Question

question 31
what does a long delay between the arrival of a p - wave and a s - wave at a seismic station indicate?
the earthquake only produced p - waves.
the seismic station was located a long distance from the earthquake.
the location of the earthquake was very deep in the crust.
there was a large displacement of land during the earthquake.

Explanation:

P - waves (primary waves) are faster than S - waves (secondary waves). The time difference between their arrivals at a seismic station is related to the distance from the earthquake epicenter. A longer delay means the seismic station is farther from the earthquake. If the earthquake only produced P - waves, there would be no S - wave arrival. The depth of the earthquake focus (not just crust depth in a simple sense as presented in the option) affects wave behavior in a more complex way than just the P - S wave delay. The displacement of land during the earthquake is more related to surface effects and magnitude - related aspects rather than the P - S wave arrival time difference.

Answer:

The seismic station was located a long distance from the earthquake.