取得了该区最大水平主应力、最小水平主应力量值及最大水平主应力方向。
The maximum and the minimum horizontal stresses and the direction of the maximum horizontal stress are obtained.
应力改变触发地震的机制，主要是由于最小水平主应力的减小，或两个水平主应力同时减小。
Decreasing of the minimal horizontal principal stress, or more, may he responsible for a trigger of the earthquake associated with a change in stresses.
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