A comprehensive catalogue of historical earthquakes, with accurate epicentres and harmonised magnitudes is a crucial resource for seismic hazard mapping. Here we update and combine catalogues from several sources to compile a catalogue of earthquakes in and near Iceland, in the years 1900–2019. In particular the epicentres are based on local information, whereas the magnitudes are based on teleseismic observations, primarily from international online catalogues. The most reliable epicentre information comes from the catalogue of the Icelandic Meteorological Office, but this is complemented with information from several technical reports, scientific publications, and newspaper articles. The catalogue contains 1281 moment magnitude (M_w) ≥4 events, and the estimated completeness magnitude is M_w 5.5 in the first years, going down to M_w 4.5 for recent years. The largest magnitude is M_w 7.0. Such merging of local data and teleseismic catalogues has not been done before for Icelandic earthquakes, and the result is an earthquake map with much more accurate locations than earlier maps. The catalogue also lists 5640 additional earthquakes on the Mid-Atlantic Ridge, north of 43^∘, with both epicentres and magnitudes determined teleseismically. When moment magnitudes are not available, proxy M_w values are computed using χ² regression, normally on the surface-wave magnitude but exceptionally on the body-wave magnitude. Magnitudes of M_w≥4.5 have associated uncertainty estimates. The actual combined seismic moment released in the Icelandic earthquakes is found to be consistent with the moment estimated using a simple plate motion model, indicating that the seismic activity of the catalogue period might be typical of any 120-year time span. The catalogue is named ICEL-NMAR, and it is available online at http://data.mendeley.com (last access: 19 July 2021).

中文翻译：

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冰岛和北大西洋中脊的统一仪器地震目录

具有准确震中和协调震级的历史地震综合目录是绘制地震危险性图的重要资源。在这里，我们更新并合并来自多个来源的目录，以编制 1900 年至 2019 年冰岛及其附近的地震目录。特别是震中基于当地信息，而震级则基于远震观测，主要来自国际在线目录。最可靠的震中信息来自冰岛气象局的目录，但辅以来自几份技术报告、科学出版物和报纸文章的信息。目录包含 1281 个矩震级 ( M _w ) ≥4事件，估计完整性幅度是中号_W¯¯ 在第一年5.5下降到中号_W¯¯  4.5近年来。最大的震级为M _w  7.0。冰岛地震之前没有对当地数据和远震目录进行这种合并，结果是地震图的位置比早期的地图准确得多。该目录还列出了 43 ^∘以北大西洋中脊的 5640 次额外地震，震中和震级均通过远震确定。当力矩大小不可用时，使用χ ²计算代理M _w值 回归，通常在表面波幅度上，但在体波幅度上例外。震级中号_W¯¯ ≥4.5有相关的不确定性估算。发现冰岛地震中释放的实际组合地震矩与使用简单板块运动模型估计的矩一致，表明该目录周期的地震活动可能是任何 120 年时间跨度的典型地震活动。该目录名为 ICEL-NMAR，可在http://data.mendeley.com在线获取（最后访问时间：2021 年 7 月 19 日）。