
Yesterday, my morning commute was enlivened by the sight of Mauna Loa erupting. The eruption started late Sunday night and the report I read, before leaving home, said the eruption was currently confined to the summit crater. That clearly wasn’t the case when I took these photos on the way to work. The quality isn’t great because they’re hand-held, but I think they illustrate the scene reasonably well.
In the top two photos, the red smoke is the glow of the lava, but the white/yellow bits are the lava itself. This was a flow moving down the slope of the volcano.

By the time I got to work, the sky was lightening but the lava still stood out. In the bottom photo, Mauna Kea is left center, with a stunning sunrise developing behind it. Mauna Loa is on the right and the activity can clearly be seen on the left (northeast) slope of the volcano, some way down from the summit.

When I got home, I read that three vents had opened on the northeast rift zone of the volcano, though only one was still active. Flows from Mauna Loa can reach the ocean in a matter of hours, depending on where they’re coming from and going to. This flow is currently heading towards the saddle between Mauna Kea and Mauna Loa, which is mostly a military training area and undeveloped land. The main current danger is from gasses and Pele’s hair, thin strands of brittle volcanic glass, being carried from the volcano to communities downwind. However, new vents could open farther down the rift, bringing lava closer to human habitation.
Changes in eruptions on Mauna Loa can happen pretty quickly so, as usual, the advice here is be prepared and keep tuned to updates on the situation.

































