Phase one of our updated website is now live. Explore GeoNet beta and let us know what you think. Read this news article to find out what's happening.
| PublicID | 2026p678894 |
| UTC Time | 2026-09-09T04:33:14Z |
| Latitude | -31.54 (± 38.3 km) |
| Longitude | -178.36 (± 39.3 km) |
| Depth | 592 km (± 87 km) |
| Depth Type | free |
| Earth Model | iasp91 |
| Used Phase Count | 13 |
| Used Station Count | 9 |
| Standard Error | 1.02 (s) |
| Azimuthal Gap | 329.98 (degrees) |
| Minimum Distance | 6.96 (degrees) |
| Type | Magnitude | Station Count |
| Preferred (Mw(mB)) | 4.4 (± 0.4) | |
| MLv | 4.9 (± 0.9) | 3 |
| ML | 4.5 (± 0.3) | 7 |
| mB | 5.0 (± 0.4) | 19 |
| Mw(mB) | 4.4 (± 0.4) | 19 |
| M | 4.5 | 19 |
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.