Download Event Information
Origin
PublicID |
2022p652982 |
UTC Time |
2022-08-30T14:29:04Z |
Latitude |
-37.03 (± 7.4
km)
|
Longitude |
177.58 (± 7.0
km)
|
Depth |
107 km (± 15 km) |
Depth Type |
free |
Earth Model |
tab |
Used Phase Count |
25 |
Used Station Count |
21 |
Standard Error |
0.33 (s) |
Azimuthal Gap |
194.95 (degrees) |
Minimum Distance |
0.75 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (MLv) |
4.1 (± 0.3) |
|
MLv |
4.1 (± 0.3) |
102 |
ML |
3.8 (± 0.4) |
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).