In general, the magma (molten rock) in volcanoes ranges from...
Audio
Explore the USGS collection of audio includes podcasts, interviews, and sounds.
Eyes on Earth
Eyes on Earth
Eyes on Earth is a podcast on remote sensing, Earth observation, land change and science, brought to you by the USGS Earth Resources Observation and Science (EROS) Center.
Sounds of Yellowstone
Sounds of Yellowstone
The USGS Sounds of Yellowstone series lets you listen the natural sounds of geysers, hot springs, and mudpots found through Yellowstone National Park in Wyoming, USA. Also on YouTube (video), Apple and Google Podcasts.
Filter Total Items: 629
Magnitude 6.4s in Pakistan
Early this morning, October 29, 2008, a magnitude 6.4 earthquake struck near Quetta, Pakistan. Twelve hours later, a second 6.4 struck in the same area. Dr. Harley Benz, Scientist-in-Charge at the USGS National Earthquake Information Center, fills us in with the details.
Early this morning, October 29, 2008, a magnitude 6.4 earthquake struck near Quetta, Pakistan. Twelve hours later, a second 6.4 struck in the same area. Dr. Harley Benz, Scientist-in-Charge at the USGS National Earthquake Information Center, fills us in with the details.
Why are coral reefs in peril and what is being done to protect them?
Why are coral reefs in peril and what is being done to protect them?Coral reefs can be damaged by natural processes, such as storms, but they are increasingly at risk from human activities. Oil spills and pollutants...
Why are coral reefs in peril and what is being done to protect them?
Why are coral reefs in peril and what is being done to protect them?Coral reefs can be damaged by natural processes, such as storms, but they are increasingly at risk from human activities. Oil spills and pollutants...
What is Remote Sensing?
Remote sensing is the gathering of information about the Earth from a distance. Information can be collected about...
Remote sensing is the gathering of information about the Earth from a distance. Information can be collected about...
What should I do during an earthquake?
Listen to hear the answer.
Hazard Roundup--September 2008
Hurricane Gustav; Hurricane Ike; Real-time storm surge sensors; Gulf coast impacts and satellite imagery; hurricane photography; Great California ShakeOut
Hurricane Gustav; Hurricane Ike; Real-time storm surge sensors; Gulf coast impacts and satellite imagery; hurricane photography; Great California ShakeOut
What is E. coli and what should I do if it is in my drinking water?
What is E. coli and what should I do if it is in my drinking water?Listen to hear the answer.
Farming Carbon to Help the Atmosphere and the Land
Farming Carbon to Help the Atmosphere and the LandLong-standing farming practices in California's Sacramento-San Joaquin River Delta expose fragile peat soils to wind, rain and cultivation, emit carbon dioxide (CO2) and cause land subsidence. To capture or contain the carbon, farmers would ‘grow’ wetlands.
Farming Carbon to Help the Atmosphere and the Land
Farming Carbon to Help the Atmosphere and the LandLong-standing farming practices in California's Sacramento-San Joaquin River Delta expose fragile peat soils to wind, rain and cultivation, emit carbon dioxide (CO2) and cause land subsidence. To capture or contain the carbon, farmers would ‘grow’ wetlands.
What are snakeheads and what do they look like?
Listen to hear the answer.
What You Otter Know About Sea Otters - Part 3
The last week in September is known as Sea Otter Awareness Week throughout California. To bring more attention to the issues surrounding the sea otter and its ongoing recovery from near extinction, we interviewed Tim Tinker, USGS lead sea-otter researcher. Video also provided in the Transcript/Links section.
The last week in September is known as Sea Otter Awareness Week throughout California. To bring more attention to the issues surrounding the sea otter and its ongoing recovery from near extinction, we interviewed Tim Tinker, USGS lead sea-otter researcher. Video also provided in the Transcript/Links section.
What You Otter Know About Sea Otters - Part 2
The last week in September is known as Sea Otter Awareness Week throughout California. To bring more attention to the issues surrounding the sea otter and its ongoing recovery from near extinction, we interviewed Tim Tinker, USGS lead sea-otter researcher. Video also provided in the Transcript/Links section.
The last week in September is known as Sea Otter Awareness Week throughout California. To bring more attention to the issues surrounding the sea otter and its ongoing recovery from near extinction, we interviewed Tim Tinker, USGS lead sea-otter researcher. Video also provided in the Transcript/Links section.
What You Otter Know About Sea Otters - Part 1
The last week in September is known as Sea Otter Awareness Week throughout California. To bring more attention to the issues surrounding the sea otter and its ongoing recovery from near extinction, we interviewed Tim Tinker, USGS lead sea-otter researcher. Video also provided in the Transcript/Links section.
The last week in September is known as Sea Otter Awareness Week throughout California. To bring more attention to the issues surrounding the sea otter and its ongoing recovery from near extinction, we interviewed Tim Tinker, USGS lead sea-otter researcher. Video also provided in the Transcript/Links section.
Breaking Ice in the Arctic
Do you want to know what it sounds like to break ice in the Arctic Ocean? This audio file is of the U.S. Coast Guard Cutter Healy doing exactly that. This recording was taken outside on the ship's bow, so you can hear the ice breaking on the ship and the wind in the background.
Do you want to know what it sounds like to break ice in the Arctic Ocean? This audio file is of the U.S. Coast Guard Cutter Healy doing exactly that. This recording was taken outside on the ship's bow, so you can hear the ice breaking on the ship and the wind in the background.
Seafloor Mapping Sounds
The multibeam sends out a soft ping (12 kilohertz) and the sub-bottom profiler emits a chirp sound (3.5 kilohertz). These sound signals are sent from the ship into the seafloor and the return signals that bounce back are used to determine ocean depth. Some of you, but not all of you, will be able to hear the ping immediately (about half a second) before the chirp.
The multibeam sends out a soft ping (12 kilohertz) and the sub-bottom profiler emits a chirp sound (3.5 kilohertz). These sound signals are sent from the ship into the seafloor and the return signals that bounce back are used to determine ocean depth. Some of you, but not all of you, will be able to hear the ping immediately (about half a second) before the chirp.
What is a lava tube?
Listen to hear the answer.
Hazard Roundup--August 2008
A roundup of the previous month's hazard-related events around the world, with some newsworthy tidbits.
A roundup of the previous month's hazard-related events around the world, with some newsworthy tidbits.
Why Do Minerals Matter?
You might be surprised where minerals pop up; they're just about everywhere. We sit down with Kathleen Johnson, USGS Mineral Resources Program Coordinator, as she walks us through just how valuable minerals are to our lives.
You might be surprised where minerals pop up; they're just about everywhere. We sit down with Kathleen Johnson, USGS Mineral Resources Program Coordinator, as she walks us through just how valuable minerals are to our lives.
What is sterling silver?
Listen to hear the answer.
What do we know about the interior of the Earth?
Listen to hear the answer.
Can you define safe water?
Safe water means water that will not harm you if you come in contact with it. The most common use of this term applies to drinking water, but it could also apply to water for swimming or other uses. To be safe, the water must...
Safe water means water that will not harm you if you come in contact with it. The most common use of this term applies to drinking water, but it could also apply to water for swimming or other uses. To be safe, the water must...