SafekipediaRemotely triggered earthquakes happen when a big earthquake far away causes smaller earthquakes in places not right next to it. This can be hard to notice because the smaller quakes might seem random and not clearly linked to the big one.
Scientists study how these distant quakes can affect areas that are already close to shaking on their own. Sometimes, the stress from a far-off earthquake changes the balance just enough to make the ground move.
A famous example happened after the magnitude 7.3 Landers earthquake in California in 1992. Many more quakes happened all over the state after that. Another big example was after the 2004 Indian Ocean earthquake, when smaller quakes were felt as far away as Alaska. Studies using discrete element modelling show how even small changes can affect large areas, like how digging in a valley can cause a big landslide.
This article is a child-friendly adaptation of the Wikipedia article on Remotely triggered earthquakes, available under CC BY-SA 4.0.
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