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An active fault is a fault that is likely to become the source of another earthquake sometime in the future. Geologists commonly consider faults to be active if there has been movement observed or evidence of seismic activity during the last 10,000 years.
An active fault is a fault that is likely to become the source of another earthquake sometime in the future. Geologists commonly consider faults to be active if there has been movement observed or evidence of seismic activity during the last 10,000 years.
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An active fault is a fault that is likely to become the source of another earthquake sometime in the future. Faults are active if there has been movement seen or evidence of seismic activity during the last 10,000 years. [1] Active faulting is considered to be a geologic hazard.
The GEM Global Active Faults project is compiling a global dataset of active faults (link here) for seismic hazard assessment as well as research, education and general interest. While this is a work in progress, we've got a lot of the world covered already.
The New Madrid Seismic Zone (NMSZ), sometimes called the New Madrid Fault Line, is a major seismic zone and a prolific source of intraplate earthquakes (earthquakes within a tectonic plate) in the Southern and Midwestern United States, stretching to the southwest from New Madrid, Missouri.
Ground shaking is the most powerful predictor of damage from an earthquake. The U.S. Geological Survey (USGS) National Seismic Hazard Map shows the strength of ground shaking that has a 1 in 50 chance of being exceeded in a particular place in the lower 48 states over a period of 50 years.
