Download Event Information
Origin
PublicID |
2020p525251 |
UTC Time |
2020-07-13T08:13:23Z |
Latitude |
-33.49 (± 5.5
km)
|
Longitude |
-177.71 (± 10.8
km)
|
Depth |
12 km (± 0 km) |
Depth Type |
operator assigned |
Earth Model |
iasp91 |
Used Phase Count |
36 |
Used Station Count |
24 |
Standard Error |
1.63 (s) |
Azimuthal Gap |
184.63 (degrees) |
Minimum Distance |
4.24 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (mB) |
5.6 (± 0.1) |
|
ML |
5.6 (± 0.3) |
15 |
MLv |
5.6 (± 0.2) |
15 |
mB |
5.6 (± 0.1) |
12 |
Mw(mB) |
5.0 (± 0.4) |
12 |
M |
5.2 |
15 |
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).