| PublicID | 2020p458203 |
| UTC Time | 2020-06-18T12:49:49Z |
| Latitude | -33.46 (± 3.6 km) |
| Longitude | -177.44 (± 7.0 km) |
| Depth | 10 km (± 0 km) |
| Depth Type | operator assigned |
| Earth Model | iasp91 |
| Used Phase Count | 54 |
| Used Station Count | 43 |
| Standard Error | 2.05 (s) |
| Azimuthal Gap | 120.13 (degrees) |
| Minimum Distance | 4.21 (degrees) |
| Type | Magnitude | Station Count |
| Preferred (M) | 7.4 | |
| MLv | 7.7 (± 0.2) | 17 |
| ML | 7.8 (± 0.2) | 17 |
| mB | 7.3 (± 0.2) | 30 |
| Mw(mB) | 7.3 (± 0.4) | 30 |
| M | 7.4 | 30 |
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.