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Hawaii Volcano Observatory Update
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The following is the most recent Volcano Update from the Hawaii Volcano Observatory in the Hawaii Volcano National Park. This update is usually current on weekdays. For more detailed information and historical archives visit the HVO Website.

U.S. Geological Survey
Tuesday, June 8, 2021, 8:49 AM HST (Tuesday, June 8, 2021, 18:49 UTC)

19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Activity Summary: Kīlauea Volcano is no longer erupting. No surface activity has been observed by field crews or webcam images over the past week. Sulfur dioxide emission rates remain slightly elevated. It is possible that the Halema‘uma‘u vent could resume eruption or that Kīlauea is entering a period of quiescence prior to the next eruption.

Summit Observations: The most recent sulfur dioxide (SO2) emission rates, measured on June 4, 2021, were 54 tonnes per day (t/d). SO2 emission rates are approaching levels associated with the non-eruptive period from late 2018 to late 2020 (30-35 t/d) and are significantly lower than emission rates that averaged over 800 t/d from mid-February to mid-April. Summit tiltmeters recorded one deflation-inflation cycle over the past week, with mild inflation over the past two days. Seismicity remains stable overall, with earthquake counts and tremor over the past week similar to the previous week.

Halemaʻumaʻu Lava Lake Observations: The lake’s surface is now completely covered by solidified lava crust. No surface activity or evidence of recent surface activity has been observed over the past week, except for minor subsidence on the order of 1-2 meters (3-7 feet). Small, warmer-temperature spots around the rim and in local cavities remain visible in thermal webcam imagery, although at temperatures well below those associated with molten lava. Near-real time webcam views of the lava lake can be found here: https://www.usgs.gov/volcanoes/kilauea/webcams.

East Rift Zone Observations: No unusual activity noted in the region. Geodetic monitors indicate that the summit and upper East Rift Zone—between the summit and Puʻuʻōʻō—is refilling at rates similar to those measured over the past 2 years and before the December 2020 eruption. SO2 and hydrogen sulfide (H2S) emissions from Puʻuʻōʻō were below instrumental detection levels when last measured on January 7, 2021.

Hazard Analysis: Levels of volcanic gas—SO2 and carbon dioxide (CO2)—can remain locally hazardous even though Kīlauea is no longer erupting. SO2 gas emissions have greatly decreased. However, local concentrations of SO2 or hydrogen sulfide (H2S) may persist in downwind areas, and residents may from time to time notice odors of these gasses. Significant hazards also remain around Halemaʻumaʻu from crater wall instability, ground cracking, and rockfalls that can be enhanced by earthquakes within the area closed to the public. Even with decreased effusion rates and no signs of lava lake activity, conditions around Halema‘uma‘u crater remain hazardous.

Vog information can be found at https://vog.ivhhn.org/.

The Hawaiian Volcano Observatory (HVO) continues to closely monitor Kīlauea’s seismicity, deformation, and gas emissions, and maintains visual surveillance of the summit and the East Rift Zone.

More Information:
Kīlauea activity summary also available by phone: (808) 967-8862
Kīlauea webcam images: https://www.usgs.gov/volcanoes/kilauea/webcams
Kīlauea photos/video: https://www.usgs.gov/volcanoes/kilauea/photo-video-chronology
Kīlauea lava-flow maps: https://www.usgs.gov/volcanoes/kilauea/maps
Kīlauea FAQs: https://www.usgs.gov/volcanoes/kilauea/faqs

Subscribe to these messages: https://volcanoes.usgs.gov/vns2/

Summary of volcanic hazards from eruptions: https://www.usgs.gov/observatories/hawaiian-volcano-observatory/hazards

Recent earthquakes in Hawaiʻi (map and list): https://www.usgs.gov/observatories/hawaiian-volcano-observatory/earthquakes

Explanation of Volcano Alert Levels and Aviation Color Codes: https://www.usgs.gov/natural-hazards/volcano-hazards/about-alert-levels



The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawaiʻi.

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