The worldwide or local distribution of earthquakes in space and time; a general term for the number of earthquakes in a unit of time.
The number, size and location of earthquakes in a region during a specific time
The tendency for earthquakes to occur.
The occurrence of earthquakes in space and time.
The study of the worldwide distribution of earthquakes over time and the probability of an earthquake occurring in a specific location.
Pertaining to earthquakes.
relative frequency and distribution of earthquakes.
The geographic and historical distribution of earthquakes.
the frequency and distribution of earthquakes. Also used in describing the relative susceptibility of a given site or place to earthquake occurences.
Earth vibrations and shaking due to earthquake activity, as well as those artificially induced.
Describes the likelihood of an area being subject to earthquakes.
any earthquake activity.
Seismic activity; earthquakes and other shaking (tremors).