Images

The surface breakout that started on February 10 remains active on the coastal plain just east of the main episode 61g lava flow field. The flow front, pictured here, advanced to about 300 m (0.2 miles) from the emergency access road in Hawai‘i Volcanoes National Park, but appeared to be stalled this afternoon.

A Valentine's Day 2017 view of Kīlauea Volcano's summit lava lake, here the surface of the lake is about 21 m (69 ft) below the vent rim. The lake diameter is about 255 m or 840 ft. Careful tracking of the amount of ash emitted by lake processes suggest an important new insight into the supply of magma to Kīlauea's summit. USGS Photo.

University of Washington's research vessel R/V Barnes is loaded with the USGS multichannel seismic system components GeoEel, Chirp, and boom plates.

Campout flow forms several benches at East Ka`ili`ili. August 5, 2006. View is toward the southwest along the coast of Kīlauea Volcano at the eastern edge of the new lava entry. Note multiple benches forming at base of seacliff, which is about 20 m tall.

Close view of lava spilling into the sea at nearest bench in left photo.

This is a helicorder seismogram displaying vertical ground velocities at the summit of Hualālai volcano south of the earthquake epicenters. Each line represents 10 minutes and time increases from left to right. Each line continues on the line below. The seismogram starts at 2 am and ends at 2 pm HST on October 15, 2006.

Webcam view of the lava pond within Pu‘u ‘Ō‘ō crater on July 10, 2007, at 11:19 a.m. H.s.t. Note that the lava level has dropped so the inner edges of the levee on the far side can be seen more clearly.

Webcam view of the lava pond on July 12 at 10:43 a.m. The lava level is higher than on July 10 and completely fills the levees.

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of February 16 is shown in pink, while widening and advancement of the active flow as of February 24 is shown in red. Older Pu‘u ‘Ō‘ō lava flows (1983-2016) are shown in gray.

A U.S. Geological Survey scientist used a custom-built, high-speed camera to remotely measure the temperature of spattering lava on the surface of Kīlauea Volcano's summit lava lake (background). This particular experiment, conducted from the Jaggar Museum overlook in Hawai‘i Volcanoes National Park on December 10, 2016, was part of a NASA-funded research project.

Shallow landslides damaged homes and closed many roads in the San Francisco East Bay region as a result of storms in January and February, 2017.

Today (February 22, 2017), the breakout along the eastern edge of Kīlauea Volcano's episode 61g flow remains active and had advanced approximately 570 m (620 yards) since it was last mapped on February 14.

February 19 Bogoslof eruption plume as seen from Unalaska Island, 53 miles ESE of Bogoslof volcano. Photo taken from helicopter during fieldwork by AVO geologists at 5:22PM, approximately 14 minutes after the start of the eruption.

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of January 12 is shown in pink, while widening and advancement of the active flow as of February 16 is shown in red. Older Pu‘u ‘Ō‘ō lava flows (1983-2016) are shown in gray.

Left: Astronauts James A. Lovell, Jr., and Fred W. Haise, Jr., members of NASA's third team of moon explorers, carried cameras, communications equipment, and an Apollo Lunar Hand Tools scoop during a simulation of a lunar traverse at Kīlauea Volcano in December 1969.

This small-scale map shows Kīlauea's active East Rift Zone lava flow field in relation to the southeastern part of the Island of Hawai?i. The area of the active flow field as of January 12 is shown in pink, while widening and advancement of the active flow as of February 16 is shown in red. Older Pu‘u ‘Ō‘ō lava flows (1983-2016) are shown in gray.

An FTIR instrument is set up on the rim of Halema‘uma‘u Crater to measure volcanic gases from the summit lava lake. The open-path Fourier transform infrared (FTIR) spectrometer continuously measures the gases in a volcanic plume, measuring the relative abundance of each.

A telephoto view of the east lake margin showed that the spattering was focused in small embayments created by promontories of cooled, congealed lava jutting from the vent wall.

At times, spattering along the east lake margin reached heights of 6-9 m (20-30 ft), as shown in this telephoto image.

View of the lava lake within Halema‘uma‘u Crater from the FTIR spectrometer monitoring location. At Hawaiian volcanoes, magma ascends from the mantle more than 60 km (about 40 mi) below the surface, to a reservoir less than 2 km (about 1.2 mi) deep. As the pressure decreases, the gases dissolved in the magma bubble out and escape.

USGS Hawaiian Volcano Observatory office building is located on the rim of Kīlauea Caldera in Hawai‘i Volcanoes National Park.