Hydroacoustic catalog along the Aleutian arc in 2022-2023

Here we present the hydroacoustic catalog built up using an array of 4 hydrophones, mooored in the Bering Sea, ~100 km north of the Adak Island. We identify two main types of signals: long duration (~40 s) T-phase and short duration (~10 s) impulsive signals. Both of them are further claissified in 4 types individually. In T-phase category, we obtain isolated T-phases, composite PST phases where seismic P and S phases arrives prior to T, composite PT phases where no S signal observed, and paired T-phases where two T-phases occur consecutively after P and S. In impulsive phase category, we obtain isolated signals (impulsive I), series of signals after a strong signal (impulsive II), two signals together (doublets) and weak amplitude signals (uncategorized). 

In this depository, datafiles include station co-ordinates and catalog files for each of the signal types (total 8). In each catalog file, first column is origin time of signal, second column is signal type, third column is back-azimuth of the signal measured from hydrophone array, columns four-seven include received lelvel (acoustic magnitude) recorded on each of the hydrophone.