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Magnitude Conversion is a service used for establishing linear relationships between different magnitude scales, which can be later used for conversion of magnitudes from one scale to another. The input file is the seismic catalog that can be uploaded from "Change Input" tab (shown in upper right part of Figure 8). The Service can be performed only in datasets where more than one magnitude scale is assigned for the seismic events (e.g. ML and Mw). The other parameters that the user has to set/choose are also shown in Figure 8:

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Figure 8.

• Choose first vector to compare: The user may choose among the different magnitude scales provided by the catalog.
• Choose second vector to compare: The user may choose among the different magnitude scales provided by the catalog.
• Regression Method: Three different regression methods are available - General Orthogonal Regression, Standard Least Squares and Inverted Least Squares.
• Error Variance Ratio: A float number should be assigned here (default is 1). Note that this option is only valid for General Orthogonal Regression method.

• FilterOverMmin

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• FilterWithinTime

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