Five Earthquake Catalogs for the 2017 Changdao Swarm, Eastern China

From 14 February to 31 May 2017, this dataset contains five earthquake catalogs generated for the 2017 Changdao offshore earthquake swarm in eastern China. It supports the study 'Evaluating Deep-Learning-Based Earthquake Detection in a Sparse Coastal Network' (Wang et al., 2026). The catalogs include matched-filter, deep-learning-based, double-difference relocation, and routine network catalogs.

Use Cases

• Benchmarking deep-learning earthquake detection methods based on the LOC-FLOW catalog
• Comparing catalog completeness and accuracy using the matched-filter and routine network catalogs
• Analyzing earthquake swarm relocation and clustering based on the double-difference catalogs

Strengths

• Includes five distinct, complementary earthquake catalogs for the same event swarm
• Covers a specific 3.5-month period from 14 February to 31 May 2017
• Contains a catalog from the authoritative China Earthquake Network Center (CENC)

Limitations

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

Provenance

Source

Generated in support of a study by Wang et al., 2026, Earth and Space Science.

Collection Method

Includes catalogs generated via matched-filter techniques, the LOC-FLOW deep-learning method, double-difference relocation, and routine network reporting.

Time Range

14 February to 31 May 2017

Freshness

Last updated 2026-04-16 02:29:50; freshness should be verified

Geography

Changdao offshore region, eastern China