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Geologic Hazards Science Center images.
Seismic signals from the August 7th, 2024 tsunamigenic landslide recorded on seismic station AK.SWD, located approximately 30 km (approx. 18.6 mi) from the landslide location. Three directions of ground motion are shown. The gray line is the high-frequency filtered signal.
Seismic signals from the August 7th, 2024 tsunamigenic landslide recorded on seismic station AK.SWD, located approximately 30 km (approx. 18.6 mi) from the landslide location. Three directions of ground motion are shown. The gray line is the high-frequency filtered signal.
USGS scientists Bill Schulz and Mason Einbund collaborate with University of Puerto Rico-Mayagüez professor Stephen Hughes at Yabucoa, Puerto Rico landslide monitoring station.
USGS scientists Bill Schulz and Mason Einbund collaborate with University of Puerto Rico-Mayagüez professor Stephen Hughes at Yabucoa, Puerto Rico landslide monitoring station.
Animation of Sentinel-2 near-infrared (NIR) satellite images from July 19th, July 27th, and August 9th, 2024, showing August 7th landslide-generated tsunami effects. Increase in dark/black areas on the land on August 9th shows the extent of changes to the surface and vegetation from the tsunami.
Animation of Sentinel-2 near-infrared (NIR) satellite images from July 19th, July 27th, and August 9th, 2024, showing August 7th landslide-generated tsunami effects. Increase in dark/black areas on the land on August 9th shows the extent of changes to the surface and vegetation from the tsunami.
Map of upper and lower Pedersen Glacier lagoon showing the location of landslide initiation (yellow circle), approximate travel path to water (black dotted line with arrow), and preliminary estimates of tsunami runup height on land above the tide level at the time of the event.
Map of upper and lower Pedersen Glacier lagoon showing the location of landslide initiation (yellow circle), approximate travel path to water (black dotted line with arrow), and preliminary estimates of tsunami runup height on land above the tide level at the time of the event.
Thumbnail image of submitted "Meet the USGS Interns: Earthquakes Edition" video. See submission for more details.
Thumbnail image of submitted "Meet the USGS Interns: Earthquakes Edition" video. See submission for more details.
World map of expected annual disruption of copper refinery production, in metric tons, from potential seismic activity.
World map of expected annual disruption of copper refinery production, in metric tons, from potential seismic activity.
Text "Landslide Basics" on green background, infographic made for landslide basics page
Text "Landslide Basics" on green background, infographic made for landslide basics page
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.
KOTE GEN TRANBLEMANNTÈ
(Modèl risk tranblemanntè nan nivo nasyonal, 2023)
TRANBLEMANNTÈ NAN VIL NEW YORK
KOTE GEN TRANBLEMANNTÈ
(Modèl risk tranblemanntè nan nivo nasyonal, 2023)
TRANBLEMANNTÈ NAN VIL NEW YORK
地震发生区域
国家地震灾害模型，2023 年
纽约市的地震
您知道自己生活在“地震带”吗?这是真 的。纽约市等地过去曾发生过地震，将来 还会发生。如果您感到地面在震动，请确 保知道怎么做:趴下、掩护和稳住!
如果您感觉到地面在震动
趴下 掩护 稳住
规模最大的地震 - 纽约市 - 1884年8月10日 - 震级 5.2
地震发生区域
国家地震灾害模型，2023 年
纽约市的地震
您知道自己生活在“地震带”吗?这是真 的。纽约市等地过去曾发生过地震，将来 还会发生。如果您感到地面在震动，请确 保知道怎么做:趴下、掩护和稳住!
如果您感觉到地面在震动
趴下 掩护 稳住
规模最大的地震 - 纽约市 - 1884年8月10日 - 震级 5.2
TITLE: WHERE EARTHQUAKES OCCUR
MAP: National Seismic Hazard Model, 2023
HEADING: EARTHQUAKES IN NYC
TITLE: WHERE EARTHQUAKES OCCUR
MAP: National Seismic Hazard Model, 2023
HEADING: EARTHQUAKES IN NYC
LÀ OÙ LES SÉISMES SE PRODUISENT
Modèle de l’aléa sismique au niveau national, 2023
LES SÉISMES DANS LA VILLE DE NEW YORK
LÀ OÙ LES SÉISMES SE PRODUISENT
Modèle de l’aléa sismique au niveau national, 2023
LES SÉISMES DANS LA VILLE DE NEW YORK
This hazard map is a simplified 2% in 50-year probability of exceedance map for fixed VS30 760 m/s.
This hazard map is a simplified 2% in 50-year probability of exceedance map for fixed VS30 760 m/s.
From the 2003 NSHM by Mueller et al., 2010, the distribution of spectral acceleration (SA in %g) is shown for Puerto Rico and the U.S. Virgin Islands.
From the 2003 NSHM by Mueller et al., 2010, the distribution of spectral acceleration (SA in %g) is shown for Puerto Rico and the U.S. Virgin Islands.
A landslide monitoring station within the footprint of the 2016 Fish Fire in the San Gabriel Mountains of southern California. The station collects surface and subsurface data to monitor and detect changes in local hillslope hydrologic conditions.
A landslide monitoring station within the footprint of the 2016 Fish Fire in the San Gabriel Mountains of southern California. The station collects surface and subsurface data to monitor and detect changes in local hillslope hydrologic conditions.
The USGS Postfire Landslide Monitoring Station “Maria Ygnacio” is located within the Los Padres National Forest in the Santa Ynez Mountains of southern California. The site consists of surface and subsurface instrumentation that is monitoring the hillslope shown in this image.
The USGS Postfire Landslide Monitoring Station “Maria Ygnacio” is located within the Los Padres National Forest in the Santa Ynez Mountains of southern California. The site consists of surface and subsurface instrumentation that is monitoring the hillslope shown in this image.
University of Puerto Rico, Mayagüez and USGS scientists working on the Añasco monitoring station
University of Puerto Rico, Mayagüez and USGS scientists working on the Añasco monitoring station
Situated on a vegetated hillslope surrounded by cattle, is the Añasco monitoring station. A fence was built around the station to keep the grazing cattle from damaging any of the station components
Situated on a vegetated hillslope surrounded by cattle, is the Añasco monitoring station. A fence was built around the station to keep the grazing cattle from damaging any of the station components
Stephen Hughes, Gabriel Colón, and Ednet López stand on hillslope next to completed landslide monitoring station at Añasco, Puerto Rico
Stephen Hughes, Gabriel Colón, and Ednet López stand on hillslope next to completed landslide monitoring station at Añasco, Puerto Rico
Figure showing photos of minor and major postfire hydrologic response following storms in coastal California, from the study "Postfire hydrologic response along the Central California (USA) coast: insights for the emergency assessment of postfire debris-flow hazards".
Figure showing photos of minor and major postfire hydrologic response following storms in coastal California, from the study "Postfire hydrologic response along the Central California (USA) coast: insights for the emergency assessment of postfire debris-flow hazards".
Charlie Miles performing field work on the Alaskan Gyre at the Prince William Sound, Alaska
Charlie Miles performing field work on the Alaskan Gyre at the Prince William Sound, Alaska