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KOTE GEN TRANBLEMANNTÈ

(Modèl risk tranblemanntè nan nivo nasyonal, 2023)

TRANBLEMANNTÈ NAN VIL NEW YORK

NATIONAL SEISMIC HAZARD MODEL

The National Seismic Hazard Model stands as a testament to scientific innovation in the service of public safety. This congressionally requested update provides an essential tool to many stakeholders by showing where large earthquakes are most likely to occur, allowing for better mitigation and preparedness in those areas.

Social media graphic used for promoting the 2023 update to the National Seismic Hazard Model | U.S. Geological Survey (usgs.gov)

The “Did you feel it?” ZIP Map for the 1994 Northrdige earthquake. Found at this link: https://earthquake.usgs.gov/earthquakes/eventpage/ci3144585/dyfi/zip

Screenshot from the "Did you feel it?" felt report form from the Northridge earthquake. Found at this link: https://earthquake.usgs.gov/earthquakes/eventpage/ci3144585/tellus

Annual number of earthquakes with a magnitude of 3.0 or larger in the central and eastern United States, 1973–2024. The long-term rate of approximately 25 earthquakes per year increased sharply starting around 2009.

Scientists at the USGS are installing sensors in Wellfleet MA, part of the Cape Cod National Seashore to evaluate the long-term and short-term chemical and geomorphic changes within wetlands. 

Scientists at the USGS are installing sensors in Wellfleet MA, part of the Cape Cod National Seashore to evaluate the long-term and short-term chemical and geomorphic changes within wetlands. 

As sea-level rise accelerates, vegetation transitions are increasingly observed and USGS scientists are busy assessing those changes. Shoreline at the Cape Cod National Seashore in Wellfleet, MA.

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.

Dave LeBlanc serves in the Emergency Management Team as the Continuity of Operations Coordinator to enhance the Survey’s commitment to mission resilience.

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

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 new eruption at the summit of Kīlauea volcano on September 10, 2023. After about an hour of increased seismic activity and uplift, HVO scientists observed the start of the eruption at approximately 3:15 p.m. HST.

The new eruption at the summit of Kīlauea volcano on September 10, 2023. After about an hour of increased seismic activity and uplift, HVO scientists observed the start of the eruption at approximately 3:15 p.m. HST.

The new eruption at the summit of Kīlauea volcano on September 10, 2023. After about an hour of increased seismic activity and uplift, HVO scientists observed the start of the eruption at approximately 3:15 p.m. HST.

The new eruption at the summit of Kīlauea volcano on September 10, 2023. After about an hour of increased seismic activity and uplift, HVO scientists observed the start of the eruption at approximately 3:15 p.m. HST.

The new eruption at the summit of Kīlauea volcano on September 10, 2023. After about an hour of increased seismic activity and uplift, HVO scientists observed the start of the eruption at approximately 3:15 p.m. HST.

An eruption at the summit of Kīlauea volcano began on September 10, 2023. The main fountain, which HVO geologists estimate is approximately 50 meters tall, is on the eastern margin of Halemaʻumaʻu crater. As of approximately 4:30 p.m.

From the Uēkahuna overlook, the new eruption at the summit of Kīlauea is visible. The farthest east fissure is near the to margin of downdropped block that formed during the 2018 summit collapse. The base of the main fissure, which is farthest west (right on the image), is approximately 70 meters wide.

The new eruption at the summit of Kīlauea volcano on September 10, 2023. After about an hour of increased seismic activity and uplift, HVO scientists observed the start of the eruption at approximately 3:15 p.m. HST.