By including low frequency force-balance accelerometers with 2 Hz and/or 4.5 Hz geophone sensors in combination with 15 Hz geophones, moveable and re-deployable SuperCable™ is GPS time synchronized and features ability to detect over 6 orders of event magnitudes. Variable spacing of geophones allows detection of small events with sensors situated close to reservoir. Larger events are detected by sensors situated closer to surface.