A fault is a fracture or zone of fractures between two blocks of rock.  Faults allow the blocks to move relative to each other.  This movement may occur rapidly, in the form of an earthquake - or may occur slowly, in the form of creep.  Faults may range...
A seismic zone could be one of three things:A region on a map in which a common level of seismic design is required. This concept is becoming obsolete.An area of seismicity probably sharing a common cause. Example: "The New Madrid Seismic Zone."A region...
PAGER stands for the Prompt Assessment of Global Earthquakes for Response.  It is an automated system that takes in seismic data from remote sensors in order to rapidly estimate earthquake shaking and the scope and impact of earthquakes around the world...
For information on tsunami science and hazard mitigation: NOAA Tsunami webpage Tsunami Fact Sheet from FEMA Tsunami Hazard Mitigation from the University of Washington Other organizations in tsunami monitoring and research include: British Columbia...
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Currently, PAGER results are not directly available to the public through e-mail. However, users can sign up for earthquake alerts through the USGS Earthquake Notification Service (ENS). This service lets you sign up for alerts from custom geographic...
The earliest reference we have to unusual animal behavior prior to a significant earthquake is from Greece in 373 BC. Rats, weasels, snakes, and centipedes reportedly left their homes and headed for safety several days before a destructive earthquake....
The results of past calculations are stored in a table near the bottom of the page. Subsequent calculations will be appended to this table until you reload or leave the page. Global Vs30 questions and comments
Currently, there are no methods available to do this. Evidence from some case histories suggests that the magnitude of the largest earthquake tends to increase as the total volume of injected wastewater increases. Injection pressure may also be a factor...