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Origin
PublicID |
2018p041919 |
UTC Time |
2018-01-16T12:13:01Z |
Latitude |
-22.99 (± 12.7
km)
|
Longitude |
-179.55 (± 63.3
km)
|
Depth |
663 km (± 34 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
20 |
Used Station Count |
13 |
Standard Error |
1.76 (s) |
Azimuthal Gap |
329.46 (degrees) |
Minimum Distance |
6.41 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
3.6 |
|
mB |
4.4 (± 0.3) |
4 |
Mw(mB) |
3.6 (± 0.4) |
4 |
M |
3.6 |
4 |
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).