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从原欧亚板块划出阿穆利亚微板块，并建立一个包括太平洋、北美、欧亚、鄂霍次克及菲律宾海等板块在内的６板块系统，利用地震滑移矢量，转换断层走向，洋中脊扩展速率，以及最新的ＧＰＳ观测资料，采用Ｍｏｎｔｅ－Ｃａｒｌｏ盒子法，反演得到该６板块系统的欧拉运动矢量．本文得到的有关欧拉矢量为：ＡＭ-ＥＵ（６０．４２°Ｎ，１２３．２５°Ｅ，０．０２５°／Ｍａ），ＡＭ-ＯＫ（５３．２０°Ｎ，１４１．９５°Ｅ，０．４７６°／Ｍａ）以及ＡＭ-ＰＨ（５０．８４°Ｎ，１５８.１３°Ｅ，１.２０４°／Ｍａ），ＡＭ－ＥＵ的欧拉运动极点位于贝加尔隆起的东北及斯塔诺夫山脉的西北，并给出在贝加尔隆起有０．４－０．７ｍｍ／ａ的扩张，与从地质学证据得到的估计结果一致；由ＡＭ－ＯＫ及ＡＭ－ＰＨ欧拉运动矢量可以分别得到日本海东缘的６-１５ｍｍ／ａ及日本南海地槽带的５１－６６ｍｍ／ａ收敛速率，与最新的ＧＰＳ观测结果并不一致．因此，东亚北部地区存在独立的南中国微板块及其它亚尺度的微板块，可以更好地描述该地区现今板块构造的运动规律．
From the original Eurasian Plate, we draw out the Amurian plate and set up a 6-plate system including the Pacific Ocean, North America, Eurasia, Okhotsk and the Philippine Sea. Using the seismic slip vector, we can transform the strike of the fault , Mid-ocean ridge extension rate, and the latest GPS observations, the Euler motion vector of the 6-plate system was obtained by Monte-Carlo box method. The Euler vectors obtained in this paper are: AM-EU (60.42 ° N, 123.25 ° E, 0.025 ° / Ma), AM-OK .476 ° / Ma) and AM-PH (50.84 ° N, 158.13 ° E, 1.204 ° / Ma). The poles of the Eulerian movement of the AM-EU are located in the northeast of the Baikal Uplift and the mountains of the Starnov And gives an expansion of 0.4-0.7 mm / a over the Baikal uplift, consistent with the estimation obtained from geological evidence; the sea of Japan can be obtained separately from AM-OK and AM-PH Euler motion vectors The convergence rate of 6-15mm / a on the eastern margin and 51-66mm / a on the South China Sea terrain is not consistent with the latest GPS observations. Therefore, the existence of independent South China microplate and other sub-scale microplates in the northern East Asia can better describe the current law of tectonics in the area.