Earthquake 20170922-6

2017-09-22 23:49:30.080 29.7 km 5.6 mb
31.4029°N, 140.8608°E
North Pacific Ocean
485 km S of Tokyo, Japan
Time Error: 0.70 s Depth Error: 16.2 km
Num. Stations: 36 Time RMS: 0.34 s
Num. Phases: 36 Azimuth Gap: 157°
Analysis Type: Manual Max. Intensity (MMI):
Effects Type: Seismic
 

MANUALLY REVIEWED LOCATION

Magnitudes

Preferred Magnitude Stations Error Author Action
5.9 mB_BB 16 0.20 NCMS System-search
5.4 Ms_BB 4 0.20 NCMS System-search
Emblem-favorite 5.6 mb 0 0 NCMS System-search
5.6 M 0 0 NCMS System-search
5.3 Mwb 25 0.10 NCMS System-search
5.7 Mwp 9 0.10 NCMS System-search
5.6 mb 33 0.10 NCMS System-search
5.6 M 59 0.20 NCMS System-search

Origin Details

Ellipse Major:17.20 km Min. Distance:10.75° Fixed Depth:no
Ellipse Minor:9.20 km Max. Distance:153.07° Fixed Phase:no
Ellipse Strike:154.0° Fixed Location:no Fixed Time:no
Author:NCMS Location Method:Inversion Event Type:Suspected Earthquake
External Event ID:HYDRA_RED@18559 External Origin ID:HYDRA_RED@37128

