Presentation | T43E: The Cascadia Megathrust and Beyond: From Fundamental Scientific Processes to Societal Resilience II Poster
Poster
T43E-0197: The 2019-2023 Enhanced Earthquake Catalog: the Strategy to Achieve the Most Reliable Hypocenter for the Seismotectonics of the Mendocino Triple Junction
We aim to establishan enhanced earthquake catalog for the MTJ region, using the fast-pacing advancement of the machine-learning-based approaches for event detection and association between 2019 and 2023. To achieve the most reliable hypocenter location, we begin with a classical simultaneous inversion of the velocity model and earthquake locations while identifying and removing outlier picks. Nonetheless, as ML-based methods generate a vast volume of phase picks, the traditional workflow becomes time consuming. To address this, we design a relocation workflow that maintains a balance between accuracy and time efficiency by incorporating different location algorithms.
