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Volcano Hazard Program images.
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).
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).
View of the front of the slowly advancing ‘A‘ā flow at the base of the pali.
View of the front of the slowly advancing ‘A‘ā flow at the base of the pali.
Looking west at some of the eastern ocean entry points.
Looking west at some of the eastern ocean entry points.
Numerous small streams of lava were entering the water as they were battered by the surf.
Numerous small streams of lava were entering the water as they were battered by the surf.
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.
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.
A portion of the lava stream breaks apart on the near-vertical sea cliff.
A portion of the lava stream breaks apart on the near-vertical sea cliff.
Channel system at Coldwater Lake outlet revealed after alder trees drop leaves, South Coldwater Creek, Mount St. Helens, southeast view to Johnston Ridge.
Channel system at Coldwater Lake outlet revealed after alder trees drop leaves, South Coldwater Creek, Mount St. Helens, southeast view to Johnston Ridge.
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.
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.
The east face of Middle Sister is 350 m (1150 ft) high. Ice-sculpted pile of lavas at right, variously called "Black Hump," "Prouty Point," or "Step Sister," has 190 m of relief and consists of at least five flows.
The east face of Middle Sister is 350 m (1150 ft) high. Ice-sculpted pile of lavas at right, variously called "Black Hump," "Prouty Point," or "Step Sister," has 190 m of relief and consists of at least five flows.
Aerial view of a lava tube trace (dark sinuous shape) along the ground surface at Medicine Lake Volcano, California.
Aerial view of a lava tube trace (dark sinuous shape) along the ground surface at Medicine Lake Volcano, California.
Lassen Peak viewed from the south at the summit of Brokeoff Volcano, Lassen Volcanic National Park.
Lassen Peak viewed from the south at the summit of Brokeoff Volcano, Lassen Volcanic National Park.
Mount Hood in the not-so-far distance beyond downtown Portland, Oregon. Photograph taken at the top of the Portland Aerial Tram line on Marquam Hill.
Mount Hood in the not-so-far distance beyond downtown Portland, Oregon. Photograph taken at the top of the Portland Aerial Tram line on Marquam Hill.
A tumulus at Captain Jack's stronghold within Lava Beds National Monument .
A tumulus at Captain Jack's stronghold within Lava Beds National Monument .
Island of Hawai‘i map, showing Mauna Loa and the other four volcanoes that make up the island. Mauna Loa structural features include summit caldera, rift zones, radial vents, and historical lava flows.
Island of Hawai‘i map, showing Mauna Loa and the other four volcanoes that make up the island. Mauna Loa structural features include summit caldera, rift zones, radial vents, and historical lava flows.
Map of Yellowstone National Park showing Brimstone Basin and other areas known to release carbon dioxide from the ground.
Map of Yellowstone National Park showing Brimstone Basin and other areas known to release carbon dioxide from the ground.
Ice Springs cinder cone and lava flow erupted 720 years ago in the Black Rock Desert Volcanic Field, Utah.
Ice Springs cinder cone and lava flow erupted 720 years ago in the Black Rock Desert Volcanic Field, Utah.
Mount Hood dominates the skyline outside Portland, Oregon on a clear day. A major eruption of Mount Hood would pose a great hazard to the regional economy.
Mount Hood dominates the skyline outside Portland, Oregon on a clear day. A major eruption of Mount Hood would pose a great hazard to the regional economy.
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.
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.
Tephra-laden water filtering through the turbines has necessitated the replacement of four turbines in 21 years. The Agoyan Dam and its (orange) floodgates are designed to let highly turbid water bypass the turbines so as to avoid accelerated wear of generation components
Tephra-laden water filtering through the turbines has necessitated the replacement of four turbines in 21 years. The Agoyan Dam and its (orange) floodgates are designed to let highly turbid water bypass the turbines so as to avoid accelerated wear of generation components
Summary of power system impacts following 12 historic eruptions.
Summary of power system impacts following 12 historic eruptions.
Mount St. Helens and the industrial waterfront area of North Portland, Oregon along the Willamette River in the foreground. Excess sediment from volcanoes can significantly impact river traffic.
Mount St. Helens and the industrial waterfront area of North Portland, Oregon along the Willamette River in the foreground. Excess sediment from volcanoes can significantly impact river traffic.