Earthquake 20170502-1

2017-05-02 15:10:22.950 8.9 km 5.4 Mwp
11.7679°S, 14.0263°W
South Atlantic Ocean
1008 km NW of Jamestown, Saint Helena
Time Error: 0.84 s Depth Error: 185.9 km
Num. Stations: 20 Time RMS: 0.41 s
Num. Phases: 20 Azimuth Gap: 168°
Analysis Type: Manual Max. Intensity (MMI):
Effects Type:
 

MANUALLY REVISED LOCATION

Magnitudes

Preferred Magnitude Stations Error Author Action
Emblem-favorite 5.4 Mwp NCMS System-search

Origin Details

Ellipse Major:23.90 km Min. Distance:31.31° Fixed Depth:no
Ellipse Minor:11.90 km Max. Distance:94.27° Fixed Phase:no
Ellipse Strike:181.0° Fixed Location:no Fixed Time:no
Author:NCMS Location Method:Inversion Event Type:Earthquake
External Event ID:HYDRA_RED@23622 External Origin ID:HYDRA_RED@99637

Error Ellipse

Azimuth Dip Magnitude Action
Max 171° 82° 284.8 km System-search
Intermediate 17° 41.3 km System-search
Min 287° 25.7 km System-search

None

None

Channel Phase Time Time Residual Dir. Event Distance Event Azimuth Automatic? Defined By Action
IU.TSUM.10.BHZ P 2017-05-02 15:16:43.190 -1.00 s c 31.34° 107.0° yes Time System-search
IU.LSZ.00.BHZ P 2017-05-02 15:18:07.910 -0.40 s c 41.18° 99.0° yes Time System-search
IU.KMBO.00.BHZ P 2017-05-02 15:19:33.210 -0.10 s c 52.00° 82.0° yes Time System-search
GE.EIL.--.BHZ P 2017-05-02 15:20:47.940 -0.30 s c 62.70° 47.0° yes Time System-search
II.BFO.00.BHZ P 2017-05-02 15:20:49.410 -1.20 s c 63.07° 16.0° yes Time System-search
IU.OTAV.00.BHZ P 2017-05-02 15:21:04.910 -0.10 s c 65.11° 275.0° yes Time System-search
GO.AKH.--.HHZ P 2017-05-02 15:22:02.109 -2.10 s c 74.86° 41.0° yes Time System-search
AE.MZR.--.HHZ P 2017-05-02 15:22:03.269 0.50 s c 74.62° 62.0° yes Time System-search
II.KIV.00.BHZ P 2017-05-02 15:22:08.359 -0.50 s c 75.69° 38.0° yes Time System-search
IU.GNI.00.BHZ P 2017-05-02 15:22:11.210 6.00 s c 75.04° 42.0° yes Time System-search
DN.FAQ.--.HHZ P 2017-05-02 15:22:16.680 0.10 s c 77.03° 61.0° yes Time System-search
AE.ALN.--.HHZ P 2017-05-02 15:22:16.690 0.60 s c 76.94° 61.0° yes Time System-search
DN.NAZ.--.HHZ P 2017-05-02 15:22:17.180 -0.20 s c 77.17° 60.0° yes Time System-search
OM.ASH.--.HHZ P 2017-05-02 15:22:18.589 -0.20 s c 77.41° 61.0° yes Time System-search
II.UOSS.10.BHZ P 2017-05-02 15:22:18.710 -1.20 s c 77.62° 61.0° yes Time System-search
DN.HAT.--.HHZ P 2017-05-02 15:22:20.539 1.20 s c 77.52° 61.0° yes Time System-search
AE.SHM.--.HHZ P 2017-05-02 15:22:20.869 -0.40 s c 77.88° 59.0° yes Time System-search
OM.SOH.--.HHZ P 2017-05-02 15:22:20.910 0.90 s c 77.64° 61.0° yes Time System-search
OM.BAN.--.HHZ P 2017-05-02 15:22:21.779 -0.40 s c 78.02° 60.0° yes Time System-search
II.NIL.00.BHZ P 2017-05-02 15:23:43.009 0 s c 94.27° 56.0° yes Time System-search

Shake Maps

None

Ground Motion

None

Event 20170502-1

Time: 2017-05-02 15:10:22.950
Position:11.7679°S, 14.0263°W
Place:South Atlantic Ocean
Major Place:1008 km NW of Jamestown, Saint Helena
Depth:8.9 km
Magnitude:5.4 Mwp