Images

This figure shows a comparison of ongoing activity in Halema‘uma‘u, at the summit of Kīlauea, with a 2007 lava channel on Kīlauea's East Rift Zone. On the left, a photo shows the levee that is containing the active perched lava lake in Halema‘uma‘u.

A close-up aerial view of the southern active lava lake margin within Halema‘uma‘u crater, at Kīlauea summit. The formation of the levee containing the “perched” active lava lake (center to upper-right) is partially due to crustal plates from the active lake surface being pushed onto the rim of the lava lake.

A telephoto view of the west vent within Halema‘uma‘u crater taken during a Hawaiian Volcano Observatory helicopter overflight of Kīlauea summit. The west vent continues to supply lava into the active western portion of the lava lake from two adjacent inlets at its base (center-left).

An aerial view of the western portion of the lava lake within Halema‘uma‘u crater at the summit of Kīlauea. The west vent (upper-right) continues to erupt lava into the perched active portion of the lava lake. The main island, which remains trapped in place by the solidified lava crust surrounding it, is visible at the bottom of the photo. USGS photo taken by L.

A helicopter overflight on March 26, 2021, at approximately 8 a.m. HST allowed for aerial visual and thermal imagery to be collected of the eruption within Halema‘uma‘u crater at the summit of Kīlauea Volcano.

The Columbia River flowing through the Hanford reach of the arid Columbia River basin, eastern Washington. This reach is one of the few undammed segments of the Columbia River within the United States. Photograph taken from the White Bluffs, composed of sediment deposited in late Miocene and Pliocene Lake Ringold which occupied the Pasco Basin.

During today’s HVO helicopter overflight of the Kīlauea summit eruption, no major changes were observed. As the west vent continues to erupt lava into the active lava lake, volcanic gas emissions remain elevated, with a visible plume rising from the western vent (upper-right).

Morning light illuminates the active west vent spatter cones from the ongoing Halema‘uma‘u eruption at Kīlauea Volcano's summit on Friday, March 26, 2021. Several of the cones were actively degassing but no spatter or lava flows were observed. USGS Photo by K. Lynn.

Looking downstream (south) at USGS streamgage 08223400 Rio Grande at Alamosa NWR near Alamosa, CO; non-contact radar suspended on the bank during gage installation next to the streamgage located on the bank on the left.

Looking across the stream (southwest) at USGS streamgage 08223400 Rio Grande at Alamosa NWR near Alamosa, CO; non-contact radar suspended above the stream with the streamgage located on the bank on the left just out of view.

A wide view of the lava lake within Halema‘uma‘u crater at Kīlauea summit, taken on March 24, 2021 at 12:48 p.m. HST. A gas plume rises from the west vent (center-left), which continues to erupt lava into the active western portion of the lava lake (light gray in color). The center and eastern lava lake surface is covered by a darker, stagnant crust.

Looking upstream (east) at USGS streamgage 08227510 North Crestone Creek at Baca NWR near Crestone, CO; USGS hydrologist is servicing the streamgage.

Looking upstream (east) at USGS streamgage 08227510 North Crestone Creek at Baca NWR near Crestone, CO; non-contact radar suspended above the creek with USGS hydrologist servicing the streamgage on the bank on the left.

Jin-Si Over conducting an elevation survey at Head of the Meadow Beach, Cape Cod National Seashore in Massachusetts.

The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active. Active surface lava is limited to the western (bottom) portion of the lake between the main island and the western fissure complex. In this view looking east, a 4 meter (13 feet) diameter skylight is visible at the top of the northeastern-most spatter cone (left). USGS photo by N.

USGS scientist sampling phytoplankton with a net in San Francisco Bay.

Blackfoot & Jackson Glaciers:  8/1/1914 EC Stebinger, USGS Photographic Library – 9/3/2009 L McKeon, USGS

Since the historic photo was taken, Blackfoot Glacier has retreated and fragmented into two separate glaciers, Blackfoot (foreground) and Jackson (distant) Glaciers. 

Boulder Glacier: circa 1910 M Elrod, Glacier National Park Archives -  8/24/2007 D Fagre & G Pederson, USGS  

Grinnell, Gem & Salamander Glaciers: 8/9/1910 M Elrod, U of M Library – 9/27/2016 L McKeon, USGS 

The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active. Active surface lava is limited to the western portion of the lake, and is impounded by steep, well-defined levees. USGS photo by M. Patrick on March 22, 2021.

A close up of the inlet where lava from the western fissure feeds into the lake in Halema‘uma‘u, at the summit of Kīlauea. The inlet is formed from two adjacent lava streams. USGS photo by M. Patrick.