Magnitude 5.2, Wed Aug 7 2024 5:59 PM


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Origin


PublicID 2024p592574
UTC Time 2024-08-07T05:59:05Z
Latitude -11.16 (± 19.7 km)
Longitude 165.42 (± 21.6 km)
Depth 33 km (± 0 km)
Depth Type operator assigned
Earth Model iasp91
Used Phase Count 10
Used Station Count 9
Standard Error 0.54 (s)
Azimuthal Gap 214.49 (degrees)
Minimum Distance 4.60 (degrees)

Magnitudes


Type Magnitude Station Count
Preferred (mB) 5.2 (± 0.2)  
mB 5.2 (± 0.2) 7
Mw(mB) 4.6 (± 0.4) 7
ML 4.9 (± 0.1) 2
MLv 5.1 (± 0.4) 2
M 4.9 7

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


-3.0-2.0-1.00.01.02.03.0residual (s)0246810121416182022242628303234363840424446485052545658Distance (degrees)Pick Residuals

Station Magnitudes (mB)


0.01.02.03.04.05.06.0Magnitude681012141618202224262830Distance (degrees)Station Magnitudes (mB)

Station Magnitudes (ML)


0.01.02.03.04.05.0Magnitude5Distance (degrees)Station Magnitudes (ML)

Station Magnitudes (MLv)


0.01.02.03.04.05.06.0Magnitude5Distance (degrees)Station Magnitudes (MLv)

Magnitude Residuals (mB)


-1.00.01.0Residual681012141618202224262830Distance (degrees)Magnitude Residuals (mB)

Magnitude Residuals (ML)


-1.00.01.0Residual5Distance (degrees)Magnitude Residuals (ML)

Magnitude Residuals (MLv)


-1.00.01.0Residual5Distance (degrees)Magnitude Residuals (MLv)