ICEL-NMAR Earthquake Catalogue

The ICEL-NMAR Earthquake Catalogue, version 2, contains a list of MW ≥ 4 earthquakes during the period 1900-2019 in Iceland and the Northern Mid-Atlantic Ridge. The catalogue is described in the article [1], and those who use it for scientific work are requested to cite that article. A selection criterion for inclusion in the catalogue is that an earthquake is listed in the ISC Bulletin Event Catalog or in the catalogue of Ambraseys and Sigbjornsson [2] and assigned an MW, MS or mb magnitude. Entries in the catalogue are marked either ICEL for events in the region 62°-68°N and 12°-26°W, or NMAR for other events in the region 44°–75°N, 0°–40°W together with 67°–73°N, 0°–17°E (covering the Northern Mid-Atlantic Ridge). ICEL events have reassessed locations but NMAR events have locations copied directly from the ISC catalogue. Both kinds have reassessed magnitudes, including proxy MW obtained with regression. [1] Kristján Jónasson, Bjarni Bessason, Ásdís Helgadóttir, Páll Einarsson, Gunnar B. Gudmundsson, Bryndís Brandsdóttir, Kristín S. Vogfjörd, and Kristín Jónsdóttir. A Harmonized Instrumental Earthquake Catalogue for Iceland and the Northern Mid-Atlantic Ridge. Accepted for publication in Earthquake Hazards and Earth System Sciences (manuscript preprint available on ESSOAr). [2] Nicholas N Ambraseys and Ragnar Sigbjornsson, 2000. Re-appraisal of the seismicity of Iceland. University of Iceland Earthquake Engineering Research Centre.

ICEL-NMAR地震目录（ICEL-NMAR Earthquake Catalogue）版本2，收录了1900年至2019年期间冰岛及北大西洋中脊北段范围内矩震级（MW）≥4的地震列表。本目录的详细说明参见文献[1]，使用该目录开展科研工作的学者请务必引用该文献。
本目录的入选标准为：地震需被收录于国际地震中心（ISC）公报事件目录，或Ambraseys与Sigbjornsson编制的目录[2]，且被赋予了矩震级（MW）、面波震级（MS）或体波震级（mb）。
目录中的地震事件将被标记为ICEL或NMAR：其中ICEL类事件位于北纬62°-68°、西经12°-26°的区域；NMAR类事件则覆盖北纬44°–75°、西经0°–40°，以及北纬67°–73°、东经0°–17°的区域（包含北大西洋中脊北段）。
ICEL类事件的震中位置经过重新厘定，而NMAR类事件的震中位置直接源自ISC目录。两类事件的震级均经过重新厘定，其中包括通过回归分析得到的替代矩震级。
[1] Kristján Jónasson、Bjarni Bessason、Ásdís Helgadóttir、Páll Einarsson、Gunnar B. Gudmundsson、Bryndís Brandsdóttir、Kristín S. Vogfjörd及Kristín Jónsdóttir：《冰岛及北大西洋中脊北段标准化仪器地震目录》，已被《地震灾害与地球系统科学》（Earthquake Hazards and Earth System Sciences）接收发表（稿件预印本可于ESSOAr平台获取）。
[2] Nicholas N Ambraseys与Ragnar Sigbjornsson，2000年：《冰岛地震活动性再评估》，冰岛大学地震工程研究中心。