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Volcano Hazard Program images.

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Earthen flow and Crater Glacier spill into upper Loowit Canyon, Mou...
Earthen flow and Crater Glacier spill into upper Loowit Canyon
Earthen flow and Crater Glacier spill into upper Loowit Canyon
Earthen flow and Crater Glacier spill into upper Loowit Canyon

View of upper Loowit Canyon shows where Crater Glacier is spilling into the canyon (dark gray) and where an earth flow deposit (medium gray lobe inside canyon) occurred in early summer. View to the south.

View of upper Loowit Canyon shows where Crater Glacier is spilling into the canyon (dark gray) and where an earth flow deposit (medium gray lobe inside canyon) occurred in early summer. View to the south.

Visitors stand on the observation deck at Johnston Ridge Observator...
Visitors stand on the observation deck at Johnston Ridge Observator...
Visitors stand on the observation deck at Johnston Ridge Observator...
Visitors stand on the observation deck at Johnston Ridge Observator...

Visitors stand on the observation deck at Johnston Ridge Observatory at Mount St. Helens National Volcanic Monument.

Educators hiking at Mount Rainier with CVO and NPS staff during a t...
Educators hiking at Mount Rainier with CVO and NPS staff during a t...
Educators hiking at Mount Rainier with CVO and NPS staff during a t...
Educators hiking at Mount Rainier with CVO and NPS staff during a t...

Educators hiking at Mount Rainier with CVO and NPS staff during a training at Mount Rainier, Washington.

image related to volcanoes. See description
The Hawaii County Fire Department
The Hawaii County Fire Department
The Hawaii County Fire Department

The Hawaii County Fire Department captured this image of Isaac Hale Park and boat ramp during their overflight of the area late this afternoon.

The Hawaii County Fire Department captured this image of Isaac Hale Park and boat ramp during their overflight of the area late this afternoon.

The CVO Sediment Laboratory works closely with scientist in providi...
The CVO Sediment Laboratory works closely with scientist in providi...
The CVO Sediment Laboratory works closely with scientist in providi...
The CVO Sediment Laboratory works closely with scientist in providi...

The CVO Sediment Laboratory works closely with scientist in providing authentic and reliable data to support their research.

Several birds take a closer view of the ocean entry. Narrow stream...
Several birds take ocean entry. Narrow streams of lava were batter...
Several birds take ocean entry. Narrow streams of lava were batter...
Several birds take ocean entry. Narrow streams of lava were batter...

Several birds take a closer view of the ocean entry. Narrow streams of lava were battered by the surf as they poured into the water.

Field Studies at Mount St. Helens...
Field Studies at Mount St. Helens
Field Studies at Mount St. Helens
Field Studies at Mount St. Helens

Center for the Study of Active Volcanoes (CSAV) students Javier Pacheco (Costa Rica) and Syegi Kunrat (Indonesia) participate in field studies at Mount St. Helens.

Center for the Study of Active Volcanoes (CSAV) students Javier Pacheco (Costa Rica) and Syegi Kunrat (Indonesia) participate in field studies at Mount St. Helens.

Ocean entry at Kupapa‘u Point is still active...
Ocean entry at Kupapa‘u Point is still active
Ocean entry at Kupapa‘u Point is still active
Ocean entry at Kupapa‘u Point is still active

The ocean entry at Kupapa‘u Point remains active, with several lava steams entering the water creating a moderate plume.

Practice is the key to protecting yourself during an earthquake...
Practice is the key to protecting yourself during an earthquake
Practice is the key to protecting yourself during an earthquake
Practice is the key to protecting yourself during an earthquake

Island residents are encouraged to practice "Drop! Cover! Hold on!" during the Great Hawaii ShakeOut drill at 10:17 a.m. on October 17, 2013. Taking these actions during an earthquake will greatly reduce your risk of injury or death. For more information, please visit http://shakeout.org/hawaii/.

Island residents are encouraged to practice "Drop! Cover! Hold on!" during the Great Hawaii ShakeOut drill at 10:17 a.m. on October 17, 2013. Taking these actions during an earthquake will greatly reduce your risk of injury or death. For more information, please visit http://shakeout.org/hawaii/.

Measuring turbidity in streams near Mount Baker, Washington....
Measuring turbidity in streams near Mount Baker, WA.
Measuring turbidity in streams near Mount Baker, WA.
Measuring turbidity in streams near Mount Baker, WA.

At Mount Baker, Washington, observers noted continuing landslide activity in the upper Middle Fork Nooksack drainage that resulted in small debris flows and muddy floods. Scientists from multiple agencies and institutions coordinated observations, surveying, and sampling to gain an understanding of the situation.

