Translational slide: In this type of slide, the landslide mass moves along a roughly planar surface with little rotation or backward tilting.
Steven Sobieszćzyk
Steven Sobieszćzyk is a scientist and science communicator. While "Sobie" spent most of his career researching landslide hazards, flooding, sediment transport, and stream ecosystems, he now focuses on science communication and promoting scientific literacy. Steve is a multi-hazard responder and has spoken extensively about seismic, wildfire, landslide, flooding, and volcanic hazards.
CURRENT WORK
I'm a public affairs specialist with the USGS Office of Communications and Publishing (OCAP) serving as liaison and media lead for the USGS Natural Hazards Mission Area.
- Public affairs
- Media relations
- Graphic design
- Content creation
Science and Products
When it comes to talking to others, especially when explaining science, the key is consequences outweigh precision. You should always be honest, tell the truth, but don't sweat the small stuff. People care about relatability, not the mundane. Knowing what information isn't worth sharing is hard. There are professionals out there who can help. Like me.
Filter Total Items: 215
Translational Landslide
Translational slide: In this type of slide, the landslide mass moves along a roughly planar surface with little rotation or backward tilting.
Rotational Landslide
Rotational slide: This is a slide in which the surface of rupture is curved concavely upward and the slide movement is roughly rotational about an axis that is parallel to the ground surface and transverse across the slide.
Rotational slide: This is a slide in which the surface of rupture is curved concavely upward and the slide movement is roughly rotational about an axis that is parallel to the ground surface and transverse across the slide.
Block Slide
A block slide is a translational slide in which the moving mass consists of a single unit or a few closely related units that move downslope as a relatively coherent mass.
A block slide is a translational slide in which the moving mass consists of a single unit or a few closely related units that move downslope as a relatively coherent mass.
Earthflow
Earthflows have a characteristic "hourglass" shape. The slope material liquefies and runs out, forming a bowl or depression at the head. The flow itself is elongated and usually occurs in fine-grained materials or clay-bearing rocks on moderate slopes and under saturated conditions. However, dry flows of granular material are also possible.
Earthflows have a characteristic "hourglass" shape. The slope material liquefies and runs out, forming a bowl or depression at the head. The flow itself is elongated and usually occurs in fine-grained materials or clay-bearing rocks on moderate slopes and under saturated conditions. However, dry flows of granular material are also possible.
Rockfall
Rockfalls are abrupt movements of masses of geologic materials, such as rocks and boulders, which become detached from steep slopes or cliffs. Separation occurs along discontinuities such as fractures, joints, and bedding planes, and movement occurs by free-fall, bouncing, and rolling.
Rockfalls are abrupt movements of masses of geologic materials, such as rocks and boulders, which become detached from steep slopes or cliffs. Separation occurs along discontinuities such as fractures, joints, and bedding planes, and movement occurs by free-fall, bouncing, and rolling.
Topple
Toppling failures are distinguished by the forward rotation of a unit or units about some pivotal point, below or low in the unit, under the actions of gravity and forces exerted by adjacent units or by fluids in cracks.
Toppling failures are distinguished by the forward rotation of a unit or units about some pivotal point, below or low in the unit, under the actions of gravity and forces exerted by adjacent units or by fluids in cracks.
Debris Flow
A debris flow is a form of rapid mass movement in which a combination of loose soil, rock, organic matter, air, and water mobilizes as a slurry that flows downslope. Debris flows include <50% fines.
A debris flow is a form of rapid mass movement in which a combination of loose soil, rock, organic matter, air, and water mobilizes as a slurry that flows downslope. Debris flows include <50% fines.
Debris Avalanche
Debris avalanche: This is a variety of very rapid to extremely rapid debris flow.
Debris avalanche: This is a variety of very rapid to extremely rapid debris flow.
Creep
Creep is the imperceptibly slow, steady, downward movement of slope-forming soil or rock. Movement is caused by shear stress sufficient to produce permanent deformation, but too small to produce shear failure.
Creep is the imperceptibly slow, steady, downward movement of slope-forming soil or rock. Movement is caused by shear stress sufficient to produce permanent deformation, but too small to produce shear failure.
