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Science

The USGS Coastal and Marine Hazards and Resources Program conducts a wide variety of research in coastal and marine environments to support scientific understanding, develop tools and technology, and provide maps, data, and other information needed by resource managers and decision-makers.

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Hazards

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Coastal Change

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Ocean Resources

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Coastal Ecosystems

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Ocean Ecosystems

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Capabilities

FAQs

What is a landslide and what causes one?

A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity. The term "landslide" encompasses five modes of slope movement: falls, topples, slides, spreads, and flows. These are further subdivided by the type of geologic material...

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What is a landslide and what causes one?

A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity. The term "landslide" encompasses five modes of slope movement: falls, topples, slides, spreads, and flows. These are further subdivided by the type of geologic material...

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Can major landslides and debris flows happen in all areas of the U.S.?

Landslides can and do occur in every state and territory of the U.S.; however, the type, severity, and frequency of landslide activity varies from place to place, depending on the terrain, geology, and climate.Major storms have caused major or widespread landslides in Washington state, Oregon, California, Colorado, Idaho, Hawaii, Virginia, Ohio, Pennsylvania, Tennessee, North Carolina, Puerto Rico...

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Can major landslides and debris flows happen in all areas of the U.S.?

Landslides can and do occur in every state and territory of the U.S.; however, the type, severity, and frequency of landslide activity varies from place to place, depending on the terrain, geology, and climate.Major storms have caused major or widespread landslides in Washington state, Oregon, California, Colorado, Idaho, Hawaii, Virginia, Ohio, Pennsylvania, Tennessee, North Carolina, Puerto Rico...

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How do landslides cause tsunamis?

Tsunamis are large, potentially deadly and destructive sea waves, most of which are formed as a result of submarine earthquakes. They can also result from the eruption or collapse of island or coastal volcanoes and from giant landslides on marine margins. These landslides, in turn, are often triggered by earthquakes. Tsunamis can be generated on impact as a rapidly moving landslide mass enters the...

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How do landslides cause tsunamis?

Tsunamis are large, potentially deadly and destructive sea waves, most of which are formed as a result of submarine earthquakes. They can also result from the eruption or collapse of island or coastal volcanoes and from giant landslides on marine margins. These landslides, in turn, are often triggered by earthquakes. Tsunamis can be generated on impact as a rapidly moving landslide mass enters the...

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Education

Featured Photos and Videos

Keep watching this page for more photos from our scientists!

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Featured Photos and Videos

Keep watching this page for more photos from our scientists!

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Science Posters

The USGS Pacific Coastal and Marine Science Center created posters about each of these completed research projects. Here, the posters are presented along with additional information.

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Science Posters

The USGS Pacific Coastal and Marine Science Center created posters about each of these completed research projects. Here, the posters are presented along with additional information.

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Life of a Tsunami

Life of a Tsunami

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Life of a Tsunami

Life of a Tsunami

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