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Origin
PublicID |
2018p548218 |
UTC Time |
2018-07-22T20:10:41Z |
Latitude |
-40.29 (± 4.0
km)
|
Longitude |
176.62 (± 10.1
km)
|
Depth |
14 km (± 7 km) |
Depth Type |
free |
Earth Model |
nz3drx |
Used Phase Count |
25 |
Used Station Count |
25 |
Standard Error |
0.71 (s) |
Azimuthal Gap |
176.34 (degrees) |
Minimum Distance |
0.02 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
2.4 |
|
ML |
2.7 (± 0.2) |
18 |
MLv |
2.4 (± 0.2) |
15 |
M |
2.4 |
15 |
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).