Select Quiet Site
4 hoursChoose pier on bedrock away from traffic and HVAC vibrations.
Beginner2-5 days
Seismograph Station Setup
Learn seismograph station setup from scratch with a clear step-by-step workflow, recommended tools, safety guidelines, and expert tips.
citizen seismologistsschool labs
Workflow
Install and Align Sensor
3 hoursLevel seismometer and align north mark to true north.
Configure Data Acquisition
2 hoursSet ≥100 Hz sampling with GPS time sync.
Conduct Noise Survey
1 dayRecord 24 h background; plot PSD vs NLNM.
Checklist
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Planning
Preparation
Safety
Execution
Reference Materials
IRIS StandardsStandard
Publish location, depth, response, and true-north orientation metadata.
NyquistFormula
f_nyquist = sample_rate / 2 — aliasing above Nyquist corrupts analysis.
Sampling RatesTable
Typical settings.
| Rate | Use | Max f |
|---|---|---|
| 50 Hz | Regional | 25 Hz |
| 100 Hz | Local | 50 Hz |
| 200 Hz | Strong motion | 100 Hz |
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
- Team lift for heavy sensors.
- Secure shelves against earthquake fallback.