Download Event Information
Origin
PublicID |
2024p721076 |
UTC Time |
2024-09-23T19:08:46Z |
Latitude |
-32.99 (± 3.2
km)
|
Longitude |
-179.75 (± 5.0
km)
|
Depth |
184 km (± 6 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
43 |
Used Station Count |
30 |
Standard Error |
1.71 (s) |
Azimuthal Gap |
122.46 (degrees) |
Minimum Distance |
4.04 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (Mw(mB)) |
4.8 (± 0.4) |
|
mB |
5.4 (± 0.2) |
19 |
Mw(mB) |
4.8 (± 0.4) |
19 |
MLv |
5.6 (± 0.4) |
15 |
M |
5.0 |
19 |
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).