Pick P Arrivals
45 minIdentify first P onset; note up/down polarity.
Field context
This workflow is part of 1 niche field
Learn p wave first motion from scratch with a clear step-by-step workflow, recommended tools, safety guidelines, and expert tips.
Identify first P onset; note up/down polarity.
Classify compression (+) or dilatation (−) per station.
Map polarities on lower hemisphere beachball.
Classify normal, reverse, or strike-slip faulting.
Upward first motion on vertical = compression at source (standard convention).
Always do a test run on scrap material before working on the final piece.
Invest time in understanding fundamentals before attempting advanced techniques. A strong foundation ensures better long-term results.
Start with basic techniques and standard practices. Increase complexity only as your skills and confidence develop.