Categorized | Featured, Sci-Tech, Volcano

Volcano Watch: Kilauea activity update for March 28, 2019

This image is from a temporary monitoring camera on the west rim of Kilauea Caldera. The camera is looking East towards the bottom of the newly enlarged Halemaʻumaʻu crater, although the deepest part of the crater is not visible from this vantage point. The crater from left to right (roughly NNE to SSW) is approximately 1 km (0.6 mi) across. The depth of the crater in the visible image from the rim is several hundred meters. Image courtesy of USGS/HVO Webcam
This image is from a temporary monitoring camera on the west rim of Kilauea Caldera. The camera is looking East towards the bottom of the newly enlarged Halemaʻumaʻu crater, although the deepest part of the crater is not visible from this vantage point. The crater from left to right (roughly NNE to SSW) is approximately 1 km (0.6 mi) across. The depth of the crater in the visible image from the rim is several hundred meters. Image courtesy of USGS/HVO Webcam

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

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

On Tuesday, March 26, the USGS Hawaiian Volcano Observatory lowered the Volcano Alert Level for Kīlauea to NORMAL and the Aviation Color Code to GREEN. For definitions of USGS Volcano Alert Levels and Aviation Color Codes, see volcanoes.usgs.gov/vhp/about_a….

Three earthquakes with three or more felt reports occurred in Hawaiʻi during the past week: a magnitude-2.5 quake 51 km (32 mi) southwest of Kahaluʻu-Keauhou at a depth of 28 km (17 mi) on March 26 at 10:04 p.m. HST; a magnitude-3.0 quake 31 km (19 mi) southeast of Waimea at a depth of 17 km (11 mi) on March 24at 3:43 a.m. HST; and a magnitude-3.5 quake 5 km (3 mi) south of Volcano at depth of 13 km (8 mi) on March 23 at 11:13 p.m. HST.

Deformation signals are consistent with refilling of Kīlauea Volcano’s deep East Rift Zone (ERZ) magma reservoir. Sulfur dioxide emission rates on the ERZ and at Kīlauea’s summit remain low and have been steady over the past several weeks.

Hazards still exist at the lower ERZ and summit of Kīlauea. Residents and visitors near the 2018 fissures, lava flows, and summit collapse area should heed Hawai‘i County Civil Defense and Hawaiʻi Volcanoes National Park closures and warnings. HVO continues to closely monitor Kīlauea for any sign of increased activity.

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

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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