Download Event Information
Origin
PublicID |
2019p762378 |
UTC Time |
2019-10-10T01:54:20Z |
Latitude |
-35.03 (± 7.7
km)
|
Longitude |
178.32 (± 12.4
km)
|
Depth |
275 km (± 11 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
39 |
Used Station Count |
25 |
Standard Error |
0.88 (s) |
Azimuthal Gap |
308.25 (degrees) |
Minimum Distance |
2.72 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
3.7 |
|
MLv |
3.7 (± 0.2) |
12 |
ML |
4.0 |
1 |
mB |
4.1 (± 0.2) |
2 |
Mw(mB) |
3.1 (± 0.4) |
2 |
M |
3.7 |
12 |
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).