Download Event Information
Origin
PublicID |
2023p390395 |
UTC Time |
2023-05-25T10:39:37Z |
Latitude |
-23.23 (± 0.0
km)
|
Longitude |
170.80 (± 0.0
km)
|
Depth |
10 km (± 0 km) |
Depth Type |
free |
Earth Model |
|
Used Phase Count |
0 |
Used Station Count |
0 |
Standard Error |
3.84 (s) |
Azimuthal Gap |
0.00 (degrees) |
Minimum Distance |
0.00 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (mB) |
5.1 (± 0.1) |
|
M |
4.7 |
20 |
Mw(mB) |
4.4 (± 0.4) |
20 |
mB |
5.1 (± 0.1) |
20 |
ML |
5.3 (± 0.1) |
2 |
MLv |
5.5 (± 0.1) |
2 |
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).