Seismic monitoring in and around national parks is used for earthquake, tectonic, and geological research, earthquake hazard assessment, and public education. With only a small effort, one can investigate the earthquake history and hazards of a national park and surrounding areas. In both active and inactive areas, an educational seismograph can be used to monitor local, regional, and global earthquake activity. An operating seismograph is always an attraction for park visitors. More extensive seismic monitoring and analysis of earthquake effects, tectonic activity and earthquake risk requires significant effort, costs and expertise, and may require installation of a seismograph network and other instrumentation.