Images

This photo, looking south, shows lava spilling from the small, perched lava lake on the northeast side of Pu‘u ‘Ō‘ō's crater floor. The rim on the east side of the crater, in the background, has been nearly completely buried and is no longer discernable.

Activity at the ocean entry near Kupapa‘u Point has increased slightly over the past several days, with small entry points now spread along the coastline on both sides of the National Park boundary. Whale watching season has also arrived—the splash of whitewater near the bottom center part of the photo is from a breaching whale investigating the ocean entry.

Tephra falling from a lava fountain on September 6, 1983, helped build the Pu‘u ‘Ō‘ō cone, which eventually reached a maximum height of 255 m (835 ft) in 1986.

The lava lake in the Overlook vent reached to within 40 m (130 ft) of the Halema‘uma‘u crater floor before sunrise this morning, before beginning to drop again. The lake level, however, remains high, as can be seen in this photo, looking west. Note the dramatic overhang on the north-northwest side of the vent (to the right).

Zoomed-in view of the lava lake on the northeast side of the Pu‘u ‘Ō‘ō crater floor.

View of the front of the slowly advancing ‘A‘ā flow at the base of the pali.

The lava lake in the Overlook vent reached to within 40 m (130 ft) of the Halema‘uma‘u crater floor before sunrise this morning, before beginning to drop again. The lake level, however, remains high, as can be seen in this photo, looking west. Note the dramatic overhang on the north-northwest side of the vent (to the right).

The small lava lake on the northeast side of the Pu‘u ‘Ō‘ō crater floor produced several short flows since last night (January 9). This morning, two separate flows spilled from the Pu‘u ‘Ō‘ō crater and onto the northeast flank of the Pu‘u ‘Ō‘ō cone. The flows are visible at the lower left side of the photo.

Zoomed-in view of the lava lake on the northeast side of the Pu‘u ‘Ō‘ō crater floor.

A breakout from the active lava tube near the base of the pali in Royal Gardens yesterday fed lava onto the coastal plain. This morning, the breakout fed a small ‘A‘ā flow, seen in this photo. Several streams of lava from the breakout point are visible in the background.

This is a thermal image, looking southwest, showing the active lava flows on the coastal plain. The ocean entry points are to the left, and the breakout near the base of the pali in Royal Gardens is to the right. The active flows near the ocean straddle the National Park boundary (i.e. both inside and outside the Park).

A stream of lava cascades down the sea cliff at the ocean entry, near the eastern boundary of the National Park. This spot was one of several where lava was reaching the water.

Numerous small streams of lava were entering the water as they were battered by the surf.

Looking west at some of the eastern ocean entry points.

A portion of the lava stream breaks apart on the near-vertical sea cliff.

USGS Graduate Research Assistant Legna Torres-Garcia installs a temperature logger on a coral reef in Dry Tortugas National Park. She and her team deployed a vertical array with temperature loggers every 1m from the seabed to near-surface with the goal to capture any changes in temperature through time and across depth.

Channel system at Coldwater Lake outlet revealed after alder trees drop leaves, South Coldwater Creek, Mount St. Helens, southeast view to Johnston Ridge.

Trunk River is an example of a tidally restricted impounded wetland (Cape Cod, MA).

At around 7:30 a.m. HST, Rock-fall scar near the right edge at Halema‘uma‘u. Half an hour later, the black streak was no longer visible.

A tumulus at Captain Jack's stronghold within Lava Beds National Monument .

Volcanic Hazard Assessment for the Lassen Region, California is based upon a comprehensive investigation of the eruptive history and possible future eruption scenarios with associated volcanic hazards.