Download Event Information
Origin
PublicID |
2024p293147 |
UTC Time |
2024-04-18T11:09:04Z |
Latitude |
-35.86 (± 3.7
km)
|
Longitude |
179.64 (± 4.5
km)
|
Depth |
65 km (± 12 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
55 |
Used Station Count |
39 |
Standard Error |
1.39 (s) |
Azimuthal Gap |
142.98 (degrees) |
Minimum Distance |
2.00 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
5.7 |
|
mB |
6.1 (± 0.1) |
5 |
ML |
5.1 (± 0.3) |
24 |
MLv |
5.4 (± 0.2) |
48 |
Mw(mB) |
5.7 (± 0.4) |
28 |
M |
5.7 |
48 |
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).