This module focuses on practical techniques in seismology that allow us to assess geohazards and the impacts of fluid injection and extraction, related to, for example, resource extraction and storage, and to increase our understanding of tectonic processes. The module comprises a series of lectures and exercises in which students are provided with datasets that illustrate different applications of seismology and analyse each of these datasets in a series of practical sessions. Applications will include volcano seismicity, tectonic (earthquake) seismicity and induced seismicity related to, for example, fluid injection and extraction. The practical sessions will be supported by lectures providing the scientific background required, focusing on active Earth processes.