Magnitude 3.6, Mon Oct 14 2024 10:45 AM


Download Event Information


Origin


PublicID 2024p775425
UTC Time 2024-10-13T21:45:02Z
Latitude -30.45 (± 34.6 km)
Longitude -178.89 (± 102.6 km)
Depth 284 km (± 36 km)
Depth Type free
Earth Model iasp91
Used Phase Count 10
Used Station Count 9
Standard Error 0.48 (s)
Azimuthal Gap 192.85 (degrees)
Minimum Distance 1.45 (degrees)

Magnitudes


Type Magnitude Station Count
Preferred (Mw(mB)) 3.6 (± 0.4)  
ML 4.7 1
mB 4.4 (± 0.3) 5
Mw(mB) 3.6 (± 0.4) 5

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


-4.0-3.0-2.0-1.00.01.02.03.04.0residual (s)0246810Distance (degrees)Pick Residuals

Station Magnitudes (ML)


0.01.02.03.04.05.0MagnitudeDistance (degrees)Station Magnitudes (ML)

Station Magnitudes (mB)


0.01.02.03.04.05.06.0Magnitude9Distance (degrees)Station Magnitudes (mB)

Magnitude Residuals (ML)


-1.00.01.0ResidualDistance (degrees)Magnitude Residuals (ML)

Magnitude Residuals (mB)


-1.00.01.0Residual9Distance (degrees)Magnitude Residuals (mB)