PublicID | 2023p873042 |
UTC Time | 2023-11-20T00:36:22Z |
Latitude | -48.23 (± 8.0 km) |
Longitude | 165.20 (± 5.7 km) |
Depth | 33 km (± 0 km) |
Depth Type | operator assigned |
Earth Model | iasp91 |
Used Phase Count | 19 |
Used Station Count | 15 |
Standard Error | 0.86 (s) |
Azimuthal Gap | 132.43 (degrees) |
Minimum Distance | 2.30 (degrees) |
Type | Magnitude | Station Count |
Preferred (MLv) | 5.2 (± 0.2) | |
MLv | 5.2 (± 0.2) | 19 |
ML | 5.1 (± 0.2) | 10 |
mB | 5.0 (± 0.2) | 21 |
Mw(mB) | 4.3 (± 0.4) | 0 |
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.