Dr. Starin Fernanda, Geological Survey & Mines Bureau of Sri Lanka, taking measurement of height of tsunami, indicated by gouge mark in tree from debris carried by the tsunami.
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Explore our planet through photography and imagery, including climate change and water all the way back to the 1800s when the USGS was surveying the country by horse and buggy.
Dr. Starin Fernanda, Geological Survey & Mines Bureau of Sri Lanka, taking measurement of height of tsunami, indicated by gouge mark in tree from debris carried by the tsunami.
Dr. Starin Fernanda, Geological Survey & Mines Bureau of Sri Lanka, taking measurement of height of tsunami, indicated by gouge mark in tree from debris carried by the tsunami.
Dr. Starin Fernanda, Geological Survey & Mines Bureau of Sri Lanka, taking measurement of height of tsunami, indicated by gouge mark in tree from debris carried by the tsunami.
Dr. Starin Fernanda, Geological Survey & Mines Bureau of Sri Lanka, preparing a trench for sampling of tsunami deposit. Leaves on the surface days or weeks after the tsunami and blanket the sand deposited by the tsunami.
Dr. Starin Fernanda, Geological Survey & Mines Bureau of Sri Lanka, preparing a trench for sampling of tsunami deposit. Leaves on the surface days or weeks after the tsunami and blanket the sand deposited by the tsunami.
Dr. Starin Fernanda, Geological Survey & Mines Bureau of Sri Lanka, preparing a trench for sampling of tsunami deposit. Leaves on the surface days or weeks after the tsunami and blanket the sand deposited by the tsunami.
Dr. Starin Fernanda, Geological Survey & Mines Bureau of Sri Lanka, preparing a trench for sampling of tsunami deposit. Leaves on the surface days or weeks after the tsunami and blanket the sand deposited by the tsunami.
Tsunami sand deposit at Nilaveli Beach on the northeastern coast of Sri Lanka following the December 26th, 2004 earthquake and tsunami in the Indian Ocean. The sand deposited by the tsunami is light colored and overlies a pre-tsunami darker sandy soil.
Tsunami sand deposit at Nilaveli Beach on the northeastern coast of Sri Lanka following the December 26th, 2004 earthquake and tsunami in the Indian Ocean. The sand deposited by the tsunami is light colored and overlies a pre-tsunami darker sandy soil.
On January 10, 2005, a landslide struck the community of La Conchita in Ventura County, California, destroying or seriously damaging 36 houses and killing 10 people. For a USGS rerpot on this event, please see USGS Open-file report, "Landslide Hazards at La Conchita, California."
On January 10, 2005, a landslide struck the community of La Conchita in Ventura County, California, destroying or seriously damaging 36 houses and killing 10 people. For a USGS rerpot on this event, please see USGS Open-file report, "Landslide Hazards at La Conchita, California."
Car transported by the 2004 tsunami in Sri Lanka.
Car transported by the 2004 tsunami in Sri Lanka.
Car transported by the 2004 tsunami in Sri Lanka.
Car transported by the 2004 tsunami in Sri Lanka.
![Dome within Mount St. Helens' crater viewed from the southeast. Ja...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img928.jpg?itok=zIAy4gON)
Dome within Mount St. Helens' crater viewed from the southeast. January 2006
Dome within Mount St. Helens' crater viewed from the southeast. January 2006
![Dome within Mount St. Helens' crater viewed from the west. January ...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img924.jpg?itok=DPrACcI5)
Dome within Mount St. Helens' crater viewed from the west. January 2005.
Dome within Mount St. Helens' crater viewed from the west. January 2005.
![Dome within Mount St. Helens' crater, aerial view from the south....](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img925.jpg?itok=GulQhXui)
Dome within Mount St. Helens' crater, aerial view from the south.
Dome within Mount St. Helens' crater, aerial view from the south.
Dome within Mount St. Helens' crater, January 2005, aerial view from the east.
Dome within Mount St. Helens' crater, January 2005, aerial view from the east.
![Mount St. Helens' new dome, from the south. Orange speck in the cen...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img926.jpg?itok=xVC46p1G)
Mount St. Helens' new dome, from the south. Orange speck in the center of the photo is a portable telemetered "spider." January 2005.
Mount St. Helens' new dome, from the south. Orange speck in the center of the photo is a portable telemetered "spider." January 2005.
![North end of Mount St. Helens' new dome, as seen from the east. ...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img923.jpg?itok=Mn8FOAZJ)
North end of Mount St. Helens' new dome, as seen from the east.
North end of Mount St. Helens' new dome, as seen from the east.
![Spider, a portable box enclosing volcanic activity monitoring equip...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img927.jpg?itok=TSL3ILJc)
Spider, a portable box enclosing volcanic activity monitoring equipment (orange box), resting on Mount St. Helens' dome, viewed from the south.
Spider, a portable box enclosing volcanic activity monitoring equipment (orange box), resting on Mount St. Helens' dome, viewed from the south.
![Steam plume rising from Mount St. Helens, viewed from the northwest...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img929.jpg?itok=I52yS4Tg)
Steam plume rising from Mount St. Helens, viewed from the northwest.
Steam plume rising from Mount St. Helens, viewed from the northwest.
Morton Bay and Red Hill Bay, Salton Sea, California.
Morton Bay and Red Hill Bay, Salton Sea, California.
Solar-powered streamgage in Secretary's homeland in Animas River above Tacoma, CO.
Solar-powered streamgage in Secretary's homeland in Animas River above Tacoma, CO.
![Aerial photo shows homes on the Florida coastline damaged during Hurricane Jeanne](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/post-Jeanne-0027.jpg?itok=TRCYiAix)
Photograph of the Florida coastline shows storm damage after Hurricane Jeanne's passage.
Photograph of the Florida coastline shows storm damage after Hurricane Jeanne's passage.
Large-scale poster describing USGS work.
The USGS studied air photos of the Big Sur coast taken in 1942 and 1994, in cooperation with the California Department of Transportation (Caltrans) and the University of California at Santa Cruz (UCSC).
Large-scale poster describing USGS work.
The USGS studied air photos of the Big Sur coast taken in 1942 and 1994, in cooperation with the California Department of Transportation (Caltrans) and the University of California at Santa Cruz (UCSC).
![Diagram of deep-seated landslide, from USGS Fact Sheet 3004–3072, “Landslide Types and Processes.”](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/BigSur10DeepSlideDiagDES.jpg?itok=1evKzlBd)
Diagram of deep-seated landslide, from USGS Fact Sheet 3004–3072, “Landslide Types and Processes.”
Diagram of deep-seated landslide, from USGS Fact Sheet 3004–3072, “Landslide Types and Processes.”