PublicID | 2019p852971 |
UTC Time | 2019-11-12T14:22:35Z |
Latitude | -32.20 (± 7.2 km) |
Longitude | -179.27 (± 18.3 km) |
Depth | 171 km (± 22 km) |
Depth Type | free |
Earth Model | iasp91 |
Used Phase Count | 24 |
Used Station Count | 14 |
Standard Error | 2.02 (s) |
Azimuthal Gap | 176.03 (degrees) |
Minimum Distance | 3.15 (degrees) |
Type | Magnitude | Station Count |
Preferred (M) | 4.3 | |
MLv | 4.6 (± 0.1) | 6 |
ML | 4.6 (± 0.2) | 2 |
mB | 4.7 (± 0.2) | 6 |
Mw(mB) | 3.9 (± 0.4) | 6 |
M | 4.3 | 6 |
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).
Map showing stations with picks used to locate the earthquake. Stations with picks that have a zero weight in the solution are shown as small grey circles. Those with a higher weight are shown as larger circles. The quake is shown by the largest circle.