Study of regional seismicity and associated problems
- 1 April 1970
- journal article
- Published by Seismological Society of America (SSA) in Bulletin of the Seismological Society of America
- Vol. 60 (2) , 393-446
- https://doi.org/10.1785/bssa0600020393
Abstract
This paper constitutes a compilation of seismicity data available in the literature plus regional and worldwide data obtained from the USCGS Preliminary Determination of Epicenter (PDE) lists. Data are presented in the form of the recurrence relationship of log N versus magnitude, where N is either cumulative or incremental number of earthquakes, and magnitude is either mb or MS. Relative shapes of these recurrence curves as regards mb versus MS, large magnitude versus small magnitude, shallow focus versus deep focus, etc. are discussed. Conclusions on variability of seismicity with time and on worldwide level of seismic activity are included.Keywords
This publication has 6 references indexed in Scilit:
- World seismicity maps compiled from ESSA, Coast and Geodetic Survey, epicenter data, 1961-1967Bulletin of the Seismological Society of America, 1969
- A microearthquake swarm in 1965 near Mould Bay, N.W.T., CanadaBulletin of the Seismological Society of America, 1968
- Triggering of microearthquakes by earth tides, and other features of the Truckee, California, earthquake sequence of September, 1966Bulletin of the Seismological Society of America, 1968
- WORLDWIDE COLLECTION AND EVALUATION OF EARTHQUAKE DATAPublished by Defense Technical Information Center (DTIC) ,1967
- Magnitude determination at regional and near-regional distances in the United StatesBulletin of the Seismological Society of America, 1967
- Seismicity, tectonism, and surface faulting in the western United States during historic timeBulletin of the Seismological Society of America, 1966