Download Event Information
Origin
PublicID |
2020p263458 |
UTC Time |
2020-04-07T11:29:06Z |
Latitude |
-32.07 (± 6.0
km)
|
Longitude |
-178.89 (± 10.8
km)
|
Depth |
441 km (± 9 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
44 |
Used Station Count |
37 |
Standard Error |
11.88 (s) |
Azimuthal Gap |
165.43 (degrees) |
Minimum Distance |
2.92 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (MLv) |
5.8 (± 0.3) |
|
ML |
5.7 (± 0.2) |
17 |
MLv |
5.8 (± 0.3) |
28 |
mB |
5.6 (± 0.4) |
24 |
Mw(mB) |
5.0 (± 0.4) |
24 |
M |
5.2 |
28 |
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).