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Volcano Watch: Kilauea activity update for December 6, 2018


Time-lapse panorama of the Kīlauea Caldera Wide Angle from HVO Observation Tower. November 29-December 6, 2018. Images courtesy of USGS/HVO


Thermal camera time-lapse movie at Mile Marker 14.5 on Pahoa-Kalapana Road (Route 130) Nov. 29-Dec. 6, 2018. Images courtesy HDOT


Thermal camera closer time-lapse movie at Mile Marker 14.5 on Pahoa-Kalapana Road (Route 130) Nov. 29-Dec. 6, 2018. Images courtesy HDOT

(Activity updates are written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.)

Kīlauea is not erupting. Low rates of seismicity, deformation, and gas release have not changed significantly over the past week.

Earthquakes continue to occur primarily at Kīlauea’s summit area and south flank, with continued small aftershocks of the May 4, 2018, magnitude-6.9 quake. Seismicity remains low in the lower East Rift Zone (ERZ).

Deformation signals are consistent with slow refilling the middle ERZ. At the summit, tiltmeters showed minor fluctuations this week, with a small deflation-inflation cycle.

Hazardous conditions still exist at both the lower ERZ and summit. Residents in the lower Puna District and Kīlauea summit areas on the Island of Hawaiʻi should stay informed and heed Hawai‘i County Civil Defense closures, warnings, and messages (www.hawaiicounty.gov/active-al…).

The USGS Volcano Alert level for Mauna Loa remains at NORMAL.

No Hawaiʻi earthquakes received three or more felt reports (minimum to be recounted here) this past week.

Please visit HVO’s website (volcanoes.usgs.gov/hvo) for past Volcano Watch articles, Kīlauea and Mauna Loa updates, volcano photos, maps, recent earthquake info, and more. Call 808-967-8862 for weekly Kīlauea updates. Email questions to askHVO@usgs.gov.

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