Images

After a 12 km (7.5 mile) journey from the vent on Pu‘u ‘Ō‘ō cone through a lava tube, lava pours into the ocean in narrow streams at one of the eastern entry points.

This is a typical GPS monitoring station example from Hualālai Volcano.

The September Lobe monitoring station is part of the network of monitoring stations that detects and reports subtle changes in the volcanic vent area. At 2150 m (about 7100 ft) elevation, maintenance is performed during good weather to keep the station fully functional.

Breakouts have diminished over the past few days on the Kahauale‘a flow (heading northeast of Pu‘u ‘Ō‘ō), and the flow front has not advanced significantly since April 8. Compare today's thermal image with that from the April 8 overflight. During today's flight, there were no active breakouts at the flow front.

A vigorous flow was erupted on the floor of Pu‘u ‘Ō‘ō crater starting early this morning from a cone near the north rim, but a smaller flow was also erupted from a spatter cone near the south rim around noon. This photo captures a burst of spatter from the southern cone as the small flow was erupted.

Lava erupted this morning from the cone near the north rim of Pu‘u ‘Ō‘ō crater, with a small portion of the flow emptying out onto the east spillway. This new flow brings the floor of the crater slightly closer to the north crater rim.

Cascades Volcano Observatory (CVO) staff in front of the CVO office building in Vancouver, Washington, May 1, 2018

Map showing locations of USGS NetQuakes recorders and epicenter of M3.2 earthquake occurring on April 3, 2013. Around the map are plots of the strongest shaking recorded at each of the NetQuakes sites associated with this earthquake. The plots are not adjusted to reflect differences in shaking among the individual sites.

This steep spatter cone near the north rim of Pu‘u ‘Ō‘ō crater was making loud gas jetting sounds, presumably due to gas forced through the small glowing holes near the top of the cone.

Another view of the ocean entry points and discolored water at Kupapa‘u. The thermal camera today showed that water surface temperatures were up 50 degrees Celsius (122 degrees Fahrenheit) a short distance out from the entry points. Just beyond the ocean entry, the light colored areas represent active breakouts. On the pali, fume marks the path of the lava tube.

View looking northeast towards Kalapana from the ocean entry. The small white dots in the distance are houses in Kalapana Gardens subdivision.

View looking northeast towards Kalapana from the ocean entry. The small white dots in the distance are houses in Kalapana Gardens subdivision.

The Kahauale‘a flow remains active, with the flow front today about 4.9 km (3 miles) northeast of Pu‘u ‘Ō‘ō. The flow is still on earlier Pu‘u ‘Ō‘ō flows, but has been slowly approaching the edge of the forest.

Numerous ocean entry points were active today at Kupapa‘u, with a plume of discolored water drifting west.

The two active flows (Kahauale‘a and Peace Day) are both fed from vents high on Pu‘u ‘Ō‘ō cone. This view (looking southwest) shows Pu‘u ‘Ō‘ō crater. In the foreground, a lava pond and small spots of orange glow mark the location of the vent for the Kahauale‘a flow.

A closer look at the start of the lava tube on the Kahauale‘a flow, near the rim of Pu‘u ‘Ō‘ō crater. See photo above for aerial view. Unfortunately a direct view of the lava stream was not available here.

Pele's hair covers much of the ground in the area immediately downwind of the vent at Halema‘uma‘u Crater. Accumulations about a meter (yard) wide are found on the windward sides of the curbs in the Halema‘uma‘u parking lot, which is closed to the public because of the ongoing volcanic hazard (May 3, 2012).

Scientists performing monitoring duties in the Alaska Volcano Observatory operations room.

A model of the magma reservoir 1.5 km (1 mi) below Halema‘uma‘u Crater at the summit of Kīlauea Volcano.

The Kahauale‘a flow, at the center of the photo, has reached 4.4 km (2.7 miles) northeast from its source in Pu‘u ‘Ō‘ō, which is in the background.

The Kahauale‘a flow, at the center of the photo, has reached 4.4 km (2.7 miles) northeast from its source in Pu‘u ‘Ō‘ō, which is in the background.