How Can the Exact Distance to an Earthquake Be Determined

question 83

Multiple Choice

How can the exact distance to an earthquake be determined if you only have a single seismic station to record it?

• A) You dig up your seismograph and take it to a destitute seismologist and offer to trade the instrument for the answer to your question!
• B) by measuring the duration of the surface wave train
• C) by measuring the difference between the P and S arrival times and using a travel time curve for arrival versus distance
• D) by measuring the P- wave arrival time and its intensity and using a formula

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