Download Event Information
Origin
PublicID |
2024p141412 |
UTC Time |
2024-02-22T07:43:19Z |
Latitude |
-30.78 (± 7.3
km)
|
Longitude |
-178.36 (± 20.6
km)
|
Depth |
334 km (± 16 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
25 |
Used Station Count |
18 |
Standard Error |
0.86 (s) |
Azimuthal Gap |
185.22 (degrees) |
Minimum Distance |
1.56 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (Mw(mB)) |
4.1 (± 0.4) |
|
mB |
4.8 (± 0.3) |
38 |
Mw(mB) |
4.1 (± 0.4) |
5 |
ML |
5.8 (± 0.2) |
2 |
MLv |
5.4 (± 0.4) |
8 |
M |
5.0 |
8 |
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).