With seismic tomography, scientists map out large regions where seismic waves travel slower or faster than average to develop images of individual slices through Earth's interior. Seismic waves travel faster through cold, stiff materials, like a subducting plate, and slower through warmer materials, like hot rock rising to the surface. These models—with areas where seismic waves travel more quickly in blue, and slower areas in red—allow scientists to infer structures like sinking tectonic plates

Seismic simulation helps researchers predict structural resilience and protect historical buildings from future earthquake damage. https://www.mts.com/en/articles/civil-engineering/mgu-seismic/?utm_source=facebook&utm_medium=social&utm_campaign=mgu-seismic-feb-22&utm_content=article | MTS Systems Corporation

Watch the waves from the M6.1 earthquake in Alaska roll across seismic stations in North America. This animation, called a Ground Motion Visualization (GMV), shows the motion of the ground as detected on seismometers across North America - each dot is a seismic station and when the ground moves up it turns red and when it moves down it turns blue. Waves generated by an earthquake travel around and through the earth, but they get smaller (attenuate) as they move away from the earthquake location,