The present contribution deals with distribution laws of the earthquake's magnitude, the number of earthquakes (by modelling the generation process as a Poisson process) and the time interval between two successive earthquakes.

The most important conclusion arrived at is that in the area of the Vrancea focus the distribution of the magnitudes is lognormal and brings forth a frequency-magnitude relation of the form

not a linear one.

A correlation between the magnitude and the time interval of two successive earthquakes is considered and a series of seismic indices are introduced.

This content is PDF only. Please click on the PDF icon to access.

First Page Preview

First page of Statistical analysis of seismic data on earthquakes in the area of the Vrancea focus
You do not have access to this content, please speak to your institutional administrator if you feel you should have access.