Earthquake Catalog Workshop

Welcome to the Earthquake Catalog Workshop! This repository contains materials for a workshop on earthquake catalogs, including data, scripts, and documentation.

Contributors: Eric Beauce, Gabrielle Tepp, Clara Yoon, Ellen Yu, Weiqiang Zhu (alphabetical order)

Introductions

• Instructor intros
• Workshop goals/schedule
• What is an earthquake catalog? Different end-users and scientific motivations
• Why earthquake catalogs and how to choose the right one?

Regional Seismic Networks: Official Catalogs and Data Access (Ellen & Gabrielle)

• How regional catalogs are made and what they include
• SCSN catalog and special datasets
• ComCat (ANSS)
• NSF Sage (Earthscope)
• Accessing waveform data and metadata - AWS Open Dataset vs FDSN Webservices
• Citing network data & catalogs

Break

Building Custom Catalogs with Modern Tools

• Catalog Workflow + Machine Learning (Weiqiang & Clara)
• Template Matching (Eric)

Break

Evaluating Catalog Quality

• Anomaly detection
• Visualization tools
• Magnitude of completeness
• Quality control
• Tips & tricks

Conclusions

• Discuss limitations and reasons for using different types of catalogs
• When to use STA/LTA vs. deep-learning vs. template-matching vs relocated
• Combining different methods depending on application
• How does a user choose among the many options for deep-learning pickers, event associators, event location methods?

Discussion, Questions, & Tutorial Help

If you have any questions about the workshop materials or encounter any issues, please open an issue on our GitHub repository.

@misc{earthquake_catalog_workshop_2025,
  author = {Beauce, Eric and Tepp, Gabrielle and Yoon, Clara and Yu, Ellen and Zhu, Weiqiang},
  title = {Building a High Resolution Earthquake Catalog from Raw Waveforms: A Step-by-Step Guide},
  year = {2025},
  url = {https://ai4eps.github.io/Earthquake_Catalog_Workshop/},
  note = {Seismological Society of America (SSA) Annual Meeting, 2025}
}