Download Event Information
Origin
PublicID |
2022p431491 |
UTC Time |
2022-06-09T15:38:01Z |
Latitude |
-31.98 (± 19.7
km)
|
Longitude |
179.80 (± 49.0
km)
|
Depth |
249 km (± 29 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
18 |
Used Station Count |
11 |
Standard Error |
0.92 (s) |
Azimuthal Gap |
196.51 (degrees) |
Minimum Distance |
3.34 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (mB) |
4.7 |
|
MLv |
4.4 (± 0.4) |
5 |
ML |
4.3 (± 0.1) |
3 |
mB |
4.7 |
1 |
Mw(mB) |
3.9 (± 0.4) |
1 |
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).