Download Event Information
Origin
PublicID |
2018p886455 |
UTC Time |
2018-11-24T23:42:38Z |
Latitude |
-47.97 (± 8.1
km)
|
Longitude |
165.44 (± 10.1
km)
|
Depth |
12 km (± 0 km) |
Depth Type |
operator assigned |
Earth Model |
iasp91 |
Used Phase Count |
20 |
Used Station Count |
13 |
Standard Error |
1.33 (s) |
Azimuthal Gap |
176.07 (degrees) |
Minimum Distance |
2.00 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
5.8 |
|
MLv |
5.8 (± 0.2) |
9 |
ML |
6.1 (± 0.1) |
9 |
mB |
5.9 (± 0.0) |
2 |
Mw(mB) |
5.5 (± 0.4) |
2 |
M |
5.8 |
9 |
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).