Download Event Information
Origin
PublicID |
2024p311632 |
UTC Time |
2024-04-25T07:18:13Z |
Latitude |
-40.46 (± 2.9
km)
|
Longitude |
176.17 (± 3.0
km)
|
Depth |
15 km (± 8 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
19 |
Used Station Count |
10 |
Standard Error |
0.57 (s) |
Azimuthal Gap |
76.69 (degrees) |
Minimum Distance |
0.16 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (MLv) |
1.4 (± 0.5) |
|
ML |
1.4 (± 0.3) |
8 |
MLv |
1.4 (± 0.5) |
4 |
M |
1.4 |
4 |
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).