Lateral Spread
Lateral spreads are distinctive because they usually occur on very gentle slopes or flat terrain. The dominant mode of movement is lateral extension accompanied by shear or tensile fractures.
Lateral spreads are distinctive because they usually occur on very gentle slopes or flat terrain. The dominant mode of movement is lateral extension accompanied by shear or tensile fractures.
Types of Landslides
TYPES OF LANDSLIDES
National Ocean Month: 10 Ocean Field Sites You’ve Got to “Sea” to Believe (AD)
The ocean is a beautiful, dynamic, and sometimes dangerous place. Unsurprisingly, this is probably why a lot of USGS researchers spend their entire careers studying it. In celebration of National Ocean Month, we thought it would be a good time to dive in and feature ten ocean field sites you’ve got to “sea” to believe.
The ocean is a beautiful, dynamic, and sometimes dangerous place. Unsurprisingly, this is probably why a lot of USGS researchers spend their entire careers studying it. In celebration of National Ocean Month, we thought it would be a good time to dive in and feature ten ocean field sites you’ve got to “sea” to believe.
National Ocean Month: 10 Ocean Field Sites You’ve Got to “Sea” to Believe
The ocean is a beautiful, dynamic, and sometimes dangerous place. Unsurprisingly, this is probably why a lot of USGS researchers spend their entire careers studying it. In celebration of National Ocean Month, we thought it would be a good time to dive in and feature ten ocean field sites you’ve got to “sea” to believe.
The ocean is a beautiful, dynamic, and sometimes dangerous place. Unsurprisingly, this is probably why a lot of USGS researchers spend their entire careers studying it. In celebration of National Ocean Month, we thought it would be a good time to dive in and feature ten ocean field sites you’ve got to “sea” to believe.
Earthquakes: What You Feel
EARTHQUAKES: WHAT YOU FEEL
EARTHQUAKE INTENSITY
EARTHQUAKES: WHAT YOU FEEL
EARTHQUAKE INTENSITY
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.
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.
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.
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.
Wildfire Burn Severity Mapping
Have you ever wondered how scientists determine the burn severity of wildfire?
Have you ever wondered how scientists determine the burn severity of wildfire?
Wildfire Burn Severity Mapping (AD)
Have you ever wondered how scientists determine the burn severity of wildfire?
Have you ever wondered how scientists determine the burn severity of wildfire?
Science and Products
When it comes to talking to others, especially when explaining science, the key is consequences outweigh precision. You should always be honest, tell the truth, but don't sweat the small stuff. People care about relatability, not the mundane. Knowing what information isn't worth sharing is hard. There are professionals out there who can help. Like me.
Filter Total Items: 215
Translational Landslide
Translational slide: In this type of slide, the landslide mass moves along a roughly planar surface with little rotation or backward tilting.
Translational slide: In this type of slide, the landslide mass moves along a roughly planar surface with little rotation or backward tilting.
Rotational Landslide
Rotational slide: This is a slide in which the surface of rupture is curved concavely upward and the slide movement is roughly rotational about an axis that is parallel to the ground surface and transverse across the slide.
Rotational slide: This is a slide in which the surface of rupture is curved concavely upward and the slide movement is roughly rotational about an axis that is parallel to the ground surface and transverse across the slide.
Block Slide
A block slide is a translational slide in which the moving mass consists of a single unit or a few closely related units that move downslope as a relatively coherent mass.
A block slide is a translational slide in which the moving mass consists of a single unit or a few closely related units that move downslope as a relatively coherent mass.
Earthflow
Earthflows have a characteristic "hourglass" shape. The slope material liquefies and runs out, forming a bowl or depression at the head. The flow itself is elongated and usually occurs in fine-grained materials or clay-bearing rocks on moderate slopes and under saturated conditions. However, dry flows of granular material are also possible.
Earthflows have a characteristic "hourglass" shape. The slope material liquefies and runs out, forming a bowl or depression at the head. The flow itself is elongated and usually occurs in fine-grained materials or clay-bearing rocks on moderate slopes and under saturated conditions. However, dry flows of granular material are also possible.
