Earth's heartbeat on
Wednesday, October 21, 2026
Earth’s pulse is showing intermittent bursts across the frequency range, while the overall activity is trending downward. The 7.83 Hz band remains prominent, with a persistent area of stronger activity around 12–13 Hz; this is an active but easing pattern.
Solar wind is at a typical 386 km/s, and the southward Bz of −5 nT could support some added variability. However, the Kp forecast stays below 4, so conditions are expected to remain generally stable over the next 24–72 hours, with activity likely to ease rather than build significantly.
Sleep assessment requires the Kp index for that night. Geomagnetic data was not captured for this date — we do not estimate without source measurements.
Pick the symptoms you noticed that day — we'll show how they line up with what the Earth was doing.
of your symptoms align with this day's activity
Correlation is not causation. This is for self-reflection, not medical advice. If you have persistent concerns, talk to a doctor.
Take a mindful pause outdoors, focusing on steady breathing and grounding, and keep your day’s pace gentle.
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