FA-71527 / Seismic magnitude estimation / Member archive

Maximum-curvature completeness magnitude: curvature correction · case 02

Mc is 0.2 units too low, admitting incomplete bins.

Member previewVariant 2 · 3 implementations · 8 checks per implementation

Case contract

Magnitudes in hundredths are binned to 0.1 by rounding half up (floor((m+5)/10) tenths). Mc is the bin with the highest count (ties: lowest bin) plus a 0.2 correction. Return Mc in magnitude units rounded 0.1, or None when empty.

Why this case matters

Completeness magnitude determines which events enter rate and b-value estimates.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
raw catalogue 3	`-0.1`	`0.1`	Failed

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