PublicID | 1567345 |
UTC Time | 1985-07-19T14:33:59Z |
Latitude | -38.77 (± 0.0 km) |
Longitude | 177.42 (± 0.1 km) |
Depth | 41 km (± 13 km) |
Depth Type | free |
Earth Model | nz1d |
Used Phase Count | 17 |
Used Station Count | 17 |
Standard Error | 1.30 (s) |
Azimuthal Gap | 128.00 (degrees) |
Minimum Distance | 0.22 (degrees) |
Type | Magnitude | Station Count |
Preferred (Mw) | 5.9 | |
ML | 5.7 (± 0.2) | 2 |
Mw | 5.9 | 0 |
MS | 5.9 | 0 |
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.