Download Event Information
Origin
PublicID |
2015p506034 |
UTC Time |
2015-07-07T05:35:15Z |
Latitude |
-35.63 (± 5.7
km)
|
Longitude |
-178.95 (± 6.1
km)
|
Depth |
33 km (± 0 km) |
Depth Type |
operator assigned |
Earth Model |
iasp91 |
Used Phase Count |
71 |
Used Station Count |
61 |
Standard Error |
0.90 (s) |
Azimuthal Gap |
272.40 (degrees) |
Minimum Distance |
2.93 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
5.7 |
|
MLv |
5.8 (± 0.2) |
46 |
ML |
6.0 (± 0.2) |
46 |
mB |
6.0 (± 0.2) |
12 |
Mw(mB) |
5.6 (± 0.4) |
12 |
M |
5.7 |
46 |
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).