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Origin
PublicID |
2015p014157 |
UTC Time |
2015-01-06T05:40:58Z |
Latitude |
-24.08 (± 22.3
km)
|
Longitude |
175.07 (± 92.1
km)
|
Depth |
600 km (± 0 km) |
Depth Type |
operator assigned |
Earth Model |
iasp91 |
Used Phase Count |
19 |
Used Station Count |
17 |
Standard Error |
2.07 (s) |
Azimuthal Gap |
352.22 (degrees) |
Minimum Distance |
13.83 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
4.0 |
|
mB |
4.8 (± 0.3) |
9 |
Mw(mB) |
4.0 (± 0.4) |
9 |
M |
4.0 |
9 |
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).