Download Event Information
Origin
PublicID |
2016p850685 |
UTC Time |
2016-11-10T18:05:14Z |
Latitude |
-40.67 (± 4.6
km)
|
Longitude |
174.62 (± 5.3
km)
|
Depth |
42 km (± 10 km) |
Depth Type |
free |
Earth Model |
nz3drx |
Used Phase Count |
20 |
Used Station Count |
14 |
Standard Error |
0.37 (s) |
Azimuthal Gap |
121.77 (degrees) |
Minimum Distance |
0.29 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
3.9 |
|
MLv |
3.9 (± 0.1) |
12 |
ML |
4.1 (± 0.1) |
12 |
M |
3.9 |
12 |
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).