Download Event Information
Origin
PublicID |
2024p490161 |
UTC Time |
2024-06-30T08:35:15Z |
Latitude |
-27.69 (± 7.1
km)
|
Longitude |
-175.08 (± 10.5
km)
|
Depth |
33 km (± 0 km) |
Depth Type |
operator assigned |
Earth Model |
iasp91 |
Used Phase Count |
18 |
Used Station Count |
13 |
Standard Error |
4.30 (s) |
Azimuthal Gap |
154.03 (degrees) |
Minimum Distance |
2.95 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (mB) |
4.6 (± 0.2) |
|
MLv |
5.6 |
1 |
ML |
5.6 |
1 |
mB |
4.6 (± 0.2) |
6 |
Mw(mB) |
3.8 (± 0.4) |
6 |
M |
4.9 |
6 |
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).