PublicID | 2018p678177 |
UTC Time | 2018-09-08T22:12:52Z |
Latitude | -45.09 (± 17.1 km) |
Longitude | 167.67 (± 23.7 km) |
Depth | 81 km (± 32 km) |
Depth Type | free |
Earth Model | nz3drx |
Used Phase Count | 13 |
Used Station Count | 13 |
Standard Error | 0.71 (s) |
Azimuthal Gap | 159.29 (degrees) |
Minimum Distance | 0.44 (degrees) |
Type | Magnitude | Station Count |
Preferred (M) | 2.5 | |
MLv | 2.5 (± 0.4) | 4 |
M | 2.5 | 4 |
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.