The global Internet can detect earthquakes better with a new algorithm

The field of the field in the Journal of Journal of the Swiss Alps. The left is the ice and right rivers is their field camp, where the optical fiber investigator was in a tent. Credit: Dr. Thomas Hudson

The researchers say the early detection of earthquakes can be improved significantly by taking advantage of the Internet with a leading new algorithm.

The optical cables used in cable TV, phone systems and global web matrix now have the ability to help measure seismic grumbling thanks to modern technological developments, but harnessing this achievement has proven a problem.

A new paper published today in the International Geophysical Journal seeks to face these challenges by air conditioning of a simple algorithm based on physics to include optical fiber data that can be used along with traditional earthquake measurements.

This “exciting” progress could not be integrated into the early warning systems of the current earthquake, but may also help discover the seismic activity associated with the explosion of volcanoes, ground thermal wells and ice ice.

“The ability to convert optical fiber cables into thousands of seismic sensors. A scientist in Eth Zurich,” said Dr. Thomas Hudson, a senior research.

“Here, we tend to combine the benefit of thousands of sensors and a simple physics -based approach to discover earthquakes using any optical fiber cable, anywhere.

“In an exciting way, our way can combine optical and traditional earthquake measurements, allowing the compatibility of optical fiber sensor in early sedative systems.”

Site of the back migration of one seismic source in place and time. Credit: International Geophysical Journal (2025). Doi: 10.1093/GJI/GGAE459

Disries (DAS) is an emerging technique that uses optical fiber cables to detect audio signals and vibrations. It can be used to monitor a variety of things, including pipelines, railways or surface.

Therefore, it has the ability to convert optical fiber networks – which carries data very quickly – in seismic activity measurements that can be used to detect earthquakes.

This is confusing because optical fiber networks are everywhere in populated areas and even across the oceans, which provides more detailed and effective seismic networks than those currently.

However, converting these capabilities into a more difficult reality.

The real world's fiber network engineering is often complex-and seismologists have no control of engineering. Moreover, optical fiber cables are often located in noisy urban environments, making it difficult to distinguish between earthquake activity and other sources in the way in which traditional earthquake standards work.

Another challenge is that DAS measurements are only sensitive to pressure in the axis of the fiber, while earthquake measuring devices measure 3D earth movement. This makes optical cables the surface fibers is much more sensitive to the Sugomic Sirs (which is transmitted only through solid materials and is the second waves that reach during an earthquake) than the fastest P waves (which is transmitted through fluids and solid material .

One of the solutions is to combine information from both traditional earthquake measuring devices and optical fiber cables to detect earthquakes, but this is not easy due to the sensitivity of different tools and measurement units.

Another problem is that converting optical fiber cable into thousands of sensors generates a lot of data. Actual processing of this data is necessary to monitor earthquakes, so effective data processing algorithms are required.

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The new algorithm works by taking the energy that was observed in receptions – either the fiber -optical cable channels and/or earthquake measuring devices – and the migration of that energy again through the place and time to find a coherent peak in the energy corresponding to a potential earthquake.

This approach was also found to be effective in the discovery of earthquakes in volcanoes, ground thermal wells and ice ice.

Dr. Hudson said: “The main power of this physics -based approach is that it works well even in loud environments, because the noise is generally less cohesive than the earthquake signal.” “It can also be applied outside the box to any network of fiber.”

He added: “Although we do not claim that we have analyzed the problem of the size of the large data completely, we offer practical ways to deal with this, and our algorithm is operated in the actual time of the tested data groups. The broader seismology community can immediately benefit.” .

More information: TS Hudson et al, towards the extensively applicable earthquake detection of the networks of the meter and metal and fiber meter, and the international geophysical magazine (2025). Doi: 10.1093/GJI/GGAE459

It was presented by the Royal Astronomical Society

Quote: The global internet can discover earthquakes better with a new algorithm (2025, February 3). It was recovered on February 3, 2025 from https://phys.org/news/2025-02-global-internet-grid-earthquakes-algorithm .html

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