Earthquake 20170420-1

Earthquake 20170420-1
2017-04-20 03:19:12.390 256.90 km 5.13 mb
19.5298°S, 175.3724°W
South Pacfic Ocean; 39 km from Hokula, Vava‘u, Tonga
232 km NW of Nuku'alofa, Tonga
Time Error: 0 s Num. Stations: 3
Time RMS: 0 s Num. Phases: 3
Depth Error: 49.80 km Max. Intensity (MMI):
Azimuth Gap: 230° Effects Type: Seismic
Analysis Type: Automatic
 
UNCHECKED, FULLY AUTOMATIC LOCATION
Magnitudes
Preferred Magnitude Stations Error Author Action
Emblem favorite 5.13 mb NEIC Action show
3.10 M 10 1.0 NEIC Action show
5.10 mb 1 0.6 NEIC Action show
 
Origin Details
Ellipse Major: 121.40 km Fixed Depth: yes
Ellipse Minor: 23.70 km Fixed Phase: yes
Ellipse Strike: 159.0° Fixed Time: yes
Min. Distance: 6.48° Author: NEIC
Max. Distance: 36.05° Event Type: Earthquake
Fixed Location: yes External Event ID: HYDRA_RED@6459
Location Method: Inversion External Origin ID: HYDRA_RED@13077
 
Error Ellipse
Length Azimuth Dip Action
Maximum 292.10 km 340.00° 9.00° Action show
Intermediate 76.10 km 80.00° 47.00° Action show
Minimum 31.80 km 242.00° 41.00° Action show
 

None

Channel Time Amplitude Period/Duration Magnitude Event Distance Event Azimuth Action
IU.CTAO.00.BHZ 2017-04-20 03:25:51.859 40.6 0.60 s 5.10 mb 36.05° 262.4° Action show
Channel Phase Time Time Residual Direction Event Distance Event Azimuth Automatic? Defined By Action
II.MSVF.00.BHZ Pn 2017-04-20 03:20:46.759 0 s _ 6.48° 284.8° yes Time Action show
IU.AFI.00.BHZ Pn 2017-04-20 03:20:47.759 0 s _ 6.56° 32.2° yes Time Action show
IU.CTAO.00.BHZ P 2017-04-20 03:25:49.910 0 s _ 36.05° 262.4° yes Time Action show

Ground Motion

None

Shake Maps

None