Images

Mount St. Helens, as viewed from the Castle Lake Overlook.

The flow front of the June 26 breakout (pictured above) has stalled. On the coastal plain today, the closest active breakouts found by HVO geologists were 2.1 km (1.3 miles) upslope from the emergency route. There were a few areas of active pāhoehoe breakouts which varied from sluggish ropey textures to thin and fluid flows.

Cracks on the Kamokuna lava delta continue to develop. These photos from July 31 (left) and today, August 15 (right), highlight changes on the delta during the past two weeks. The yellow numbers mark a few prominent features on the delta (1 & 3) and older sea cliff (2 & 4).

USGS Research Scientist, Meagan Gonneea, talking about the differences between coastal salt marshes and invasive phragmites at the 2017 Woods Hole Science Stroll outreach event

Woods Hole Coastal and Marine Science Center Science Stroll participants; Dann Blackwood, Andrea Toran, Emily Sturdivant, Ellyn Montgomery, Sara Zeigler, Neil Ganju, Seth Ackerman, Laura Brothers, Meagan Gonneea

Woods Hole Coastal and Marine Science Center drone pilot, Emily Sturdivant, lands a drone on target at the 2017 Woods Hole Science Stroll

SeaBOSS Selfies were a big hit at the 2017 Woods Hole Science Stroll.  

Woods Hole Coastal and Marine Science Center drone pilot, Emily Sturdivant, provides a demonstration of drone capabilities at the 2017 Woods Hole Science Stroll

Woods Hole Coastal and Marine Science Center Scientific Programmer, Tarandeep Kalra, talking to children about oceanographic modeling at the 2017 Woods Hole Science Stroll

Aeiral image of Woods Hole, MA taken during the 2017 Woods Hole Science Stroll.  The green USGS tent generated a lot of interest and participation from Science Stroll attendees

This map is similar to the map above but shows a thermal map over the Episode 61g lava flow. Cooler colors (blue and green) show cooled, inactive portions of the flow surface. Hot colors (red and orange) show areas of active surface breakouts.

Side-by-side images from the Hawaiian Volcano Observatory's Thermal Web Camera (HTcam) located on the rim of Halema‘uma‘u before (left) and after (right) lava veneer from the vent wall fell into the lake on July 28, 2017. The collapse scar is circled at right.

While mapping the flow margins, HVO geologists found an opening into an old lava tube system that has been partly filled with episode 61g lava. Most of the cooled lava cascades were intact and sitting on top of rubble from the caved-in roof of the abandoned tube.

At the Kamokuna ocean entry, the lava delta is active and slowly growing. As of today, the delta is about 6.8 acres (2.8 hectares) in size. Many coast-parallel cracks are visible on the delta, including a large crack near the center that spans the entire width of the delta. A few small streams of lava entering the ocean can be seen near the front of the delta.

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of July 10 is shown in pink, while widening and advancement of the active flow as of August 9 is shown in red. Older Pu‘u ‘Ō‘ō lava flows (1983-2016) are shown in gray. The yellow line is the trace of the active lava tube.

The June 26 breakout (lighter-colored flow in the center of the photo) is active on the coastal plain and at the flow front. There's been no significant advancement of the flow front since July 31. Today, active breakouts were located roughly 1.5 km (0.9 mile) from the emergency route.

This time-lapse sequence shows the outgassing plume from the Halema‘uma‘u lava lake at the summit of Kīlauea. The images were captured by a camera on the flank of Mauna Loa on May 19, 2017. As the plume rose from the vent, it reached the atmospheric inversion layer, which effectively capped the height of the plume.

This perched lava channel, which was as much as 150 feet (45 meters) above the ground, carried lava downslope from the Pu‘u ‘Ō‘ō Fissure D vent during episode 58 of Kīlauea Volcano's ongoing East Rift Zone eruption. The channel was the main path for lava between July and November 2007. Episode 58 continued until early March 2011.

GeoGirls collect water quality data at Coldwater Lake and sieve landslide deposits to learn more about the impact of the 1980 eruption and the transport of volcanic sediment.

GeoGirls collect water samples and flow measurements to model the transport of volcanic sediments.

GeoGirls deploy seismometers at Mount St. Helens and learn how to interpret earthquake data.