Images

The Kahauale‘a flow has been outlined in this image for comparison with the previous photo.

The Kahauale‘a flow has been outlined in this image for comparison with the previous photo.

Kahauale‘a Cone, shown here, has long been a small oasis in the midst of Pu‘u ‘Ō‘ō lava. New lava from the active Kahauale‘a flow has now surrounded the cone, which has also partly burned. Vent structures the episode 58, active from 2007 to 2011, are in the background just behind Kahauale‘a. Pu‘u ‘Ō‘ō is out of sight to the right.

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 has been outlined in this image for comparison with the previous photo.

South winds permitted clear views into the south portion of the Overlook crater, which is often obscured by thick fume. The bright orange area is the location where lava at the surface of the lake sinks back into the system, with spattering and degassing common in this area.

This photo looks northeast and shows Pu‘u ‘Ō‘ō crater. Recent activity has been focused around a few spatter cones on the crater floor. At the far edge of the crater, a small lava pond has been active and has been the source of flows extending northeast of Pu‘u ‘Ō‘ō. Those flows are visible at the top-center of the photo.

Spattering is common in the area where lava sinks back into the system, and this photo shows these processes are occurring in a small grotto. In the right portion of the photo, the ledge occupying much of the south part of the Overlook crater is visible.

South winds permitted clear views into the south portion of the Overlook crater, which is often obscured by thick fume. The bright orange area is the location where lava at the surface of the lake sinks back into the system, with spattering and degassing common in this area.

Spattering is common in the area where lava sinks back into the system, and this photo shows these processes are occurring in a small grotto. In the right portion of the photo, the ledge occupying much of the south part of the Overlook crater is visible.

A closer look at the flow extending northeast of Pu‘u ‘Ō‘ō. Pu‘u ‘Ō‘ō cone is at the right edge of the photo, and view is towards the northeast. In the foreground, two sources of fume mark the path of the lava tube supplying lava to the flow front. In the top-left, a few sources of smoke mark where the flow margin is burning moss and lichen on older flows.

An active lava lake is contained within the Overlook crater, within Halema‘uma‘u Crater at the summit of Kīlauea Volcano. The summit eruption began on March 19, 2008, and is now nearly five years old. The Hawaiian Volcano Observatory and Jaggar Museum are visible as a small bump on the horizon in the upper right portion of the image.

Participants at the 6th International Workshop on Ash and Aviation (Citeko, Bogor, Indonesia) discuss volcanic hazards and hazard mitigation strategies while visiting the Gede Volcano.

Kīlauea Volcano's summit vent "then and now." In April 2008, a month after it opened, the vent within Halema‘uma‘u Crater was about 115 feet in diameter (left). As of March 2013, it is more than 500 feet across (right). USGS photos.

Breakouts have been active recently in several locations on the coastal plain. The sluggish flows in this photo were about 1.6 km (1 mile) out from the base of the pali, with a more active patch of breakouts mauka of this location. In addition, several areas of breakouts were active very close to the shoreline and ocean entry.

The ocean entry near Kupapa`u Point remains active, with no major changes in appearance over the past few weeks. In this view, the two main entry points are visible, with a smaller third entry point (out of view) just beyond these.

The ocean entry near Kupapa`u Point remains active, with no major changes in appearance over the past few weeks. In this view, the two main entry points are visible, with a smaller third entry point (out of view) just beyond these.

San Francisco Peaks, north of Flagstaff, Arizona, viewed from the northeast. This mountain cluster is the tallest of the San Francisco Volcanic field.

Structure built by Anasazi and Singuan people north of Sunset Crater, Arizona, in Wupatki National Monument. Agriculture began here because cinder from nearby volcanoes trapped water in soil.

To monitor volcanoes, scientists rely on remote monitoring equipment that can operate 24-hours a day and 365-days a year to deliver real-time data. When scientists design and install monitoring stations, they must consider the remoteness of sites, terrain, and winter conditions. Here, rime ice coats a telemetry system that transmits data near Mount St.

This is a closer look at the spatter cone on the northwest side of Pu‘u ‘Ō‘ō's crater floor. The photo was taken from near the site of the webcam on the north rim of Pu‘u ‘Ō‘ō.