Multimedia Gallery

An HVO geologist photographs a small breakout covering the last stretch of exposed asphalt near the intersection of highways 130 and 137, just west of the current County lava viewing area.

A Landslide dam located 15 km northwest of Jacmel. The dam has breached and should pose no future hazard.

This photo shows a landslide that deposited disaggregated limestone fragments in river valley.

This photo shows the dense concentration of landslides in limestone near the Haiti earthquake fault zone.

Boulders of intact limestone that fell and rolled during the earthquake from cliffs along the Haiti earthquake fault zone.

Earthquake-triggered landslide on south coast of Haiti near village of Nan Diamant.

Earthquake-triggered landslide on south coast of Haiti near village of Nan Diamant.

A clear, conical trap collects emerging aquatic insects on Navigation Pool 8 of the Upper Mississippi River for a USGS study examining the effects of Asian carp on insect-eating birds.

The health and population growth of the southern sea otter -- a federally listed threatened species -- can serve as an indicator of the health and condition of California's coastal waters.

USGS researchers discovered a new species of turtle. The Pearl River map turtle makes its home in the Pearl River of Louisiana and Mississippi.

USGS Sirenia Project researchers studying manatees in Florida.

USGS researchers at work at Shark River, Everglades National Park.

You may notice a green, red or brown film on your favorite boating or swimming area in the summer. This coloring could mean that the water is affected by harmful algal blooms. Harmful algal blooms are an accumulation of tiny organisms known as algae and can release harmful toxins into the environment. Pictured here is Rock Creek Lake in Iowa covered in algal blooms.

You may notice a green, red or brown film on your favorite boating or swimming area in the summer. This coloring could mean that the water is affected by harmful algal blooms. Harmful algal blooms are an accumulation of tiny organisms known as algae and can release harmful toxins into the environment. Pictured here is a beach on Mozingo Lake in Missouri covered in algal

You may notice a green, red or brown film on your favorite boating or swimming area in the summer. This coloring could mean that the water is affected by harmful algal blooms. Harmful algal blooms are an accumulation of tiny organisms known as algae and can release harmful toxins into the environment. Pictured here is Elysian Lake in Minnesota covered in algal blooms.

You may notice a green, red or brown film on your favorite boating or swimming area in the summer. This coloring could mean that the water is affected by harmful algal blooms. Harmful algal blooms are an accumulation of tiny organisms known as algae and can release harmful toxins into the environment. If you see a bloom, avoid the area. Pictured here is a beach on Marion

You may notice a green, red or brown film on your favorite boating or swimming area in the summer. This coloring could mean that the water is affected by harmful algal blooms. Harmful algal blooms are an accumulation of tiny organisms known as algae and can release harmful toxins into the environment. Pictured here is Binder Lake in Iowa covered in algal blooms. One of the

You may notice a green, red or brown film on your favorite boating or swimming area in the summer. This coloring could mean that the water is affected by harmful algal blooms. Harmful algal blooms are an accumulation of tiny organisms known as algae and can release harmful toxins into the environment. Pictured here is Binder Lake in Iowa covered in algal blooms.

You may notice a green, red or brown film on your favorite boating or swimming area in the summer. This coloring could mean that the water is affected by harmful algal blooms. Harmful algal blooms are an accumulation of tiny organisms known as algae and can release harmful toxins into the environment. Pictured here is a bloom on the shore of Lake Dora, FL.

You may notice a green, red or brown film on your favorite boating or swimming area in the summer. This coloring could mean that the water is affected by harmful algal blooms. Harmful algal blooms are an accumulation of tiny organisms known as algae and can release harmful toxins into the environment. Pictured here is Lake Dora, FL, covered in algal blooms.

