This earthquake was felt most strongly in the Napier and Taradale regions.
| PublicID | 1561256 |
| UTC Time | 1980-10-05T15:32:50Z |
| Latitude | -39.72 (± 0.0 km) |
| Longitude | 176.87 (± 0.1 km) |
| Depth | 30 km (± 3 km) |
| Depth Type | free |
| Earth Model | nz1d |
| Used Phase Count | 17 |
| Used Station Count | 14 |
| Standard Error | 0.80 (s) |
| Azimuthal Gap | 162.00 (degrees) |
| Minimum Distance | 0.16 (degrees) |
| Type | Magnitude | Station Count |
| Preferred (Mw) | 5.7 | |
| ML | 5.6 (± 0.2) | 7 |
| Mw | 5.7 | 0 |
| MS | 5.6 | 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.
