Download Event Information
Origin
PublicID |
2019p843899 |
UTC Time |
2019-11-09T05:49:52Z |
Latitude |
-38.91 (± 2.6
km)
|
Longitude |
176.23 (± 2.5
km)
|
Depth |
63 km (± 4 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
90 |
Used Station Count |
77 |
Standard Error |
0.33 (s) |
Azimuthal Gap |
26.54 (degrees) |
Minimum Distance |
0.11 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
3.5 |
|
ML |
3.6 (± 0.3) |
59 |
MLv |
3.5 (± 0.2) |
73 |
M |
3.5 |
73 |
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).