Pick P and S Arrivals
45 minPick arrivals to 0.1 s on three or more stations.
Field context
This workflow is part of 1 niche field
Learn epicenter triangulation from scratch with a clear step-by-step workflow, recommended tools, safety guidelines, and expert tips.
Pick arrivals to 0.1 s on three or more stations.
Larger Δt means greater epicentral distance.
Convert Δt to distance; circle each station on map.
Trial depths minimizing residual misfit.
Local Δ ≈ (S−P seconds) × 8 km for average crust — calibrate regionally.
Double-check all measurements before committing — small errors compound across multiple steps.
Verify uniformity across all pieces — inconsistency is the most common quality issue.
Ensure adequate ventilation when working with chemicals, adhesives, or heated materials.