Energy of selected events of 1985/86 west-bohemian earthquake swarm

Summary The energy of seismic waves (i.e. seismic energy) of 60 selected events of the 1985/86 West-Bohemian swarm is determined by time integrating records. The energies lie in the interval 30 × 10³ – 0·4 × 10⁹ J for events of magnitude 0·74 – 2·59. Problems of the resultant reliability and estimation of errors are discussed. A study of the relations of seismic energy versus magnitude, of the scalar seismic moment and the source radius has shown that the processed data fit theoretical formulas in general, but individual events display scatters as large as an order of magnitude. Rather small values of the stress-drop ( = 0·01 – 0·10 MPa) are observed.Dedicated to the Memory of Professor Karel P