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Origin
PublicID |
2024p313806 |
UTC Time |
2024-04-26T02:34:58Z |
Latitude |
-31.47 (± 10.7
km)
|
Longitude |
-178.42 (± 28.3
km)
|
Depth |
241 km (± 16 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
18 |
Used Station Count |
12 |
Standard Error |
0.86 (s) |
Azimuthal Gap |
189.24 (degrees) |
Minimum Distance |
2.25 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (Mw(mB)) |
3.8 (± 0.4) |
|
MLv |
4.7 (± 0.2) |
7 |
mB |
4.6 (± 0.2) |
6 |
Mw(mB) |
3.8 (± 0.4) |
6 |
M |
4.4 |
7 |
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).