Could an electromagnetic shield be used to stop a tsunami?

Short answer, Not anytime soon. Consider the energy involved. Estimates for the energy of the 2004 Indian Ocean tsunami range from 1-4 Quadrillion J (see Ghasemi, S. "Study of Tsunamis by Dimensional Analysis." Engineering 3.09 (2011): 905.). read more

Because of the above limitations of passive shielding, an alternative used with static or low-frequency fields is active shielding; using a field created by electromagnets to cancel the ambient field within a volume. Solenoids and Helmholtz coils are types of coils that can be used for this purpose. read more

Cloaking technology may be one step closer to reality, and researches say it might be used to shield buildings and oil rigs from the devastating effects of earthquakes and tsunamis. read more