The shock that struck the Wairarapa Region on 2 August was nearly as severe as the disastrous 24 June earthquake 5 weeks earlier.
| PublicID | 1584854 |
| UTC Time | 1942-08-01T12:34:08Z |
| Latitude | -41.01 (± 0.0 km) |
| Longitude | 175.52 (± 0.1 km) |
| Depth | 40 km (± 0 km) |
| Depth Type | operator assigned |
| Earth Model | nz1dr |
| Used Phase Count | 6 |
| Used Station Count | 5 |
| Standard Error | 0.46 (s) |
| Azimuthal Gap | 182.00 (degrees) |
| Minimum Distance | 0.63 (degrees) |
| Type | Magnitude | Station Count |
| Preferred (Mw) | 6.8 | |
| Mw | 6.8 | 0 |
| MS | 7.0 | 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.