Download Event Information
Origin
PublicID |
2014p804519 |
UTC Time |
2014-10-25T16:07:49Z |
Latitude |
-39.63 (± 2.7
km)
|
Longitude |
174.88 (± 3.9
km)
|
Depth |
135 km (± 7 km) |
Depth Type |
free |
Earth Model |
nz3drx |
Used Phase Count |
26 |
Used Station Count |
26 |
Standard Error |
0.64 (s) |
Azimuthal Gap |
58.50 (degrees) |
Minimum Distance |
0.15 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
2.6 |
|
MLv |
2.6 (± 0.6) |
17 |
mB |
3.8 |
1 |
Mw(mB) |
2.8 (± 0.4) |
1 |
M |
2.6 |
17 |
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).