Schumann Live — SOS-70
Live Schumann Resonance Tracking — Tomsk Graph
Short answer
The global electromagnetic waves that form between Earth's surface and the ionosphere — the Schumann resonances — are tracked live here. The base frequency is ~7.83 Hz; the spectrogram below shows the last 72 hours (UTC) measured by the Space Observing System (SOS-70) station. The brighter the color, the stronger the activity in that frequency band.
7.83 Hz
First mode
72 hours
UTC
0–40 Hz
scale
SOS-70
Tomsk line
Schumann Resonance live
LIVE DATA
Coverage: 72 hours · UTC axisScale: 0–40 HzThe graph auto-refreshes every 5 minutes; the source is checked at most every 10 minutes.
01 — RESONANCE BANDS
Five modes, one base frequency
The Schumann resonance is not a single frequency but a family of modes arranged in near-harmonic ratios. The values below are physical constants — in the graph they sit exactly at these points on the vertical axis.
- 7.83 Hz
MODE 1
First mode — “Earth's fundamental vibration”
The strongest and most cited band. It is sustained by the global average of lightning activity and wavers naturally by ±0.1–0.5 Hz during the day.
- 14.3 Hz
MODE 2
Second mode
Roughly 1.83× the first mode. Its amplitude is usually lower and becomes clearer across day–night transitions.
- 20.8 Hz
MODE 3
Third mode
A mid band that stands out when tropical thunderstorm clusters intensify.
- 27.3 Hz
MODE 4
Fourth mode
A weaker band that appears as a thin horizontal line on the graph.
- 33.8 Hz
MODE 5
Fifth mode
The top of the spectrum — the band most sensitive to solar-driven ionosphere changes.
02 — READING GUIDE
How do you read the graph?
Know the axes
The horizontal axis is UTC time covering 72 hours; the vertical axis is frequency (0–40 Hz). For Türkiye time, add +3 to UTC.
Locate the bands
The brightest horizontal line near 7.83 Hz is the first mode; sibling bands extend at 14.3 / 20.8 / 27.3 / 33.8 Hz.
Read the color
Deep blue means quiet, green–yellow moderate activity, red–white a sudden surge. Bright vertical stripes are typically powerful lightning clusters.
03 — ARCHIVE
Previous versions
Every moment the graph changes is archived by our server. Changes usually happen a few times a day; the newest versions are listed below.
The archive is still forming. The first versions will be listed here within a few hours.
DATA SOURCE
This page caches and serves the publicly available spectrogram of the Space Observing System (SOS-70) station. The frequency bands are physical constants; amplitude and the time axis are the station's current measurements. CopyPromt does not produce the data — it merely makes it accessible.
Space Observing System (SOS-70)Legal information
This page is an independent information service with no official affiliation with SOS-70. Data is provided for general information only, 'as is', and should not be used to make decisions about health, earthquakes or any other matter.
04 — FREQUENTLY ASKED QUESTIONS
Frequently asked questions
What is the Schumann resonance?
A series of electromagnetic waves forming between Earth's surface and the ionosphere, sustained by the continuous excitation of global lightning activity. Winfried Otto Schumann predicted it theoretically in 1952; it was measured in the 1960s. Its base mode is about 7.83 Hz.
What is the Schumann resonance today, in Hz?
The base frequency is still ~7.83 Hz today — that is a fixed physical property. Natural wavering of about ±0.1–0.5 Hz occurs during the day. In the live graph above, the bright horizontal band at 7–8 Hz is the first mode.
What do the colors on the graph mean?
The color scale represents amplitude (signal strength): deep blue is low, green–yellow moderate, red–white high activity. The vertical axis shows frequency (Hz) and the horizontal axis time (UTC).
Why do the bands sometimes intensify?
Global lightning activity (especially over tropical Africa, Asia and America), solar-driven ionosphere changes and day–night transitions continuously alter amplitude. Bright vertical stripes along the graph are usually powerful thunderstorm clusters passing near the station.
How do I read it in my local time?
The graph's time axis is UTC. Add your local offset: e.g. 12:00 UTC corresponds to 15:00 in Türkiye (UTC+3).
Is the Schumann resonance used for earthquake prediction?
No. No repeatable scientific relationship between Schumann resonances and earthquakes has been shown that could serve as prediction. Sudden amplitude spikes are typically caused by lightning and ionosphere dynamics; claims to the contrary are speculative.
Does it affect human health?
The Schumann resonance is a natural, extremely weak electromagnetic background. There is no proven physiological effect in either a healing or harmful direction. This page is for information only; it is not medical advice.
Why does the graph sometimes look empty or dark?
The coverage is 72 hours, and the right edge of the graph shows the region data has not yet reached — it appears dark. Station maintenance or data-flow interruptions can also create temporary gaps. If the status bar says 'Source delayed', the last known data is being shown.
How often is the data updated?
Our server checks the source spectrogram at most every 10 minutes; every moment the graph changes is archived, and the page auto-refreshes every 5 minutes. The change rate depends on the station and is usually a few times a day.
Can't find your fix here?
Browse all guides or type the error code in search. New guides are added every week.