Table 1. FAST input parameters.

These were used for detection in synthetic data (except the event detection threshold) and in 1 week of CCOB.EHN data.

FAST parameter	Value
Time series window length for spectrogram generation	200 samples (10 s)
Time series window lag for spectrogram generation	2 samples (0.1 s)
Spectral image window length	100 samples (10 s)
Spectral image window lag = fingerprint sampling period	10 samples (1 s)
Number of top k amplitude standardized Haar coefficients	800
LSH: number of hash functions per hash table r	5
LSH: number of hash tables b	100
Initial pair threshold: number v (fraction) of tables, pair in same bucket	4 (4/100 = 0.04)
Event detection threshold: number v (fraction) of tables, pair in same bucket	19 (19/100 = 0.19)
Similarity search: near-repeat exclusion parameter	5 samples (5 s)
Near-duplicate pair and event elimination time window	21 s
Autocorrelation and catalog comparison time window	19 s