Images

The flow front of the Kahauale‘a 2 flow has cut a narrow swath through forest northeast of Pu‘u ‘Ō‘ō. The narrow lobe at the front is now inactive, with the main area of surface flows about 2km (1.2 miles) behind the end of this lobe. Some of these surface flows are slowly expanding northward into the forest, creating vegetation fires.

The Kahauale‘a 2 flow remains active, and continues to slowly expand into the forest northeast of Pu‘u ‘Ō‘ō. The photo shows the main area of vegetation fires, along the north margin of the flow. Mauna Loa can be seen in the distance in the upper right.

It was remarkably clear during today's overflight of Kīlauea's east rift zone. This photo is taken from Pu‘u ‘Ō‘ō, and looks northwest. Mauna Kea is at the right, and Mauna Loa is at the left. In front of the summit of Mauna Loa, the degassing plume from the lava lake at Kīlauea's summit is rising vertically.

This photo looks southwest, and shows Pu‘u ‘Ō‘ō. The northeast spatter cone on the east rim of the crater is near the center of the photo, and is the vent area for the Kahauale‘a 2 flow.

The flow front of the Kahauale‘a 2 flow has cut a narrow swath through forest northeast of Pu‘u ‘Ō‘ō. The narrow lobe at the front is now inactive, with the main area of surface flows about 2km (1.2 miles) behind the end of this lobe. Some of these surface flows are slowly expanding northward into the forest, creating vegetation fires.

This thermal image shows Pu‘u ‘Ō‘ō (see visual photograph at left for equivalent view). Recently, the southeast and northeast spatter cones have produced small overflows out of the crater, shown clearly here by their warm temperatures.

This thermal image shows Pu‘u ‘Ō‘ō (see visual photograph at left for equivalent view). Recently, the southeast and northeast spatter cones have produced small overflows out of the crater, shown clearly here by their warm temperatures.

This thermal image shows the front of the Kahauale‘a 2 flow. A narrow lobe at the very front is now inactive (evident by the slightly lower surface temperatures), while the main area of active surface flows (shown by white areas) are farther back from this leading edge.

This photo looks southwest, and shows Pu‘u ‘Ō‘ō. The northeast spatter cone on the east rim of the crater is near the center of the photo, and is the vent area for the Kahauale‘a 2 flow.

Incandescent skylights adorn the spatter cone and the lava tube in this close shot of the source for the Kahauale‘a 2 flow. The lighter-colored flows in the foreground are recent flows which broke out from the near side of the spatter cone. Webcams and other monitoring equipment dot the north rim of Pu‘u ‘Ō‘ō in the background.

Lava erupted a few times from two different spatter cones on Pu‘u ‘Ō‘ō's crater floor over the past few weeks. These show up as the lighter-colored flows on the near (southeast) flank of Pu‘u ‘Ō‘ō. The larger spatter cone to the right, with the obvious fume trace leading away from it to the right (marking the lava tube), is the source of the Kahauale‘a 2 flow.

Lava erupted a few times from two different spatter cones on Pu‘u ‘Ō‘ō's crater floor over the past few weeks. These show up as the lighter-colored flows on the near (southeast) flank of Pu‘u ‘Ō‘ō. The larger spatter cone to the right, with the obvious fume trace leading away from it to the right (marking the lava tube), is the source of the Kahauale‘a 2 flow.

The tip of the Kahauale‘a 2 flow was 7.3 km (4.5 miles) from Pu‘u ‘Ō‘ō when mapped on November 21. Active breakouts were scattered all across the flow up to about 4 km back from the front.

Pu‘u ‘Ō‘ō looms in the background in this photo taken from about 4 km (2.5 miles) away. The source of the Kahauale‘a 2 flow—a spatter cone at the northeast edge of Pu‘u ‘Ō‘ō's crater floor—forms the knuckle-like bump just above the center of the photo. The Kahauale‘a 2 lava tube is marked by the fuming areas that extend to the right down the flank of Pu‘u ‘Ō‘ō.

Lava erupted a few times from two different spatter cones on Pu‘u ‘Ō‘ō's crater floor over the past few weeks. These show up as the lighter-colored flows on the near (southeast) flank of Pu‘u ‘Ō‘ō. The larger spatter cone to the right, with the obvious fume trace leading away from it to the right (marking the lava tube), is the source of the Kahauale‘a 2 flow.

Incandescent skylights adorn the spatter cone and the lava tube in this close shot of the source for the Kahauale‘a 2 flow. The lighter-colored flows in the foreground are recent flows which broke out from the near side of the spatter cone. Webcams and other monitoring equipment dot the north rim of Pu‘u ‘Ō‘ō in the background.

Mount Adams viewed from the southeast.

USGS Photo, looking north, at what remained of Lake Waiau on September 26, 2013. The water area was just 15 meters (yards) wide at this time. Prior to 2010, the lake occupied the entirety of the now-dry lake bed, which is about 100 meters (yards) wide. The astronomical telescopes at the summit off Mauna Kea are visible on the skyline.

_{CSAV International Program participants from 2011 came from volcano observatories in the Philippines, Democratic Republic of Congo, Costa Rica, Mexico, El Salvador, Colombia, Comoros, and Indonesia.}

Very few surface flows have been observed in Pu‘u ‘Ō‘ō crater over the past month, but the crater today was far from quiet. The spatter cone shown here, in the northern portion of the crater, was producing a loud, continuous jetting sound resulting from gas being forced through a tiny opening at the peak.

No activity was observed on the Peace Day flow on today's overflight, meaning that the Kahauale‘a 2 flow is now the sole active flow. The Kahauale‘a 2 flow today had reached 6.4 km (4.0 miles) northeast of Pu‘u ‘Ō‘ō, and was burning vegetation around the forest boundary.