Download Event Information
Origin
PublicID |
2016p661633 |
UTC Time |
2016-09-01T19:18:28Z |
Latitude |
-37.05 (± 7.2
km)
|
Longitude |
179.10 (± 8.1
km)
|
Depth |
18 km (± 15 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
30 |
Used Station Count |
25 |
Standard Error |
0.96 (s) |
Azimuthal Gap |
300.44 (degrees) |
Minimum Distance |
0.82 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
5.8 |
|
MLv |
5.8 (± 0.3) |
117 |
ML |
6.0 (± 0.1) |
18 |
M |
5.8 |
117 |
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).