PublicID | 2022p252570 |
UTC Time | 2022-04-04T10:48:59Z |
Latitude | -34.99 (± 28.9 km) |
Longitude | 179.34 (± 26.2 km) |
Depth | 241 km (± 38 km) |
Depth Type | free |
Earth Model | iasp91 |
Used Phase Count | 19 |
Used Station Count | 14 |
Standard Error | 0.69 (s) |
Azimuthal Gap | 330.13 (degrees) |
Minimum Distance | 2.70 (degrees) |
Type | Magnitude | Station Count |
Preferred (MLv) | 3.5 (± 0.5) | |
MLv | 3.5 (± 0.5) | 5 |
ML | 3.4 (± 0.3) | 6 |
M | 3.5 | 5 |
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.