Download Event Information
Origin
PublicID |
2022p516754 |
UTC Time |
2022-07-11T04:45:29Z |
Latitude |
-33.37 (± 32.0
km)
|
Longitude |
179.47 (± 45.8
km)
|
Depth |
371 km (± 45 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
19 |
Used Station Count |
13 |
Standard Error |
0.65 (s) |
Azimuthal Gap |
348.17 (degrees) |
Minimum Distance |
4.52 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (MLv) |
4.5 |
|
MLv |
4.5 |
1 |
ML |
3.9 (± 0.2) |
5 |
mB |
4.3 (± 0.2) |
6 |
Mw(mB) |
3.4 (± 0.4) |
6 |
M |
4.1 |
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).