Download Event Information
Origin
PublicID |
2014p496830 |
UTC Time |
2014-07-03T19:50:07Z |
Latitude |
-30.57 (± 1.9
km)
|
Longitude |
-176.47 (± 6.0
km)
|
Depth |
33 km (± 0 km) |
Depth Type |
operator assigned |
Earth Model |
iasp91 |
Used Phase Count |
51 |
Used Station Count |
40 |
Standard Error |
2.17 (s) |
Azimuthal Gap |
250.93 (degrees) |
Minimum Distance |
1.81 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
6.2 |
|
MLv |
7.1 (± 0.2) |
6 |
ML |
6.5 (± 0.3) |
6 |
mB |
6.3 (± 0.1) |
30 |
Mw(mB) |
6.0 (± 0.4) |
30 |
M |
6.2 |
30 |
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).