About 3,800 years ago Yellowstone National Park’s Lower Geyser Basin underwent a significant environmental change.
We know Yellowstone today as the site of a huge caldera that erupted 631,000 years ago and covered the region in a thick layer of ash. But what was present before the caldera?
Yellowstone Volcano receives ample attention for being a large, active, caldera-forming volcanic system. However, hidden in its metaphorical shadow is another volcanic complex — the Absaroka Volcanoes.
The Yellowstone hotspot has long been thought to have initiated about 17 million years ago. A growing volume of evidence, however, suggests that it has been around much longer.
Although 2020 may not have been a great year for many of us, it was a pretty interesting year in Yellowstone National Park. With this first Yellowstone Caldera Chronicles article of the new year, let’s take the traditional look back at what happened in Yellowstone during the previous 12 months.
The largest geyser in Yellowstone National Park has been more active in the past two years than ever before.
Although Yellowstone Lake may seem relatively calm, the floor of the lake is littered with hydrothermal explosion craters. Studies are beginning to reveal the details of these explosions.
Hawaii's Kilauea volcano on the Big Island erupted and shot a cloud of steam and ash into the air, drawing people trying to get a glimpse of the lava.
The Hawaii county Civil Defense Agency has asked residents to stay indoors after the Kilauea volcano erupted following a series of earthquakes.
We know from decades of observation that Yellowstone’s geyser basins are always changing, but what about thermal activity beneath the waters of Yellowstone Lake?
A study by the U.S. Geological Survey has found that during times of extreme drought, the Old Faithful geyser in Yellowstone National Park has gone dormant.
(CNN) -- A Canadian woman has returned five artifacts she took from Pompeii in 2005, saying they have plagued her with bad luck.
Old Faithful is the most famous geyser in the world, but who named the iconic feature? And how does the current frequency of its eruptions compare to when it was first described?
How do volcanologists use measurements made at the surface to gain insight into what’s going on inside Earth, hidden from direct observation? Like pandemic forecasters and many other scientists, they use models.
Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory.
Unlike most volcano observatories, Yellowstone is monitored by a consortium of institutions.
A woman who illegally entered Yellowstone National Park while it was closed due to the coronavirus pandemic was badly burned after falling into a thermal feature.
Two recent earthquakes have people asking again whether the shaking will lead to a Yellowstone eruption.
Scientists have documented many similar volcanic systems.
Did you know that Yellowstone's magma reservoir produces a "shadow" that we can observe on the Earth's surface?
Hikers, take note. Panama's hilly and densely forested landscape lends itself to exploration on foot. Just two hours from Panama City, El Valle de Anton is a picturesque valley spanning a massive dormant volcano crater. Several well-maintained trails extend from the village through the forest and past waterfalls to the crater rim's highest point, known as La India Dormida (the sleeping Indian woman).
Hydrothermal explosions are the most likely of Yellowstone's various volcanic hazards
Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory.
Tens of thousands of revelers in Indonesia’s capital of Jakarta were soaked by torrential rains as they waited for New Year's Eve fireworks.
Earthquakes in Yellowstone can be caused by volcanic activity, subsurface water or tectonic plates.
