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Origin
PublicID |
2022p470400 |
UTC Time |
2022-06-24T01:08:58Z |
Latitude |
-38.53 (± 12.9
km)
|
Longitude |
175.10 (± 15.8
km)
|
Depth |
215 km (± 19 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
24 |
Used Station Count |
20 |
Standard Error |
0.76 (s) |
Azimuthal Gap |
215.33 (degrees) |
Minimum Distance |
1.22 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (MLv) |
2.3 (± 0.3) |
|
ML |
2.9 (± 0.3) |
4 |
MLv |
2.3 (± 0.3) |
5 |
M |
2.3 |
5 |
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).