Download Event Information
Origin
PublicID |
2020p114530 |
UTC Time |
2020-02-12T08:59:26Z |
Latitude |
-26.02 (± 9.6
km)
|
Longitude |
-173.46 (± 15.8
km)
|
Depth |
101 km (± 22 km) |
Depth Type |
free |
Earth Model |
iasp91 |
Used Phase Count |
29 |
Used Station Count |
18 |
Standard Error |
1.78 (s) |
Azimuthal Gap |
181.50 (degrees) |
Minimum Distance |
5.10 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (mB) |
5.2 (± 0.4) |
|
ML |
6.1 |
1 |
MLv |
6.3 (± 0.7) |
2 |
mB |
5.2 (± 0.4) |
7 |
Mw(mB) |
4.5 (± 0.4) |
7 |
M |
5.5 |
7 |
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).