Images

Flooding from the St. Vrain River near Longmont, Colo., damaged portions of Highway 119, closing sections of the highway off from traffic. The river is one of many that flooded during a significant September 2013 rain event along Colorado's Front Range, damaging or destroying several USGS streamgages.

A USGS Colorado Water Science Center field crew installs a temporary streamgage and takes streamflow and water level measures on the St. Vrain River off Highway 119 near Longmont, Colo. The river is one of many that flooded during a significant September 2013 rain event along Colorado's Front Range, damaging or destroying several USGS streamgages.

Photo taken by Jonathan Godt, USGS Geologic Hazards Team. Monday, Sept. 16. Landslide at northwest flank of Twin Sisters Peak near Rocky Mt. National Park.

This bridge is at 75th Street east of Boulder showing Boulder Creek at flood stage (5000 cfs) on Friday, September 13, 2013. When looking west (upstream), the USGS streamgage is on the right.

Numerous rivers flooded during a significant September 2013 rain event along Colorado's Front Range, damaging or destroying several USGS streamgages. In response, USGS field crews measured flood flows, made gage repairs, and assessed sites to replace those gages destroyed. 

This flooded culvert is located on Monarch Road just east of the Diagonal Highway in Boulder, Colo.

Numerous rivers flooded during a significant September 2013 rain event along Colorado's Front Range, damaging or destroying several USGS streamgages. In response, USGS field crews measured flood flows, made gage repairs, and assessed sites to replace those gages destroyed. 

Algae along nearshore at Chimney Beach, Lake Tahoe.

Glacier Peak volcano viewed from the west, Washington.

The Hawaiian Volcano Observatory (HVO) and Jaggar Museum are located at the summit of Kīlauea Volcano, and are visible atop the cliff to the right, on the edge of Kīlauea Caldera. HVO is about 2 km (1.25 miles) north-northwest of the lava lake in Halema‘uma‘u, fuming (but not directly visible) at the left edge of the photo.

The Kahauale‘a 2 flow is fed from a spatter cone on the northeast edge of Pu‘u ‘Ō‘ō's crater. Today, this spatter cone, which is about 6 m (20 ft) tall, was weakly spattering from it top.

Early morning view of Pu‘u ‘Ō‘ō, looking toward the southwest. The fume rising from the bottom of the photo marks the trace of the lava tube carrying lava to the Kahauale‘a 2 flow front.

The Kahauale‘a 2 flow is fed from a spatter cone on the northeast edge of Pu‘u ‘Ō‘ō's crater. Today, this spatter cone, which is about 6 m (20 ft) tall, was weakly spattering from it top.

Early morning view of Pu‘u ‘Ō‘ō, looking toward the southwest. The fume rising from the bottom of the photo marks the trace of the lava tube carrying lava to the Kahauale‘a 2 flow front.

The Hawaiian Volcano Observatory and Jaggar Museum are located near the summit of Kīlauea and are visible atop the cliff to the right. They are about 2 km (1.25 miles) north-northwest of the lava lake in Halema‘uma‘u, fuming (but not directly visible) at the left edge of the photo.

Early morning view of Pu‘u ‘Ō‘ō, looking toward the southwest. The fume rising from the bottom of the photo marks the trace of the lava tube carrying lava to the Kahauale‘a 2 flow front.

The Kahauale‘a 2 flow is fed from a spatter cone on the northeast edge of Pu‘u ‘Ō‘ō's crater. Today, this spatter cone, which is about 6 m (20 ft) tall, was weakly spattering from it top.

At 9:48 PM on Friday, August 23, 2013, a collapse of a piece of the wall above the lava lake in Halema`uma`u triggered a small explosion. The explosion bombarded the rim of Halema`uma`u around the old visitor overlook with molten gobs of spatter as big as dinner plates.

USGS diver taking a core of a 100-year-old coral to allow reconstruction of past ocean temperatures in St. Thomas, U.S. Virgin Islands.

Aerial view toward the southwest of the actively erupting cone within Veniaminof caldera. The white steam plume is produced where a lava flow is descending the side of the cone and melting snow and ice. The darker colored, ashy plume is rising in bursts from the active vent.

USGS scientists Robert Sickler (left) and Rufus Catchings (right) carrying an auger to a drill hole for seismic survey.