Volcano Hazards Program Office
Multimedia
Scanning electron microscope image of Yellowstone drill core
The right side of the figure is an image of a small piece of the Y-9 core from the USGS 1967-68 drilling expedition to Yellowstone National Park. The black area was analyzed using a scanning electron microscope (SEM) at the University of Wyoming to determine mineralogy and dispersion of elements. The black and white photo is an SEM image of the alteration mineral
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Research drilling in Yellowstone National Park
Research drilling in Yellowstone National Park. (A) is an image from Fenner (1936) of the drilling setup in the Upper Geyser Basin during the 1929 field season. (B) is an image from White et al. (1975) of the USGS drill rig set up in the Norris Geyser Basin in 1967-68 during a steam eruption.
Ash cloud simulation for an eruption size of 5/18/1980 Mount St Helens
If Mount St. Helens (Washington) were to have an eruption today the same size as that of May 18, 1980, this model simulation shows the ash cloud reach.
Ash cloud simulation for moderate sized eruption of Mount St. Helens
If Mount St. Helens were to have a moderate sized eruption today (similar to Mount Spurr, Alaska, August 18, 1992), this model shows the ash cloud extent.
Ash cloud simulation for a small eruption of Mount St. Helens
If Mount St. Helens were to have a small eruption today (similar in size to its July 22, 1980 eruption), this simulation shows the ash cloud extent.
Seismicity rates for Yellowstone Lake earthquake swarms
Rate of earthquake occurrence for the 2008-2009 Yellowstone Lake swarm (green) and 2020 swarm (red).
Map of Yellowstone Lake seismic swarms in 2008-2009 and 2020
Map of earthquakes that occurred beneath Yellowstone Lake as parts of seismic swarms in 2008-2009 (green) and 2020 (red). Orange line is the boundary of Yellowstone Caldera, which formed 631,000 years ago.
KWcam webcam image from December 2 at 6:00 p.m. HST
KWcam webcam image from December 2 at 6:00 p.m. HST, immediately following a M3.1 earthquake at Kīlauea summit. Several rockfalls down the talus slope impacted the summit water lake, causing some brief localized color changes of the lake surface (circled in yellow).
KWcam webcam animated GIF December 2, 2020
ANIMATED GIF: At Kīlauea summit, the KWcam webcam recorded several small color changes along the lake margin following rockfalls which impacted the lake surface. These rockfalls immediately followed a M3.1 earthquake Wednesday evening, December 2, at 5:59 p.m. HST. This animated image file (GIF) continuously loops two consecutive webcam images from 5:50 p.m. and 6:00 p.m.
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Yellowstone Volcano Observatory Monthly Update for November 2020
Mike Poland, Scientist-in-Charge of the Yellowstone Volcano Observatory, gives an overview of activity at Yellowstone during November 2020.
moon setting over Mauna Loa's broad Northeast Rift Zone
This photo was taken from the west rim of Kīlauea caldera at dawn, and shows the moon setting over Mauna Loa's broad Northeast Rift Zone. USGS photo by M. Patrick.
Timelapse showing surface motion of Kīlauea's summit water lake
This timelapse sequence shows 3.5 hours of activity at the water lake in Halema‘uma‘u crater, at the summit of Kīlauea Volcano. Several influx zones supply groundwater into the lake from the margins, creating shifting color zones on the lake surface. No significant changes have been observed in recent lake activity. USGS video by M. Patrick.