PublicID | 2016p719587 |
UTC Time | 2016-09-23T05:56:27Z |
Latitude | -37.37 (± 3.6 km) |
Longitude | 179.00 (± 5.0 km) |
Depth | 13 km (± 4 km) |
Depth Type | free |
Earth Model | iasp91 |
Used Phase Count | 78 |
Used Station Count | 67 |
Standard Error | 0.67 (s) |
Azimuthal Gap | 219.10 (degrees) |
Minimum Distance | 0.58 (degrees) |
Type | Magnitude | Station Count |
Preferred (M) | 5.1 | |
MLv | 5.1 (± 0.2) | 51 |
ML | 5.3 (± 0.2) | 50 |
mB | 5.9 | 1 |
Mw(mB) | 5.5 (± 0.4) | 1 |
M | 5.1 | 51 |
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.