Relocated Eagle Ford Earthquake Catalog for South-Central Texas (2017-2025)

A relocated earthquake catalog covering seismicity in the Eagle Ford Shale region from February 2017 to May 2025. The catalog was developed by Salles et al. (2026) using the NonLinLoc algorithm and a new regional 1-D velocity model (EF1D) to improve earthquake locations in an area affected by oil and gas activity.

Use Cases

• Analyzing spatiotemporal patterns of induced seismicity based on the relocated earthquake locations.
• Correlating seismic events with oil and gas activity timelines mentioned in the description.
• Validating or improving regional velocity models based on the EF1D model methodology.
• Assessing seismic hazard and risk in the Eagle Ford Shale region.

Strengths

• Covers a specific 8+ year time range from February 2017 to May 2025.
• Locations were improved using a new regional 1-D velocity model (EF1D) developed for southern Texas.
• Focuses on a region of known induced seismicity linked to oil and gas operations.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Texas Data Repository Harvested Dataverse

Collection Method

Earthquakes relocated using the NonLinLoc probabilistic algorithm and a new regional 1-D velocity model (EF1D) within the Texas Seismological Network (TexNet) workflow.

Time Range

February 2017 to May 2025

Freshness

Last updated 2026-04-27 04:36:54; freshness should be verified.

Geography

Eagle Ford Shale region, south-central Texas