Download Event Information
Origin
PublicID |
2023p392040 |
UTC Time |
2023-05-26T01:15:56Z |
Latitude |
-24.60 (± 68.4
km)
|
Longitude |
-173.45 (± 94.7
km)
|
Depth |
447 km (± 27 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
20 |
Used Station Count |
20 |
Standard Error |
1.07 (s) |
Azimuthal Gap |
345.73 (degrees) |
Minimum Distance |
6.11 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (mB) |
4.9 (± 0.8) |
|
MLv |
6.3 (± 0.0) |
2 |
mB |
4.9 (± 0.8) |
7 |
Mw(mB) |
4.2 (± 0.8) |
6 |
M |
5.5 |
6 |
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).