Download Event Information
Origin
PublicID |
2017p466752 |
UTC Time |
2017-06-22T16:45:34Z |
Latitude |
-43.03 (± 15.0
km)
|
Longitude |
171.42 (± 13.6
km)
|
Depth |
10 km (± 28 km) |
Depth Type |
free |
Earth Model |
nz3drx |
Used Phase Count |
12 |
Used Station Count |
12 |
Standard Error |
0.52 (s) |
Azimuthal Gap |
98.47 (degrees) |
Minimum Distance |
0.30 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
1.6 |
|
ML |
2.5 (± 0.5) |
7 |
MLv |
1.6 |
1 |
M |
1.6 |
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).