Download Event Information
Origin
PublicID |
2022p742348 |
UTC Time |
2022-10-02T16:03:17Z |
Latitude |
-39.51 (± 3.4
km)
|
Longitude |
175.72 (± 3.3
km)
|
Depth |
10 km (± 7 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
26 |
Used Station Count |
19 |
Standard Error |
0.31 (s) |
Azimuthal Gap |
84.93 (degrees) |
Minimum Distance |
0.10 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (MLv) |
1.2 (± 0.3) |
|
ML |
1.3 (± 0.3) |
14 |
MLv |
1.2 (± 0.3) |
7 |
M |
1.2 |
7 |
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).