Download Event Information
Origin
PublicID |
2021p885265 |
UTC Time |
2021-11-24T13:09:21Z |
Latitude |
-38.01 (± 21.5
km)
|
Longitude |
176.35 (± 17.1
km)
|
Depth |
151 km (± 11 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
16 |
Used Station Count |
11 |
Standard Error |
0.40 (s) |
Azimuthal Gap |
255.48 (degrees) |
Minimum Distance |
0.57 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
2.0 |
|
MLv |
2.0 (± 0.3) |
3 |
M |
2.0 |
3 |
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).