PublicID | 2016p861190 |
UTC Time | 2016-11-14T15:22:18Z |
Latitude | -41.69 (± 1.9 km) |
Longitude | 174.16 (± 1.4 km) |
Depth | 12 km (± 0 km) |
Depth Type | operator assigned |
Earth Model | iasp91 |
Used Phase Count | 72 |
Used Station Count | 51 |
Standard Error | 0.92 (s) |
Azimuthal Gap | 65.20 (degrees) |
Minimum Distance | 0.07 (degrees) |
Type | Magnitude | Station Count |
Preferred (M) | 4.6 | |
MLv | 4.6 (± 0.2) | 87 |
ML | 5.0 (± 0.2) | 15 |
M | 4.6 | 87 |
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.