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1844年8月大关北地震是马边─永善地震带中历史上较强的一次地震，过去一直很少有人研究．以前的地震目录对此次地震有不同认识．本文拟通过查阅历史地震资料，实地考查这次地震的地面破坏情况以及询访当地居民，初步认为1844年8月地震的震中应在元亨一带，震级在7级左右，极震区烈度为Ⅸ度，与1974年大关─永善7．1级地震的宏观震中基本一致．
The Sept. 1844 earthquake in North Korea was a historically strong one in the Mabian-Yongshan Seismic Belt, and few people have studied it in the past. The previous earthquake catalog has different understanding of the earthquake. This paper intends to inspect the ground damage of the earthquake and inquire about the local residents by referring to the historical seismic data. It is preliminarily believed that the epicenter of the earthquake in August 1844 should be in the area of Yuanheng with a magnitude of about 7 and the intensity of the extreme earthquake area is IX This is consistent with the macro epicenter of the magnitude 7.1 earthquake in Yongshan in 1974.