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coral reef with fish and blue water
Pacific Island Coral Reef and Fish
Pacific Island Coral Reef and Fish
Pacific Island Coral Reef and Fish

Coral reef fish assemblage in the Kealakekua Bay Marine Life Conservation District off the leeward side of Hawaiʻi Island, Hawaiʻi on 11 November 2016.

Coral reef fish assemblage in the Kealakekua Bay Marine Life Conservation District off the leeward side of Hawaiʻi Island, Hawaiʻi on 11 November 2016.

photograph of 2 person with brightly colored shirts in a conference room with white walls with black stripes
Matthew Andersen, USGS, and Sefanaia Nawadra, SPREP
Matthew Andersen, USGS, and Sefanaia Nawadra, SPREP
Matthew Andersen, USGS, and Sefanaia Nawadra, SPREP

Matthew Andersen, USGS, and the Director General of Secretariat for the Pacific Regional Environmental Programme (SPREP), Sefanaia Nawadra, at the 4th Pacific Ocean Pacific Climate Change Conference, sponsored by SPREP, the National University of Samoa, and Victoria University of Wellington, New Zealand, 20-24 May 2024.

Matthew Andersen, USGS, and the Director General of Secretariat for the Pacific Regional Environmental Programme (SPREP), Sefanaia Nawadra, at the 4th Pacific Ocean Pacific Climate Change Conference, sponsored by SPREP, the National University of Samoa, and Victoria University of Wellington, New Zealand, 20-24 May 2024.

Photograph of 2 persons at a table and 3 persons standing behind with papers and flags of the U.S. and Dominican Republic
USGS signs MOU with Dominican Republic Geological Survey
USGS signs MOU with Dominican Republic Geological Survey
USGS signs MOU with Dominican Republic Geological Survey

USGS and the National Geological Survey of the Dominican Republic signed a Memorandum of Understanding on March 12, 2024, in Reston, Virginia, for earth science cooperation.

USGS and the National Geological Survey of the Dominican Republic signed a Memorandum of Understanding on March 12, 2024, in Reston, Virginia, for earth science cooperation.

photograph tan loose ground with cactus and other desert plants under a partly cloudy blue sky
USGS scientists mapping vegetation and land use in Los Planes watershed, Baja California Sur, Mexico
USGS scientists mapping vegetation and land use in Los Planes watershed, Baja California Sur, Mexico
USGS scientists mapping vegetation and land use in Los Planes watershed, Baja California Sur, Mexico

USGS scientists mapping vegetation and land use in Los Planes watershed, Baja California Sur, Mexico, as part of a joint project to understand the impacts of installing natural infrastructure in dryland streams (NIDS), structures made from rock, sandbags and wood, meant

USGS scientists mapping vegetation and land use in Los Planes watershed, Baja California Sur, Mexico, as part of a joint project to understand the impacts of installing natural infrastructure in dryland streams (NIDS), structures made from rock, sandbags and wood, meant

Photograph of a person holding a white curved tube on a red reel in a silver well pipe on white sand with desert vegetation
Monitoring a shallow groundwater well in Los Planes watershed, Baja California Sur, Mexico
Monitoring a shallow groundwater well in Los Planes watershed, Baja California Sur, Mexico
Monitoring a shallow groundwater well in Los Planes watershed, Baja California Sur, Mexico

USGS and Alumbra Innovations scientists monitoring a shallow groundwater well in Los Planes watershed, Baja California Sur, Mexico. (Laura Norman, USGS)

photograph of black board with colored chalk showing drawings of clouds, water drops, plants, flowers, and the Earth
Caminos del Agua word cloud
Caminos del Agua word cloud
Caminos del Agua word cloud

A student chalkboard word cloud at the Caminos Del Agua Water Festival, Los Planes watershed, Baja California Sur, Mexico. (Víctor Sevilla Unda, Autonomous University of Baja California Sur)

A student chalkboard word cloud at the Caminos Del Agua Water Festival, Los Planes watershed, Baja California Sur, Mexico. (Víctor Sevilla Unda, Autonomous University of Baja California Sur)

Photograph of river valley with gray/brown rocks and sediment, and green landcover on mountains
Confluence of Rio Loco and Rio Coca near El Chaco, Ecuador Jan 2024
Confluence of Rio Loco and Rio Coca near El Chaco, Ecuador Jan 2024
Confluence of Rio Loco and Rio Coca near El Chaco, Ecuador Jan 2024

Erosion on the Rio Coca and its tributary, the Rio Loco (foreground), after a waterfall collapse, Ecuador. (Molly Wood, USGS)

