Why Earth's inner core<span> has speed trap for </span>seismic waves<span>. </span>Earth<span> has multiple layers: the crust, the mantle, the liquid </span>outer core<span> and the </span>solid inner core<span>. Something is not quite right inside the </span>Earth's core<span>. When </span>seismic waves<span> from earthquakes ripple through its </span>solid<span> center, they hit a speed bump.</span>
The earth solid inner core does not affect the seismic waves, it helps to transmit all types of waves which is generated by the earthquakes. It is the only primary waves that are being passed through all mediums, the secondary waves do not pass through the medium and it gets reflected. The seismic waves pass faster through the inner core.
