PublicID | 2024p141412 |
UTC Time | 2024-02-22T07:43:19Z |
Latitude | -30.78 (± 7.3 km) |
Longitude | -178.36 (± 20.6 km) |
Depth | 334 km (± 16 km) |
Depth Type | free |
Earth Model | iasp91 |
Used Phase Count | 25 |
Used Station Count | 18 |
Standard Error | 0.86 (s) |
Azimuthal Gap | 185.22 (degrees) |
Minimum Distance | 1.56 (degrees) |
Type | Magnitude | Station Count |
Preferred (Mw(mB)) | 4.1 (± 0.4) | |
mB | 4.8 (± 0.3) | 38 |
Mw(mB) | 4.1 (± 0.4) | 5 |
ML | 5.8 (± 0.2) | 2 |
MLv | 5.4 (± 0.4) | 8 |
M | 5.0 | 8 |
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.