PublicID | 2023p097540 |
UTC Time | 2023-02-06T02:09:45Z |
Latitude | -38.07 (± 54.5 km) |
Longitude | 178.34 (± 33.4 km) |
Depth | 10 km (± 39 km) |
Depth Type | free |
Earth Model | nz3drx |
Used Phase Count | 10 |
Used Station Count | 10 |
Standard Error | 0.87 (s) |
Azimuthal Gap | 294.51 (degrees) |
Minimum Distance | 0.06 (degrees) |
Type | Magnitude | Station Count |
Preferred (M) | 3.0 | |
MLv | 3.0 (± 0.3) | 7 |
M | 3.0 | 7 |
ML | 3.0 (± 0.2) | 8 |
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.