Download Event Information
Origin
PublicID |
2025p067268 |
UTC Time |
2025-01-25T21:20:55Z |
Latitude |
-42.01 (± 3.5
km)
|
Longitude |
174.15 (± 3.6
km)
|
Depth |
24 km (± 4 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
38 |
Used Station Count |
21 |
Standard Error |
0.62 (s) |
Azimuthal Gap |
143.38 (degrees) |
Minimum Distance |
0.14 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (MLv) |
4.5 (± 0.2) |
|
MLv |
4.5 (± 0.2) |
35 |
ML |
4.3 (± 0.1) |
12 |
mB |
4.8 (± 0.4) |
3 |
Mw(mB) |
4.1 (± 0.4) |
3 |
M |
4.5 |
35 |
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).