Earthquakes have a key mechanism and we seem to have found it.

Earthquakes have interested us for many years. We are still learning about how these seismic shifts happen. Now geologists believe they have managed to discover an important framework that causes massive earthquakes on Earth.

What is the cause of the Megathrust earthquake?

Megatrust earthquakes occur in abrasion regions. These are the locations where tectonic plates rub against each other. They are usually found in the Pacific and Indian Oceans. These earthquakes can cause a massive tsunami. According to a recent study, progressive, slow development far below the abrasion zone could be crucial for analyzing how to trigger megatrust seismic tremors. It is possible that they will improve anticipatory models to make them easier to predict later.

Slip slows do not occur in all abrasion zones. However, they are changing the way pressure develops underground. It is significant that they move the energy into the megatrustor shaking in various ways and do not actually follow the development of the plates themselves. Geoscientist Kevin Furlong of Pennsylvania State University said: “Generally, in the case of an earthquake, the movement goes in the opposite direction in which the plates move, aggregating that lack of slippage. In the case of shaking the collector, the flow of development descends directly towards gravity as opposed to the movement of the plate. ”

The study will prove crucial in the future

The research team has been using high-resolution GPS station data to analyze movement along the Cascadia subduction zone for some time. In 1700 a strong earthquake struck Cascadia. It had a magnitude of 9 on the Richter scale. Since then, SSEs have occurred deep below the abrasion zone and are moving at a slow pace. Although they occur at great depths, their movement affects the timing and occurrence of megatrust tremors. In a period of 2-3 years, they can lead to something much more catastrophic.

Map of the Cascadia subduction zone. (PSU news)

What the study found was “extremely absurd.” The research team had similar feelings, but they believed it would be crucial to know about the earthquakes yet to occur. It is possible, for example, that part of the pressure from moving the plate in the subduction zones is delivered by the collectors deep underground. Also, if we already know in which direction future earthquakes will occur, we can plan them better. The unpredictability of earthquakes makes them extremely dangerous. As a result, any information about them is very crucial. The research was published in Geochemistry, Geophysics, Geosystems.

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