Download Event Information
Origin
PublicID |
2014p818029 |
UTC Time |
2014-10-30T16:06:08Z |
Latitude |
-41.34 (± 1.3
km)
|
Longitude |
172.45 (± 1.9
km)
|
Depth |
7 km (± 2 km) |
Depth Type |
free |
Earth Model |
nz3drx |
Used Phase Count |
36 |
Used Station Count |
22 |
Standard Error |
0.63 (s) |
Azimuthal Gap |
135.74 (degrees) |
Minimum Distance |
0.52 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
3.2 |
|
MLv |
3.2 (± 0.2) |
15 |
ML |
3.4 (± 0.1) |
15 |
M |
3.2 |
15 |
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).