Download Event Information
Origin
PublicID |
2019p455575 |
UTC Time |
2019-06-18T13:29:26Z |
Latitude |
-35.42 (± 20.6
km)
|
Longitude |
178.85 (± 25.8
km)
|
Depth |
173 km (± 30 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
20 |
Used Station Count |
10 |
Standard Error |
0.33 (s) |
Azimuthal Gap |
342.50 (degrees) |
Minimum Distance |
2.18 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
3.0 |
|
MLv |
3.0 (± 0.3) |
5 |
ML |
3.2 (± 0.3) |
2 |
M |
3.0 |
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).