Figure 1 (IMAGE) Tohoku University Caption Scientists observed distinct patterns of different seismic waves. P-waves and S-waves are characterized by linear and planar motions, respectively. Others exhibit random motion, forming circular shapes. Analyzing the unique shapes of particle motions can accurately identify the incoming seismic waves. Credit Nagata et al. Usage Restrictions Reporters may use freely these materials in news coverage with appropriate credit information. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.