Erosion on the Rio Coca and its tributary, the Rio Loco (foreground), after a waterfall collapse, Ecuador. (Molly Wood, USGS)

Photograph of stream in mountain area with green ground cover and brown sediment, blue sky
Rio Coca (Ecuador) near erosion front Jan 2024
Rio Coca (Ecuador) near erosion front Jan 2024
Rio Coca (Ecuador) near erosion front Jan 2024

Rio Coca, Ecuador, near current (January, 2024) location of the erosion front, which is migrating upstream toward the intake of the Coca Codo Sinclair hydropower facility. (Molly Wood, USGS)

Rio Coca, Ecuador, near current (January, 2024) location of the erosion front, which is migrating upstream toward the intake of the Coca Codo Sinclair hydropower facility. (Molly Wood, USGS)

Photograph of two rows of people informally dressed and standing on a bridge with mountains with green landcover behind
Project group on bridge over the Río Coca near the Coca Codo Sinclair hydropower facility near Simón Bolivar, Ecuador Jan 2024
Project group on bridge over the Río Coca near the Coca Codo Sinclair hydropower facility near Simón Bolivar, Ecuador Jan 2024
Project group on bridge over the Río Coca near the Coca Codo Sinclair hydropower facility near Simón Bolivar, Ecuador Jan 2024

The international, interagency team during a field site visit to the Río Coca, January 24, 2024. The team includes members from the Electric Corporation of Ecuador (CELEC), US Army Corps of Engineers, and USGS. (Pablo Espinoza, Electric Corp. Ecuador (CELEC))

The international, interagency team during a field site visit to the Río Coca, January 24, 2024. The team includes members from the Electric Corporation of Ecuador (CELEC), US Army Corps of Engineers, and USGS. (Pablo Espinoza, Electric Corp. Ecuador (CELEC))

Photograph of stream channel with steep banks, sediment, and mountains with green ground cover
Río Coca near El Chaco, Ecuador with new canyon since 2020 (Jan 2024)
Río Coca near El Chaco, Ecuador with new canyon since 2020 (Jan 2024)
Río Coca near El Chaco, Ecuador with new canyon since 2020 (Jan 2024)

Erosion on the Río Coca upstream of the former San Rafael waterfall site, Ecuador, showing a newly opened canyon that has formed since 2020. (Molly Wood, USGS) 
  

Erosion on the Río Coca upstream of the former San Rafael waterfall site, Ecuador, showing a newly opened canyon that has formed since 2020. (Molly Wood, USGS) 
  

Silver lattice bridge and slab of black asphalt in stream channel in mountain area with gray bolders and sediment
Bridge over Río Marker near the confluence with Río Loco near El Chaco, Ecuador Jan 2024
Bridge over Río Marker near the confluence with Río Loco near El Chaco, Ecuador Jan 2024
Bridge over Río Marker near the confluence with Río Loco near El Chaco, Ecuador Jan 2024

Erosion in the Río Coca valley upstream of the former waterfall location, showing major damage to the roadway over the Río Marker, a tributary to the Río Loco, and temporary roadway access bridge. (Molly Wood, USGS)

Erosion in the Río Coca valley upstream of the former waterfall location, showing major damage to the roadway over the Río Marker, a tributary to the Río Loco, and temporary roadway access bridge. (Molly Wood, USGS)

Broken black asphalt roadway in foreground with white X mark and centerline with mountains and steep valleys in background
Collapsed E45 road on western side of the Río Coca river corridor, Ecuador Jan 2024
Collapsed E45 road on western side of the Río Coca river corridor, Ecuador Jan 2024
Collapsed E45 road on western side of the Río Coca river corridor, Ecuador Jan 2024

Damage to the E45 road caused by valley-wall erosion following the 2020 failure of a lava dam, Rio Coca valley, Ecuador, January 2024. (Amy East, USGS)

Damage to the E45 road caused by valley-wall erosion following the 2020 failure of a lava dam, Rio Coca valley, Ecuador, January 2024. (Amy East, USGS)

landscape photograph showing construction vehicles and dark sand-like slopes along a body of brown water, forests, clouds
Sediment deposits at the discharge outlet of a hydropower facility on the Rio Coca, Ecuador.
Sediment deposits at the discharge outlet of a hydropower facility on the Rio Coca, Ecuador.
Sediment deposits at the discharge outlet of a hydropower facility on the Rio Coca, Ecuador.

