Images

A USGS scientist walks along Santa Cruz Main Beach at the edge of the San Lorenzo River in Santa Cruz, California, wearing a backpack with GPS equipment. She is collecting elevation data that will be used to create a topographic map of the beach. This mapping effort is part of recurring surveys in the Monterey Bay area.

Damage from a major post-wildfire landslide that occurred on 25 December 2003 near Devore, San Bernardino County as a result of the Old/Grand Prix fires that ran through the San Bernardino Mountains.

Damage from a major post-wildfire landslide that occurred on 9 January 2018 near Montecito, Santa Barbara County as a result of the 2017 Thomas Fire.

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Collapsed arch in Guayanilla, Puerto Rico.

Alex Nichols, Wayne Baldwin, and Eric Moore deploying a streamer in Puerto Rico.

From left to right – Uri ten Brink, Eric Moore, Wayne Baldwin, Alex Nichols, Jason Chaytor, and Captain Orlando Espinoza. Less than two months after the largest earthquake in the seismic sequence, the USGS Woods Hole Coastal and Marine Science Center organized a rapid response seismic survey.

Permanently flooded shore in Guayanilla, Puerto Rico.

Iguana in the marine science laboratory at the university of Puerto Rico Isla Magueyes in La Parguera, Puerto Rico.

Map of seismic activity in Southwestern Puerto Rico.

The USGS National Integrated Water Availability Assessments (IWAAs) concept map shows daily estimates of natural water storage (water present on the landscape such as standing water, snowpack, soil water, and shallow groundwater) for approximately 110,00

R/V Sultana. Less than two months after the largest earthquake in the seismic sequence, the USGS Woods Hole Coastal and Marine Science Center organized a rapid response seismic survey.

Regional map of Puerto Rico. Less than two months after the largest earthquake in the seismic sequence, the USGS Woods Hole Coastal and Marine Science Center organized a rapid response seismic survey.

USGS marine technician Wayne Baldwin prepares to deploy the hydrophone array during a seismic research cruise off the southwest coast of Puerto Rico on board the R/V Sultana in March 2020.

Looking upstream from the bridge at the sampling site on the Second River above Washington Ave at Belleville, NJ (USGS Downstream order number 01392518) 

USGS research geologist Jason Chaytor (L) and marine technicians Alex Nichols (center) and Eric Moore (R) deploy the “sparker” sound source on a seismic research cruise off the southwest coast of Puerto Rico aboard the R/V Sultana in March 2020.

USGS marine technicians Alex Nichols (L) and Eric Moore (R) deploy the hydrophone array on a seismic research cruise off the southwest coast of Puerto Rico aboard the R/V Sultana in March 2020.

Aerial view of a bomb detonating on Mauna Loa near the source of the 1935 Humu‘ula lava flow on the morning of December 27, 1935. This was one of 20 demolition bombs dropped on the lava flow that morning by the Army Bombing Squadron from Luke Field, O‘ahu.

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A U.S. Army Air Corps biplane is prepared for a mission to drop bombs on a lava flow advancing toward Hilo during the Mauna Loa 1935 eruption.

The stage of Belle Fourche River near Moorcroft rose nearly 10 feet one Saturday due to ice jamming and back water, and was nearing NWS flood stage.