Error Ellipse

Azimuth Dip Magnitude Action
Max 151° 15° 41.3 km System-search
Intermediate 45° 46° 27.3 km System-search
Min 255° 39° 15.6 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 MT 25 82% 0.68 33.0 km 1e+17 nt-m NP1
NP2
354.0
100.0
66.0
59.0
145.0
28.0
4.98e+16 4.5e+16 5.89e+16 -2.01e+16 9.66e+16 -2.97e+16 System-search
Channel Time Amplitude Period/Duration Magnitude Event Distance Event Azimuth Action
IU.PET.00.BHZ 2017-09-22 23:55:09.440 126.8 1.60 s 5.3 mb 25.17° 25.7° System-search
IU.PET.00.BHZ 2017-09-22 23:55:36.640 792.2 3.50 s 5.5 mB_BB 25.17° 25.7° System-search
II.ERM.00.BHZ 2017-09-22 23:57:27.583 1e+03 17.80 s 4.4 Ms_BB 10.75° 9.2° System-search
IU.MAKZ.00.BHZ 2017-09-22 23:58:00.634 47.6 0.75 s 5.6 mb 47.13° 306.7° System-search
IU.MAKZ.00.BHZ 2017-09-22 23:58:01.759 616.2 1.15 s 5.8 mB_BB 47.13° 306.7° System-search
II.KURK.00.BHZ 2017-09-22 23:58:16.369 2e+03 0.90 s 6.3 mB_BB 49.20° 312.1° System-search
II.KURK.00.BHZ 2017-09-22 23:58:16.859 261.8 1.00 s 6.2 mb 49.20° 312.1° System-search
IU.MAKZ.00.BHZ 2017-09-22 23:58:22.210 2e+03 22.80 s 5.5 Mwp 47.13° 306.7° System-search
II.KURK.00.BHZ 2017-09-22 23:58:37.309 2e+03 22.80 s 5.5 Mwp 49.20° 312.1° System-search
II.AAK.00.BHZ 2017-09-22 23:58:45.809 79.8 0.80 s 5.7 mb 52.92° 302.2° System-search
II.BRVK.00.BHZ 2017-09-22 23:58:53.559 796.6 0.80 s 5.9 mB_BB 54.20° 315.5° System-search
II.BRVK.00.BHZ 2017-09-22 23:58:54.509 93.2 0.80 s 5.9 mb 54.20° 315.5° System-search
IU.COLA.00.BHZ 2017-09-22 23:59:08.589 6.3 0.80 s 4.7 mb 54.12° 29.9° System-search
IU.KBL.--.BHZ 2017-09-22 23:59:29.615 33.9 0.90 s 5.5 mb 59.14° 294.1° System-search
IU.KBL.--.BHZ 2017-09-22 23:59:29.664 272.6 0.95 s 5.5 mB_BB 59.14° 294.1° System-search
II.BRVK.00.BHZ 2017-09-22 23:59:40.710 6e+03 47.95 s 5.9 Mwp 54.20° 315.5° System-search
IU.KEV.00.BHZ 2017-09-23 00:00:31.009 54.3 1.00 s 5.6 mb 68.55° 340.0° System-search
II.OBN.00.BHZ 2017-09-23 00:00:53.500 1e+03 1.20 s 6.0 mB_BB 72.36° 324.3° System-search
II.OBN.00.BHZ 2017-09-23 00:00:54.000 114.2 1.00 s 5.8 mb 72.36° 324.3° System-search
OM.BID.--.HHZ 2017-09-23 00:00:54.650 76.3 1.34 s 5.5 mb 72.24° 287.2° System-search
II.OBN.00.BHZ 2017-09-23 00:00:56.450 709.6 3.75 s 5.3 Mwp 72.36° 324.3° System-search
AE.SHM.--.HHZ 2017-09-23 00:00:57.009 1e+03 0.90 s 6.1 mB_BB 72.75° 290.5° System-search
AE.SHM.--.HHZ 2017-09-23 00:00:57.460 144.9 0.92 s 6.0 mb 72.75° 290.5° System-search
AE.MSF.--.HHZ 2017-09-23 00:00:59.289 68.9 1.06 s 5.6 mb 73.00° 289.7° System-search
OM.MDH.--.HHZ 2017-09-23 00:01:00.650 6.3 0.96 s 4.6 mb 72.92° 289.6° System-search
DN.HAT.--.HHZ 2017-09-23 00:01:00.720 35.3 1.00 s 5.3 mb 73.27° 289.2° System-search
OM.ASH.--.HHZ 2017-09-23 00:01:00.960 218.3 1.20 s 5.3 mB_BB 73.39° 289.1° System-search
OM.ASH.--.HHZ 2017-09-23 00:01:01.390 34.5 1.18 s 5.3 mb 73.39° 289.1° System-search
AE.UMQ.--.HHZ 2017-09-23 00:01:01.680 73.6 1.16 s 5.6 mb 73.33° 290.1° System-search