Sediment deposits at the discharge outlet of the Coca Codo Sinclair hydropower facility on the Rio Coca, Ecuador. (Molly Wood, USGS)

Woman in a blue raincoat and a steeply eroded river valley with forests on top and grey exposed soil and rocks, cloudy sky
Molly Wood at a viewpoint on the Rio Coca, Ecuador, where substantial erosion and landslides have occurred
Molly Wood at a viewpoint on the Rio Coca, Ecuador, where substantial erosion and landslides have occurred
Molly Wood at a viewpoint on the Rio Coca, Ecuador, where substantial erosion and landslides have occurred

Molly Wood at a viewpoint on the Rio Coca, Ecuador, where substantial erosion and landslides have occurred. 

Mountainous landscape with green trees, cloudy sky, a river meandering and exposed soil and rock on steep cliffs
Regressive erosion on the Rio Coca upstream of the former San Rafael waterfall site, Ecuador
Regressive erosion on the Rio Coca upstream of the former San Rafael waterfall site, Ecuador
Regressive erosion on the Rio Coca upstream of the former San Rafael waterfall site, Ecuador

Regressive erosion on the Rio Coca upstream of the former San Rafael waterfall site, Ecuador. (Molly Wood, USGS)

Landscape showing stream floodplain and erosion of streambanks, with cloudy sky and forested mountains
Streambank erosion on the Rio Coca after a waterfall collapse, Ecuador.
Streambank erosion on the Rio Coca after a waterfall collapse, Ecuador.
Streambank erosion on the Rio Coca after a waterfall collapse, Ecuador.

Streambank erosion on the Rio Coca after a waterfall collapse, Ecuador. (Molly Wood, USGS)

landscape showing river valley with bare steep hillsides and green forests on the hill tops
Rapid erosion of hillsides along the Rio Coca in Ecuador after collapse of a lava dam.
Rapid erosion of hillsides along the Rio Coca in Ecuador after collapse of a lava dam.
Rapid erosion of hillsides along the Rio Coca in Ecuador after collapse of a lava dam.

Rapid erosion of hillsides along the Rio Coca in Ecuador after collapse of a lava dam, April, 2023. (Molly Wood, USGS)

gangway on left leads to a standpipe down to brown stream with forested hills and the brown stream in the background
Sediment and flow monitoring station on the Rio Quijos, Rio Coca watershed, Ecuador
Sediment and flow monitoring station on the Rio Quijos, Rio Coca watershed, Ecuador
Sediment and flow monitoring station on the Rio Quijos, Rio Coca watershed, Ecuador

Sediment and flow monitoring station on the Rio Quijos, Rio Coca watershed, Ecuador. Rio Quijos joins Rio Salado to form Rio Coca upstream of a hydropower facility. The station is jointly operated by the Ecuador National Institute of Meteorology and Hydrology and the Electric Corporation of Ecuador (CELEC). (Molly Wood, USGS)

Sediment and flow monitoring station on the Rio Quijos, Rio Coca watershed, Ecuador. Rio Quijos joins Rio Salado to form Rio Coca upstream of a hydropower facility. The station is jointly operated by the Ecuador National Institute of Meteorology and Hydrology and the Electric Corporation of Ecuador (CELEC). (Molly Wood, USGS)

Reservoir and concrete dam structures and buildings with cloudy sky and forested hillsides
Upstream diversion dam at Coca Codo Sinclair hydropower facility on the Rio Coca, Ecuador
Upstream diversion dam at Coca Codo Sinclair hydropower facility on the Rio Coca, Ecuador
Upstream diversion dam at Coca Codo Sinclair hydropower facility on the Rio Coca, Ecuador

Upstream diversion dam at Coca Codo Sinclair hydropower facility on the Rio Coca, Ecuador. (Molly Wood, USGS)

Rushing river, green vegetation and waterfalls in background
Iguazu Falls
Iguazu Falls
Iguazu Falls

Iguazu Falls on the border of Brazil and Argentina. A rushing river in the foreground is bordered by green vegetation, with waterfalls in background.

Iguazu Falls on the border of Brazil and Argentina. A rushing river in the foreground is bordered by green vegetation, with waterfalls in background.

Looking down into Iguazu Falls waterfalls from above. Flat horizon and white fluffy clouds on top half of photo.
Iguazu Falls from above
Iguazu Falls from above
Iguazu Falls from above

Iguazu Falls view from above, on the border of Brazil and Argentina. Green vegetation surrounds the waterfalls.

Iguazu Falls view from above, on the border of Brazil and Argentina. Green vegetation surrounds the waterfalls.