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Maciej Obryk wearing USGS logo polo shirt in standing in front of forested background
Maciej Obryk Staff Profile Photo
Maciej Obryk Staff Profile Photo
Maciej Obryk Staff Profile Photo

Maciej Obryk staff profile photo. Research Hydrologist with the USGS Cascades Volcano Observatory.

Maciej Obryk staff profile photo. Research Hydrologist with the USGS Cascades Volcano Observatory.

Mount Hood December 2023 EQ Swarm Support Graphic
Mount Hood December 2023 EQ Swarm Support Graphic
Mount Hood December 2023 EQ Swarm Support Graphic
Mount Hood December 2023 EQ Swarm Support Graphic

Mount Hood, Oregon, earthquakes from a swarm that occurred December 8-13, 2023 as compared to previous earthquakes. The recent earthquakes are shown with red circles. Earthquakes that have occurred since 2010 are shown as unfilled gray circles. All circles are sized by their magnitude. Top: Map view of seismicity at Mount Hood.

Mount Hood, Oregon, earthquakes from a swarm that occurred December 8-13, 2023 as compared to previous earthquakes. The recent earthquakes are shown with red circles. Earthquakes that have occurred since 2010 are shown as unfilled gray circles. All circles are sized by their magnitude. Top: Map view of seismicity at Mount Hood.

Scientist maintaining monitoring station on Mount Hood, Oregon
Scientist maintaining monitoring station on Mount Hood, Oregon
Scientist maintaining monitoring station on Mount Hood, Oregon
Scientist maintaining monitoring station on Mount Hood, Oregon

USGS Cascades Volcano Observatory field crew conducts maintenance at station LSON at Mount Hood (in the distance). LSON was one of three new stations installed at Mount Hood in 2020, to create a more robust monitoring network at this volcano. Photo taken September 14, 2021 by B. Pauk.

USGS Cascades Volcano Observatory field crew conducts maintenance at station LSON at Mount Hood (in the distance). LSON was one of three new stations installed at Mount Hood in 2020, to create a more robust monitoring network at this volcano. Photo taken September 14, 2021 by B. Pauk.

Mount St. Helens by A. Mosbrucker
Mount St. Helens by A. Mosbrucker
Mount St. Helens by A. Mosbrucker
Mount St. Helens by A. Mosbrucker

Mount St. Helens by A. Mosbrucker. Looking SE towards the volcano up the valley. 

Mount Rainier volcano hazards and lahar arrival times in Puyallup and Nisqually River valleys
Mount Rainier volcano hazards and lahar arrival times in Puyallup and Nisqually River valleys
Mount Rainier volcano hazards and lahar arrival times in Puyallup and Nisqually River valleys
Mount Rainier volcano hazards and lahar arrival times in Puyallup and Nisqually River valleys

Mount Rainier (Washington) volcano hazard zones and estimated lahar (volcanic mudflow) arrival times for the Puyallup and Nisqually River valleys.

Field team installs scanning DOAS at Mount St. Helens
Field team installs scanning DOAS at Mount St. Helens
Field team installs scanning DOAS at Mount St. Helens
Field team installs scanning DOAS at Mount St. Helens

USGS Cascades Volcano Observatory Physical Science Technician Brian Meyers installs a data telemetry antenna on a volcano monitoring station at Mount St. Helens. A DOAS scanner is mounted above the flat-panel antenna at the top of the mast.

USGS Cascades Volcano Observatory Physical Science Technician Brian Meyers installs a data telemetry antenna on a volcano monitoring station at Mount St. Helens. A DOAS scanner is mounted above the flat-panel antenna at the top of the mast.

Videos

thumbnail for ways world changed MSH Ways the 1980 Mount St. Helens Eruption Changed Our World (AD)
Ways the 1980 Mount St. Helens Eruption Changed Our World (AD)
Ways the 1980 Mount St. Helens Eruption Changed Our World (AD)

The May 18, 1980, eruption of Mount St. Helens was historic and fundamentally changed how we see volcanoes. For those who lost family and friends, homes, and their livelihoods, it was an unimaginable tragedy. For others around the world, the eruption was an exciting curiosity, an experience they could share with their kids and grandkids.

