PublicID | 2022p232547 |
UTC Time | 2022-03-28T00:59:46Z |
Latitude | -49.59 (± 8.7 km) |
Longitude | 164.12 (± 8.6 km) |
Depth | 33 km (± 0 km) |
Depth Type | operator assigned |
Earth Model | iasp91 |
Used Phase Count | 22 |
Used Station Count | 15 |
Standard Error | 1.33 (s) |
Azimuthal Gap | 158.83 (degrees) |
Minimum Distance | 3.78 (degrees) |
Type | Magnitude | Station Count |
Preferred (mB) | 5.4 | |
MLv | 5.0 (± 0.2) | 6 |
ML | 4.8 (± 0.1) | 11 |
mB | 5.4 | 1 |
Mw(mB) | 4.8 (± 0.4) | 1 |
M | 5.0 | 6 |
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.