About EarthWave
EarthWave builds tools for tracking and understanding Earth's natural electromagnetic environment. Our Schumann resonance tracker provides near-real-time visibility into one of the planet's most fundamental electromagnetic phenomena.
This web dashboard delivers hourly-updated readings of the Schumann resonance fundamental frequency, signal amplitude, and Q-factor alongside ELF spectrograms that refresh every two minutes. An AI-powered insight layer analyzes each day's spectrogram record to surface meaningful patterns.
Data Methodology
Spectrogram images are sourced from ground-based ELF sensors that continuously record the 0–40 Hz electromagnetic band. The sensors capture the natural waveguide resonances formed between Earth's conducting surface and the ionosphere.
Readings for frequency (F1), amplitude (Amp F1), and quality factor (Q F1) are extracted hourly from the raw sensor data. All timestamps use Coordinated Universal Time (UTC). Spectrograms refresh every two minutes to reflect near-real-time conditions.
About Schumann Resonances
Key numbers and background science.
Background
Schumann resonances are peaks in the extremely low frequency (ELF) electromagnetic spectrum, generated by the approximately 2,000 thunderstorms continuously active around the globe. Lightning discharges excite the natural waveguide formed between the conducting Earth surface and the ionosphere.
Predicted by physicist Winfried Otto Schumann in 1952 and experimentally confirmed in 1954, these resonances serve as a tool for studying global lightning activity, ionospheric variability, solar-terrestrial coupling, and as a climate change indicator. This dashboard provides near-real-time spectrogram data refreshing every two minutes.
Harmonic Modes Reference
| Mode | Freq | Name | Note |
|---|---|---|---|
| 1st | 7.83 Hz | Fundamental | Strongest and most stable mode |
| 2nd | 14.3 Hz | Second harmonic | Sensitive to day-night asymmetry |
| 3rd | 20.8 Hz | Third harmonic | Weakens during solar flares |
| 4th | 27.3 Hz | Fourth harmonic | Broad, harder to resolve |
| 5th | 33.8 Hz | Fifth harmonic | Weakest tracked mode |
Mobile App
Take Schumann resonance monitoring with you — get push alerts for elevated activity and access historical data on iOS and Android.