Abstract
Infrasound is widely used as a geophysical monitoring tool to detect and locate events of interest. Direct infrasound from atmospheric pressure disturbances can propagate long distances, allowing for reliable source localization. Infrasound can also be generated by underground sources which generally produce seismic waves in the solid Earth. Atmospheric pressures are coupled with ground motions induced by underground explosions or earthquakes and propagate in the atmosphere as infrasound. This ground-coupled infrasound can be used to locate the sources of atmospheric pressure disturbances and complement seismic observation to improve seismic source locations. It is well known that near-surface seismic sources are highly correlated with the infrasound source locations, but the correlation variance depending on source depths has not been explored extensively. In this study, we compare seismic and infrasound source locations of underground events detected by local and regional network in Utah, USA. Infrasound source locations are determined by back-azimuths and travel times on infrasound arrays and compared with seismic event catalogs. This systematic comparison for many seismic events will help us to understand statistical properties of seismic and acoustic source correlation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.