Abstract

An attempt has been made to understand the spectral characteristics of the Microseism in relevance to the Microtremors. The three-component passive seismic data from the northern part of Cambay basin have been used in the present study. The Microseism or the ocean wave peaks have been observed with variation in time period ranging between 3-8 seconds. The present study deals with the investigation of the low frequency passive seismic data from five stations from the oil field of Cambay basin. The microseism band (0.05- 0.5) Hz and microtremor band (2-4) Hz have been studied. There seems to be a no correlation between Microseism or the ocean wave peaks (0.12-0.28) Hz and spectral peak at around 3 Hz in microtremor band associated with known hydrocarbon reserves.