Download Event Information
Origin
PublicID |
2024p823801 |
UTC Time |
2024-10-31T19:21:19Z |
Latitude |
-37.77 (± 2.5
km)
|
Longitude |
176.84 (± 1.7
km)
|
Depth |
5 km (± 0 km) |
Depth Type |
operator assigned |
Earth Model |
iasp91 |
Used Phase Count |
40 |
Used Station Count |
26 |
Standard Error |
0.64 (s) |
Azimuthal Gap |
121.77 (degrees) |
Minimum Distance |
0.13 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (MLv) |
3.4 (± 0.3) |
|
ML |
3.6 (± 0.4) |
18 |
MLv |
3.4 (± 0.3) |
68 |
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).