Earthquake 20170226-1

2017-02-26 06:44:23.000 267.4 km 5.8 Mb
18.5244°S, 169.2507°E
Coral Sea
89 km NW of Alofi, Niue
Time Error: 0.74 s Depth Error: 24.5 km
Num. Stations: 21 Time RMS: 0.36 s
Num. Phases: 21 Azimuth Gap: 64°
Analysis Type: Manual Max. Intensity (MMI):
Effects Type:
 

MANUALLY REVISED LOCATION

Magnitudes

Preferred Magnitude Stations Error Author Action
5.9 Mb 5 1.0 NCMS System-search
5.5 Mwc 75 1.0 NCMS System-search
Emblem-favorite 5.8 Mb NCMS System-search

Origin Details

Ellipse Major:11.80 km Min. Distance:8.41° Fixed Depth:no
Ellipse Minor:8.40 km Max. Distance:146.41° Fixed Phase:no
Ellipse Strike:70.0° Fixed Location:no Fixed Time:no
Author:NCMS Location Method:Inversion Event Type:Earthquake
External Event ID:HYDRA_RED@21385 External Origin ID:HYDRA_RED@89025

Error Ellipse

Azimuth Dip Magnitude Action
Max 79° 56° 43.4 km System-search
Intermediate 186° 10° 20.4 km System-search
Min 283° 30° 14.5 km System-search
Type Traces % DC Misfit/Var. Red. Centroid Best Double Couple Moment Tensor Action
M0 Plane Strike Dip Rake Mrr Mrt Mrp Mtt Mtp Mpp
Ffffffff CMT 75 52% 1.24 2017-02-26 06:44:29.599
18.9274°S, 169.3203°E
250.0 km
3e+17 nt-m NP1
NP2
52.0
160.0
53.0
69.0
153.0
40.0
1.29e+17 5.6e+16 -8.51e+16 1.21e+17 -1.02e+17 -2.49e+17 System-search
Channel Time Amplitude Period/Duration Magnitude Event Distance Event Azimuth Action
IU.RAO.00.BHZ 2017-02-26 06:47:51.140 3e+04 0.60 s 6.5 Mb 15.85° 134.0° System-search
IU.TARA.00.BHZ 2017-02-26 06:48:36.890 2e+04 1.00 s 6.3 Mb 20.10° 10.0° System-search
II.KAPI.00.BHZ 2017-02-26 06:52:51.859 2e+03 1.10 s 5.2 Mb 50.16° 279.0° System-search
IU.POHA.00.BHZ 2017-02-26 06:53:01.049 2e+04 2.40 s 6.2 Mb 51.44° 44.0° System-search
IU.ADK.00.BHZ 2017-02-26 06:55:13.019 5e+03 1.00 s 5.8 Mb 71.21° 9.0° System-search
IU.PET.00.BHZ 2017-02-26 06:55:16.480 4e+03 1.30 s 5.7 Mb 71.87° 353.0° System-search
II.RPN.00.BHZ 2017-02-26 06:55:31.680 3e+04 3.00 s 6.4 Mb 74.40° 113.0° System-search
IU.COR.00.BHZ 2017-02-26 06:56:41.910 2e+03 1.10 s 5.4 Mb 87.81° 41.0° System-search
IU.COLA.00.BHZ 2017-02-26 06:56:47.519 1e+03 1.00 s 5.4 Mb 89.37° 16.0° System-search
Channel Phase Time Time Residual Dir. Event Distance Event Azimuth Automatic? Defined By Action
II.MSVF.00.BHZ Pn 2017-02-26 06:46:21.710 0.20 s c 8.41° 86.0° yes Time System-search
IU.RAO.00.BHZ P 2017-02-26 06:47:51.140 0.10 s c 15.85° 134.0° yes Time System-search
IU.TARA.00.BHZ P 2017-02-26 06:48:36.890 0 s c 20.10° 10.0° yes Time System-search
II.KAPI.00.BHZ P 2017-02-26 06:52:51.859 0.10 s c 50.16° 279.0° yes Time System-search
IU.POHA.00.BHZ P 2017-02-26 06:53:01.049 -0.30 s 51.44° 44.0° no Time System-search
IU.ADK.00.BHZ P 2017-02-26 06:55:13.019 0.50 s 71.21° 9.0° no Time System-search
IU.PET.00.BHZ P 2017-02-26 06:55:16.480 0 s 71.87° 353.0° no Time System-search
II.RPN.00.BHZ P 2017-02-26 06:55:31.680 -0.30 s 74.40° 113.0° no Time System-search
IU.COR.00.BHZ P 2017-02-26 06:56:41.910 0.20 s 87.81° 41.0° no Time System-search
IU.COLA.00.BHZ P 2017-02-26 06:56:47.519 -1.20 s 89.37° 16.0° no Time System-search
IU.MAKZ.00.BHZ Pdif 2017-02-26 06:57:44.549 0.40 s 101.50° 315.0° no Time System-search
II.KURK.00.BHZ Pdif 2017-02-26 06:57:57.400 -0.10 s 104.54° 318.0° no Time System-search
AE.MSF.--.HHZ PKPdf 2017-02-26 07:02:38.099 -0.70 s 118.22° 289.0° no Time System-search
OM.ASH.--.HHZ PKPdf 2017-02-26 07:02:38.220 -0.60 s 118.21° 288.0° no Time System-search
DN.HAT.--.HHZ PKPdf 2017-02-26 07:02:38.269 -0.40 s 118.17° 288.0° no Time System-search
AE.MZR.--.HHZ PKPdf 2017-02-26 07:02:43.049 0.30 s 120.30° 286.0° no Time System-search
IU.GNI.00.BHZ PKPdf 2017-02-26 07:02:57.670 0.30 s 128.01° 306.0° no Time System-search
II.KIV.00.BHZ PKiKP 2017-02-26 07:02:59.990 0.50 s 128.85° 311.0° no Time System-search
IU.KMBO.00.BHZ PKiKP 2017-02-26 07:03:00.910 0 s 129.04° 252.0° no Time System-search
II.SHEL.00.BHZ PKPdf 2017-02-26 07:03:30.099 0.20 s 145.25° 188.0° no Time System-search
II.BFO.00.BHZ PKPbc 2017-02-26 07:03:32.569 -0.10 s 146.41° 336.0° no Time System-search

Shake Maps

None

Ground Motion

None

Event 20170226-1

Time: 2017-02-26 06:44:23.000
Position:18.5244°S, 169.2507°E
Place:Coral Sea
Major Place:89 km NW of Alofi, Niue
Depth:267.4 km
Magnitude:5.8 Mb