Download Event Information
Origin
PublicID |
2020p063316 |
UTC Time |
2020-01-24T10:14:47Z |
Latitude |
-35.67 (± 12.4
km)
|
Longitude |
-179.51 (± 13.6
km)
|
Depth |
155 km (± 22 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
29 |
Used Station Count |
20 |
Standard Error |
0.79 (s) |
Azimuthal Gap |
299.80 (degrees) |
Minimum Distance |
2.58 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
3.3 |
|
MLv |
3.3 (± 0.2) |
8 |
ML |
3.3 (± 0.2) |
13 |
M |
3.3 |
8 |
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).