Lower Detection Threshold
ongoingReduce triggers; staff for 10× normal rate after M6+.
Advanceddays to weeks
Aftershock Monitoring Guide
Learn aftershock monitoring from scratch with a clear step-by-step workflow, recommended tools, safety guidelines, and expert tips.
network seismologistshazard teams
Workflow
Update Real-Time Catalog
ongoingHourly preliminary; daily reviewed unified magnitudes.
Fit Omori Decay
2 hours dailyModel n(t) = K/(t+c)^p for sequence forecast.
Communicate Decaying Hazard
1 hour dailyReport M≥5 probability to emergency managers.
Checklist
0 / 5 completedLoading your checklist…
Planning
Preparation
Safety
Execution
Reference Materials
Omori LawStandard
n(t) = K/(c+t)^p; typical p ≈ 1.0–1.2.
Båth's LawFormula
Largest aftershock ~1.2 units below mainshock on average.
Omori p ValuesTable
By setting.
| Setting | p | Duration |
|---|---|---|
| Crustal | 1.1 | Months |
| Subduction | 0.9 | Years |
| Geothermal | 1.3 | Weeks |
Label in Field
Label samples immediately with date, GPS coordinates, and habitat notes.
Chain of Custody
Maintain sample integrity from collection through lab analysis.
Wildlife Safety
Know venomous species and territorial animals in your study area.
Safety Notes
- Forecasts are probabilistic only.
- Maintain redundant power during deployment.