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In an earthquake catalog, the magnitude of completeness (Mc) is the minimum magnitude above which all earthquakes within a certain region are reliably recorded. For example, if the Mc of a catalog for a specific region is 2.6 from 1980 to the present, this means that all earthquakes above a magnitude 2.6 have been recorded in the catalog from 1980 to the present time. When interpreting this data, a Mc too high may mean under-sampling, whereas a value too low could indicate an erroneous seismicity parameter.

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  • Magnitude of completeness (en)
  • 완전성 규모 (ko)
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  • In an earthquake catalog, the magnitude of completeness (Mc) is the minimum magnitude above which all earthquakes within a certain region are reliably recorded. For example, if the Mc of a catalog for a specific region is 2.6 from 1980 to the present, this means that all earthquakes above a magnitude 2.6 have been recorded in the catalog from 1980 to the present time. When interpreting this data, a Mc too high may mean under-sampling, whereas a value too low could indicate an erroneous seismicity parameter. (en)
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  • In an earthquake catalog, the magnitude of completeness (Mc) is the minimum magnitude above which all earthquakes within a certain region are reliably recorded. For example, if the Mc of a catalog for a specific region is 2.6 from 1980 to the present, this means that all earthquakes above a magnitude 2.6 have been recorded in the catalog from 1980 to the present time. When interpreting this data, a Mc too high may mean under-sampling, whereas a value too low could indicate an erroneous seismicity parameter. Another definition includes, 'the lowest magnitude at which 100% of the earthquakes in a space-time volume are detected.' (en)
  • 지진 목록에서 완전성 규모(Magnitude of completeness, Mc)란 특정 지역 내에서 모든 지진이 빠짐 없이, 신뢰성 있게 기록할 수 있는 최소 지진 규모를 의미한다. 예를 들어 특정 지역의 지진 목록의 완전성 규모 Mc가 1980년부터 현재까지 2.6이라면 이는 1980년부터 현재까지 규모 M2.6 이상의 모든 지진은 기록되었음을 말한다. 본 데이터를 해석할 때 완전성 규모가 너무 높으면 지진을 매우 적게 샘플링했다는 의미지만, 값이 너무 낮아도 실제 지진이 아닌 노이즈까지 기록되었을 가능성 등 잘못된 지진 활동 매개변수가 기록될 수 있다. 완전성 규모의 또 다른 정의로는 "해당 시공간에서 그 규모의 지진을 100% 완전히 감지할 수 있는 최저 규모"를 의미한다. (ko)
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