Watch the seismic waves from the M6.2 earthquake in Japan roll across the US and Canada in this Ground Motion Visualization from the IRIS DMC. The USArray Ground Motion Visualization (GMV) 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 and normalized to

Watch the waves from the M8.2 Alaska earthquake 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, ju

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

We break down the essential actions to take during an earthquake — what to do the moment it strikes and how to stay safe in different environments, from high-rises to homes. We also analyze a real hospital evacuation to uncover valuable lessons in preparedness and survival. | Full Spectrum Survival