Download Event Information
Origin
PublicID |
2016p666385 |
UTC Time |
2016-09-03T13:30:26Z |
Latitude |
-37.39 (± 4.7
km)
|
Longitude |
179.02 (± 8.2
km)
|
Depth |
18 km (± 8 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
104 |
Used Station Count |
100 |
Standard Error |
0.53 (s) |
Azimuthal Gap |
275.62 (degrees) |
Minimum Distance |
0.60 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
5.5 |
|
MLv |
5.5 (± 0.2) |
76 |
ML |
5.8 (± 0.2) |
75 |
M |
5.5 |
76 |
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).