Regional Phases: Oceanic and Continental Propagation
Abstract
In this report we present the results of several investigations dealing with two diverse topics: We compare ambient noise levels on islands with those present at and beneath the seafloor to determine the value of permanent seafloor seismic stations. We compare signal power spectral levels expected from earthquakes with ambient noise levels at these locations to determine a lower magnitude limit of detectable events. We study the nature of propagation of seismic waves through the continental and oceanic crusts. We investigate the influence the regular repetition of features in seismograms, introduced at the source and/or during propagation by layer resonance, has on the spectrum of the recorded coda.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 04, 1989
- Accession Number
- ADA213306
Entities
People
- John A. Orcutt
Organizations
- Scripps Institution of Oceanography