Sketch focal mechanism solutions for the following faults. Next to each of the s

Question

Sketch focal mechanism solutions for the following faults. Next to each of the sketches, draw geological cross-sections illustrating the earthquake fault and the complimentary (auxilary) fault that would produce the same focal mechanism solution. Indicate strike and dip angles at your drawings.

a) Normal fault. Strike: N 30degrees W. Dip 55 degrees to S60degreesW (60 degrees towards the southwest).

b) Reversal fault. N75degreesE. Dip: 55 degrees towards the south.

c) Right-lateral vertical strike-slip fault. Strike N45degreesE. Dip: 90 degrees.

Indicate at which plate boundary such types of fault usually occur.

Explanation / Answer

Pretty sure youre needing to draw a beach ball diagram.

but for what boundaries those occur are

a.) converging boundary

b.) Divergent boundary

c.) Transforming fault

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