Kilauea News

Note.I sign focus Kilauea news of June1(59 event).Referencing this time;

Jun2>20 events
Jun3>13 events
Jun4>12 events
Jun7>19 events








 A new eruption has started in the summit caldera of Kilauea volcano. A few hours ago, at approximately 4:44 a.m. local time on June 7, 2023, fissures opened on the floor of Halema'uma'u crater producing lava fountains and flows that now are covering the crater floor.

The USGS Hawaiian Volcano Observatory raised Kīlauea's volcano alert level from WATCH to WARNING and its aviation color code from ORANGE to RED as this eruption and associated hazards are evaluated, the most recent bulletin writes:
"The opening phases of eruptions are dynamic. Webcam imagery shows fissures at the base of Halemaʻumaʻu crater generating lava flows on the surface of the crater floor. The activity is confined to Halemaʻumaʻu and the hazards will be reassessed as the eruption progresses.
HVO will continue to monitor this activity closely and report any significant changes in future notices."




Update:





The effusive eruption at the volcano continues within the summit caldera.
Several fissure vents are erupting low lava fountains that feed flows and have been creating the pool of lava at the bottom of the Halema'uma'u crater.
New eruptive fissures are located in the western part of the crater, judging from a live stream.
Ongoing glowing steam and gas-rich emissions accompany the eruption.
HVO will continue to monitor this activity closely and report any significant changes in future notices.






Update:






The effusive eruption is still continuing at the time of this update and is being confined within the Halema'uma'u crater.
There are no indications of the lava shifting out of the summit region so far.
The eruptive area seems to consist of two-to-three lava fountain clusters and several independent ones characterized by the continuous spattering ejecting hot, fresh and plastic lava clots and lava flows.
Fountain heights decreased after the eruption onset, at about 03:00 PM local time, surpassing 4-9 meters.

Lava flows have engulfed the crater floor and covered the area by about 10 meters depth of lava. A ring of elevated 1-2 meter-high (3-6 feet-high) lava surrounds the perimeter of the crater floor (like a bathtub ring), encircling continued lava flow activity across the crater floor.

The usual pattern of the summit inflation, related to typical eruption onset precursor, reverted to deflation around 05:00 AM local time, hinting a rapid new magma batch release from magma chamber.

Simultaneously, the seismic activity highly dropped with the eruption onset as well and was replaced by the continuous tremor associated with flux of magma.

Measurements of SO2 concentrations in the atmosphere show elevated levels, emissions reached to a 65,000 tonnes yesterday.

Locals in Pāhala, located about 30 km (20 miles), reported a very light dust and Peleʻs hair this morning.

The aviation color code remains at RED.

HVO will continue to monitor this activity closely and report any significant changes in future notices."
Source: Hawaiian Volcano Observatory volcano activity update 8 June 2023


Update Jun9:





The effusive eruption at the volcano continues at stable levels.
The most active fountaining continues at the main chain of eruptive vents feeding lava into the growing lava lake based on the crater floor.
Typical slabs of dark, solidified crust continue to shift on the lava lake surface accompanied by typical bright orange lava glow between them, the best visible at night, dawn or dusk.
Attached is a recent video of the USGS HVO, depicting an eruptive fissure in the wall of the pit crater that produce spilling lava into the lava lake system.





The HVO observatory lowered the volcano's alert level from WARNING to WATCH as the average effusion rate has waned over the past hours and no infrastructure is being threatened.
The ongoing eruption does not pose any particular hazardous ash emissions into the atmosphere outside of the area within Hawai'i Volcanoes National Park.
Despite the upper mentioned fact, the eruption is expected to continue and remains confined within the Halema'uma'u crater.
An average effusion rate of approx. 150 m3/sec is estimated for initial 24 hours, based on the lava lake level rising. However, this measurement might be skewed and doesn't account for vesiculated lava and variations in topography across the surface of the crater floor.
Several small lava fountains continue to be active in the central-eastern crater area including the fissure vent in the western wall of the pit crater. The leaking lava from all vents continues to feed the pool of lava, progressively covering nearly the whole crater floor region.
Fountain heights decreased after the eruption onset and remain up to 10 meters (33 ft) tall.
The lava level has declined by 2 meters (6 ft) over the past day, the most likely due to volcanic gas loss.
The ongoing deflationary trend dominates rather than the inflationary one as magma intrusion is being freely emitted from beneath the surface. This also refers to the continuous volcanic tremor associated with flux of magma.
Near-frequent gas-steam plumes, containing some amount of ash, continue to rise up to about 8,000 ft-10,000 ft elevation.
Source: Hawaiian Volcano Observatory volcano activity update 9 June 2023


Update 6/10:






The effusive eruption within the Halemaʻumaʻu crater remains active.
The fountaining continues in the summit caldera by numerous small fountains on the western crater floor area and in the southwestern wall of the pit crater.

The ongoing spattering in the SW wall, which has been building a new steep-sided spatter cone (also called a hornito currently) above the eruptive fissure, is visible in the live stream here. Emissions of incandescent, fluid lava by fountaining and lava flows feeding the westernmost part of the crater floor.
Multiple active eruptive vents, effusing lava flows, cover a broad part of the western half of the Halemaʻumaʻu crater in a horseshoe-shaped uplifted area.
A much smaller area of the eastern portion of the crater floor remained active during the night on 8 June.

The active lava lake is centered within the uplifted area and fed by a vent in its northeast corner. The level of the central lava lake has increased by approximately 1.5 meters (5 feet), as measured by laser rangefinder.
Source: Hawaiian Volcano Observatory volcano activity update 10 June 2023

A time-lapse video of the hornito in the SW wall showing its partial collapse and multiple lava flows (source: USGS)

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