Download Event Information
Origin
PublicID |
2016p301632 |
UTC Time |
2016-04-21T14:29:33Z |
Latitude |
-44.67 (± 6.1
km)
|
Longitude |
168.23 (± 11.1
km)
|
Depth |
49 km (± 14 km) |
Depth Type |
free |
Earth Model |
nz3drx |
Used Phase Count |
35 |
Used Station Count |
33 |
Standard Error |
0.77 (s) |
Azimuthal Gap |
122.96 (degrees) |
Minimum Distance |
0.22 (degrees) |
Magnitudes
Type |
Magnitude |
Station Count |
Preferred (M) |
3.2 |
|
MLv |
3.2 (± 0.3) |
13 |
ML |
3.4 (± 0.3) |
25 |
mB |
4.7 |
1 |
Mw(mB) |
3.9 (± 0.4) |
1 |
M |
3.2 |
13 |
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).