Nearly every type of slip behavior of which megathrusts are known to be capable of has been observed within a narrow ~75‐km‐wide strip of the Sunda megathrust—the Banyak Islands subsegment. The diverse list of recorded slip events starts with the great 1861 M_W ~ 8.5 earthquake and includes the 1907 M_W ~ 8.2 shallow tsunami earthquake, the 1966–1981 slow slip event, the great 2005 M_W 8.6 Nias‐Simeulue earthquake and associated afterslip, many small (M < 6) to moderate (6 ≤ M < 7) earthquakes, and the large 6 April 2010 M_W 7.8 Banyak Islands earthquake. In this paper we map out the spatial and temporal relationships between these slip events to search for a pattern and possible controls on slip behavior. We use GPS and coral geodetic data to derive a coseismic slip distribution for the relatively understudied 2010 event and find that this event fits like a puzzle piece into a low slip patch left by the 2005 event. We compare the recent slip sequence with the historical sequence associated with the 1861 event and find that the modern slip pattern could be a repeat of the historical slip pattern, possibly suggesting the importance of stationary fault properties in controlling slip. The diverse set of slip events mostly fit our expectations within depth‐dependent rupture zones; however, the overlaps between events of different slip types may complicate this conceptual model. Along strike, we suggest that a subducting fracture zone could act to diversify the slip behavior, and we explore possible mechanisms for this slip control.

中文翻译：

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印度尼西亚苏门答腊the他巨型地壳的Banyak群岛分区的不同滑移行为

在Sunda巨型推力的狭窄〜75 km宽条带-Banyak群岛分区中，观察到了几乎所有类型的能够进行特大推力的滑移行为。与伟大的1861记录滑事件开始多样化名单中号_{w ^}  〜8.5级大地震，包括1907年的中号_{w ^}  〜8.2浅层地震海啸，在1966年至1981年慢滑事件，伟大的2005中号_W¯¯ 8.6尼亚斯岛，地震锡默卢和相关afterslip许多小的（中号 <6），中度（6 ≤ 中号 <7）地震，和大2010年4月6日中号_W¯¯7.8巴尼亚克群岛地震。在本文中，我们绘制了这些滑移事件之间的时空关系，以寻找模式和对滑移行为的可能控制。我们使用GPS和珊瑚大地测量数据来推导相对低估的2010年地震的同震滑动分布，发现该地震就像拼图碎片一样适合2005年地震留下的低滑动区域。我们将最近的滑动序列与1861年事件相关的历史序列进行了比较，发现现代滑动模式可能是历史滑动模式的重复，这可能表明固定断层性质在控制滑动中的重要性。在与深度有关的破裂带内，各种滑动事件大多符合我们的期望。然而，不同滑动类型的事件之间的重叠可能会使此概念模型复杂化。沿着走向，我们认为俯冲断裂带可以起到使滑动行为多样化的作用，并且我们探索了这种滑动控制的可能机制。