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A closer view of lava cascading from the lava tube at the Kamokuna ...
A closer view of lava cascading from the lava tube at the Kamokuna ...
A closer view of lava cascading from the lava tube at the Kamokuna ...
A closer view of lava cascading from the lava tube at the Kamokuna ...

A closer view of lava cascading from the lava tube at the Kamokuna ocean entry, with spatter (fragments of molten lava) and black sand (volcanic glass) being thrown skyward.

Updated Kamokuna ocean entry map...
Updated Kamokuna ocean entry map
Updated Kamokuna ocean entry map
Updated Kamokuna ocean entry map

This map updates the preliminary ocean entry map below, based on mapping conducted on January 3, 2017. The map of the coastline at the lava flow ocean entry at Kamokuna shows the areas of the lava delta and adjacent coastline that collapsed into the ocean on December 31, 2016.

This map updates the preliminary ocean entry map below, based on mapping conducted on January 3, 2017. The map of the coastline at the lava flow ocean entry at Kamokuna shows the areas of the lava delta and adjacent coastline that collapsed into the ocean on December 31, 2016.

Kamokuna ocean entry map...
Kamokuna ocean entry map
Kamokuna ocean entry map
Kamokuna ocean entry map

This map shows the coastline at the Kamokuna lava entry on Kīlauea Volcano, with labels denoting areas impacted by the large, progressive lava-delta collapse on December 31, 2016. Nearly all the Kamokuna lava delta collapsed into the sea, along with a large section of the older sea cliff east of the delta.

This map shows the coastline at the Kamokuna lava entry on Kīlauea Volcano, with labels denoting areas impacted by the large, progressive lava-delta collapse on December 31, 2016. Nearly all the Kamokuna lava delta collapsed into the sea, along with a large section of the older sea cliff east of the delta.

Kamokuna lava delta collapse also takes part of old sea cliff...
Kamokuna lava delta collapse also takes part of old sea cliff
Kamokuna lava delta collapse also takes part of old sea cliff
Kamokuna lava delta collapse also takes part of old sea cliff

The rocky shelf at the base of the sea cliff is all that remains of the Kamokuna lava delta following the New Year's Eve collapse (Dec. 31, 2016), which sent acres of rock plunging into the sea.

The rocky shelf at the base of the sea cliff is all that remains of the Kamokuna lava delta following the New Year's Eve collapse (Dec. 31, 2016), which sent acres of rock plunging into the sea.

In addition to most of the Kamokuna lava delta disappearing into th...
In addition to most of the Kamokuna lava delta disappearing into oc...
In addition to most of the Kamokuna lava delta disappearing into oc...
In addition to most of the Kamokuna lava delta disappearing into oc...

In addition to most of the Kamokuna lava delta disappearing into the ocean on New Year's Eve day, a large section of the older sea cliff east of the delta also collapsed. Here you can see the "bite" taken out by the collapse of the sea cliff.

In addition to most of the Kamokuna lava delta disappearing into the ocean on New Year's Eve day, a large section of the older sea cliff east of the delta also collapsed. Here you can see the "bite" taken out by the collapse of the sea cliff.

image related to volcanoes. See description
Many forms of sulfur are found on Kīlauea Volcano
Many forms of sulfur are found on Kīlauea Volcano
Many forms of sulfur are found on Kīlauea Volcano

Continued degassing from fumaroles at fissures on Kīlauea Volcano's lower East Rift Zone produce native sulfur crystals when sulfur dioxide and hydrogen sulfide gases react and cool upon reaching the surface. The delicate sulfur crystals are 5–15 mm (0.2–0.6 in) long. USGS photos by A. Lerner, 2018.

Continued degassing from fumaroles at fissures on Kīlauea Volcano's lower East Rift Zone produce native sulfur crystals when sulfur dioxide and hydrogen sulfide gases react and cool upon reaching the surface. The delicate sulfur crystals are 5–15 mm (0.2–0.6 in) long. USGS photos by A. Lerner, 2018.

image related to volcanoes. See description
White laze plumes mark locations where lava enters the ocean over a broad area.
White laze plumes mark locations where lava enters the ocean over a broad area.
White laze plumes mark locations where lava enters the ocean over a broad area.

White laze plumes mark locations where lava enters the ocean over a broad area. An open lava channel flows into the ocean at the southern-most plume (middle) near the southern flow margin. The boat ramp at Pohoiki is about 940 m (0.58 mi) farther south of the flow margin. View is toward the west-southwest.

White laze plumes mark locations where lava enters the ocean over a broad area. An open lava channel flows into the ocean at the southern-most plume (middle) near the southern flow margin. The boat ramp at Pohoiki is about 940 m (0.58 mi) farther south of the flow margin. View is toward the west-southwest.

