Images

The lava level was high enough at the lava lake this evening that bits of spatter were reaching the rim of the Overlook crater.

The June 27th flow covers much of the top of the photograph, and recent expansion of the flow margins has sent lava cascading into one of the ponds on the 2007 perched lava channel. This 2007 lava fills the bottom of the photograph, and is covered with yellow alteration.

This satellite image was captured on Monday, April 20, 2015 by the Landsat 8 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 lava. White areas are clouds.

Active surface flows on the northeast flank of Pu‘u ‘Ō‘ō on March 12, 2015. The activity is a continuation of a breakout that began on February 21, which diverted lava from the tube system and helped to starve the supply of lava to the June 27th flow front near Pāhoa.

This map shows recent changes to Kīlauea's active East Rift Zone lava flow field. The area of the flow on April 3 is shown in pink, while widening and advancement of the flow as of April 9 is shown in red. We were not able to map some parts of the flow field with breakouts today due to poor weather, and these areas are denoted in boxes.

A closer look at the leading tip of the farthest downslope breakout. The tip of the breakout was burning forest, and was 6.9 km (4.3 miles) northeast of the June 27th vent on Pu‘u ‘Ō‘ō.

Breakouts continue northeast of Pu‘u ‘Ō‘ō in three main areas: 1) at the northern base of Pu‘u ‘Ō‘ō cone, 2) north of Pu‘u Kahauale‘a and 3) about 6 km (4 miles) northeast of Pu‘u ‘Ō‘ō. This photograph looks east and shows the breakout about 6 km from Pu‘u ‘Ō‘ō.

This photograph looks upslope and shows another narrow lobe on the breakout that is roughly 6 km (4 miles) northeast of Pu‘u ‘Ō‘ō. This lobe was moving along the south margin of the June 27th flow.

Plot of earthquakes in Mount Shasta region greater than M1.0 from April 3, 2010 to April 3, 2015.

This map shows recent changes to Kīlauea's active East Rift Zone lava flow field. The area of the flow on March 24 is shown in pink, while widening and advancement of the flow as of April 3 is shown in red.

This map overlays georegistered mosaics of thermal images collected during a helicopter overflight of the three areas of breakouts near Pu‘u ‘Ō‘ō on April 3. The perimeter of the flow at the time the imagery was acquired is outlined in yellow.

A closer look at the new pit in the western portion of Pu‘u ‘Ō‘ō Crater. Views inside the crater with the naked eye were obscured by thick fume, but the thermal images (right) revealed two areas of ponded lava, separated by a pile of collapse rubble, deep within the pit.

A closer look at the lava flow field near Pu‘u ‘Ō‘ō. Pu‘u ‘Ō‘ō is in the upper left portion of the photograph. Slightly above and to the right of the center of the photograph, the light colored area of lava is the active breakout (which started on February 21) on the north flank of Pu‘u ‘Ō‘ō.

In the time since our last overflight (March 24), a new collapse pit has formed in the western portion of Pu‘u ‘Ō‘ō Crater. This circular pit can be seen in the lower left portion of the photograph, and measures about 27 m (roughly 90 ft) in diameter. Numerous hot cracks were observed in this general area during previous visits on foot.

Breakouts remain active in three general areas near Pu‘u ‘Ō‘ō: 1) at the northern base of Pu‘u ‘Ō‘ō, 2) just north of Kahauale‘a, and 3) the most distal breakout, about 6 km (4 miles) northeast of Pu‘u ‘Ō‘ō. This photograph shows much of the most distal breakout, a portion of which was burning forest. Pu‘u ‘Ō‘ō can be seen near the top of the photograph.

The breakout north of Kahauale‘a has one lobe that has traveled along the west side of the perched lava channel that was active in late 2007. This breakout consists of blue glassy pāhoehoe, which is easily visible in the photograph on the left. The white box shows the rough extent of the thermal image on the right.

The pāhoehoe flows that moved through Kalapana in 1990 (left) were hotter, more fluid, and faster-moving than the lava flow that reached to within 155 m (170 yds) of Pāhoa Village Road in October 2014 (right). USGS photos.

This map shows recent changes to Kīlauea's active East Rift Zone lava flow field. The area of the flow on March 10, before shutting down near Pāhoa, is shown in pink, while widening and advancement of the flow based on satellite imagery from April 1 is shown in red.

There are several incandescent and outgassing hornitos on the floor of Pu‘u ‘Ō‘ō's crater, including the one shown here, which is at the northeast edge of the crater. Recent flows from the hornito appear black.

This map shows the changes to Kīlauea's active East Rift Zone lava flow field. The area of the flow on March 17 is shown in pink, while widening and advancement of the flow as of March 24 is shown in red. Small changes west of Pu‘u Kahauale‘a are not shown, as that part of the flow field was hidden by Pu‘u ‘Ō‘ō's gas plume at the time of mapping.

Breakouts are active in three general areas near Pu‘u ‘Ō‘ō: at the northern base of Pu‘u ‘Ō‘ō, north Kahauale‘a, and about 6 km (4 mi) northeast of Pu‘u ‘Ō‘ō. The distal breakout and the breakout north of Kahauale‘a are both burning forest. There is no eruptive activity downslope from the distal breakout (nothing active near Pāhoa).