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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.

HAWAIIAN VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Friday, October 23, 2020, 2:02 PM HST (Saturday, October 24, 2020, 00:02 UTC)


KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

KĪLAUEA INFORMATION STATEMENT

ACTIVITY SUMMARY

Kīlauea Volcano is not erupting. A small swarm of shallow seismicity over the past 24 hours has occurred near the Ka'ōiki fault system, northwest of Kīlauea's summit. Other Kīlauea monitoring data streams remain stable and show no signs of increased activity.

OBSERVATIONS

On October 22–23, 2020, the US Geological Survey Hawaiian Volcano Observatory (HVO) has recorded over 130 earthquakes beneath the northeastern tip of the Ka'ōiki fault system, about 1 mile (less than 2 km) west of Nāmakanipaio Campground. These earthquakes are occurring in a cluster about 1 mi (2 km) wide and 1–3 mi (2–5 km) below the surface.

The largest event in the sequence was a magnitude-3 earthquake, with the bulk of the events being less than magnitude-2 and not reported widely felt by residents. Reported felt events were described as weak shaking, with a maximum Intensity of III on the Modified Mercalli Intensity Scale.

Clustering of shallow earthquakes in this region does not mean an eruption is imminent. HVO has recorded shallow earthquakes in this area for many decades across several eruptive cycles at both Kīlauea and Mauna Loa. Other monitoring data streams for Kīlauea and Mauna Loa, including ground deformation, gas, and imagery, show no signs of increased activity.

HVO continues to closely monitor geologic changes, seismicity, deformation, and gas emissions at Kīlauea and Mauna Loa volcanoes. HVO will issue additional messages and alert level changes as warranted by changing activity.

For more information on earthquakes in the Kaʻōiki Pali area, please see the Volcano Watch article titled, "Why do swarms of earthquakes occur around the Ka'ōiki Pali?" published by HVO scientists on March 1, 2012: https://www.usgs.gov/center-news/volcano-watch-why-do-swarms-earthquakes-occur-around-ka-iki-pali.


HVO Contact Information: askHVO@usgs.gov

MORE INFORMATION:

Activity summary for Mauna Loa is also available by phone: (808) 967-8866

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

Webcam images: https://www.usgs.gov/volcanoes/mauna-loa/webcams

Photos/video: https://www.usgs.gov/volcanoes/mauna-loa/photo-video-chronology

FAQs of Mauna Loa: https://www.usgs.gov/volcanoes/mauna-loa/faqs

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/volcanoes/mauna-loa/monitoring

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

CONTACT INFORMATION:

askHVO@usgs.gov

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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