Images

Gas sampling in Sherman Crater, Mount Baker, Washington. Panoramic photograph with USGS scientist in center-left of photo beneath fumarole.

Enthusiastic students during a Mount Rainier Teacher Workshop, Washington.

USGS CVO staff member assisting a teacher with mineral identification during July 2011 Mount Rainer Teacher Workshop.

A Scroll down to the photo taken on June 29 to compare the amount of uplift the floor of the crater has endured in the last month. This photo was taken from a similar spot to the lower right of the three photos posted that day.

View looking south across Newberry caldera towards the Big Obsidian flow (left of center) and Paulina Peak, with Paulina Lake in foreground. Photo taken from the north rim of the caldera.

Gas sampling with a CO2 Infrared Spectrometer at Mount St. Helens' September Lobe lava dome, Washington.

Aerial view looking southwest into Pu‘u ‘Ō‘ō crater with its lava lake (shiny surface) perched 5-8 m above the surrounding lava flows.

Clean up of ash in Argentina following the Puyehue-Cordón Caulle 2011 eruption.

Dumping ash cleaned up in Argentina during the PCC eruption in 2011.

Frank Perret (left) and Thomas Jaggar (right) examine Cone Crater, Kīlauea southwest rift zone, during a return visit by Perret in 1914.

Near-vertical view down into the Overlook vent collapse crater. The partly destroyed visitor overlook is at lower right. The gray surface of the lava lake at the bottom of the pit is faintly visible through fume. North is toward the top of the photo.

A third view of the erupting spatter cone, from the south.

A new ocean entry started overnight, fed by a western branch of the active flow. The light gray-colored new flow shows up well in the cloud shadow at left edge of the photo. An eastern branch of the flow continues to advance slowly toward Kalapana Gardens, which is visible at the upper right.

This composite image combines a thermal image with a normal photograph of the coastal plain and pali. The active flow field is split into several lobes, and this image shows the eastern lobe that has been approaching Kalapana Gardens subdivision. Active lava has reached the end of the paved access road, where the County lava viewing area is.

This composite image shows the west lobes that are active on the coastal plain. The east lobe, shown in the other composite image, extends of view to the right. Like the other composite image shown today, hot colors (yellow, white) show active areas of the flow field, while the cooler colors (red, purple) show recent but inactive flows.

Aerial view looking south toward a lava flow advancing through forest along the Roger James fishing access road. The recently active Puhi O Kalaikini delta is to the left. The current ocean entry at Ki is at upper right.

Aerial view of the Ki ocean entry with several narrow streams of lava pouring into the ocean.

View of the active lava lake at Halema‘uma‘u. The lava upwells at the upper right corner of the lake (north) and sinks back down at lower left (south) where weak spattering is occurring.

A close-up view of the small ocean entry from the eastern branch of lava flows near Kalapana.

Spatter being ejected from the newly formed vent.

Earlier this week, lava began erupting from a vent on the floor of Pu‘u ‘Ō‘ō crater. The mound on the right side of the photo is the vent producing lava flows, slowly filling the east side of the crater.