Jäljitegevused

Jäljitegevused, also known as aftershocks, are seismic events that occur after a larger earthquake, known as the mainshock. They are typically less powerful than the mainshock and can continue for days, weeks, or even months after the initial event. Aftershocks occur due to the readjustment of the Earth's crust following the mainshock, which can cause additional stress to be released in the form of smaller earthquakes.

The frequency and magnitude of aftershocks decrease over time, following a pattern known as the Omori law. This law states that the rate of aftershocks decreases with time, with the number of aftershocks decreasing proportionally to the inverse of time. However, it is important to note that while aftershocks are generally less powerful than the mainshock, they can still cause significant damage and pose a risk to structures and infrastructure.

Aftershocks can also trigger other seismic events, such as landslides and tsunamis, which can further exacerbate the impact of the mainshock. Therefore, it is crucial for communities affected by earthquakes to remain vigilant and prepared for potential aftershocks and their associated hazards. This includes having emergency plans in place, securing heavy furniture and other objects that could fall during shaking, and staying informed about the latest developments in the aftermath of the mainshock.