PublicID | 2022p873987 |
UTC Time | 2022-11-20T08:55:13Z |
Latitude | -24.74 (± 10.7 km) |
Longitude | 179.68 (± 42.5 km) |
Depth | 443 km (± 35 km) |
Depth Type | free |
Earth Model | iasp91 |
Used Phase Count | 20 |
Used Station Count | 13 |
Standard Error | 1.55 (s) |
Azimuthal Gap | 309.74 (degrees) |
Minimum Distance | 4.98 (degrees) |
Type | Magnitude | Station Count |
Preferred (mB) | 4.3 | |
M | 5.2 | 1 |
Mw(mB) | 3.4 (± 0.4) | 1 |
mB | 4.3 | 1 |
MLv | 5.2 | 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.