Download Event Information
Origin
PublicID |
2022p126620 |
UTC Time |
2022-02-16T20:21:06Z |
Latitude |
-23.77 (± 0.0
km)
|
Longitude |
-179.98 (± 0.0
km)
|
Depth |
535 km (± 0 km) |
Depth Type |
free |
Earth Model |
|
Used Phase Count |
0 |
Used Station Count |
0 |
Standard Error |
2.28 (s) |
Azimuthal Gap |
0.00 (degrees) |
Minimum Distance |
0.00 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (mB) |
6.1 (± 0.1) |
|
MLv |
7.0 (± 0.4) |
2 |
mB |
6.1 (± 0.1) |
21 |
Mw(mB) |
5.7 (± 0.4) |
89 |
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).