- journal_title：Geophysics
- Contributor：G-Akis Tselentis ; Nikolaos Martakis ; Paraskevas Paraskevopoulos ; Athanasios Lois ; Efthimios Sokos
- Publisher：Society of Exploration Geophysicists
- Date：2012-11-01
- Format：text/html
- Language：en
- Identifier：10.1190/geo2011-0301.1
- journal_abbrev：Geophysics
- issn：0016-8033
- volume：77
- issue：6
- firstpage：KS43
- section：Passive Seismic Methods
Small-magnitude seismic events, either natural or induced microearthquakes, have increasingly been used in exploration seismology with applications ranging from hydrocarbon and geothermal reservoir exploration to high-resolution passive seismic tomography surveys. We developed an automated methodology for processing and analyzing continuously recorded, single-channel seismic data. This method comprised a chi-squared-based statistical test for microseismic event detection and denoising filtering in the S-transform domain based on the Otsu thresholding method. An automatic P-phase picker based on higher order statistics criteria was used. The method was used with data from a surface seismic station. The performance of the method was tested and evaluated on synthetic and real data from a microseismic network used in a high-resolution PST survey and revealed a high level of consistency.