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Images related to natural hazards.

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A wider view of the lava lake in the Overlook crater, taken from th...
lava lake in the Overlook crater, taken from the rim of Halema‘uma‘...
lava lake in the Overlook crater, taken from the rim of Halema‘uma‘...
lava lake in the Overlook crater, taken from the rim of Halema‘uma‘...

A wider view of the lava lake in the Overlook crater, taken from the rim of Halema‘uma‘u Crater (closed to the public due to volcanic hazards).

Continued spattering in the summit lava lake...
Continued spattering in the summit lava lake
Continued spattering in the summit lava lake
Continued spattering in the summit lava lake

Spattering is common in the summit lava lake in Halema‘uma‘u Crater. This afternoon, spattering was active at a site along the east lake margin. Spatter deposits have built a small ledge extending out from the crater walls (lower right of photo), onto which fluid spatter often falls.

Spattering is common in the summit lava lake in Halema‘uma‘u Crater. This afternoon, spattering was active at a site along the east lake margin. Spatter deposits have built a small ledge extending out from the crater walls (lower right of photo), onto which fluid spatter often falls.

A view of the outgassing plume produced by the summit lava lake. T...
outgassing plume produced by the summit lava lake. The photo was t...
outgassing plume produced by the summit lava lake. The photo was t...
outgassing plume produced by the summit lava lake. The photo was t...

A view of the outgassing plume produced by the summit lava lake. The photo was taken from Uēkahuna Bluff, near HVO and the National Park Service Jaggar Museum.

Screen Shot aerial imagery of Lake Ontario shoreline at Braddock Bay, New York
Aerial photograph of Lake Ontario shoreline at Braddock Bay, New York
Aerial photograph of Lake Ontario shoreline at Braddock Bay, New York
Map of flow field...
Map of flow field
Map of flow field
Map of flow field

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of June 21 is shown in pink, while widening and advancement of the active flow as of July 10 is shown in red. Older Pu‘u ‘Ō‘ō lava flows (1983-2016) are shown in gray. The yellow line is the trace of the active lava tube.

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of June 21 is shown in pink, while widening and advancement of the active flow as of July 10 is shown in red. Older Pu‘u ‘Ō‘ō lava flows (1983-2016) are shown in gray. The yellow line is the trace of the active lava tube.

This image shows a comparison of a normal photograph (left) with a ...
This image shows a comparison of a normal photograph with a thermal...
This image shows a comparison of a normal photograph with a thermal...
This image shows a comparison of a normal photograph with a thermal...

This image shows a comparison of a normal photograph (left) with a thermal image (right) of the lava delta. The cracks spanning the delta, and the warm water plumes extending out from the entry point, are evident in the thermal image.

This image shows a comparison of a normal photograph (left) with a thermal image (right) of the lava delta. The cracks spanning the delta, and the warm water plumes extending out from the entry point, are evident in the thermal image.

June 26 breakout continues to advance across the coastal plain...
June 26 breakout continues to advance across the coastal plain
June 26 breakout continues to advance across the coastal plain
June 26 breakout continues to advance across the coastal plain

The June 26 breakout remains active at the flow front, which can be distinguished by the light silver color at the bottom-center of the photo.

A zoomed in view of the Kamokuna lava delta reveals several crack s...
Kamokuna lava delta reveals several crack systems parallel to sea c...
Kamokuna lava delta reveals several crack systems parallel to sea c...
Kamokuna lava delta reveals several crack systems parallel to sea c...

A zoomed in view of the Kamokuna lava delta reveals several crack systems parallel to the sea cliff which suggests instability of the delta. Over the past few weeks, flows on the delta have built up the surface near the base of the cliff creating a slope seaward.

A zoomed in view of the Kamokuna lava delta reveals several crack systems parallel to the sea cliff which suggests instability of the delta. Over the past few weeks, flows on the delta have built up the surface near the base of the cliff creating a slope seaward.

Aerial photograph looking from an airplane down on the Big Sur Landslide in California.
Big Sur Landslide, July 7, 2017
Big Sur Landslide, July 7, 2017
Big Sur Landslide, July 7, 2017

USGS scientists continue to monitor the slide by collecting imagery every couple of weeks, weather permitting. Pilot Bob Van Wagenen, contracted through the Department of the Interior’s Office of Aviation Services, takes air photos for Jon Warrick’s Big Sur Landslide team, flying out of the Watsonville Municipal Airport in a Cessna 182R.

USGS scientists continue to monitor the slide by collecting imagery every couple of weeks, weather permitting. Pilot Bob Van Wagenen, contracted through the Department of the Interior’s Office of Aviation Services, takes air photos for Jon Warrick’s Big Sur Landslide team, flying out of the Watsonville Municipal Airport in a Cessna 182R.

