Maunaloa volcano (Big Island, Hawai'i): new eruption in summit caldera, alert status raised to Red
Mon, 28 Nov 2022, 10:4310:43 AM | BY: MARTIN
Small lava fountains and spreading lava flow field within Moku‘āweoweo summit caldera (image: HVO)
A new eruption started at Maunaloa volcano in the evening of 27 November at about 11:30 PM local time yesterday.
The thermal camera of the new effusive eruption at Maunaloa volcano (image: HVO)
A new lava effusion began to ooze out within Moku'āweoweo summit caldera. From available webcams and thermal images, it seems to open a new chain of vents producing small lava fountains (so-called "curtain of fire"), where they form a spreading field of lava slowly covering the crater floor.
Therefore, a decision has been made by authorities and the HVO volcano observatory to rise Volcanic Alert Level to "Red".
Winds may carry volcanic gas and possibly fine ash and typical Hawaiian-type phenomena Pele's hair downwind.
In order to mitigate risk, local residents, threatened by lava flows, are recommended to study preparedness and refer to Hawai'i County Civil Defense information for further guidance.
The HVO continues: "Based on past events, the early stages of a Mauna Loa eruption can be very dynamic and the location and advance of lava flows can change rapidly. If the eruption remains in Moku'āweoweo, lava flows will most likely be confined within the caldera walls. However, if the eruptive vents migrate outside its walls, lava flows may move rapidly downslope.
HVO is in close consultation with emergency management partners and will be monitoring the volcano closely to provide further updates on activity. As soon as possible, HVO will conduct aerial reconnaissance to better describe the eruption and assess hazards."
Source: Hawaiian Volcano Observatory volcano activity update 28 November 2022
Mon, 28 Nov 2022, 10:30
Wed, 16 Nov 2022, 15:00
Mauna Loa volcano (Hawaiian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 9 November-15 November 2022 (Continuing Activity)
HVO reported continuing unrest at Mauna Loa during 9-15 November. The seismic network detected 27-74 daily small-magnitude (below M 3) earthquakes 2-5 km beneath Mokua'weoweo caldera and 6-8 km beneath the upper NW flank of Mauna Loa. An M 3.6 earthquake occurred NW of the summit on 9 November at 0621. ... Read all