A recent study published in Nature Communications has shed light on the mysterious seismic pulse that rang the Earth like a bell for 9 straight days in 2023. The pulse, initially thought to be a seiche, has been confirmed to be caused by a landslide in Greenland, which triggered a standing wave in the Dickson Fjord.
The Earth’s pulsing, a phenomenon where the planet rings like a bell, has been a subject of fascination for scientists and researchers. In 2023, a mysterious seismic pulse was detected, which was initially thought to be a seiche, a standing wave in a body of water. However, the cause of this pulse remained a mystery until recently.
A team of researchers, led by Thomas Monahan of Oxford University, used data from NASA’s Surface Water Ocean Topography (SWOT) satellite to study the phenomenon. The SWOT satellite, which is capable of high-resolution measurements, was able to detect the changes in the height of waves in the Dickson Fjord, which is located in Greenland.
The researchers found that the seismic pulse was caused by a landslide, which triggered a seiche in the fjord. The seiche, which is a standing wave, was able to ring the Earth like a bell, producing the mysterious seismic pulse. The study, which was published in Nature Communications, provides new insights into the Earth’s internal dynamics and the mechanisms that drive seismic activity.
The Science Behind the Seiche
A seiche is a standing wave that can occur in a body of water, such as a lake or a fjord. It is caused by the movement of water from one end of the enclosure to the other, resulting in a wave that oscillates back and forth. In the case of the Dickson Fjord, the landslide triggered a seiche, which was able to ring the Earth like a bell.
The SWOT satellite was able to detect the changes in the height of waves in the fjord, which provided valuable data for the researchers. The satellite’s high-resolution measurements allowed the researchers to create maps of the fjord and model its behavior during different times after the landslide.
Conclusion
The study of the Earth’s pulsing has provided new insights into the planet’s internal dynamics and the mechanisms that drive seismic activity. The discovery of the seiche in the Dickson Fjord has shed light on the mysterious seismic pulse that rang the Earth like a bell for 9 straight days in 2023. As researchers continue to study the Earth’s internal dynamics, they may uncover more secrets about the planet’s behavior and the mechanisms that drive its activity.
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