solidified at the surface, with small seeps often active along the perimeter of the lake. One of these seeps recently passed a short distance to the lowest boulder. (USGS image by Mr. Patrick)

(BIVN) – The Kilauea Volcano eruption continues on Hawai’i Island, with all activities confined to the top of Halema’uma’u Crater in Hawai’i Volcanoes National Park.

The activity has changed little in recent days. Scientists noted small “seeps” along the perimeter of the lava lake, including one that produced a lava flow a short distance over the lower block.

USGS: “The lava lake surface elevation in Halema’uma’u Crater has now risen slightly above the lowest boulder level since the 2018 KÄ«lauea summit collapse. On the night of November 15, 2021, a surge of lava from the lakeside allowed lava to flow to the surface of the block. HVO geologists observed this new flow during a helicopter flight over the summit of KÄ«lauea on November 16. (USGS Image by B. Carr)

From the USGS Hawaiian Volcano Observatory on Friday, November 19:

Summit Observations: Sulfur dioxide (SO2) emission rates remain high, with an emission rate for November 18, 2021 of approximately 3,800 tonnes per day. Summit inclinometers have generally recorded a generally neutral incline over the past day. Seismicity remains stable. The seismic activity remains below the background noise and the volcanic tremor has remained high since the start of the eruption.

Observations of the Halema’uma’u lava lake: Lava continues to emerge from a single vent in the western wall of Halema’uma’u Crater, while the eastern edge of the lake continues to advance over the lower exposed blocks of soil in the caldera. The western end of the lake showed a maximum elevation of about 804 meters (2,638 feet) above sea level by the HVO permanent laser range finder this morning, and a total increase of about 60 meters (197 feet) ) since the lava emerged on September 29. The webcams show splash and accumulated lava in the west vent, an area of ​​active lava on the surface of the lava lake, and sporadic lava seeps along the cooler outer edges of the lake. The total eruption volume since the start of the eruption was estimated to be around 30 million cubic meters (7.8 billion gallons) on November 16.

USGS: “A helicopter overflight on November 16, 2021 at approximately 8:30 am HST collected aerial visual and thermal images of Halema’uma’u Crater atop KÄ«lauea. The heat map scale ranges from blue to red, with blue colors indicating cooler temperatures and red colors indicating warmer temperatures. In the western ventilation cone, a small crater houses a small lava pond which is noticeably warmer on the map. The active area of ​​the lava lake in the western part of Halema’uma’u is about 300 m (almost a thousand feet) wide in north-south and east-west directions. The eastern part of the lava lake is solidified at the surface, although webcam imagery shows that this part of the lake continues to rise piston-like, with occasional “seeps” extruding along the length of the lake. perimeter of the lake as it cools. the surface rises. New lava flow over the collapsed block north and east of Halema’uma’u, which is noticeably hotter on the map, is from these “leaks”.

The USGS HVO continues to note that no unusual activity has been observed in the KÄ«lauea East Rift area.

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