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Volcano Hazard Program videos.

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Thumbnail image of a man speaking in front of a desolate Yellowstone thermal basin Thumbnail image of a man speaking in front of a desolate Yellowstone thermal basin
Hawaii versus Yellowstone (Yellowstone monthly update - December 2025)
Hawaii versus Yellowstone (Yellowstone monthly update - December 2025)

Just last week, Kīlauea put on another dramatic display of lava fountaining and flows within the caldera, during its 37th episode of this most recent eruption. It doesn't seem like Hawaii and Yellowstone have a lot in common, but actually, those two magmatic systems have a common cause.

Just last week, Kīlauea put on another dramatic display of lava fountaining and flows within the caldera, during its 37th episode of this most recent eruption. It doesn't seem like Hawaii and Yellowstone have a lot in common, but actually, those two magmatic systems have a common cause.

Thumbnail image of a man gesturing towards trees in the background Thumbnail image of a man gesturing towards trees in the background
Emergency fix at a Yellowstone monitoring site (Yellowstone Monthly Update October 2025)
Emergency fix at a Yellowstone monitoring site (Yellowstone Monthly Update October 2025)

The Yellowstone caldera is vast – 45 miles across by 30 miles wide. You could fit over 60 islands of Manhattan in this area. There are deep canyons, like the one on the Yellowstone River, that reveal a complex geologic history. And, forested landscapes and features remind us that this special place is ever-changing.

The Yellowstone caldera is vast – 45 miles across by 30 miles wide. You could fit over 60 islands of Manhattan in this area. There are deep canyons, like the one on the Yellowstone River, that reveal a complex geologic history. And, forested landscapes and features remind us that this special place is ever-changing.

Thumbnail image of a man with his arms in the air in a meadow with cliffs in the background Thumbnail image of a man with his arms in the air in a meadow with cliffs in the background
Lava flows in Yellowstone! (Yellowstone Monthly Update September 2025)
Lava flows in Yellowstone! (Yellowstone Monthly Update September 2025)

Picture a Yellowstone eruption. What comes to mind? It’s a huge explosion, right? Like the one that formed the caldera about 631,000 years ago. But the most common form of eruption in Yellowstone isn’t a huge explosion, it’s a lava flow.

Picture a Yellowstone eruption. What comes to mind? It’s a huge explosion, right? Like the one that formed the caldera about 631,000 years ago. But the most common form of eruption in Yellowstone isn’t a huge explosion, it’s a lava flow.

Color photograph of lava pond in volcanic vent Color photograph of lava pond in volcanic vent
August 5, 2025 — Lava flowing in the north vent
August 5, 2025 — Lava flowing in the north vent

During a USGS Hawaiian Volcano Observatory helicopter overflight on the morning of August 5, geologists observed a lava pond within the north vent of the ongoing Kīlauea summit eruption. The pond was feeding a subterranean lava tube contained within the east side of the vent cone, toward the floor of Halema‘uma‘u crater.

During a USGS Hawaiian Volcano Observatory helicopter overflight on the morning of August 5, geologists observed a lava pond within the north vent of the ongoing Kīlauea summit eruption. The pond was feeding a subterranean lava tube contained within the east side of the vent cone, toward the floor of Halema‘uma‘u crater.

Rainier seismic swarm update - July 14, 2025

In this video, Cascades Volcano Observatory (CVO) scientists Tyler Paladino and Alex Iezzi and Mount Rainier National Park Geologist Scott Beason provide an update on the earthquake swarm at Mount Rainier.

In this video, Cascades Volcano Observatory (CVO) scientists Tyler Paladino and Alex Iezzi and Mount Rainier National Park Geologist Scott Beason provide an update on the earthquake swarm at Mount Rainier.

