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News from the USGS Pacific Coastal and Marine Science Center

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A mid-ocean ridge revealed by 3D magnetic modeling: New geologic map of Escanaba Trough

A mid-ocean ridge revealed by 3D magnetic modeling: New geologic map of Escanaba Trough

Nearly two hundred miles offshore of the Oregon/California border lies Escanaba Trough, a unique mid-ocean ridge covered in deep sediment up to 500...

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Waves, not just runoff, drive sediment buildup on American Samoa coral reefs

Waves, not just runoff, drive sediment buildup on American Samoa coral reefs

Sediment washing into coral reefs from land has long been viewed as one of the biggest threats to reef health. But new research from USGS and...

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Great Salt Lake sediments record thousands of years of earthquake history

Great Salt Lake sediments record thousands of years of earthquake history

As the largest lake west of the Mississippi River with an average depth of around five meters (~16 feet), the Great Salt Lake offers an opportunity to...

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New high-resolution geophysics in the Outer California Borderland

New high-resolution geophysics in the Outer California Borderland

A new study focused on the Cortes Basin, located within the Outer California Borderland offshore of southern California, presents detailed evidence of...

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USGS Remote Sensing Data Tracks Coastal Change from Hurricanes Helene and Milton

USGS Remote Sensing Data Tracks Coastal Change from Hurricanes Helene and Milton

In response to Hurricanes Helene and Milton, the USGS collected and released aerial imagery covering over 250 kilometers (155 miles) of the west coast...

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USGS Scientist Contributes to World Ocean Assessment

USGS Scientist Contributes to World Ocean Assessment

USGS Research Geologist Curt Storlazzi is among more than 650 international scientists contributing to the United Nations' third World Ocean...

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USGS Releases Expedition Report for Samoa Basin Box Coring Effort

USGS Releases Expedition Report for Samoa Basin Box Coring Effort

On leg three of the American Samoa Mapping Project, an interagency-supported hydrograph survey project led by NOAA and in partnership with BOEM, USGS...

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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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