abstract

In this paper the S wave method of focal mechanism determination is extended to include the ScS wave. By the establishment of the quantitative relationship between the directions of vibration of the S and the ScS, ScS wave data can be reduced to a form of S wave data usable for focal mechanism determinations.

The new extension has been checked by reobtaining focal mechanism solutions for four heartquakes using ScS wave data. Results were consistent with previous solutions by the S wave method or P wave method.

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