PublicID | 2023p395860 |
UTC Time | 2023-05-27T11:14:28Z |
Latitude | -39.04 (± 5.1 km) |
Longitude | 175.79 (± 5.7 km) |
Depth | 3 km (± 6 km) |
Depth Type | free |
Earth Model | iasp91 |
Used Phase Count | 14 |
Used Station Count | 12 |
Standard Error | 0.13 (s) |
Azimuthal Gap | 104.50 (degrees) |
Minimum Distance | 0.08 (degrees) |
Type | Magnitude | Station Count |
Preferred (MLv) | 1.1 (± 0.1) | |
ML | 0.9 (± 0.2) | 10 |
MLv | 1.1 (± 0.1) | 3 |
M | 1.1 | 3 |
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.