| PublicID | 2022p050134 |
| UTC Time | 2022-01-19T13:07:09Z |
| Latitude | -30.61 (± 5.4 km) |
| Longitude | -176.37 (± 21.9 km) |
| Depth | 33 km (± 0 km) |
| Depth Type | operator assigned |
| Earth Model | iasp91 |
| Used Phase Count | 13 |
| Used Station Count | 12 |
| Standard Error | 3.41 (s) |
| Azimuthal Gap | 253.31 (degrees) |
| Minimum Distance | 1.90 (degrees) |
| Type | Magnitude | Station Count |
| Preferred (mB) | 4.6 (± 0.3) | |
| MLv | 4.9 (± 0.0) | 2 |
| ML | 4.9 (± 0.1) | 2 |
| mB | 4.6 (± 0.3) | 2 |
| Mw(mB) | 3.8 (± 0.4) | 2 |
| M | 4.9 | 2 |
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.
