Vibration Meter – Seismic Tool

Measure vibration, motion, and seismic activity using your phone’s sensors.

Turn your smartphone into a professional-grade vibration analyzer and seismic monitor with Vibration Meter – Seismic & Motion Analyzer.

Using your device's accelerometer and motion sensors, measure vibrations, detect seismic activity, analyze frequency spectra, and monitor structural health — all in real time.

⚙️ Key Features

📈 Real-Time Graphs
Live waveform charts for X, Y, Z axes and total magnitude. Adjustable graph window from 5 to 60 seconds for short bursts or long trends.

🎚️ Measurement Modes & Units
Switch between RAW, RMS, and STABILIZED modes. Display readings in m/s², g-force, Gal, or mm/s² — ideal for any workflow.

🌍 Seismic Intensity Scales
Readings mapped to Richter and Modified Mercalli Intensity (MMI) scales with real-time status labels from "Not Felt" to "Major".

📊 FFT Spectrum Analyzer
Decompose vibrations into their frequency components. Identify dominant frequencies, visualize the full 0–25 Hz spectrum, and isolate seismic, building, or machine-frequency bands.

🏗️ Structural Health Evaluation
Run a 30-second automated test that analyzes peak acceleration, RMS, dominant frequency, and estimated resonance — gives a pass/caution/fail verdict for structural monitoring.

🌐 Live Earthquake Map
Browse real-time global earthquake data from the USGS feed. Filter by magnitude, switch between past hour / day / week, and open the full event report in one tap.

🔊 Sound Meter
Built-in decibel meter measures ambient noise alongside vibration. Monitor acoustic and mechanical disturbance simultaneously.

🗂️ Session History & Reports
Save measurement sessions with asset name, notes, and GPS location. View per-session max, mean, MMI level, and duration. Export any session or batch as a CSV or professional PDF report.

🔔 Smart Alerts & Auto-Save
Set a vibration threshold. Get an instant push notification on breach. Optionally auto-save the session so no event is ever missed — even when you're not watching the screen.

🎯 Sensor Fusion & Spike Filter
Gyroscope data is blended with the accelerometer for more stable readings. An automatic spike filter rejects electrical noise and sensor glitches.

🌗 Dark & Light Themes
Adaptive interface with 13 language options to suit any environment.

🎯 Use Cases

✓ Earthquake and tremor detection
✓ Machine and motor vibration testing
✓ Structural integrity assessments
✓ Vehicle and road surface monitoring
✓ Construction impact monitoring
✓ Educational experiments and sensor demos

🔬 Why Vibration Meter?
One app covers everything — spectrum analysis, seismic scales, live earthquake feed, structural testing, sound measurement, session history, PDF reports, and continuous background monitoring. Professional-grade tools in your pocket, completely free.

⚠️ This app uses the device's internal sensors and is intended for educational and reference purposes. For safety-critical measurements, use certified instruments.