PublicID | 2025p150197 |
UTC Time | 2025-02-25T13:45:18Z |
Latitude | -37.82 (± 13.2 km) |
Longitude | 177.69 (± 8.8 km) |
Depth | 7 km (± 7 km) |
Depth Type | free |
Earth Model | nz3drx |
Used Phase Count | 66 |
Used Station Count | 66 |
Standard Error | 2.07 (s) |
Azimuthal Gap | 168.56 (degrees) |
Minimum Distance | 0.10 (degrees) |
Type | Magnitude | Station Count |
Preferred (M) | 3.7 | |
ML | 3.3 (± 0.4) | 28 |
MLv | 3.7 (± 0.6) | 48 |
M | 3.7 | 48 |
mB | 4.9 | 1 |
Mw(mB) | 4.2 (± 0.4) | 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).
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.