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Origin
PublicID |
2024p875859 |
UTC Time |
2024-11-20T01:37:28Z |
Latitude |
-39.62 (± 3.7
km)
|
Longitude |
174.47 (± 4.2
km)
|
Depth |
159 km (± 5 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
51 |
Used Station Count |
32 |
Standard Error |
0.66 (s) |
Azimuthal Gap |
53.30 (degrees) |
Minimum Distance |
0.16 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (MLv) |
3.8 (± 0.3) |
|
ML |
3.4 |
1 |
MLv |
3.8 (± 0.3) |
87 |
M |
3.8 |
87 |
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).