孤立性地震是地震序列的一种特殊类型，主要特点是无前震和余震少且小。
这次地震属于孤立型地震，震前有中短期异常。
This earthquake belongs to isolated type. There were short-term anomalies before the earthquake.
非走滑型地震情况则复杂得多，既有视应力很高的孤立型地震，也有视应力很低的多震型地震。
For non-strike-slip type earthquake, the situation is more complicated, and there are single-shock earthquake of high apparent stress, and also multiple-shock earthquake of low apparent stress.
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