Download Event Information
Origin
PublicID |
2019p416757 |
UTC Time |
2019-06-04T04:39:17Z |
Latitude |
29.06 (± 0.0
km)
|
Longitude |
139.29 (± 0.0
km)
|
Depth |
430 km (± 0 km) |
Depth Type |
free |
Earth Model |
|
Used Phase Count |
0 |
Used Station Count |
0 |
Standard Error |
1.02 (s) |
Azimuthal Gap |
0.00 (degrees) |
Minimum Distance |
0.00 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (mB) |
6.0 (± 0.1) |
|
mB |
6.0 (± 0.1) |
54 |
Mw(mB) |
5.7 (± 0.4) |
72 |
M |
5.7 |
72 |
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).