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Images related to natural hazards.
One floodgate on the Morganza Spillway was opened on May 14, 2011. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
One floodgate on the Morganza Spillway was opened on May 14, 2011. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
One floodgate on the Morganza Spillway was opened on May 14, 2011. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
One floodgate on the Morganza Spillway was opened on May 14, 2011. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
USGS scientists take streamflow and water quality measurements downstream of the Bonnet Carre Spillway near Norco, La. The Army Corps of Engineers uses USGS streamflow data to help them manage flood control structures.
USGS scientists take streamflow and water quality measurements downstream of the Bonnet Carre Spillway near Norco, La. The Army Corps of Engineers uses USGS streamflow data to help them manage flood control structures.
USGS scientist Cindy Sibley prepares to take a water quality measurment on the Atchafalaya River Basin near Melville, La.
USGS scientist Cindy Sibley prepares to take a water quality measurment on the Atchafalaya River Basin near Melville, La.
A close-up of the swiftly moving lava stream, plunging into the lava lake.
A close-up of the swiftly moving lava stream, plunging into the lava lake.
USGS scientists Cindy Sibley and Mike Descant calibrate the water quality monitor on the Atchafalaya River Basin near Melville, La.
USGS scientists Cindy Sibley and Mike Descant calibrate the water quality monitor on the Atchafalaya River Basin near Melville, La.
A complex configuration has been in place deep within the vent cavity in Halema`uma`u crater. Lava upwells in the west portion of the vent floor (upper left of photograph), feeding the small, crusted, circular lava lake.
A complex configuration has been in place deep within the vent cavity in Halema`uma`u crater. Lava upwells in the west portion of the vent floor (upper left of photograph), feeding the small, crusted, circular lava lake.
The western Kamoamoa fountain-fed lava flows advanced over 1997 lavas (dark flow in foreground) with 1965 and 1968 lavas buried by Pu‘u ‘Ō‘ō cinder to the far left. Pu‘u ‘Ō‘ō is in the distant background.
The western Kamoamoa fountain-fed lava flows advanced over 1997 lavas (dark flow in foreground) with 1965 and 1968 lavas buried by Pu‘u ‘Ō‘ō cinder to the far left. Pu‘u ‘Ō‘ō is in the distant background.
USGS scientist Cindy Sibley looks at the rising waters on the Atchafalaya River Basin near Melville, La.
USGS scientist Cindy Sibley looks at the rising waters on the Atchafalaya River Basin near Melville, La.
USGS scientist Cindy Sibley prepares to take a water quality measurment on the Atchafalaya River Basin near Melville, La.
USGS scientist Cindy Sibley prepares to take a water quality measurment on the Atchafalaya River Basin near Melville, La.
USGS scientists Mike Descant and Cindy Sibley take water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientists Mike Descant and Cindy Sibley take water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientist Mike Descant takes water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientist Mike Descant takes water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientists take water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientists take water quality measurements on the Atchafalaya River Basin near Melville, La.
Floodwaters rise in Baton Rouge, La.
A traveling USGS water quality lab.
USGS scientist Paul Frederick manually checks the water levels near a streamgage on the Mississippi River in Baton Rouge, La.
USGS scientist Paul Frederick manually checks the water levels near a streamgage on the Mississippi River in Baton Rouge, La.
USGS scientists Mike Descant and Cindy Sibley take water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientists Mike Descant and Cindy Sibley take water quality measurements on the Atchafalaya River Basin near Melville, La.
The floodwaters rise on the Atchafalaya River Basin near Melville, La.
The floodwaters rise on the Atchafalaya River Basin near Melville, La.
USGS scientists Paul Frederick and Mike Descant take streamflow measurements on the the Mississippi River in Baton Rouge, La.
USGS scientists Paul Frederick and Mike Descant take streamflow measurements on the the Mississippi River in Baton Rouge, La.
USGS scientists Mike Descant and Cindy Sibley take water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientists Mike Descant and Cindy Sibley take water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientist Paul Frederick checks a streamgage on the Mississippi River in Baton Rouge, La.
USGS scientist Paul Frederick checks a streamgage on the Mississippi River in Baton Rouge, La.