Download Event Information
Origin
PublicID |
2018p829286 |
UTC Time |
2018-11-03T20:03:45Z |
Latitude |
-39.10 (± 4.7
km)
|
Longitude |
-179.39 (± 4.0
km)
|
Depth |
33 km (± 0 km) |
Depth Type |
operator assigned |
Earth Model |
iasp91 |
Used Phase Count |
49 |
Used Station Count |
35 |
Standard Error |
1.46 (s) |
Azimuthal Gap |
149.13 (degrees) |
Minimum Distance |
1.94 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
5.3 |
|
MLv |
5.3 (± 0.2) |
22 |
ML |
5.6 (± 0.3) |
22 |
mB |
6.6 |
1 |
Mw(mB) |
6.4 (± 0.4) |
1 |
M |
5.3 |
22 |
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).