The Mw7.0 Anchorage earthquake is most significant event since 1964 Mw9.2. Far away subduction zone trace, thus the seismogenic structure and failure plane are not clear and keep disputed. Based on published data, including faults, aftershock, focal mechanism solutions and source fault model and so on, we make comprehensive analysis and discussion. We think that this earthquake belongs to plate subduction event, without relationship with Castle Mountain fault and Border Ranges fault for seismogenic structure, only earthquake-controlling structure. Both faults are not responsible for the Anchorage earthquake. The actual seismogenic fault plane has a south-to-north trending and dips to east, which is corresponding to the nodal plane I.

中文翻译：

---

2018年11月30日在阿拉斯加的安克雷奇Mw7.0地震的地震构造

Mw7.0安克雷奇地震是1964年Mw9.2以来最重要的事件。俯冲带的痕迹很远，因此震源结构和破坏面不清楚，并引起争议。基于已发布的数据，包括故障，余震，震源机制解和源故障模型等，我们进行了全面的分析和讨论。我们认为该地震属于板块俯冲事件，与地震构造的Castle Mountain断裂和Border Ranges断裂无关，而仅属于地震控制构造。这两个断层都不对安克雷奇地震负责。实际的地震成因断裂面呈南北走向，向东倾斜，这对应于节点平面I。