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Origin
PublicID |
2023p165394 |
UTC Time |
2023-03-03T04:37:32Z |
Latitude |
-17.69 (± 34.4
km)
|
Longitude |
-172.41 (± 74.4
km)
|
Depth |
158 km (± 60 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
12 |
Used Station Count |
12 |
Standard Error |
0.62 (s) |
Azimuthal Gap |
259.39 (degrees) |
Minimum Distance |
6.44 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (mB) |
4.8 (± 0.3) |
|
M |
5.0 |
1 |
Mw(mB) |
4.1 (± 0.4) |
0 |
mB |
4.8 (± 0.3) |
4 |
MLv |
5.0 |
1 |
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).