The 30 October 2020, M_w 7.0 Samos mainshock took place in the offshore north of Samos Island in eastern Aegean area, previously struck in 1904 with a comparable magnitude earthquake offshore the southern coastline. The investigation of the aftershock seismicity evolution and the properties of the activated fault network was accomplished with aftershock relocation performed with the double-difference and cross-correlation techniques. The highly accurate relocated seismicity illustrates a well-defined E–W activated structure located deeper than 5 km with an average depth of ~ 12 km. Moment tensor solutions indicate mostly normal faulting with an average T-axis ~ 185^ο. Strong-motion waveform modeling revealed a N-dipping fault plane with a coseismic slip patch of 36 km \(\times\) 22 km and a maximum slip equal to 1 m at 12 km depth. The slip is mainly concentrated in a single asperity implying a rupture mode of asperities breaking in isolated earthquakes rather than to cooperate to produce a larger rupture. Coulomb stress calculations unveil increased positive static stress changes values at the locations of the majority of the aftershocks and activation of minor fault segments by stress transfer.

2020年10月30日，M _w 7.0萨摩斯主震发生在爱琴海东部萨摩斯岛以北的海上，此前于1904年在南部海岸线附近发生了同等地震。通过利用双差和互相关技术进行余震重定位，完成了对余震地震活动性演化和活动断层网络特性的研究。高度精确的重新定位地震活动说明了定义明确的E-W激活结构，其深度超过5 km，平均深度约为12 km。矩张量的解决方案表明大多正常平均T轴〜185断层^ο。强运动波形建模揭示了一个N倾角断层面，具有36 km的同震滑动斑块\（\ times \） 22 km，在12 km深度处最大滑差等于1 m。滑移主要集中在一个单一的凹凸上，这意味着在孤立的地震中，凹凸的破裂模式是破裂的，而不是合作产生更大的破裂。库仑应力计算揭示了大多数余震位置处正静应力变化值的增加以及应力转移激活的较小断层段。