| PublicID | 2023p015787 |
| UTC Time | 2023-01-06T20:09:18Z |
| Latitude | -26.80 (± 38.8 km) |
| Longitude | -178.12 (± 23.6 km) |
| Depth | 300 km (± 0 km) |
| Depth Type | operator assigned |
| Earth Model | iasp91 |
| Used Phase Count | 17 |
| Used Station Count | 17 |
| Standard Error | 1.17 (s) |
| Azimuthal Gap | 317.68 (degrees) |
| Minimum Distance | 2.46 (degrees) |
| Type | Magnitude | Station Count |
| Preferred (mB) | 4.7 (± 0.1) | |
| mB | 4.7 (± 0.1) | 8 |
| Mw(mB) | 4.0 (± 0.4) | 5 |
| M | 4.0 | 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).
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.
