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Report on Kilauea (United States) — 29 October-4 November 2014


Kilauea

Smithsonian / US Geological Survey Weekly Volcanic Activity Report,
29 October-4 November 2014
Managing Editor: Sally Kuhn Sennert

Please cite this report as:

Global Volcanism Program, 2014. Report on Kilauea (United States). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 29 October-4 November 2014. Smithsonian Institution and US Geological Survey.

Weekly Report (29 October-4 November 2014)

Kilauea

United States

19.421°N, 155.287°W; summit elev. 1222 m

All times are local (unless otherwise noted)


During 29 October-4 November HVO reported that Kilauea’s 27 June NE-trending lava flow continued to be active. Breakout lava flows behind the stalled leading edge continued to advance; during 30-31 October a lobe downslope of the Pahoa cemetery was active, burning trees in a forested area and causing numerous loud methane bursts. The lobe entered residential property at 1645 on 31 October, advanced along the N edge of the property, and then stalled on 4 November. The interior areas of the flows continued to inflate.

The circulating lava lake occasionally rose and fell in the deep pit within Halema'uma'u Crater. Gas emissions remained elevated. The plume from the vent continued to deposit variable amounts tephra onto nearby areas; smaller particles may have been dropped several kilometers away. At Pu'u 'O'o Crater, glow emanated from several outgassing openings in the crater floor.

Geological Summary. Kilauea overlaps the E flank of the massive Mauna Loa shield volcano in the island of Hawaii. Eruptions are prominent in Polynesian legends; written documentation since 1820 records frequent summit and flank lava flow eruptions interspersed with periods of long-term lava lake activity at Halemaumau crater in the summit caldera until 1924. The 3 x 5 km caldera was formed in several stages about 1,500 years ago and during the 18th century; eruptions have also originated from the lengthy East and Southwest rift zones, which extend to the ocean in both directions. About 90% of the surface of the basaltic shield volcano is formed of lava flows less than about 1,100 years old; 70% of the surface is younger than 600 years. The long-term eruption from the East rift zone between 1983 and 2018 produced lava flows covering more than 100 km2, destroyed hundreds of houses, and added new coastline.

Source: US Geological Survey Hawaiian Volcano Observatory (HVO)