Grand Prismatic Spring: Boiling, colorful, and full of bacteria! Grand Prismatic Spring: Boiling, colorful, and full of bacteria!
Grand Prismatic Spring: Boiling, colorful, and full of bacteria! (Yellowstone Monthly Update - July 2025)
Finding Lava Flows in Yellowstone Finding Lava Flows in Yellowstone
Finding Lava Flows in Yellowstone (Yellowstone Monthly Update – May 2025)
Finding Lava Flows in Yellowstone (Yellowstone Monthly Update – May 2025)

If you want to find a lava flow in Yellowstone, look to the trees! The vegetation is telling us more than you might think.

YVO Scientist-in-Charge Mike Poland reveals how vegetation can be used to map geology in this month's update from the Yellowstone Volcano Observatory.

If you want to find a lava flow in Yellowstone, look to the trees! The vegetation is telling us more than you might think.

YVO Scientist-in-Charge Mike Poland reveals how vegetation can be used to map geology in this month's update from the Yellowstone Volcano Observatory.

Phot of Cleveland Volcano in eruption and title of presentation by J. Lowenstern Phot of Cleveland Volcano in eruption and title of presentation by J. Lowenstern
The Challenge of Volcano Monitoring, Eruption Forecasting, and Protecting Vulnerable Populations
The Challenge of Volcano Monitoring, Eruption Forecasting, and Protecting Vulnerable Populations

This presentation by Dr. Jake Lowenstern was prepared for the AGU 2024-2025 Distinguished Lecture Series. It discusses the challenges of volcano monitoring, eruption forecasting, and protecting vulnerable populations.

Biscuit Basin Update, Hydrothermal Explosion on July 23, 2024 Biscuit Basin Update, Hydrothermal Explosion on July 23, 2024
Biscuit Basin Hydrothermal Explosion Update (Yellowstone Monthly Update — October 2024)
Biscuit Basin Hydrothermal Explosion Update (Yellowstone Monthly Update — October 2024)

Let’s get you caught up on what we’ve learned about the July 23, 2024, hydrothermal explosion in Biscuit Basin, in this Yellowstone Volcano Observatory Monthly Update for October 2024. 

Read Caldera Chronicles

Morning Glory Pool Was Blue? Morning Glory Pool Was Blue?
Morning Glory Pool Was Blue? (Yellowstone Monthly Update - July 2024)
Morning Glory Pool Was Blue? (Yellowstone Monthly Update - July 2024)

The beautiful Morning Glory pool is located near Old Faithful. However, it has changed over time because of people and  past climate. But how? 

A scientist is sitting in the lab, surrounded by volcano gas monitoring equipment, talking about his work. A scientist is sitting in the lab, surrounded by volcano gas monitoring equipment, talking about his work.
Gas Geochemistry and the USAID-USGS Volcano Disaster Assistance Program
Gas Geochemistry and the USAID-USGS Volcano Disaster Assistance Program

The purpose of the USAID USGS Volcano Disaster Assistance Program is to make sure that volcanic eruptions don't become volcanic disasters. VDAP’s focus is to support volcano observatories through a combination of in-country or virtual support during volcanic eruptions or unrest and long-term capacity building through donations and training.

The purpose of the USAID USGS Volcano Disaster Assistance Program is to make sure that volcanic eruptions don't become volcanic disasters. VDAP’s focus is to support volcano observatories through a combination of in-country or virtual support during volcanic eruptions or unrest and long-term capacity building through donations and training.

Swimming Pools at Yellowstone? Swimming Pools at Yellowstone?
Swimming Pools at Yellowstone? (Yellowstone Monthly Update - June 2024)
Swimming Pools at Yellowstone? (Yellowstone Monthly Update - June 2024)

Up until the 1950s, visitors to the Old Faithful area could take a dip. Not at a geyser, but in a real swimming pool. The full story is in this month’s video update. 

Photo of new eruption deposits Photo of new eruption deposits
HVO geologists observe new fissure system
HVO geologists observe new fissure system

USGS Hawaiian Volcano Observatory geologists visited the fissure that formed on the upper Southwest Rift Zone of Kīlauea volcano early this morning, June 3, 2024. Elevated gas emissions are being carried downwind, in a southwest direction. USGS video.

