CRESCENT Earthquake Catalog Repository and Viewer

The Cascadia Region Earthquake Science Center (CRESCENT) Earthquake Catalog Repository and Earthquake Catalog Viewer is a community resource for the collection, documentation, and dissemination of peer-reviewed earthquake catalogs within the Cascadia Subduction Zone and surrounding regions. The repository is designed to support reproducible earthquake science by providing standardized access to curated catalogs derived using a wide range of detection, association, and location methodologies.

This effort is part of the broader mission of CRESCENT to advance understanding of earthquake science in the Pacific Northwest through open science, community model development, and shared cyberinfrastructure.

Motivation¶

Earthquake catalogs are foundational datasets for studies of seismicity, fault mechanics, slow slip, tremor, earthquake triggering, and seismic hazard. Over the past decade, advances in data-driven methods—-including machine learning for phase identification, picking, and association, template matching, and increasingly dense seismic instrumentation such as nodal arrays and distributed acoustic sensing—-have enabled the development of high-resolution, regionally focused earthquake catalogs that complement permanent monitoring network catalogs.

However, these catalogs are often:

• Distributed across individual publications and/or repositories,

• Produced using heterogeneous formats, conventions, and metadata,

• Difficult to discover, compare, or reuse.

The CRESCENT Earthquake Catalog Repository addresses these challenges by providing:

• A centralized, openly accessible collection of peer-reviewed catalogs,

• Consistent documentation describing how each catalog was generated, and

• A visualization tool that permits catalog comparison in 2D and 3D, interaction, and download in standardized formats.

Scope¶

We welcome both catalogs of conventional earthquakes and those that contain non-traditional seismicity, including low-frequency earthquakes, tremor, or volcano seismicity. We also welcome catalogs generated with diverse aquisition and processing techniques such as machine learning phase detection and picking, distributed acoustic sensing, nodal seismometers, etc.

The only requirements are that any earthquake catalogs submitted for inclusion into the repository:

• Are primarily located within the CRESCENT geographic footprint (Cascadia), and

• Have been described in peer-reviewed publications with an associated DOI.

Repository Structure¶

Each catalog included in the repository consists of:

1. A downloadable catalog file (CSV or GeoJSON), and

2. A corresponding JupyterBook page describing the catalog, publication DOI, methods, and scientific context.

Catalog description pages follow a standardized Markdown format to ensure clarity and consistency while allowing contributors to highlight the unique aspects of their work.

Visualization¶

Catalogs hosted in this repository are integrated into the CRESCENT Earthquake Catalog Viewer , enabling interactive exploration of seismicity patterns in space and time. The viewer is intended as a discovery and comparison tool and does not replace citation of the original peer-reviewed publications.

Metadata¶

For a description of the catalog fields and other metadata please review the Catalog Metadata section.

Project Contacts¶

The CRESCENT Earthquake Catalog Repository is developed and maintained by the CRESCENT cyberinfrastructure team in collaboration with the broader Cascadia earthquake science community. Individual catalogs remain the intellectual property of their original authors.

Amanda M. Thomas
amthom@ucdavis.edu
Department of Earth and Planetary Sciences, University of California, Davis

William Marfo
wmarfo@ucdavis.edu
Cascadia Region Earthquake Science Center
Department of Earth and Planetary Sciences, University of California, Davis

Loïc Bachelot
lbachelo@uoregon.edu
Cascadia Region Earthquake Science Center
Department of Earth Sciences, University of Oregon