Természetes és mesterséges eredetű események elkülönítése szeizmikus és infrahang
adatok együttes...(128152) Támogató: NKFIH
We present our analysis of the detections from the Piszkés-tető, Hungary infrasound
array that has been operational since May 2017. We introduce an automatic search method
to associate infrasound detections with a preliminary list of explosions detected
by the seismic network. Once infrasound detections are associated with seismic events,
we relocate the events using both the seismic arrival time and infrasound azimuth
observations. We validate our methodology on ground truth events, i.e., explosions
confirmed by the mine operators. We demonstrate that seismo-acoustic locations are
able to identify the source of explosions even for closely spaced quarries. The discriminative
power of the infrasound azimuth is strongest at near-field distances, where local
and regional seismic discrimination methods have the most difficulties.