Image of USGS scientist on a beach recording piping plover habitat characteristics
USGS scientist records piping plover habitat characteristics
USGS scientist records piping plover habitat characteristics
USGS scientist records piping plover habitat characteristics

USGS scientist Sara Zeigler records habitat characteristics in iPlover at an ‘exclosed’ nest. On some beaches, managers erect netting around nests to protect eggs/chicks and adults from predators, allowing movement of chicks and parents to and from the nest but excluding predators

USGS scientist Sara Zeigler records habitat characteristics in iPlover at an ‘exclosed’ nest. On some beaches, managers erect netting around nests to protect eggs/chicks and adults from predators, allowing movement of chicks and parents to and from the nest but excluding predators

location map of sample locations from the north and south shores of long island, new york
Location map of the North and South Shores of Long Island, NY
Location map of the North and South Shores of Long Island, NY
Location map of the North and South Shores of Long Island, NY

Groundwater data were collected in the spring and fall of 2008 from three sites representing different geological settings and biogeochemical conditions within the surficial glacial aquifer of Long Island, NY.

Woods Hole drone pilot
Unmanned Aerial System (UAS) pilot
Unmanned Aerial System (UAS) pilot
Unmanned Aerial System (UAS) pilot

Sandy Brosnahan performing first solo flight as a USGS certified drone pilot.  There are multiple exciting applications for drone imagery including erosion studies and physical changes to coastal ecosystems over time. 

Sandy Brosnahan performing first solo flight as a USGS certified drone pilot.  There are multiple exciting applications for drone imagery including erosion studies and physical changes to coastal ecosystems over time. 

Map of the seafloor showing its characteristics which include long, linear features that are earthquake fault zones.
Offshore of Point Estero
Offshore of Point Estero
Offshore of Point Estero

Seafloor offshore of Point Estero (PE) showing east (EH) and west (WH) strands of the Hosgri fault zone. Arrow points to a seafloor slope (a 12,000 year old shoreline) that has been offset by the east Hosgri strand, indicating a slip rate of about 2.6 millimeters per year.

Seafloor offshore of Point Estero (PE) showing east (EH) and west (WH) strands of the Hosgri fault zone. Arrow points to a seafloor slope (a 12,000 year old shoreline) that has been offset by the east Hosgri strand, indicating a slip rate of about 2.6 millimeters per year.

Map of offshore southern California showing the contours of the seafloor, with labels pointing to circles showing landslides.
Large submarine slides off southern California
Large submarine slides off southern California
Large submarine slides off southern California

Large submarine slides off southern California (outlined in small white dots). Low-resolution bathymetry shown in light grey (approximately 100 meters/pixel). High-resolution bathymetry shown in darker grey (less than 20 meters/pixel).

Large submarine slides off southern California (outlined in small white dots). Low-resolution bathymetry shown in light grey (approximately 100 meters/pixel). High-resolution bathymetry shown in darker grey (less than 20 meters/pixel).

4-photos of scientists doing field work on boats, and in or near the water
Scientists doing field work at Elwha River
Scientists doing field work at Elwha River
Scientists doing field work at Elwha River

Researchers survey Elwha River elevation and depths. Clockwise from upper left: setting up a traditional survey instrument above the river; measuring river depths from a kayak with sonar and GPS; walking the beach with GPS backpacks; and determining offshore depths using a personal watercraft with GPS and sonar.

Researchers survey Elwha River elevation and depths. Clockwise from upper left: setting up a traditional survey instrument above the river; measuring river depths from a kayak with sonar and GPS; walking the beach with GPS backpacks; and determining offshore depths using a personal watercraft with GPS and sonar.

Schematic showing how sediment on the seafloor moves in response to multiple forces
Schematic showing how sediment on the seafloor moves
Schematic showing how sediment on the seafloor moves
photo of dead trees along a coastline with water and background mountains
Drowned Forest in Girdwood, AK from 1964 Alaska Earthquake and Tsunami
Drowned Forest in Girdwood, AK from 1964 Alaska Earthquake and Tsunami
Drowned Forest in Girdwood, AK from 1964 Alaska Earthquake and Tsunami

Shaking during the 1964 Alaska earthquake was felt as far away as Seattle, Washington, and its tsunamis caused 129 fatalities and about \$2.3 billion in property losses (2013 dollars).

View looks out from a boat with instruments mounted on the side, over the water and in the far distance are snow-capped peaks.
Seafloor mapping in southeastern Alaska
Seafloor mapping in southeastern Alaska
Seafloor mapping in southeastern Alaska

Mount Crillon in the backdrop during a multibeam bathymetry survey of the Queen Charlotte-Fairweather Fault, offshore southeastern Alaska.

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