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From February 1 to June 17, 2024, approximately 350 earthquakes were located at Mount St. Helens by the Pacific Northwest Seismic Network. Over 95% of the earthquakes were less than a magnitude 1.0 and too small to be felt at the surface. The number of earthquakes located per week appears to have reached a peak in early June, at 38 events per week. USGS graphic.
From February 1 to June 17, 2024, approximately 350 earthquakes were located at Mount St. Helens by the Pacific Northwest Seismic Network. Over 95% of the earthquakes were less than a magnitude 1.0 and too small to be felt at the surface. The number of earthquakes located per week appears to have reached a peak in early June, at 38 events per week. USGS graphic.
Comparison of February-June 2024 seismicity to previous seismic swarms (1987-2004). Upper left: Map of Mount St. Helens with a grayscale representing a digital elevation model. Earthquakes interpreted as recharge between 1987 and 2004 are plotted as a heatmap of earthquake density.
Comparison of February-June 2024 seismicity to previous seismic swarms (1987-2004). Upper left: Map of Mount St. Helens with a grayscale representing a digital elevation model. Earthquakes interpreted as recharge between 1987 and 2004 are plotted as a heatmap of earthquake density.
Earthquakes located at Mount St. Helens from 2008-2024, a non-eruptive period. This activity is consistent with normal, background levels. Top: Earthquake events located per week. The orange color at the far right denotes earthquakes from February to June 2024. Bottom: Earthquake depths below sea level (bsl) in kilometers.
Earthquakes located at Mount St. Helens from 2008-2024, a non-eruptive period. This activity is consistent with normal, background levels. Top: Earthquake events located per week. The orange color at the far right denotes earthquakes from February to June 2024. Bottom: Earthquake depths below sea level (bsl) in kilometers.
Fast-moving, highly destructive debris flows triggered by intense rainfall are one of the most dangerous post-fire hazards. The risk of floods and debris flows after fires increases due to vegetation loss and soil exposure. Cases of sudden and deadly debris flow are well documented along the western United States, particularly in Southern California.
Fast-moving, highly destructive debris flows triggered by intense rainfall are one of the most dangerous post-fire hazards. The risk of floods and debris flows after fires increases due to vegetation loss and soil exposure. Cases of sudden and deadly debris flow are well documented along the western United States, particularly in Southern California.
USGS fire science informs land, water, and emergency management decisions. Each year tens of thousands of wildfires cause billions of dollars of damage.
USGS fire science informs land, water, and emergency management decisions. Each year tens of thousands of wildfires cause billions of dollars of damage.
How hot do wildfires get?
How hot do wildfires get?
The beautiful Morning Glory pool is located near Old Faithful. However, it has changed over time because of people and past climate. But how?
The beautiful Morning Glory pool is located near Old Faithful. However, it has changed over time because of people and past climate. But how?
This PlaneCam video was produced by developing animation tracklines in ArcGlobe, using imagery from PlaneCam flights.
This PlaneCam video was produced by developing animation tracklines in ArcGlobe, using imagery from PlaneCam flights.
Timelapsed photo data is sequenced at about 1 pixel-averaged frame per day, meaning that all of the images from a given day are combined, and the RGB values for a given x/y location on the image are the average of every RGB value for that location for that day.
Timelapsed photo data is sequenced at about 1 pixel-averaged frame per day, meaning that all of the images from a given day are combined, and the RGB values for a given x/y location on the image are the average of every RGB value for that location for that day.
This PlaneCam video was produced by developing animation tracklines in ArcGlobe, using imagery from PlaneCam flights.
This PlaneCam video was produced by developing animation tracklines in ArcGlobe, using imagery from PlaneCam flights.
Timelapsed photo data is sequenced at about 1 pixel-averaged frame per day, meaning that all of the images from a given day are combined, and the RGB values for a given x/y location on the image are the average of every RGB value for that location for that day.
Timelapsed photo data is sequenced at about 1 pixel-averaged frame per day, meaning that all of the images from a given day are combined, and the RGB values for a given x/y location on the image are the average of every RGB value for that location for that day.
Timelapsed photo data is sequenced at about 1 pixel-averaged frame per day, meaning that all of the images from a given day are combined, and the RGB values for a given x/y location on the image are the average of every RGB value for that location for that day.
Timelapsed photo data is sequenced at about 1 pixel-averaged frame per day, meaning that all of the images from a given day are combined, and the RGB values for a given x/y location on the image are the average of every RGB value for that location for that day.
USGS scientists remember where they were during the 1992 Landers earthquake in Southern California
USGS scientists remember where they were during the 1992 Landers earthquake in Southern California
USGS seismologist Susan Hough recalls what the 1992 Landers earthquake felt like from Pasadena, CA.
USGS seismologist Susan Hough recalls what the 1992 Landers earthquake felt like from Pasadena, CA.
USGS seismologist Andrew Michael talks about the remote location of the 1992 Landers earthquake and how researchers were able to use satellite data to better see the quake’s impacts.
USGS seismologist Andrew Michael talks about the remote location of the 1992 Landers earthquake and how researchers were able to use satellite data to better see the quake’s impacts.
USGS seismologist Susan Hough talks about her role following the 1992 Landers earthquake and seismic monitoring stations in Southern California.
USGS seismologist Susan Hough talks about her role following the 1992 Landers earthquake and seismic monitoring stations in Southern California.
USGS field technician Scott Lydeen recalls what the aftermath of the 1992 Landers earthquake looked like.
USGS field technician Scott Lydeen recalls what the aftermath of the 1992 Landers earthquake looked like.
USGS seismologist Susan Hough described the Southern California Seismic Network and how it was used for the 1992 Landers earthquake.
USGS seismologist Susan Hough described the Southern California Seismic Network and how it was used for the 1992 Landers earthquake.
A debris flow in Mount St.
Most recent snapshot from Camera 2 at Madeira Beach, Florida. Camera hosted by Shoreline Island Resort.
Most recent snapshot from Camera 2 at Madeira Beach, Florida. Camera hosted by Shoreline Island Resort.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
