ANALIZA UNDELOR CODA PENTRU CUTREMURE LOCALE

C. RADU, OLIVIA BAZACLIU, VICTORIA OANCEA
Centrul de Fizica Pamantului si Seismologie, Bucuresti – Magurele

THE ANALYSIS OF CODA WAVES FOR LOCAL EARTHQUAKES
(Abstract)

The analysis of the coda characteristics of some intermediate earthquakes produced in the Vrancea region pointed out the stability of the form of coda envelope in a certain frequency band, irrespective of epicenter, focal depth and the other source parameters.
Using the values of A100 (which characterize the coda envelope it can frequency band), the spectral characteristic H100 and the local magnitudes ML determined for Cheia station (MLR), two linear relations: log A100(ML) and log H100(ML) were obtained.