Every geologist needs a field hat to protect them from scorching sun and drenching rain, but a really lucky geologist will have a trusty dog. Meet the adventurous dogs who trekked across north Alaska, and the geologists who explored with them.
Even eruptions from the usually-gentle Hawaiian volcanoes can pack a hidden punch. The hot, molten splatter of lava from a bubbling explosion at Halemaʻumaʻu Crater sloshed onto the webcam, melting wire insulation. But the webcam is hearty, and kept operating without interruption.
Claw marks rip open tree bark, oozing sap like a botanical blood. Scratches like this scream a single message loud and clear: a bear was here. They aren’t subtle creatures.
Tanaga Island is a tiny patch of beauty, fire, and rock stranded in the Bering Sea. The picturesque island is a hidden gem of black rocks, dramatic waterfalls, velvety moss, and tendrils of fog in these fieldwork photographs from the U.S. Geological Survey.
“Thirteen thousand people will die in the Cascadia earthquake and tsunami,” reads Kathryn Schulz’s now-infamous New Yorker article. “Everything west of Interstate 5 will be toast.” Turns out a very similar event occurred in Chile 55 years ago. What wisdom can its survivors share with residents of the Northwest?
Measuring a stream’s level is essential for everything from flood forecasting to navigation, and has been a key duty of hydrologists for decades.
Judging from this photograph, Camp No.1 on the Ochlockonee River in Florida is the best-dressed field camp I've ever seen. This dashing geoscientist was at a United States Geologic Survey field camp in 1907 to 1908.
United States Geological Survey field researchers have needed to get creative over the years at getting their boats up-stream. While portaging and lining up boats is common practice, the activity is far more amusing when undertaken while wearing such lovely field hats.
On the request of NASA, the U.S. Geological Survey has prepared two highly detailed maps of the Moon. Fortunately, they've also been made available to the public, so check 'em out in all their lunar glory.
Back in 1904, placer miners combed the Shoshone River for any trace of precious metals. With gold and silver found nearby, long days and hard work sorting through stream deposits had the chance of paying off big.
Stream gaging sure was a dapper occupation at the turn of the century! Here's the various techniques United States Geological Survey hydrologists used to measure current without even dipping a toe into the streams and rivers.
The border between Mongolia and China falls roughly on the border between two ecosystems. In this satellite image from the US Geological Survey (USGS), you can see where the southern steppes of Mongolia give way to the northern Chinese desert. The transition zone is known as the Edrengiyn Nuruu.
Parsing out how to picture time is a tricky process. When we talk about time on a human scale — in seconds, minutes, days, years, decades — it's not so difficult to grasp. But when we shift to the universe's scale and begin to grapple with billions, things get much more complicated.
If there was a tsunami warning in your area, could you escape on foot? That's the question a new tool released by the USGS takes on. The Pedestrian Evacuation Analyst takes into account not just foot-speed but terrain, and also highlights the areas of high-ground that would likely be the safest points.
It's not very often that you get a chance to take a very, very close look at a bee. But these gorgeous macro pictures of bees, wasps, and more show us just how much we've been missing out on.
The U.S. Geological Survey has posted a pair of before-and-after Landsat photographs for the landslide in Oso, Washington. The landslide collapsed on March 22nd, burying the community of Oso and briefly blocking the river.
It's been fifty years since the Great Alaska Earthquake, the biggest ever to shake the United States. At magnitude 9.2, it leveled a city and was felt as far away as Texas. This fascinating short documentary reveals how it also led to a scientific breakthrough.
On March 22nd, a massive landslide buried a town in the state of Washington. It is the most deadly landslide within the United States in a decade, and we knew it could happen. Living in the path of impending catastrophe is a choice we all make daily, but that doesn't make it easy.
Seismologists have found that, contrary to popular thought, earthquakes in the central U.S. are not slowly tapering off — instead the threat appears to be building.
In today's comments we watched NASA's website go (temporarily?) dark, talked about the off-screen deaths of our favorite characters, and learned the theory behind your pet's curious pre-earthquake behavior.