At Mount Baker, Washington, observers noted continuing landslide activity in the upper Middle Fork Nooksack drainage that resulted in small debris flows and muddy floods. Scientists from multiple agencies and institutions coordinated observations, surveying, and sampling to gain an understanding of the situation.

This thermal image shows the eastern ocean entry at Kupapa‘u Point....
eastern ocean entry at Kupapa‘u Point. Just inland from the entry ...
eastern ocean entry at Kupapa‘u Point. Just inland from the entry ...
eastern ocean entry at Kupapa‘u Point. Just inland from the entry ...

This thermal image shows the eastern ocean entry at Kupapa‘u Point. Just inland from the entry point a patch of slightly warmer temperatures indicates an area of recent small breakouts.

A wider view of a portion of the Kahauale‘a 2 flow margin at the fo...
Kahauale‘a 2 flow margin at the forest boundary
Kahauale‘a 2 flow margin at the forest boundary
Lava flow from Kīlauea Volcano (Hawaii) enters forest....
Lava flow from Kīlauea (Hawaii) enters forest.
Lava flow from Kīlauea (Hawaii) enters forest.
Lava flow from Kīlauea (Hawaii) enters forest.

On Kīlauea's East Rift Zone, the Kahauale'a 2 flow advances slowly into the Puna Forest Reserve. The Kahauale`a 2 flow began in early May, 2013, on the north side of the rift.

On Kīlauea's East Rift Zone, the Kahauale'a 2 flow advances slowly into the Puna Forest Reserve. The Kahauale`a 2 flow began in early May, 2013, on the north side of the rift.

The Kahauale‘a 2 flow, which is active north of Pu‘u ‘Ō‘ō, is fed f...
Kahauale‘a flow — Cone producing lava
Kahauale‘a flow — Cone producing lava
Kahauale‘a flow — Cone producing lava

The Kahauale‘a 2 flow, which is active north of Pu‘u ‘Ō‘ō, is fed from a vent at this cone on the northeast rim of Pu‘u ‘Ō‘ō crater. Small openings at the top of the cone contain sloshing lava, and two skylights at the very start of the Kahauale‘a 2 lava tube provided views of a swiftly moving lava stream rushing downslope.

The Kahauale‘a 2 flow, which is active north of Pu‘u ‘Ō‘ō, is fed from a vent at this cone on the northeast rim of Pu‘u ‘Ō‘ō crater. Small openings at the top of the cone contain sloshing lava, and two skylights at the very start of the Kahauale‘a 2 lava tube provided views of a swiftly moving lava stream rushing downslope.

Teachers learn about hummocks at Mount St. Helens workshop....
Teachers learn about hummocks at Mount St. Helens workshop.
Teachers learn about hummocks at Mount St. Helens workshop.
Teachers learn about hummocks at Mount St. Helens workshop.

Todd Cullings, with the Mount St. Helens National Volcanic Monument, leads teachers in activities they can do with students before hiking the Hummocks Trail.

If a picture is worth a thousand words, a geologic map is priceless...
If a picture is worth a thousand words, a geologic map is priceless
If a picture is worth a thousand words, a geologic map is priceless
If a picture is worth a thousand words, a geologic map is priceless

This geologic map of Mauna Loa shows surface flows that have been mapped as of 2013. The flows are color-coded to reflect age. Warm colors indicate younger flows, with red indicating flows erupted since 1832. Cooler colors indicate older flows, such as at South Point, which is covered by flows ranging from 7,000 to more than 21,000 years old (blues and purple).

This geologic map of Mauna Loa shows surface flows that have been mapped as of 2013. The flows are color-coded to reflect age. Warm colors indicate younger flows, with red indicating flows erupted since 1832. Cooler colors indicate older flows, such as at South Point, which is covered by flows ranging from 7,000 to more than 21,000 years old (blues and purple).

Flume experiments help to understand mechanics of flows....
Flume experiments help to understand mechanics of flows.
Flume experiments help to understand mechanics of flows.
Flume experiments help to understand mechanics of flows.

To better understand the physics of debris flows and to make more accurate hazards forecasts in the natural environment, scientists perform controlled experiments at the large-scale USGS debris flow flume facility.

To better understand the physics of debris flows and to make more accurate hazards forecasts in the natural environment, scientists perform controlled experiments at the large-scale USGS debris flow flume facility.

A close-up of the Kahauale‘a II flow burning vegetation at the fore...
Kahauale‘a II flow burning vegetation at the forest line, just nort...
Kahauale‘a II flow burning vegetation at the forest line, just nort...
Kahauale‘a II flow burning vegetation at the forest line, just nort...

A close-up of the Kahauale‘a II flow burning vegetation at the forest line, just north of Pu‘u ‘Ō‘ō. The flow consists of numerous slow-moving pāhoehoe lobes.

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