Download Event Information
Origin
PublicID |
2022p036845 |
UTC Time |
2022-01-14T15:08:59Z |
Latitude |
-28.94 (± 8.0
km)
|
Longitude |
-175.99 (± 9.4
km)
|
Depth |
33 km (± 0 km) |
Depth Type |
operator assigned |
Earth Model |
iasp91 |
Used Phase Count |
26 |
Used Station Count |
21 |
Standard Error |
1.64 (s) |
Azimuthal Gap |
306.53 (degrees) |
Minimum Distance |
1.71 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (mB) |
4.9 (± 0.1) |
|
mB |
4.9 (± 0.1) |
22 |
Mw(mB) |
4.2 (± 0.4) |
7 |
ML |
5.4 |
1 |
MLv |
5.3 |
1 |
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).