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USGS Volcano Notice for Aviation - DOI-USGS-HVO-2023-04-29T11:28:43-07:00
(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) | |
(2) Issued: | (20230607/1447Z) |
(3) Volcano: | Kilauea (VNUM #332010) |
(4) Current Color Code: | RED |
(5) Previous Color Code: | ORANGE |
(6) Source: | Hawaiian Volcano Observatory |
(7) Notice Number: | 2023/H159 |
(8) Volcano Location: | N 19 deg 25 min W 155 deg 17 min |
(9) Area: | Hawaii |
(10) Summit Elevation: | 4091 ft (1247 m) |
(11) Volcanic Activity Summary: |
Kīlauea volcano is erupting. At approximately 4:44 a.m. HST on June 7, 2023, the USGS Hawaiian Volcano Observatory detected glow in Kīlauea summit webcam images indicating that an eruption has commenced within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park. 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.
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(12) Volcanic cloud height: | Unknown |
(13) Other volcanic cloud information: | N/A |
(14) Remarks: | Hazard Analysis: The eruption at Kīlauea’s summit is occurring within a closed area of Hawai'i Volcanoes National Park. Therefore, high levels of volcanic gas are the primary hazard of concern, as this hazard can have far-reaching effects down-wind. Large amounts of volcanic gas—primarily water vapor (H2O), carbon dioxide (CO2), and sulfur dioxide (SO2)—are continuously released during eruptions of Kīlauea volcano. As SO2 is released from the summit, it will react in the atmosphere to create the visible haze known as vog (volcanic smog) that has been observed downwind of Kīlauea. Vog creates the potential for airborne health hazards to residents and visitors, damages agricultural crops and other plants, and affects livestock. For more information on gas hazards at the summit of Kīlauea, please see: https://pubs.er.usgs.gov/publication/fs20173017. Vog information can be found at https://vog.ivhhn.org/. |
(15) Contacts: | |
(16) Next Notice: | Kīlauea updates will continue to be issued daily. Should volcanic activity change significantly, a new VAN will be issued. Regularly scheduled updates are posted on the HVO website at https://www.usgs.gov/volcanoes/kilauea/volcano-updates More Information:
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