Volcano Watch archive is a treasure trove of volcano information...
Volcano Watch archive is a treasure trove of volcano information
Volcano Watch archive is a treasure trove of volcano information
Volcano Watch archive is a treasure trove of volcano information

During the March 2011 Kamoamoa fissure eruption on Kīlauea Volcano's East Rift Zone, spatter from this line of lava fountains just west of Pu‘u ‘Ō‘ō reached heights of 40 m (130 ft).

During the March 2011 Kamoamoa fissure eruption on Kīlauea Volcano's East Rift Zone, spatter from this line of lava fountains just west of Pu‘u ‘Ō‘ō reached heights of 40 m (130 ft).

Recent breakout is advancing on the coastal plain...
Recent breakout is advancing on the coastal plain
Recent breakout is advancing on the coastal plain
Recent breakout is advancing on the coastal plain

A breakout that started June 26 on the upper pali is now advancing across the coastal plain. The flow front has advanced approximately 500 m (0.3 miles) from the base of the pali, and was about 2.7 km (1.7 miles) from the emergency road this morning.

A breakout that started June 26 on the upper pali is now advancing across the coastal plain. The flow front has advanced approximately 500 m (0.3 miles) from the base of the pali, and was about 2.7 km (1.7 miles) from the emergency road this morning.

A closer look at the pāhoehoe flow on the coastal plain with pali i...
pāhoehoe flow on the coastal plain with pali in background. As the ...
pāhoehoe flow on the coastal plain with pali in background. As the ...
pāhoehoe flow on the coastal plain with pali in background. As the ...

A closer look at the pāhoehoe flow on the coastal plain with pali in background. As the flow spread across the ground, its surface cooled and developed a hardened crust.

People wearing safety gear standing on a ship and setting up gear.
Streamer depth control device, or bird
Streamer depth control device, or bird
Streamer depth control device, or bird

The Geospace Navigator bird is a streamer depth control device, used with a high-resolution seismic system to regulate and record the depth of the streamer.

The Geospace Navigator bird is a streamer depth control device, used with a high-resolution seismic system to regulate and record the depth of the streamer.

People wearing safety gear standing on a ship and setting up gear.
Streamer depth control device, or bird
Streamer depth control device, or bird
Streamer depth control device, or bird

The Geospace Navigator bird is a streamer depth control device, used with a high-resolution seismic system to regulate and record the depth of the streamer.

The Geospace Navigator bird is a streamer depth control device, used with a high-resolution seismic system to regulate and record the depth of the streamer.

People wearing safety gear standing on a ship and setting up gear.
Streamer depth control device, or bird
Streamer depth control device, or bird
Streamer depth control device, or bird

The Geospace Navigator bird is a streamer depth control device, used with a high-resolution seismic system to regulate and record the depth of the streamer.

The Geospace Navigator bird is a streamer depth control device, used with a high-resolution seismic system to regulate and record the depth of the streamer.

Cross-section illustration showing structure beneath the seafloor where sediment layers are deformed by high seismic activity.
Multichannel seismic-reflection profile, QCF fault
Multichannel seismic-reflection profile, QCF fault
Multichannel seismic-reflection profile, QCF fault

Multichannel seismic-reflection profile showing deformed sediment layers on the Pacific plate, just seaward of the Queen Charlotte-Fairweather fault near the south end of the study area. Location of profile shown by southern-most yellow line on trackline map, near Noyes Cyn. (Canyon).

Multichannel seismic-reflection profile showing deformed sediment layers on the Pacific plate, just seaward of the Queen Charlotte-Fairweather fault near the south end of the study area. Location of profile shown by southern-most yellow line on trackline map, near Noyes Cyn. (Canyon).

Kamokuna lava delta remains active...
Kamokuna lava delta remains active
Kamokuna lava delta remains active
Kamokuna lava delta remains active

An aerial view of the Kamokuna lava delta reveals the recent surface breakouts (dark flows) that began on Sunday, June 25, with the short-lived firehose activity. These flows contrast nicely with the older, altered delta surface, which is much lighter in color.

An aerial view of the Kamokuna lava delta reveals the recent surface breakouts (dark flows) that began on Sunday, June 25, with the short-lived firehose activity. These flows contrast nicely with the older, altered delta surface, which is much lighter in color.

A telephoto view of the crusted over firehose flow where it exits t...
A telephoto view of the crusted over firehose flow where it exits t...
A telephoto view of the crusted over firehose flow where it exits t...
A telephoto view of the crusted over firehose flow where it exits t...

A telephoto view of the crusted over firehose flow where it exits the sea cliff. Small cracks in the crust expose incandescence from molten lava within the tube that feeds the delta.

This video clip shows Kīlauea Volcano's Kamokuna ocean entry, with ...
Kīlauea's Kamokuna ocean entry, with the steam plume rising from th...
Kīlauea's Kamokuna ocean entry, with the steam plume rising from th...
Kīlauea's Kamokuna ocean entry, with the steam plume rising from th...

This video clip shows Kīlauea Volcano's Kamokuna ocean entry, with the steam plume rising from the front of the lava delta. Recent flows have covered the surface of the delta with fresh lava.

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