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Origin
PublicID |
2016p687114 |
UTC Time |
2016-09-11T05:34:36Z |
Latitude |
-37.02 (± 4.1
km)
|
Longitude |
178.82 (± 8.2
km)
|
Depth |
16 km (± 7 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
43 |
Used Station Count |
28 |
Standard Error |
1.06 (s) |
Azimuthal Gap |
282.95 (degrees) |
Minimum Distance |
0.68 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
2.9 |
|
MLv |
2.9 (± 0.1) |
15 |
ML |
3.2 (± 0.2) |
22 |
M |
2.9 |
15 |
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).