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Earthquake location by arrival times

Earthquake location from interphase delays

{c}
{title2=$\Delta t=t_S-t_P$}

The delay between corresponding <S wave> and arrivals. For a common uniform path of length $r$, $\Delta t=r(1/V_s-1/V_p)$, cancelling <earthquake origin time>. Matched phase identification and an appropriate <velocity model> are needed to infer distance.

S–P time

Past exam of the year 2 of the earth sciences (geology) course of the University of Oxford / 2024 / Paper 3 / 3 / e / ii / Solution

Past exam of the year 2 of the earth sciences (geology) course of the University of Oxford / 2024 / Paper 3 / 3 / e / i / Solution

S–P time ( $Δ t = t_{S} - t_{P}$ )

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S–P time (Δt=tS​−tP​)

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S–P time ( $Δ t = t_{S} - t_{P}$ )

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