Eastern Australian hotspots produce the longest continental tracks on Earth (>2,000 km). These hotspots are generally assumed to be stationary with respect to one another, an observation reinforced by our analysis. If any motion between them occurred, it is within our 95% uncertainties of 370 km of accumulated motion between hotspots. In contrast, motion between eastern Australian hotspots and the spin axis is indicated by changing paleolatitudes of hotspots through time. Reconstructing Australian hotspot paleolatitudes makes use of the global reference frame established by the geocentric axial dipole hypothesis. The classic paleomagnetic approach to establishing paleolatitude typically uses studies of discrete formations of known age, but the nearly continuous record of volcanism over 34 Ma permit using paleomagnetic data from multiple, different studies that overlap in magnetization age in conjunction. This improves the robustness and precision of our paleolatitude estimates for Eastern Australian hotspot volcanoes. A northward shift of hotspot paleolatitudes between 15–24 Ma of ∼300–1,010 km (95% confidence limits) is observed for volcanoes along the Comboyne, Canobolas and Tasmantid tracks, and for interpolated positions along the Cosgrove and Lord Howe tracks but is significantly resolved only for volcanoes along Comboyne and Canobolas tracks, as well as for two ages from the Stradbroke and Britannia seamounts on the Tasmantid track. Before 24 Ma most data plot to the North of a fixed present day hotspot location in the paleomagnetic reference but 95% confidence limits overlap with it. Notable exceptions are an age from Hillsborough Volcano (Cosgrove Hotspot), and an age from Horse Head (Lord Howe Hotspot) that lie a small distance to the North km, and kmNorth, respectively. Importantly, paleolatitude changes observed along eastern Australian tracks are all explainable by the net rotation of the solid Earth, or true polar wander, with hotspots embedded in the global moving hotspot reference frame.

澳大利亚东部的热点地区是地球上最长的大陆轨道（>2,000 公里）。通常认为这些热点相对于彼此是固定的，我们的分析进一步证实了这一观点。如果它们之间发生任何运动，则在我们的内部95％热点之间370 km累积运动的不确定性。相反，澳大利亚东部热点和自旋轴之间的运动通过随时间变化的热点古纬度来指示。重建澳大利亚热点古纬度利用地心轴向偶极子假说建立的全球参考系。建立古纬度的经典古磁方法通常使用已知年龄的离散地层研究，但在34 Ma上几乎连续的火山记录允许使用来自多个不同研究的古磁数据，这些数据在磁化年龄重叠。这提高了我们对东澳大利亚州热点火山的古纬度估算的鲁棒性和准确性。热点古纬度的北移在15-24 Ma之间，约为300-1,010 km（95％置信限度）在Comboyne，Canobolas和Tasmantid沿线的火山以及Cosgrove和CaneLola Howe沿线的插值位置均得到了观察，但仅对Comboyne和Canobolas沿线的火山以及Stradbroke和大不列颠海山在塔斯曼蒂德轨道上。在24 Ma之前，大多数数据都绘制在古磁参考中当前固定热点区域以北的位置，但95％置信限与其重叠。值得注意的例外是，希尔斯伯勒火山（Cosgrove Hotspot）的年龄和马头角（豪勋爵（Lord Howe）热点）的年龄分别距北km和kmNorth不远。重要的是，沿澳大利亚东部轨道观测到的古纬度变化都可以通过固体地球的净旋转或真正的极地漂移来解释，而热点则嵌入了全球移动热点参考系中。