Download Event Information
Origin
PublicID |
2020p598149 |
UTC Time |
2020-08-09T07:34:28Z |
Latitude |
-38.64 (± 6.4
km)
|
Longitude |
175.87 (± 11.3
km)
|
Depth |
153 km (± 13 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
21 |
Used Station Count |
15 |
Standard Error |
0.75 (s) |
Azimuthal Gap |
130.06 (degrees) |
Minimum Distance |
0.77 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
2.0 |
|
MLv |
2.0 (± 0.5) |
5 |
ML |
2.4 (± 0.4) |
8 |
M |
2.0 |
5 |
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).