The focus is the place inside Earth's crust where an earthquake originates. The point on the Earth's surface directly above the focus is the epicenter. When energy is released at the focus, seismic waves travel outward from that point in all directions.
<span>Since a P-wave can travel anywhere between 1.5 and 8 kilometers per second, then it is all a matter of multiply those numbers by how many seconds there are in total in 9 minutes and 20 seconds. If that is the case, then a P-wave will travel at least 840 kilometers in the said time frame.</span>
This geological process is called Mantle drag .
What is Mantle drag?
According to the first driving mechanism, known as mantle drag, plate motion is the consequence of viscous drag brought on by the lateral motion of the tops of mantle convection cells in the asthenosphere on the base of the lithosphere . Convection cells would thus be mostly absent beneath continents, rising beneath oceanic ridges, and dropping beneath trenches. This idea states that the oceanic lithosphere would be in a state of tension at the ocean ridges and compression at the trenches.
Due to their connection to accretive and destructive plate boundaries, the horizontal widths of the convection cells causing mantle drag would be projected to be around half an ocean's breadth, or 3000 km.
to learn more about mantle drag click:
brainly.com/question/3989845
#SPJ4
<em>Which statement best summarizes the evolution of the Supreme Court's</em>
<em>interpretation of free speech during the 20th century?</em>
<u><em>A. Over time, the Supreme Court became less likely to allow restrictions on free speech.</em></u>
<u><em></em></u>
<u><em>~Hope this answers your question!~</em></u>
