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引言目前单台测定的震级由于受各种因素的影峋存在着比较大的偏差。随着对震级精度要求的日益提高,需要我们能结合本台的实际情况,阐明震级测定工作中存在的问题和提出解决这些问题的方法。本文是我们根据1971～1980年十年来兰州台记录的比较好,全国台网观测报告中给出了震级、震中距和震中位置的520个中强震。重新计算了兰州台的震级后与全国台网观测报告中给出的震级相比较,分析后得出的一点地粗浅认识。妥否,尚需在今后的实际观测中予以验证。
INTRODUCTION At present, the magnitude of a single measurement is subject to relatively large deviations due to various factors. With the increasing requirement for the magnitude accuracy, we need to be able to combine the actual situation of this station, clarify the problems existing in the magnitude determination work and propose ways to solve these problems. This article is based on the well-documented records of Lanzhou in the decade of 1971-1980. The 520 moderately strong earthquakes in the National Taiwan Strait Observatory report the magnitude, epicentral distance and epicentral location. After recalculating the magnitudes of Lanzhou station and comparing with the magnitudes given in the national network observation report, a little superficial understanding was obtained. It is still necessary to verify the actual observations in the future.