PublicID | 2022p901216 |
UTC Time | 2022-11-30T10:47:59Z |
Latitude | -38.86 (± 2.3 km) |
Longitude | 175.96 (± 2.7 km) |
Depth | 9 km (± 5 km) |
Depth Type | free |
Earth Model | iasp91 |
Used Phase Count | 34 |
Used Station Count | 28 |
Standard Error | 0.43 (s) |
Azimuthal Gap | 26.82 (degrees) |
Minimum Distance | 0.11 (degrees) |
Type | Magnitude | Station Count |
Preferred (MLv) | 5.7 (± 0.2) | |
M | 5.6 | 40 |
Mw(mB) | 5.6 (± 0.4) | 26 |
MLv | 5.7 (± 0.2) | 40 |
ML | 5.3 (± 0.2) | 19 |
mB | 6.0 (± 0.2) | 22 |
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.