Download Event Information
Origin
PublicID |
2019p455868 |
UTC Time |
2019-06-18T16:05:12Z |
Latitude |
-31.28 (± 3.5
km)
|
Longitude |
-176.62 (± 15.8
km)
|
Depth |
33 km (± 0 km) |
Depth Type |
operator assigned |
Earth Model |
iasp91 |
Used Phase Count |
26 |
Used Station Count |
20 |
Standard Error |
1.33 (s) |
Azimuthal Gap |
240.04 (degrees) |
Minimum Distance |
2.30 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (mB) |
6.1 (± 0.1) |
|
MLv |
6.4 (± 0.2) |
11 |
ML |
6.7 (± 0.2) |
10 |
mB |
6.1 (± 0.1) |
13 |
Mw(mB) |
5.8 (± 0.4) |
13 |
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).