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Origin
PublicID |
2017p517006 |
UTC Time |
2017-07-11T07:00:10Z |
Latitude |
-49.35 (± 8.8
km)
|
Longitude |
164.60 (± 9.6
km)
|
Depth |
33 km (± 0 km) |
Depth Type |
operator assigned |
Earth Model |
iasp91 |
Used Phase Count |
36 |
Used Station Count |
28 |
Standard Error |
0.92 (s) |
Azimuthal Gap |
310.98 (degrees) |
Minimum Distance |
3.39 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
6.4 |
|
MLv |
7.3 (± 0.1) |
16 |
ML |
7.4 (± 0.2) |
18 |
mB |
6.6 (± 0.3) |
115 |
Mw(mB) |
6.4 (± 0.4) |
153 |
M |
6.4 |
153 |
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).