Download Event Information
Origin
PublicID |
2016p858891 |
UTC Time |
2016-11-13T18:58:08Z |
Latitude |
-41.21 (± 14.4
km)
|
Longitude |
174.77 (± 9.6
km)
|
Depth |
5 km (± 7 km) |
Depth Type |
free |
Earth Model |
nz3drx |
Used Phase Count |
32 |
Used Station Count |
32 |
Standard Error |
2.12 (s) |
Azimuthal Gap |
119.15 (degrees) |
Minimum Distance |
0.08 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
4.8 |
|
MLv |
4.8 (± 0.3) |
25 |
M |
4.8 |
25 |
ML |
4.8 (± 0.3) |
25 |
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).