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Earth Keeps Pulsating Every 26 Seconds. No One Knows Why.
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Earth Keeps Pulsating Every 26 Seconds. No One Knows Why.

Maybe you can solve this strange seismic mystery.

Science & Tech

Earth makes a tiny seismic rumble every 26 seconds.

Is the pulsating caused by ocean waves, volcanoes, or something else completely? Theories abound.

The "microseism" doesn't seem to be hurting anything and has not been a high priority.

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Why is Earth pulsating every 26 seconds, and why can’t scientists explain it after 60 years? This is an enigma wrapped in a periodically predictable mystery motion. It could be a harmonic phenomenon, a regular seismic chirp caused by the sun’s energy, or a beacon drawing scientists to its source to begin a treasure hunt.

In the early 1960s, a geologist named Jack Oliver first documented the pulse, also known as a "microseism," according to Discover. Oliver, who worked at Columbia University's Lamont-Doherty Geological Observatory at the time, heard the noise, but didn't have the advanced instruments seismologists have now at his disposal.