Images

USGS scientists use an acoustic doppler current profiler to measure streamflow and water currents at Ditch 14 near Fargo, ND.

Research vessel (R/V) Marcus G. Langseth, operated by Lamont-Doherty Earth Observatory's Office of Marine Operations, can deploy several kilometers of cable to collect seismic data from beneath the seafloor.

HVO staff and volunteers map run-up elevations and inundation distances of tsunami waves that reached the shores around Hawai‘i Island following the magnitude-9.0 earthquake in Japan.

Flood of April 25, 2011, at U.S. Geological Survey (USGS) streamflow-gaging station 07048490, Town Branch tributary at Highway 16 at Fayetteville, Arkansas. Photograph by D.M. Wagner, Lower Mississippi-Gulf Water Science Center.

SIR 2016–5081

Flood of April 25, 2011, at USGS streamflow-gaging station 07048600, White River near Fayetteville, Arkansas. Photograph by K.M. Hubbs, Lower Mississippi-Gulf Water Science Center.

SIR 2016–5081

Aerial photograph of Cinder Lake, San Francisco Mountain, and adjoining neighborhoods, Coconino County, Arizona.

An early morning view of the fountaining we encountered at the western fissure on Sunday, March 6, at 7:20 a.m. Particles were thrown up to 15 m (50 ft) high at this point and the intensity and height increased over the next two hours.

The channelized flow from the western vent complex advanced significantly downslope through forest within the Hawai‘i Volcanoes National Park.

The front of the advancing ‘A‘ā flow is about 4 m (13 ft) thick.

View looking down onto the northeastern vent.

Views into the Halema‘uma‘u vent have been largely obscured by fume over the past several days, and the only consistent views have been with a thermal camera, which can "see" through the fume. This thermal image was taken at a nearly vertical angle from a helicopter, in order to see the bottom of the extremely deep and narrow vent cavity.

Lava was reaching heights above the tree line.

Measuring the flow thickness from another section of the ‘A‘ā flow, using a 1 m (3.2 ft) orange pole for scale.

Lava fountains from the northeastern vent of the Kamoamoa eruption. Though it is an impressive sight, the Pu‘u ‘Ō‘ō cone in the background, and several hundred meters higher, puts the current activity into perspective.

Lava, erupting from the southwestern vent of the Kamoamoa eruption, fountains above the surrounding forest.

A piece of spatter ejected on March 7, 2011. Handheld GPS for scale

Lava from the erupting fissure produced a large flow that is moving southeast through the adjacent forest.

The east rift zone eruption is currently in a hiatus. The east and west Kamoamoa fissures are still fuming, but no lava is erupting. Pu‘u ‘Ō‘ō is the fuming cone in the background.

Fume from Pu‘u ‘Ō‘ō has diminished enough to see a portion of the rubble-filled crater floor.

Gobs of spatter solidified in the remaining trees. The spatter was erupted from the first fissure to open on March 5.

Overview of the Kamoamoa eruption looking south. The northeastern vent is to the left, and the southwestern vent is to the upper right. A river of lava, erupting from the southwestern vent, can be seen advancing toward the southeast through forest within Hawai‘i Volcanoes National Park.