DN.NAZ.--.HHZ 2017-09-23 00:01:02.250 33.4 1.22 s 5.2 mb 73.57° 289.6° System-search
DN.FAQ.--.HHZ 2017-09-23 00:01:02.470 1e+03 1.02 s 6.0 mB_BB 73.74° 289.4° System-search
DN.FAQ.--.HHZ 2017-09-23 00:01:02.599 136.5 0.98 s 5.9 mb 73.74° 289.4° System-search
AE.ALN.--.HHZ 2017-09-23 00:01:04.440 57.7 0.92 s 5.6 mb 73.93° 288.7° System-search
DN.ASU.--.HHZ 2017-09-23 00:01:05.029 2e+03 0.92 s 6.2 mB_BB 74.01° 289.4° System-search
DN.ASU.--.HHZ 2017-09-23 00:01:05.170 245.9 1.02 s 6.2 mb 74.01° 289.4° System-search
AE.AJN.--.HHZ 2017-09-23 00:01:06.170 60.8 0.98 s 5.6 mb 74.31° 289.5° System-search
II.KIV.00.BHZ 2017-09-23 00:01:07.089 5e+03 1.00 s 6.7 mB_BB 74.29° 312.1° System-search
II.KIV.00.BHZ 2017-09-23 00:01:07.490 513.5 1.00 s 6.5 mb 74.29° 312.1° System-search
AE.SRB.--.HHZ 2017-09-23 00:01:07.910 82.8 0.92 s 5.7 mb 74.62° 290.4° System-search
II.KIV.00.BHZ 2017-09-23 00:01:09.140 2e+03 4.15 s 5.6 Mwp 74.29° 312.1° System-search
GO.AKH.--.HHZ 2017-09-23 00:01:10.839 850.0 1.20 s 5.9 mB_BB 74.98° 309.5° System-search
GO.AKH.--.HHZ 2017-09-23 00:01:11.299 88.4 1.02 s 5.7 mb 74.98° 309.5° System-search
IU.GNI.00.BHZ 2017-09-23 00:01:12.859 1e+03 4.20 s 5.5 Mwp 74.74° 307.9° System-search
AE.JRN.--.HHZ 2017-09-23 00:01:14.380 62.5 0.92 s 5.6 mb 75.85° 290.8° System-search
IU.GNI.00.BHZ 2017-09-23 00:01:16.059 213.6 1.20 s 6.0 mb 74.74° 307.9° System-search
IU.GNI.00.BHZ 2017-09-23 00:01:16.210 1e+03 1.40 s 6.1 mB_BB 74.74° 307.9° System-search
AE.MZR.--.HHZ 2017-09-23 00:01:17.440 155.0 1.00 s 6.0 mb 76.26° 288.8° System-search
BH.SAK.--.HHZ 2017-09-23 00:01:22.349 84.3 1.16 s 5.7 mb 77.20° 292.8° System-search
II.FFC.00.BHZ 2017-09-23 00:01:48.210 18.5 1.10 s 5.0 mb 78.70° 31.7° System-search
AE.SHM.--.HHZ 2017-09-23 00:01:49.109 5e+03 53.14 s 6.0 Mwp 72.75° 290.5° System-search
GO.AKH.--.HHZ 2017-09-23 00:01:51.430 3e+03 41.24 s 5.8 Mwp 74.98° 309.5° System-search
IU.ANTO.00.BHZ 2017-09-23 00:01:52.565 384.8 1.15 s 5.6 mB_BB 82.71° 312.6° System-search
IU.ANTO.00.BHZ 2017-09-23 00:01:52.940 31.4 0.90 s 5.4 mb 82.71° 312.6° System-search
IU.ANTO.00.BHZ 2017-09-23 00:01:59.240 314.8 7.85 s 5.1 Mwp 82.71° 312.6° System-search
II.FFC.00.BHZ 2017-09-23 00:02:16.220 482.5 5.80 s 5.7 mB_BB 78.70° 31.7° System-search
GE.EIL.--.BHZ 2017-09-23 00:02:16.640 20.7 1.00 s 5.3 mb 87.06° 303.2° System-search
II.ESK.00.BHZ 2017-09-23 00:02:20.210 37.8 1.10 s 5.6 mb 88.30° 340.4° System-search
II.BFO.00.BHZ 2017-09-23 00:02:26.890 68.9 1.00 s 5.1 mB_BB 89.97° 330.6° System-search
II.BFO.00.BHZ 2017-09-23 00:02:27.839 7.7 0.90 s 4.9 mb 89.97° 330.6° System-search
IU.KBL.--.BHZ 2017-09-23 00:16:37.568 2e+03 4.25 s 5.7 Ms_BB 59.14° 294.1° System-search
II.AAK.00.BHZ 2017-09-23 00:19:35.726 2e+03 5.25 s 5.6 Ms_BB 52.92° 302.2° System-search
II.KURK.00.BHZ 2017-09-23 00:19:59.238 970.6 16.95 s 5.3 Ms_BB 49.20° 312.1° System-search
Channel Phase Time Time Residual Dir. Event Distance Event Azimuth Automatic? Defined By Action
