Separation and location of microseism sources
Article first published online: 20 JUN 2013
©2013. American Geophysical Union. All Rights Reserved.
Geophysical Research Letters
Volume 40, Issue 12, pages 3118–3122, 28 June 2013
How to Cite
2013), Separation and location of microseism sources, Geophys. Res. Lett., 40, 3118–3122, doi:10.1002/grl.50566., , and (
- Issue published online: 18 JUL 2013
- Article first published online: 20 JUN 2013
- Accepted manuscript online: 18 MAY 2013 05:57AM EST
- Manuscript Accepted: 15 MAY 2013
- Manuscript Revised: 10 MAY 2013
- Manuscript Received: 19 MAR 2013
- Science Foundation Ireland. Grant Number: 10/IN.1/I3014
- source separation
 Microseisms are ground vibrations caused largely by ocean gravity waves. Multiple spatially separate noise sources may be coincidentally active. A method for source separation and individual wavefield retrieval of microseisms using a single pair of seismic stations is introduced, and a method of back azimuth estimation assuming Rayleigh-wave arrivals of microseisms is described. These methods are combined to separate and locate sources of microseisms in a synthetic model and then applied to field microseismic recordings from Ireland in the Northeast Atlantic. It is shown that source separation is an important step prior to location for both accurate microseism locations and microseisms wavefield studies.