The Earth Is Pulsating Every 26 Seconds, and Seismologists don't Agree Why ?

Every 26 seconds, the Earth shakes just enough to be detected by seismometers, but researchers don't agree on what causes it.
A strange pulse was first documented in the early 1960s by Jack Oliver, and was strongest during storms. Later, Gary Holcomb would look more closely at the pulse, and would also discover that it was coming from somewhere in the southern or equatorial Atlantic Ocean.
In 2005, Greg Bensen was working with seismic data at the University of Colorado, Boulder, when he noticed a strong signal coming from somewhere far off. The team examined the blips from every possible angle, and eventually found a single source in the Gulf of Guinea.

Though this particular pulse is intriguing, the fact that there's seismic activity during a quiet time is old news. It's caused by the sun heating the Earth, which generates winds and storms and ocean currents and waves.

A graduate student narrowed down the source of the 26-second pulse to a part of the Gulf of Guinea called the Bight of Bonny, and made a case for why waves hitting the coast were likely the cause. But not everyone was fully convinced, and another team proposed that volcanoes were the cause.
Nearly 60 years after the pulse was first observed, no one has managed to figure out the cause of this phenomenon. However, it may be up to future generations of students to truly unlock these great enigmas.