Report on Kilauea (United States) — 8 June-14 June 2016
Smithsonian / US Geological Survey Weekly Volcanic Activity Report, 8 June-14 June 2016
Managing Editor: Sally Kuhn Sennert
Please cite this report as:
Global Volcanism Program, 2016. Report on Kilauea (United States). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 8 June-14 June 2016. Smithsonian Institution and US Geological Survey.
19.421°N, 155.287°W; summit elev. 1222 m
All times are local (unless otherwise noted)
HVO reported that during 8-14 June the lava lake continued to rise and fall, circulate, and spatter in Kilauea's Overlook vent. A new lava flow that began on 24 May on Pu'u 'O'o Crater's N flank had stalled; a new flow on the E flank had advanced 3.3 km SE along the National Park boundary by 10 June, and was about halfway to the top of Pulama pali. Vents on the crater floor and upper NE flank remained incandescent, and a pit just W of the crater contained a small lava pond. The June 27th NE-trending lava flow appeared to be inactive by 10 June.
Geologic Background. Kilauea, which overlaps the E flank of the massive Mauna Loa shield volcano, has been Hawaii's most active volcano during historical time. Eruptions are prominent in Polynesian legends; written documentation extending back to only 1820 records frequent summit and flank lava flow eruptions that were interspersed with periods of long-term lava lake activity that lasted until 1924 at Halemaumau crater, within the summit caldera. The 3 x 5 km caldera was formed in several stages about 1500 years ago and during the 18th century; eruptions have also originated from the lengthy East and SW rift zones, which extend to the sea on both sides of the volcano. About 90% of the surface of the basaltic shield volcano is formed of lava flows less than about 1100 years old; 70% of the volcano's surface is younger than 600 years. A long-term eruption from the East rift zone that began in 1983 has produced lava flows covering more than 100 km2, destroying nearly 200 houses and adding new coastline to the island.