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If an earthquake occurs in a region, why the tremors is felt in a little far away regions while there are no tremors felt in between the two regions. One would expect that  the ripples created by the earthquake should travel in all directions but this apparently does not seem to happen. What is the scientific explanation for this?

EQ waves spreads in all direction, due to anisotropic behavior/conditions within the earth's interior and alluvium these waves might get attenuated locally resulting in feeble tremors in comparison to other areas due to the same event.
To my belief there cannot be an contiguous area (between two regions of yours) without any tremors.


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