The May 18, 1980, eruption of Mount St. Helens was historic and fundamentally changed how we see volcanoes. For those who lost family and friends, homes, and their livelihoods, it was an unimaginable tragedy. For others around the world, the eruption was an exciting curiosity, an experience they could share with their kids and grandkids.

thumbnail for ways world changed MSH Ways the 1980 Mount St. Helens Eruption Changed Our World
Ways the 1980 Mount St. Helens Eruption Changed Our World
Ways the 1980 Mount St. Helens Eruption Changed Our World

The May 18, 1980, eruption of Mount St. Helens was historic and fundamentally changed how we see volcanoes. For those who lost family and friends, homes, and their livelihoods, it was an unimaginable tragedy. For others around the world, the eruption was an exciting curiosity, an experience they could share with their kids and grandkids.

The May 18, 1980, eruption of Mount St. Helens was historic and fundamentally changed how we see volcanoes. For those who lost family and friends, homes, and their livelihoods, it was an unimaginable tragedy. For others around the world, the eruption was an exciting curiosity, an experience they could share with their kids and grandkids.

thumbnail for 5 things MSH 5 Incredible Facts About Mount St. Helens (AD)
5 Incredible Facts About Mount St. Helens (AD)
5 Incredible Facts About Mount St. Helens (AD)

May is Volcano Awareness Month in Washington State. There's no better time to learn five incredible facts about Mount St. Helens. This list is a truncated version of the popular 30 Cool Facts about Mount St. Helens (usgs.gov) poster.

May is Volcano Awareness Month in Washington State. There's no better time to learn five incredible facts about Mount St. Helens. This list is a truncated version of the popular 30 Cool Facts about Mount St. Helens (usgs.gov) poster.

thumbnail for 5 things MSH 5 Incredible Facts About Mount St. Helens
5 Incredible Facts About Mount St. Helens
5 Incredible Facts About Mount St. Helens

May is Volcano Awareness Month in Washington State. There's no better time to learn five incredible facts about Mount St. Helens. This list is a truncated version of the popular 30 Cool Facts about Mount St. Helens (usgs.gov) poster.

May is Volcano Awareness Month in Washington State. There's no better time to learn five incredible facts about Mount St. Helens. This list is a truncated version of the popular 30 Cool Facts about Mount St. Helens (usgs.gov) poster.

Deformation and geochemical anomalies near South Sister, Oregon Tracking uplift near Three Sisters volcanoes, using semi-permanent GPS instruments
Tracking uplift near Three Sisters volcanoes, using semi-permanent GPS instruments
Tracking uplift near Three Sisters volcanoes, using semi-permanent GPS instruments

USGS geologist Dan Dzurisin is near Sisters, in Central Oregon, to set up portable GPS monitoring equipment to track something that's been going on for 25 years and still goes on today. It’s uplift, a subtle rise in the ground’s surface, in an area west of South Sister volcano.

USGS geologist Dan Dzurisin is near Sisters, in Central Oregon, to set up portable GPS monitoring equipment to track something that's been going on for 25 years and still goes on today. It’s uplift, a subtle rise in the ground’s surface, in an area west of South Sister volcano.

Status of (mostly) WA Volcanoes: Report to Emergency Managers 2020-21
Status of (mostly) WA Volcanoes: Report to Emergency Managers 2020-21
Status of (mostly) WA Volcanoes: Report to Emergency Managers 2020-21

Jon Major, scientist-in-charge of the USGS Cascades Volcano Observatory, provides an overview of the major volcano hazards in the Cascades, the function and responsibilities of the Cascades Volcano Observatory, and a brief synopsis of what's been going on at Mount Baker, Glacier Peak, Mount Rainier, Mount Adams, Mount St.

Jon Major, scientist-in-charge of the USGS Cascades Volcano Observatory, provides an overview of the major volcano hazards in the Cascades, the function and responsibilities of the Cascades Volcano Observatory, and a brief synopsis of what's been going on at Mount Baker, Glacier Peak, Mount Rainier, Mount Adams, Mount St.

Audio

CoreFacts
CoreFacts Album Artwork
CoreFacts Album Artwork
How far did the ash from Mount St. Helens travel?
How far did the ash from Mount St. Helens travel?
CoreFacts
CoreFacts Album Artwork
CoreFacts Album Artwork
How far did the ash from Mount St. Helens travel?

Welcome to CoreFacts, where we're always short on time and big on science. I'm Brian Campbell. Today's question is …

How far did the ash from Mount St. Helens travel?

Welcome to CoreFacts, where we're always short on time and big on science. I'm Brian Campbell. Today's question is …

How far did the ash from Mount St. Helens travel?