Amploc: A Complete Python Workflow for Amplitude-Based Locations

Abstract

Amplitude-based locations are well suited for characterizing long-duration seismic sources that may migrate with time, such as debris flows, avalanches, rockfall, and volcanic tremor. Although amplitude-based location methods have existed for decades, their adoption in real-time monitoring systems remains limited. We present a complete Python-based workflow that includes station corrections, amplitude-based location algorithms, and interactive review tools that are appropriate for real-time use. The algorithms themselves are not new; however, Amploc integrates several previously published methods into a unified operational framework. The workflow also introduces a browser-based graphical interface that allows users to review real-time location results using formats familiar to many observatories. By integrating calibration, location algorithms, and visualization tools, Amploc lowers the barrier to operational use of amplitude-based locations and improves characterization of phenomena that inform hazard assessments such as long-period earthquakes, volcanic tremor, and debris flows.