Ground motion visualization for Mw 5.8 MONTANA earthquake The USArray Ground Motion Visualization (GMV) is a video-based IRIS DMS product that illustrates how seismic waves travel away from an earthquake location by depicting the normalized recorded wave amplitudes at each seismometer location using colored symbols. The color of each symbol depicts the amplitude of the vertical ground motion, as detected by the station’s seismometer (for TA stations this represents velocity of ground movement) a

VOLCANO SEISMICITY Volcano seismicity refers to the earthquakes and ground vibrations generated by volcanic activity. These quakes occur when magma rises through fractures, gas pressures build, or rock around a magma chamber breaks under stress. Unlike tectonic earthquakes, volcanic earthquakes are usually smaller in magnitude but are key warning signs of an impending eruption. By studying the patterns, depth, and frequency of volcanic tremors, scientists can forecast eruptions and protect nearb

GPS is a helpful way to monitor ground deformation for volcano forecasting. Ground deformation—caused by movement of magma through cracks and faults—can be measured earlier than other indicators, like seismic activity, which does not occur until a strain threshold is reached. Ground inflation is often observed prior to eruption as the magma has risen to the surface and is pressurized. Learn about more ways we monitor volcanoes with geophysics ➡️ https://loom.ly/d6Hpq7U | EarthScope Consortium