A research from scientists at Oregon State University shows that a severe earthquake can cause other quakes on the opposite side of the planet.
The study, published in 2 of August 2018 (see attached), utilizes 44 years of seismic data showing that earthquakes with a Mw 6.5 or more can trigger other seismic events of more than Mw 5.0. Until today, a large earthquake was considered to trigger smaller quakes called aftershocks. Aftershocks occur in the same area of the initial event, as the surrounding crust adjusts after the fault perturbation. However, researchers excluded such events from their investigation by using larger time windows. Therefore, they showed that in the 3 following days of a large earthquake, another independent quake was more likely to occur.
An earthquake possibly will provoke another temblor within 30 degrees of its antipode (the point opposite on the other side of globe). According to Robert O'Malley, a researcher in the OSU College of Agricultural Sciences, the mechanism of these incidents has not been fully understood yet. "The understanding of the mechanics of how one earthquake could initiate another while being widely separated in distance and time is still largely speculative. But irrespective of the specific mechanics involved, evidence shows that triggering does take place, followed by a period of quiescence and recharge."
Researchers used data from 1973 to 2016. They inserted a large earthquake which was suspected to trigger other seismic incidents into a 3-day window. Each case was accompanied by a control group of 5,355 3-day periods that didn't have the quake injection.
Source: Oregonstateuniversity.edu
It is widely known that earthquakes can trigger disastrous landslides but, what about the opposite?...
Scientists from Stanford University and Georgia Institute of Technology in the United States, intro...
According to a new study, smaller earthquakes have caused the strongest shaking incidents in the vi...
The landslide at the Bingham Canyon copper mine that occurred last April, near Salt Lake City in Uta...
According to a new study, published in Seismological Research Letters, the deep landslides that wer...
At least one person died after a M 7.0 earthquake hit southwestern Mexico on September 8, 2021. Th...
Researchers have tried for decades to determine whether there is a reliable precursor that can act...
A 5.7-magnitude earthquake struck near Istanbul, the largest city of Turkey with 15 million people....