#earthquake

• Anaseism — A seismological phenomenon consisting of the initial upward or push movement of the ground at the reception point (at the seismic station) upon the arrival of the primary seismic wave (P-wave), indicating a compressional motion away from the hypocenter. This structural dynamic, opposite to kataseism, is essential for researchers in determining the focal mechanism of an earthquake and for understanding the type of tectonic fault activated.
• Earthquake-resistant — Designed, constructed, or structurally consolidated to withstand seismic movements, ground vibrations, and earthquakes, minimizing the risk of collapse or severe damage. It applies to design codes, load-bearing structures, buildings, bridges, or technological materials equipped with damping systems, base isolation, or flexible reinforcements capable of absorbing inertial forces.
• Aseismic — Not seismic; a geographical region or zone characterized by the absence of earthquakes or by the occurrence of tectonic movements of negligible intensity. In structural engineering, the term is sometimes used (as a variant for antiseismic) to describe elements designed to withstand seismic shocks, though in geology it exclusively indicates a lack of seismic activity.
• Aseismicity — The structural property or characteristic of a geographical region or tectonic zone of not experiencing significant earthquakes or seismic activity over long periods of time; stable absence of telluric movements. In civil engineering, the term can describe the quality of a site or the behavior of a stable ground that minimizes tectonic risks for built structures.