November 25th Lava Breakout Advances – New Vent Opens on Northeast Flank of Puʻu ʻŌʻō

The breakout that began as a rupture from the tube supplying the June 27th lava flow continues to advance slowly to the northeast and has reached the forest.

Click to enlarge

Click to enlarge

While the front of the flow is about 3 km (1.9 miles) from Puʻu ʻŌʻō, it has a long way to go to catch up to the surface flows that have persisted for the last several weeks about 3 km (1.9 miles) farther to the northeast.

Click to enlarge

Click to enlarge

A new vent opened on the northeast flank of Puʻu ʻŌʻō during the first week of December. This is the incandescent, fuming trio of holes just below and to the left of center in the accompanying image. While this spot happens to coincide with the trend of a tube that was last active in early 2014, aerial views into the opening suggest lava is welling up from below and not “flowing” like lava in a tube (there is no apparent lava reappearing downslope). Thus, our current interpretation is that this is a new vent that happened to open into the area of this abandoned tube as lava worked its way to the surface. Our interpretation may change, however, as our view into the vent improves, assuming that the opening continues to widen.

This is a view of the new vent from the ground, showing the thin roof that caps the brightly incandescent cavity below.

Skylight onto lava pond on northeast spillway

Skylight onto lava pond on northeast spillway

Views from the air show the cavity to be much larger than the current opening, probably extending at least as far as the sulfur staining in the foreground and back under the mound to the right. Right: A bubbling lava surface could be seen about 5 m (16 ft) below the opening of the new vent when viewed from the air. The size of the opening will likely grow with time, as the narrow septa between the individual holes collapse.

Leave a Reply

Your email address will not be published. Required fields are marked *

I do this to keep the spammers away * Time limit is exhausted. Please reload CAPTCHA.