PublicID | 2023p659985 |
UTC Time | 2023-09-02T04:40:10Z |
Latitude | -35.89 (± 13.9 km) |
Longitude | 178.23 (± 13.9 km) |
Depth | 191 km (± 17 km) |
Depth Type | free |
Earth Model | iasp91 |
Used Phase Count | 24 |
Used Station Count | 19 |
Standard Error | 0.56 (s) |
Azimuthal Gap | 259.10 (degrees) |
Minimum Distance | 1.67 (degrees) |
Type | Magnitude | Station Count |
Preferred (MLv) | 3.9 (± 0.3) | |
ML | 3.9 (± 0.3) | 8 |
MLv | 3.9 (± 0.3) | 32 |
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.