Download Event Information
Origin
PublicID |
2016p490805 |
UTC Time |
2016-06-30T14:17:58Z |
Latitude |
-22.62 (± 10.1
km)
|
Longitude |
-178.40 (± 41.3
km)
|
Depth |
566 km (± 14 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
28 |
Used Station Count |
17 |
Standard Error |
1.91 (s) |
Azimuthal Gap |
329.00 (degrees) |
Minimum Distance |
6.63 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
5.4 |
|
MLv |
5.4 |
1 |
M |
5.4 |
1 |
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).