Fault Lines In Usa Map
The map is based on the most recent usgs models for the conterminous u s.
Fault lines in usa map. Earthquakes today recent live maps exploratorium ez reading money matters. A fault trace or fault line is a place where the fault can be seen or mapped on the surface. The new madrid fault line has recorded over 4000 earthquakes of various scales over the last four decades. This map courtesy of the u s.
Geological survey usgs shows the major earthquake hazard areas within the united states based on fault lines. New madrid fault line. Information for a fault is either compiled from the usgs fault and fold database at the section scale or from individual fault segment data given to the usgs. The cascadia subduction zone pacific northwest.
The fact is most states are at risk of major earthquakes with 39 of the 50 states in moderate to high risk areas for seismic activity abc news reports. The few remaining native americans in the area spoke of the earth shaking and ocean rising to consume the land. Locally the hazard may be greater than shown because site geology may amplify ground motions. North american plate shakes harder.
Also referred to as the new madrid seismic zone this region is one of the most vulnerable region in the united states. The models are based on seismicity and fault slip rates and take into account the frequency of earthquakes of various magnitudes. For more information refer to the cooperators listed in the fault attributes or from this list of contributors. Some may be curious of the u s.
Fault lines with earthquakes in the news lately. A fault trace is also the line commonly plotted on geologic maps to represent a fault. There is an interactive map application to view the faults online and a seperate database search function. Do not show this splash screen again.
Fault attribute information is presented at the highest resolution available. Kml google earth type files and gis shape files are also available for download from the site. Map of active us fault lines in the usa by usgs this map courtesy of the u s. Geological survey usgs shows the major earthquake hazard areas within the united states based on fault lines.
The fact is most states are at risk of major earthquakes with 39 of the 50 states including new york and tennessee in moderate to high risk areas for seismic activity. An online map of united states quaternary faults faults that have been active in the last 1 6 million years is available via the quaternary fault and fold database. 2018 hawaii 1998 and alaska 2007. By the time lewis and clark arrived on the west coast in 1805 it had been 105 years since the cascadia subduction zone last ruptured sending a large portion of the pacific ocean roaring toward the coast.
Earthquakes in this region directly affect a range of states including illinois missouri tennessee indiana etc.