Download Event Information
Origin
PublicID |
2022p742067 |
UTC Time |
2022-10-02T13:33:29Z |
Latitude |
-38.42 (± 8.9
km)
|
Longitude |
175.38 (± 6.0
km)
|
Depth |
250 km (± 7 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
41 |
Used Station Count |
34 |
Standard Error |
0.45 (s) |
Azimuthal Gap |
95.31 (degrees) |
Minimum Distance |
0.42 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (MLv) |
3.7 (± 0.5) |
|
MLv |
3.7 (± 0.5) |
73 |
ML |
2.6 (± 0.4) |
4 |
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).