Magnitude 2.4, Mon Sep 8 2025 10:41 PM


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Origin


PublicID 2025p676879
UTC Time 2025-09-08T10:41:13Z
Latitude -36.08 (± 71.9 km)
Longitude 179.59 (± 64.4 km)
Depth 285 km (± 56 km)
Depth Type free
Earth Model iasp91
Used Phase Count 8
Used Station Count 7
Standard Error 0.34 (s)
Azimuthal Gap 346.25 (degrees)
Minimum Distance 1.97 (degrees)

Magnitudes


Type Magnitude Station Count
Preferred (MLv) 2.4  
MLv 2.4 1
ML 2.9 (± 0.3) 5
M 2.4 1

GeoNet combines magnitudes into a summary magnitude, M, which consists of a weighted average of the individual magnitudes and attempts to be a best possible compromise between all magnitudes for a range of earthquake sizes. Summary magnitude for GeoNet is then defined as:

M = (2 * MLv + (0.4 * number_of stations(Mw(mB)) - 1) * Mw(mB)) / (2 + (0.4 * number_of_stations(Mw(mB)) - 1))

Where MLv is local magnitude calculated on the vertical component and Mw(mB) is a Mw estimation based of mB by Bormann and Saul (2008).

Origin Map


Map of New Zealand.

Map showing stations with picks used to locate the earthquake. Stations with picks that have a zero weight in the solution are shown as small grey circles. Those with a higher weight are shown as larger circles. The quake is shown by the largest circle.

Pick Residuals


-1.00.01.0residual (s)012Distance (degrees)Pick Residuals

Station Magnitudes (MLv)


0.01.02.03.0MagnitudeDistance (degrees)Station Magnitudes (MLv)

Station Magnitudes (ML)


0.01.02.03.04.0MagnitudeDistance (degrees)Station Magnitudes (ML)

Magnitude Residuals (MLv)


-1.00.01.0ResidualDistance (degrees)Magnitude Residuals (MLv)

Magnitude Residuals (ML)


-1.00.01.0ResidualDistance (degrees)Magnitude Residuals (ML)