Videos

Volcanic ash in Kansas? It's true there's thick deposits there, but where are the source volcanoes? Geologists began puzzling over this in the late 1800s when these deposits were first recognized. 

If a geyser erupts and no one is there to hear it, does it make a sound? Of course it does, and now we can hear it no matter when it happens thanks to a new monitoring station in Yellowstone National Park.

In this monthly update of the Yellowstone Volcano Observatory, we present our take on the top five headlines for 2023.

0:12 - Earthquakes, Deformation

1:20 - Steamboat Geyser Eruptions

2:30 - New Monitoring for Hydrothermal

3:24 - Volcanic Eruptions at Yellowstone

4:34 - Magma Chamber below Yellowstone

Steamboat Geyser is the tallest geyser in the world. It has been putting on a show the last few years for visitors at Yellowstone National Park with a record number of water eruptions, 48 eruptions each in 2019 and 2020. But it's only had eight eruptions in 2023. Is Steamboat losing steam? 

Lava flows are one of the coolest (or maybe hottest!) features about volcanoes, but what would a lava flow look like if you could peel away the surface and take a peek underneath?

Yellowstone is a geologic wonderland with over 2 billion years of Earth's history recorded in the rocks. But some of that history is missing. Where did it go? We’ll look into that mystery in the October 2023 update from the Yellowstone Volcano Observatory.

The Gibbon River, named for Colonel (later General) John Gibbon, who was a member of an early exploring survey of the Yellowstone region, starts near the Center of Yellowstone National Park. All of the outflow from Norris Geyser Basin drains into the river, which merges with the Firehole River in the west part of the park to become the Madison River.

Cinnamon Spouter, in Black Sand Basin, has long stretches of bubbling activity. A “sizziling fracture” was first noticed at this location in 1933, but little more was noted until the current spouting pool developed in 1988–1989.

The tallest geyser in the world, with eruptions that exceed 120 meters (400 feet), Steamboat Geyser is known for experiencing years of frequent eruptions followed by years to decades of very few eruptions. The geyser has been in a more active period since 2018.

Beryl Spring, in the Gibbon River Canyon, is chemically complex—it has a pool with a basic composition and a steam vent with an acidic composition! It’s location next to the highway has caused numerous problems for the road, requiring some creative engineering solutions and a lot of geological expertise!

Mud Pool is located near the Daisy Geyser complex, not far from Old Faithful. Since the 1980s it has acted as a perpetual spouter.

Although Terrace Spring may appear to be boiling, but it’s temperature is a relatively cool 140 F (60 C). The roiling in the pol is caused by carbon dioxide bubbles. Thousands of years ago, when Yellowstone’s climate was wetter, the water of the springs had a different composition, allowing travertine to form—just like that seen today at Mammoth Hot Spring

Named for a visit in 1891 by members of the Fifth International Geological Congress, the feature in Norris Geyser Basin has behaved as a quiet pool, geyser, and roiling mud pot.

The Firehole River drops 150 feet over three tiers in this cascade, or falls, located 2.5 miles upstream of Old Faithful.  The name refers to Kepler Hoyt, the 12-year-old son of Wyoming’s territorial governor, who visited Yellowstone National Park in 1881. Philetus Norris, second superintendent of Yellowstone National Park, named the cascade.

This feature, not far from Old Faithful, has never been known to truly erupt. It gets its name from adjacent Chinaman Spring, which received its name because a concessioner (who might have been of Japanese descent) in the early days of the park used that spring as a laundry.

This waterfall on Glen Creek is in the Golden Gate area of Yellowstone National Park. The high cliffs on the west side of the canyon are ash deposits from a massive volcanic eruption 2.1 million years ago, while the massif (Bunsen Peak) on the east side is a block of magma that solidified in the shallow subsurface tens of millions of years ago.

Sizzling ground, which is hot and has a small amount of water, resembles a frying pan. These features are acidic and can be found throughout Yellowstone National Park, although one of the best and most accessible examples is along the road just north of Norris Geyser Basin.

What geologic hazard is most likely to occur in the Yellowstone region on human timescales? The answer might not be what you think.

What geologic hazard is most likely to occur in the Yellowstone region on human timescales?

Geysers and hot springs are some of the most dynamic geologic features on the planet. They are always changing and sometimes that change happens in places where we can see and appreciate it. This has been the case on Geyser Hill, near Old Faithful, in Yellowstone National Park.

Old Faithful, one of the icons of Yellowstone National Park and probably the most famous geyser in the world. But how faithful is it really? That's the question we're going to tackle in this June 1, 2023 update from the Yellowstone Volcano Observatory.