USGS Hawaiian Volcano Observatory geologists visited the fissure that formed on the upper Southwest Rift Zone of Kīlauea volcano early this morning, June 3, 2024. Elevated gas emissions are being carried downwind, in a southwest direction. USGS video.

Lave erupting from a fissure as seen from a helicopter flover. Lave erupting from a fissure as seen from a helicopter flover.
Flyover of Southwest Rift Zone (June 3, 2024)
Flyover of Southwest Rift Zone (June 3, 2024)

During an overflight at approximately 6 a.m., USGS Hawaiian Volcano Observatory geologists observed the fissures system that opened on the upper portion of the Southwest Rift Zone early this morning. Approximately half a mile (about 1 km) in length, only the southwest portion of the system was active by daylight. 

During an overflight at approximately 6 a.m., USGS Hawaiian Volcano Observatory geologists observed the fissures system that opened on the upper portion of the Southwest Rift Zone early this morning. Approximately half a mile (about 1 km) in length, only the southwest portion of the system was active by daylight. 

lava erupting from a fissure lava erupting from a fissure
Aerial video of the Southwest Rift Zone eruption of Kīlauea
Aerial video of the Southwest Rift Zone eruption of Kīlauea

Aerial video of the Southwest Rift Zone eruption of Kīlauea, viewed during an overflight at approximately 6 a.m. on June 3, 2024. USGS video.

Mount St. Helens vs. Yellowstone Mount St. Helens vs. Yellowstone
Mount St. Helens VS Yellowstone (Yellowstone Monthly Update - May 2024)
Mount St. Helens VS Yellowstone (Yellowstone Monthly Update - May 2024)

Mount St. Helens and Yellowstone are two of the most well-known volcanoes in the United States. They have some pretty obvious differences, but they have some similarities as well. So, just how similar are Mount St. Helens and Yellowstone?

Mount St. Helens and Yellowstone are two of the most well-known volcanoes in the United States. They have some pretty obvious differences, but they have some similarities as well. So, just how similar are Mount St. Helens and Yellowstone?

Text says Mount St. Helens, Land of Transformation Text says Mount St. Helens, Land of Transformation
Mount St. Helens: Land of Transformation
Mount St. Helens: Land of Transformation

Mt St. Helens before 1980, Land of Transformation

A stylistic interpretation of pre eruption snowcapped Mount St Helens as seen from a blue Spirit Lake with green rolling hills.  

Text changes to May 18, 1980, Eruption. There is a grey explosion of rocks and smoke coming out the top of Mt St Helens. The hills and water are grey and brown.

Mt St. Helens before 1980, Land of Transformation

A stylistic interpretation of pre eruption snowcapped Mount St Helens as seen from a blue Spirit Lake with green rolling hills.  

Text changes to May 18, 1980, Eruption. There is a grey explosion of rocks and smoke coming out the top of Mt St Helens. The hills and water are grey and brown.

Text says Mount St. Helens, Land of Transformation Text says Mount St. Helens, Land of Transformation
Mount St. Helens: Land of Transformation
Mount St. Helens: Land of Transformation

Mt St. Helens before 1980, Land of Transformation

A stylistic interpretation of pre eruption snowcapped Mount St Helens as seen from a blue Spirit Lake with green rolling hills.  

Text changes to May 18, 1980, Eruption. There is a grey explosion of rocks and smoke coming out the top of Mt St Helens. The hills and water are grey and brown.

Mt St. Helens before 1980, Land of Transformation

A stylistic interpretation of pre eruption snowcapped Mount St Helens as seen from a blue Spirit Lake with green rolling hills.  

Text changes to May 18, 1980, Eruption. There is a grey explosion of rocks and smoke coming out the top of Mt St Helens. The hills and water are grey and brown.

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