Rockfall
Rockfalls are abrupt movements of masses of geologic materials, such as rocks and boulders, which become detached from steep slopes or cliffs. Separation occurs along discontinuities such as fractures, joints, and bedding planes, and movement occurs by free-fall, bouncing, and rolling.
Rockfalls are abrupt movements of masses of geologic materials, such as rocks and boulders, which become detached from steep slopes or cliffs. Separation occurs along discontinuities such as fractures, joints, and bedding planes, and movement occurs by free-fall, bouncing, and rolling.
Topple
Toppling failures are distinguished by the forward rotation of a unit or units about some pivotal point, below or low in the unit, under the actions of gravity and forces exerted by adjacent units or by fluids in cracks.
Toppling failures are distinguished by the forward rotation of a unit or units about some pivotal point, below or low in the unit, under the actions of gravity and forces exerted by adjacent units or by fluids in cracks.
Debris Flow
A debris flow is a form of rapid mass movement in which a combination of loose soil, rock, organic matter, air, and water mobilizes as a slurry that flows downslope. Debris flows include <50% fines.
A debris flow is a form of rapid mass movement in which a combination of loose soil, rock, organic matter, air, and water mobilizes as a slurry that flows downslope. Debris flows include <50% fines.
Debris Avalanche
Debris avalanche: This is a variety of very rapid to extremely rapid debris flow.
Debris avalanche: This is a variety of very rapid to extremely rapid debris flow.
Creep
Creep is the imperceptibly slow, steady, downward movement of slope-forming soil or rock. Movement is caused by shear stress sufficient to produce permanent deformation, but too small to produce shear failure.
Creep is the imperceptibly slow, steady, downward movement of slope-forming soil or rock. Movement is caused by shear stress sufficient to produce permanent deformation, but too small to produce shear failure.
Lateral Spread
Lateral spreads are distinctive because they usually occur on very gentle slopes or flat terrain. The dominant mode of movement is lateral extension accompanied by shear or tensile fractures.
Lateral spreads are distinctive because they usually occur on very gentle slopes or flat terrain. The dominant mode of movement is lateral extension accompanied by shear or tensile fractures.
Types of Landslides
TYPES OF LANDSLIDES
National Ocean Month: 10 Ocean Field Sites You’ve Got to “Sea” to Believe (AD)
The ocean is a beautiful, dynamic, and sometimes dangerous place. Unsurprisingly, this is probably why a lot of USGS researchers spend their entire careers studying it. In celebration of National Ocean Month, we thought it would be a good time to dive in and feature ten ocean field sites you’ve got to “sea” to believe.
The ocean is a beautiful, dynamic, and sometimes dangerous place. Unsurprisingly, this is probably why a lot of USGS researchers spend their entire careers studying it. In celebration of National Ocean Month, we thought it would be a good time to dive in and feature ten ocean field sites you’ve got to “sea” to believe.
National Ocean Month: 10 Ocean Field Sites You’ve Got to “Sea” to Believe
The ocean is a beautiful, dynamic, and sometimes dangerous place. Unsurprisingly, this is probably why a lot of USGS researchers spend their entire careers studying it. In celebration of National Ocean Month, we thought it would be a good time to dive in and feature ten ocean field sites you’ve got to “sea” to believe.
The ocean is a beautiful, dynamic, and sometimes dangerous place. Unsurprisingly, this is probably why a lot of USGS researchers spend their entire careers studying it. In celebration of National Ocean Month, we thought it would be a good time to dive in and feature ten ocean field sites you’ve got to “sea” to believe.
Earthquakes: What You Feel
EARTHQUAKES: WHAT YOU FEEL
EARTHQUAKE INTENSITY
EARTHQUAKES: WHAT YOU FEEL
EARTHQUAKE INTENSITY
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.
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.
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.
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.
Wildfire Burn Severity Mapping
Have you ever wondered how scientists determine the burn severity of wildfire?
Have you ever wondered how scientists determine the burn severity of wildfire?
Wildfire Burn Severity Mapping (AD)
Have you ever wondered how scientists determine the burn severity of wildfire?
Have you ever wondered how scientists determine the burn severity of wildfire?