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Origin
PublicID |
2019p730201 |
UTC Time |
2019-09-28T04:08:03Z |
Latitude |
-24.07 (± 11.2
km)
|
Longitude |
-174.77 (± 17.2
km)
|
Depth |
297 km (± 7 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
37 |
Used Station Count |
27 |
Standard Error |
1.29 (s) |
Azimuthal Gap |
183.55 (degrees) |
Minimum Distance |
5.88 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
5.0 |
|
MLv |
6.2 (± 0.3) |
3 |
mB |
4.9 (± 0.4) |
10 |
Mw(mB) |
4.2 (± 0.4) |
10 |
M |
5.0 |
10 |
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).