Folgeimpulsen

Folgeimpulse, 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. The frequency and magnitude of aftershocks decrease over time, following a pattern known as the Omori law, which states that the rate of aftershocks decreases exponentially with time.

Aftershocks occur due to the readjustment of the Earth's crust following the mainshock. This process can cause additional stress on nearby faults, leading to smaller earthquakes. The distribution of aftershocks can provide valuable information about the fault geometry and the stress field in the affected region.

Aftershocks can pose significant risks, as they can cause additional damage to already weakened structures and infrastructure. They can also trigger landslides and other secondary hazards. Therefore, it is important to remain vigilant and follow the advice of local authorities during the aftershock sequence.

The study of aftershocks is crucial for understanding earthquake processes and improving seismic hazard assessment. By analyzing the characteristics of aftershocks, seismologists can gain insights into the behavior of faults and the dynamics of the Earth's crust. This information can help in developing more accurate models for predicting future earthquakes and mitigating their impacts.