Seismicity
Jump to navigation
Jump to search
This article provides insufficient context for those unfamiliar with the subject.(December 2016) |
Seismicity is a measure encompassing earthquake occurrences, mechanisms, and magnitude at a given geographical location.[1] As such, it summarizes a region's seismic activity. The term was coined by Beno Gutenberg and Charles Francis Richter in 1941. Seismicity is studied by geophysicists.
Calculation of seismicity
Seismicity is quantitatively computed. Generally, the region under study is divided in equally sized areas defined by latitude and longitude, and the Earth's interior is divided into various depth intervals on account of Earth's layering: Up to 50 km (31 mi) depth, 50–300 km (31–186 mi), and > 300 km (190 mi).[2]
The usual formula to calculate seismicity is:
where
- : is the energy of a single seismic event (i.e., earthquake);
- : interval of latitude;
- : interval of longitude
- : interval of the hypocenter;
- : interval of the time of the seismic event.
- The result is seismicity as energy per cubic unit.
See also
References
- ^ Stacey, Frank (2008). Physics of the Earth (4 ed.). Cambridge, UK: CUP.[page needed]
- ^ Schneider, Götz (2004). Erdbeben. Eine Einführung für Geowissenschaftler und Bauingenieure (in German). Hamburg, Germany: Springer.[page needed]
Categories:
- Wikipedia articles needing page number citations from April 2021
- CS1 German-language sources (de)
- Articles with short description
- Short description is different from Wikidata
- Wikipedia articles needing context from December 2016
- All Wikipedia articles needing context
- All pages needing cleanup
- Articles with GND identifiers
- Articles with NKC identifiers
- Seismology measurement
- 1940s neologisms
- All stub articles
- Geophysics stubs
- Standards and measurement stubs
- Seismology stubs