Figure 1. Behavior of precursory parameters in a 100
100-km cell centered at
the December 5, 1997,
M=7.9, Kronotski (Kamchatka) earthquake. Each ordinate
axis plots a given parameter normalized to the rms error of the determination of
its long-term value: (a) density of seismogenic faults
Ksf;
(b) recurrence plot slope; (c) number of earthquakes per year; (d) released seismic
energy
E2/3. The arrows indicate time moments of strong
earthquakes that occurred in the given cell.