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News from the USGS Pacific Coastal and Marine Science Center

Deep-Sea Studies

A map showing the ocean floor with shades of color to indicate changing depth, nd other demarkations to show various features

In 2022, the USGS and partners embarked on a research expedition to Escanaba Trough off the coast of northern California. The multidisciplinary crew collected samples with a remotely operated vehicle and tested new seafloor mapping techniques using an autonomous underwater vehicle.

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Sound Waves Newsletter

An animated GIF of a coral reef in American Samoa, showing colorful reef fish darting in and out of the coral

Read issues of the Sound Waves Newsletter, featuring “Coastal and Marine Research News from Across the USGS”

Sound Waves Newsletter
Filter Total Items: 725
Photo Roundup: February-May 2026

Photo Roundup: February-May 2026

A selection of coastal and ocean videos and photographs from across the USGS.

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PCMSC’s Andy O’Neill Receives CSBPA’s Joe Johnson Outstanding Service Award

PCMSC’s Andy O’Neill Receives CSBPA’s Joe Johnson Outstanding Service Award

This annual award honors coastal scientists, planners, engineers, and innovators who advance the knowledge and understanding of coastal science and...

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Repeated Marine Heatwaves Have Dramatically Reshaped Coral Reefs in Hawaiʻi National Parks

Repeated Marine Heatwaves Have Dramatically Reshaped Coral Reefs in Hawaiʻi National Parks

Coral reefs along Hawaiʻi’s Kona Coast have undergone major declines over the past two decades, according to a new report from USGS and the National...

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Tracking sediment erosion and transport in a reef-adjacent watershed

Tracking sediment erosion and transport in a reef-adjacent watershed

A new study from USGS uses strontium isotopes and mixing models to determine the provenance of terrestrial sediment clouding an ecologically important...

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USGS Releases Global 3D Archive of Coral Reef Cores to Support Climate and Coastal Research

USGS Releases Global 3D Archive of Coral Reef Cores to Support Climate and Coastal Research

A new digital archive released by the USGS Pacific and St. Petersburg Coastal and Marine Science Centers gives scientists an unprecedented look inside...

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Linking climate variability to shoreline change in the Pacific Northwest

Linking climate variability to shoreline change in the Pacific Northwest

Sandy beaches worldwide are constantly shifting, sometimes subtly, sometimes dramatically. Now, new research focused on the U.S. Pacific Northwest...

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Ozette Lake: A natural seismograph along the northern Cascadia Subduction Zone (Video)

Ozette Lake: A natural seismograph along the northern Cascadia Subduction Zone (Video)

Ozette Lake, on Washington State’s Olympic Peninsula, is the largest unaltered lake in the state. Glacially carved to depths of about 100 meters (328...

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USGS Geophysicist among Federal Technical Experts at Seafloor Mapping Presentations in the Philippines

USGS Geophysicist among Federal Technical Experts at Seafloor Mapping Presentations in the Philippines

In September 2025, USGS Research Geophysicist Guy Cochrane served as a technical expert on seafloor mapping and marine benthic ecosystems during two...

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Photo Roundup: December 2025-January 2026

Photo Roundup: December 2025-January 2026

A selection of coastal and ocean videos and photographs from across the USGS.

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Satellite Imagery Shows Beach Widening in Southern California Driven by Human Activity

Satellite Imagery Shows Beach Widening in Southern California Driven by Human Activity

While many of California’s beaches have narrowed over time due to coastal erosion, new research from USGS and the University of California, Irvine...

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