(Activity updates are written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.)
KÄ«lauea 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 KÄ«lauea to NORMAL and the Aviation Color Code to GREEN. For definitions of USGS Volcano Alert Levels and Aviation Color Codes, see https://volcanoes.usgs.gov/vhp/about_alerts.html.
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 (https://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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