Images

This false-color image obtained from NASA's Terra satellite on January 19, 2009, shows an ash plume (white plume spreading north, top) erupting from Chaitén Volcano. Red color indicates green vegetation.

This image was captured on Monday, May 6, by the Advanced Land Imager sensor aboard NASA's Earth Observing 1 satellite. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures, and show active or very recently active lava flows.

Another entry point has two larger lava streams entering the water. The lava fragments due to cooling and disruption by the battering surf, and some of these pieces float on the water's surface in front of the entry point (see lower left portion of photo).

Over the past week this spatter cone on the floor of Pu‘u ‘Ō‘ō crater has been the source of several large, but brief, lava flows on the crater floor. Today, the cone was producing pulsating gas jetting sounds.

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.

Over the past week this spatter cone on the floor of Pu‘u ‘Ō‘ō crater has been the source of several large, but brief, lava flows on the crater floor. Today, the cone was producing pulsating gas jetting sounds.

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.

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.

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.

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.

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.

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

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.

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.

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.

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.