Download Event Information
Origin
PublicID |
1546103 |
UTC Time |
1960-03-27T23:29:45Z |
Latitude |
-39.04 (± 0.3
km)
|
Longitude |
174.77 (± 0.5
km)
|
Depth |
209 km (± 35 km) |
Depth Type |
free |
Earth Model |
nz1d |
Used Phase Count |
7 |
Used Station Count |
6 |
Standard Error |
1.20 (s) |
Azimuthal Gap |
227.00 (degrees) |
Minimum Distance |
0.63 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (ML) |
6.5 |
|
ML |
6.5 |
0 |
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).