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Mauna Loa Eruption Migrates to Northeast Rift Zone, Several Fissures Open

5:45 PM · Nov 28, 2022

USGS has just announced at 7:20 am HST that the Mauna Loa eruption has migrated from the summit and several vents/fissures have opened up in the Northeast Rift Zone. They also released photos showing the flows. The lava flows are not threatening any downslope communities and indications are that the eruption will remain in the Northeast Rift Zone. Here is the full release by HVO/USGS at 7:20 am HST: "The eruption of Mauna Loa has migrated from the summit to the Northeast Rift Zone where fissures are feeding several lava flows. HVO staff on an overflight at approximately 6:30 a.m. HST confirmed fissures at high elevations within Hawai‘i Volcanoes National Park are feeding lava flows upslope of the Mauna Loa Weather Observatory. Lava flows are not threatening any downslope communities and all indications are that the eruption will remain in the Northeast Rift Zone. Volcanic gas and possibly fine ash and Pele's Hair may be carried downwind. Residents at risk from Mauna Loa lava flows should review preparedness and refer to Hawai‘i County Civil Defense information for further guidance. Based on past events, the early stages of a Mauna Loa rift zone eruption can be very dynamic, and the location and advance of lava flows can change rapidly. HVO is in close consultation with emergency management partners and will monitor the volcano closely to provide further updates on activity."

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