Margaret Hiza Redsteer has been named one of the lead authors of a chapter in the next IPCC report, due to be published in 2014. Hiza Redsteer has been assigned as a lead author of Chapter 15 of the Fifth Assessment Report, entitled Adaption, Planning, and Implementation. This chapter will assess current adaption to climate variability, all levels of adaptation policies,

Asbury (Abby) H. Sallenger has been named one of the authors of a chapter in the next IPCC report, due to be published in 2014. Sallenger has been assigned to co-author Chapter 5 of the Fifth Assessment Report, entitled Coastal Systems and Low-Lying Areas. This chapter will contain an international assessment of climate change impacts, adaptation and vulnerabilities for

On April 20, 2010, the BP Deepwater Horizon drilling platform collapsed and sank in the Gulf of Mexico, causing one of the largest oil spills in history. One of the big dilemmas in responding to the oil spil is how to clean up the oil itself. One way currently under research is to use bacteria that naturally break down oil. USGS microbiologists have collected pre-spill

Ship Island tropical storm weather scenario.

Chandeleur Islands moderate waves weather scenario.

Cat Island moderate waves weather scenario.

Petit Bois Island calm conditions weather scenario.

Horn Island calm conditions weather scenario.

Breton Island calm conditions weather scenario.

Western Santa Rosa Island moderate waves weather scenario.

Perdido Key moderate waves weather scenario.

Dauphin Island moderate waves weather scenario.

High resolution satellite imagery showed the landscape and building damages before and after the magnitude-7 earthquake hit Haiti in the beginning of 2010. This image was taken before the earthquake. These images are part of the USGS Hazard Data Distribution System, which acquires and delivers satellite and aerial imagery in near-real time during natural or human-caused

High resolution satellite imagery showed the landscape and building damages before and after the magnitude-7 earthquake hit Haiti in the beginning of 2010. This image was taken after the earthquake. These images are part of the USGS Hazard Data Distribution System, which acquires and delivers satellite and aerial imagery in near-real time during natural or human-caused

Image of the silica cell wall of the diatom 'Didymosphenia geminata' from Rio Espolon, Chile. The sample was collected early in 2010 from an extensive bloom on the river. The image has been processed to show the silica cell wall, removing the organic cell contents and the stalk
material.

A manatee feeds on sea grass beds in Ten Thousand Islands region of Florida.

This aerial view shows how Faka Union Canal (visible as a straight channel of water) connects the coastal environment, where manatees feed, to freshwater inlets. The Ten Thousand Islands region in the foreground supports sea grass beds where manatees feed. During cold winter months, manatees can swim up Faka Union Canal to a series of residential canals, where the unique

A USGS technician finishes construction on a monitoring station used to monitor surface salinity and temperature below Faka Union Canal Weir #1, Florida. By measuring hydrologic conditions here, researchers found that freshwater flow rates help maintain warm water pockets in downstream areas of the canal. The warm water refuges downstream attract manatees during cold

A manatee swims downstream from a weir in Faka Union Canal known to create a strong salinity gradient downstream.

Freshwater flowing over the Faka Union Canal Weir #1 near Port of the Islands, Collier County, Florida. During cold weather, freshwater flows here can maintain a downstream salinity gradient that creates a warm water refuge for manatees.

The Faka Union Canal Weir #1 (Collier County, Florida) helps create a downstream hydrological haven for manatees. During the cold winter months, the right flow conditions can maintain a salinity gradient known as a halocline that traps warm water near the bottom of the residential canals at Port of the Islands.

A USGS technician collects a water sample at the Faka Union Canal Weir #1, Collier County, Florida. The sample was used to help determine the source of the warm water responsible for the site's popularity among manatees as a warm water refuge.

USGS biological sampling trap collecting emerging insects to determine the quantity and quality of insects as potential food resources available to insect-eating birds.

The endangered Devils Hole pupfish lives only in Devils Hole in the Mojave Desert.

African rock pythons are the largest snake in Africa, but now some have been found in Florida. They can eat goats, warthogs, and even crocodiles. In Florida, they are an invasive species.

USGS Cooperative Research Unit graduate student Ambre Chaudoin monitors dissolved oxygen levels, pH, and temperature in endangered Devils Hole pupfish spawning habitat in Devils Hole.

USGS Cooperative Research Unit graduate student Ambre Chaudoin monitors pupfish spawning behavior in Devils Hole, the only habitat for endangered Devils Hole pupfish.The USGS cameras that captured effects of an earthquake on Devils Hole can be seen in this picture.