Download Event Information
Origin
PublicID |
2016p734190 |
UTC Time |
2016-09-28T15:36:34Z |
Latitude |
-37.34 (± 5.7
km)
|
Longitude |
178.84 (± 8.1
km)
|
Depth |
15 km (± 6 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
28 |
Used Station Count |
24 |
Standard Error |
0.69 (s) |
Azimuthal Gap |
273.69 (degrees) |
Minimum Distance |
0.48 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
2.8 |
|
MLv |
2.8 (± 0.1) |
11 |
ML |
3.1 (± 0.2) |
18 |
M |
2.8 |
11 |
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).