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Abstract

Summary

Over the past decade, various authors have observed a dominance of dip-slip or strike-slip P-wave first motion patterns and the juxtaposition of both within the same microseismic event cloud (e.g. ; and references therein). The steeper, and sometimes near vertical, nodal plane of these dip-slip first motion patterns is often found to strike approximately parallel to the direction of maximum horizontal stress ( Fig. 1 ). Aligned strike-slip first motion patterns show a similar behavior: steeply dipping nodal planes and one of them striking parallel to the direction of maximum horizontal stress ( Fig. 2 ). Moreover, showed that both dip-slip and strike-slip events can concentrate in discrete depth intervals. One type of mechanism tends to dominate in a given reservoir, presumably reflecting different regional stress states. demonstrate that events in neighboring clusters can have opposing P and S wave polarities …

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/content/papers/10.3997/2214-4609.201800070
2018-03-26
2024-04-24

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References

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The Enigma Of Dip-Slip And Aligned Strike-Slip Events Within The Same Event Cloud
Conference Proceedings 2018, 1 (2018); https://doi.org/10.3997/2214-4609.201800070
/content/papers/10.3997/2214-4609.201800070
/content/papers/10.3997/2214-4609.201800070
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