Kilauea (United States) - Report for 13 June-19 June 2018

HVO reported that the eruption at Kilauea?s Lower East Rift Zone (LERZ) and at Overlook Crater within Halema`uma`u Crater continued during 13-19 June.
Lava fountaining and spatter was concentrated at Fissure 8, feeding lava flows that spread through Leilani Estates and Lanipuna Gardens subdivisions, and built out the coastline where the fast-moving flow entered the ocean in the area of the former Kapoho Bay.
Minor lava activity at Fissures 16/18 was occasionally noted, and spattering was visible at Fissure 6 on 16 June.
Hawai?i County Civil Defense reported that by 17 June a total of 533 homes had been destroyed due to lava flows.
Inward slumping of the crater rim and walls of Halema`uma`u continued, adjusting from the withdrawal of magma and subsidence of the summit area.
Steam plumes rose from areas in the crater as well as from circumferential cracks adjacent to the crater.
Summit explosions occurred daily, producing ash plumes that rose as high as 3 km (10,000 ft) a.s.l.
On 18 June residents reported feeling a large earthquake at 0613 and hearing roaring.
The event was followed by an ash plume rising to 1.5 km (5,000 ft) a.s.l.
Fountaining at Fissure 8 was stable; lava fountains rose as high 60 m from a 52-m-high spatter cone.
Pele's hair and other volcanic glass from the fountaining fell within Leilani Estates.
The fountains continued to feed the fast-moving lava flow that traveled NE, and then SE around Kapoho Crater, and into the ocean.
Occasional overflows sent small flows down the sides of the channel.
Lava entering the ocean built a lava delta that by 16 June was just over 130 hectares in area.
A plume of laze rose from the entry points.
An area of thermal upwelling in the ocean out from the visible lava-delta front was visible, suggesting lava flowing on the ocean floor.

Source: US Geological Survey Hawaiian Volcano Observatory (HVO)

Fonte/Source: Global Volcanism Program/Smithsonian Institution


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