Automatic Tsunami Hazard Assessment System: “Tsunami Observer”

The current prototype of a fully automatic earthquake tsunami hazard assessment system, “Tsunami Observer”, is described. transition the system to active phase operation occurs when information about strong (Mw ≥ 6.0) received. In first stage, vector field coseismic displacements Earth’s crust calculated by using Okada formulas. calculations, use made data on coordinates, seismic moment, focal mechanism, and depth earthquake, as well empirical patterns. second initial elevation water surface at tsunami’s focus determined with bottom distribution ocean depths, earthquake’s potential energy calculated. third intensity estimated Soloviev–Imamura scale in accordance magnitude relationship that obtained result statistical analysis historical events. final if exceeds critical value 109 J, numerical simulation performed, which allows determination predominant directions wave propagation estimation runup height nearest coast. this work, over last 3 years are presented.