Download Event Information
Origin
PublicID |
2022p901216 |
UTC Time |
2022-11-30T10:47:59Z |
Latitude |
-38.86 (± 2.3
km)
|
Longitude |
175.96 (± 2.7
km)
|
Depth |
9 km (± 5 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
34 |
Used Station Count |
28 |
Standard Error |
0.43 (s) |
Azimuthal Gap |
26.82 (degrees) |
Minimum Distance |
0.11 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (MLv) |
5.7 (± 0.2) |
|
M |
5.6 |
40 |
Mw(mB) |
5.6 (± 0.4) |
26 |
MLv |
5.7 (± 0.2) |
40 |
ML |
5.3 (± 0.2) |
19 |
mB |
6.0 (± 0.2) |
22 |
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).