Download Event Information
Origin
PublicID |
2024p691325 |
UTC Time |
2024-09-12T18:57:18Z |
Latitude |
-34.98 (± 8.3
km)
|
Longitude |
-178.97 (± 14.5
km)
|
Depth |
33 km (± 0 km) |
Depth Type |
operator assigned |
Earth Model |
iasp91 |
Used Phase Count |
21 |
Used Station Count |
14 |
Standard Error |
0.88 (s) |
Azimuthal Gap |
306.53 (degrees) |
Minimum Distance |
3.39 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (Mw(mB)) |
3.5 (± 0.4) |
|
mB |
4.4 |
1 |
ML |
4.2 (± 0.1) |
11 |
MLv |
4.5 (± 0.1) |
11 |
Mw(mB) |
3.5 (± 0.4) |
1 |
M |
4.5 |
11 |
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).