Resonant Frequency, Schumann Resonance, Earth's Vibration Poster Earth's natural vibration is increasing and it's making people feel foggy, anxious, and tired. The planet's vibration, known as the Schumann resonance, is believed to affect sensitive individuals, lowering mood, impairing Principle of resonance phenomena. a Tuning fork's resonance; b Schumann Download Scientific Diagram Amazon.com: 93.96Hz Schumann Weighted Tuning Fork with World Grid Engram Carry Bag and Striker Sound Healing Instruments and Biofield Harmonization Chakra Alignment Vibration Therapy Tools Engram Silver : Musical Instruments The Schumann Resonance is earth's natural electromagnetic heartbeat, created by lightning in the space between the surface and the ionosphere. Its main frequency, the 1st order, is 7.83 Hz, followed by the Amazon.com: 93.96Hz Schumann Weighted Tuning Fork with Earth Star Engram Carry Bag and Striker Sound Healing Instruments and Biofield Harmonization Chakra Alignment Vibration Therapy Tools Pink : Musical Instruments