[ad_1]
HVO/USGS Volcanic Activity Notice
volcano: Kilauea (VNUM#332010)
Current Volcano Alert Level: Warning
Previous Volcano Alert Level: Watch
Current Aviation Color Code: Yellow
Previous aviation color code: Orange
release: Wednesday, June 5, 2024, 10:07 a.m. Hawaii Standard Time
source: Hawaii Volcano Observatory
Notice Number: 2024/H115
Place: 19 degrees 25 minutes north latitude 155 degrees 17 minutes west longitude
altitude: 4091 feet (1247 meters)
area: Hawaii
Summary of Volcanic Activity:
The eruption that began on June 3, 2024, in the southwest part of Kilauea Volcano has paused for 48 hours and is unlikely to erupt again. As a result, the USGS Hawaii Volcano Observatory (HVO) has lowered the ground-level dangerous volcano alert level from “watch” to “warning” and the aviation color code from “orange” to “yellow.”
Lava stopped flowing from the fissure vents at around 9:00am on June 3, and the flow stalled at noon that day. The shaking, outgassing, and incandescence associated with the fissure vents have decreased significantly over the past 48 hours, making it unlikely that the eruption will resume. Overall seismicity and deformation in the summit area, including the eruption area, remain low. While volcanic gas emissions have decreased, they remain well above background levels (100 tonnes per day), and sulfur dioxide emissions were measured at 5,500 tonnes per day yesterday (June 4), down from 12,000-15,000 tonnes per day on June 3.
A map of the lava flow distribution from the June 3 eruption of Kilauea Volcano in the southwest is available at: https://www.usgs.gov/media/images/june-3-2024-kilauea-southwest-rift-zone-eruption-reference-map-updated-10pm-hst.
The last eruption in the area was in December 1974. The 1974 eruption lasted for six hours, while the latest eruption lasted for 8.5 hours.
HVO continues to monitor Kilauea closely for signs of renewed volcanic activity. If there is a significant change in volcanic activity, a new volcanic activity notice will be issued. All recent activity has occurred at the summit and upper rift zones. No unusual activity has been detected in the central or lower east rift zones.
Kilauea Volcano remains hazardous, as described below, but elevated sulfur dioxide gas emissions may continue for days or weeks. Residents and visitors should stay informed and follow guidelines from the County of Hawaii and Hawaii Volcanoes National Park.
For more information on volcanic alert levels and the meaning of aviation color codes, see https://www.usgs.gov/programs/VHP/volcanic-alert-levels-characterize-conditions-us-volcanoes
Recent observations:
(Volcanic cloud height) N/A
(Other volcanic cloud information) N/A
(Trajectory) N/A
(Lava Flow/Dome) N/A
(Lava Flow) N/A
Hazard Analysis:
(Volcanic gas) Sulfur dioxide emissions last from days to weeks and can reach altitudes of 5,000 to 6,000 feet
Comment:
Hazard Analysis:
On June 3, Kilauea volcano erupted in a closed area of Hawaii Volcanoes National Park. The volcanic gas content is high, mainly water vapor (H2O) and sulfur dioxide (SO2)—emissions are the hazard of primary concern because they can have far-reaching effects downwind.2 Gases released from the summit react in the atmosphere to form a visible haze, or volcanic smoke, which has been observed downwind of Kilauea. Volcanic smoke can become airborne and pose a health hazard to residents and visitors, damage crops and other vegetation, and affect livestock. For more information on Kilauea summit gas hazards, see:https://pubs.er.usgs.gov/publication/fs20173017. Vog information can be found athttps://vog.ivhhn.org.
Other significant hazards around Kīlauea Crater include unstable crater walls, ground cracking and rock falls, which can be exacerbated by earthquakes in the enclosed area. This highlights the extreme danger of the rim around Halemaumau Crater, which has been closed to the public since early 2008.
For a discussion of the Kilauea volcano hazard, see:https://www.usgs.gov/observatories/hawaiian-volcano-observatory/hazards.
The Hawaii Volcano Observatory (HVO) continues to closely monitor Kilauea.
See the Hawaii Volcanoes National Park website for visitor information:https://www.nps.gov/havo/index.htm.
Contact information:
Next notification:
Kilauea Volcano updates will be posted daily. If there are significant changes in volcanic activity, a new VAN will be issued. Regular updates are posted on the HVO website at https://www.usgs.gov/volcanoes/kilauea/volcano-updates
More information:
Subscribe to these news: https://volcanoes.usgs.gov/vns2/
Summary of volcanic eruption hazards: https://www.usgs.gov/observatories/hvo/hazards
Recent earthquakes in Hawaii (map and list): https://www.usgs.gov/observatories/hvo
Explanation of Volcano Alert Levels and Aviation Color Codes: https://www.usgs.gov/programs/VHP/volcanic-alert-levels-characterize-conditions-us-volcanoes
[ad_2]
Source link
