PublicID | 2024p069631 |
UTC Time | 2024-01-26T18:19:43Z |
Latitude | -40.87 (± 3.2 km) |
Longitude | 175.53 (± 3.0 km) |
Depth | 21 km (± 6 km) |
Depth Type | free |
Earth Model | iasp91 |
Used Phase Count | 20 |
Used Station Count | 13 |
Standard Error | 0.61 (s) |
Azimuthal Gap | 89.04 (degrees) |
Minimum Distance | 0.03 (degrees) |
Type | Magnitude | Station Count |
Preferred (MLv) | 2.5 (± 0.2) | |
MLv | 2.5 (± 0.2) | 25 |
ML | 2.3 (± 0.2) | 6 |
M | 2.5 | 25 |
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.