• DTW significantly improves differential travel-time measurements compared to WCC, especially for earthquake pairs with large magnitude differences.
• DTW reduces biases caused by unequal first pulse durations, leading to more accurate relative earthquake locations.
• DTW demonstrates superior resilience to noise in seismic data, ensuring reliable performance in real-world conditions.
• The study recommends DTW as a robust alternative to WCC for precise seismic phase alignment and relocation.