II.ERM.00.BHZ Pn 2017-09-22 23:51:58.519 -3.40 s 10.75° 9.2° no Time System-search
IU.PET.00.BHZ P 2017-09-22 23:54:53.140 0.50 s 25.17° 25.7° yes Time System-search
IU.MAKZ.00.BHZ P 2017-09-22 23:57:59.410 -0.10 s 47.13° 306.7° yes Time System-search
II.KURK.00.BHZ P 2017-09-22 23:58:15.170 -0.20 s 49.20° 312.1° no Time System-search
II.AAK.00.BHZ P 2017-09-22 23:58:43.609 -0.10 s 52.92° 302.2° no Time System-search
IU.COLA.00.BHZ P 2017-09-22 23:58:52.740 0.80 s 54.12° 29.9° yes Time System-search
II.BRVK.00.BHZ P 2017-09-22 23:58:52.759 0.10 s 54.20° 315.5° yes Time System-search
IU.KBL.--.BHZ P 2017-09-22 23:59:27.839 -0.60 s 59.14° 294.1° no Time System-search
IU.KEV.00.BHZ P 2017-09-23 00:00:29.609 0.20 s 68.55° 340.0° yes Time System-search
II.OBN.00.BHZ P 2017-09-23 00:00:52.700 -0.20 s 72.36° 324.3° no Time System-search
OM.BID.--.HHZ P 2017-09-23 00:00:52.700 -0.10 s 72.24° 287.2° no Time System-search
AE.SHM.--.HHZ P 2017-09-23 00:00:55.970 0.20 s 72.75° 290.5° no Time System-search
OM.MDH.--.HHZ P 2017-09-23 00:00:56.849 0 s 72.92° 289.6° yes Time System-search
AE.MSF.--.HHZ P 2017-09-23 00:00:57.980 0.60 s 73.00° 289.7° yes Time System-search
DN.HAT.--.HHZ P 2017-09-23 00:00:59.259 0.30 s 73.27° 289.2° yes Time System-search
AE.UMQ.--.HHZ P 2017-09-23 00:00:59.420 0.20 s 73.33° 290.1° no Time System-search
OM.ASH.--.HHZ P 2017-09-23 00:00:59.950 0.30 s 73.39° 289.1° yes Time System-search
DN.NAZ.--.HHZ P 2017-09-23 00:01:00.880 0.20 s 73.57° 289.6° yes Time System-search
DN.FAQ.--.HHZ P 2017-09-23 00:01:01.640 0 s 73.74° 289.4° no Time System-search
AE.ALN.--.HHZ P 2017-09-23 00:01:02.589 -0.20 s 73.93° 288.7° yes Time System-search
DN.ASU.--.HHZ P 2017-09-23 00:01:03.579 0.40 s 74.01° 289.4° no Time System-search
AE.AJN.--.HHZ P 2017-09-23 00:01:04.720 -0.20 s 74.31° 289.5° no Time System-search
II.KIV.00.BHZ P 2017-09-23 00:01:04.990 0.30 s 74.29° 312.1° no Time System-search
AE.SRB.--.HHZ P 2017-09-23 00:01:06.700 -0.10 s 74.62° 290.4° no Time System-search
IU.GNI.00.BHZ P 2017-09-23 00:01:08.460 1.00 s 74.74° 307.9° no Time System-search
GO.AKH.--.HHZ P 2017-09-23 00:01:10.009 1.20 s 74.98° 309.5° no Time System-search
AE.JRN.--.HHZ P 2017-09-23 00:01:13.829 -0.10 s 75.85° 290.8° yes Time System-search
AE.MZR.--.HHZ P 2017-09-23 00:01:16.069 -0.20 s 76.26° 288.8° yes Time System-search
BH.SAK.--.HHZ P 2017-09-23 00:01:21.170 -0.30 s 77.20° 292.8° yes Time System-search
II.FFC.00.BHZ P 2017-09-23 00:01:28.619 -0.70 s 78.70° 31.7° no Time System-search
IU.ANTO.00.BHZ P 2017-09-23 00:01:51.390 0.20 s 82.71° 312.6° no Time System-search
GE.EIL.--.BHZ P 2017-09-23 00:02:13.440 0.40 s 87.06° 303.2° no Time System-search
II.ESK.00.BHZ P 2017-09-23 00:02:18.309 -0.20 s 88.30° 340.4° no Time System-search
II.BFO.00.BHZ P 2017-09-23 00:02:26.190 -0.40 s 89.97° 330.6° no Time System-search
IU.KMBO.00.BHZ Pdif 2017-09-23 00:03:22.599 -0.40 s 102.20° 276.4° no Time System-search
GT.PLCA.00.BHZ PKPbc 2017-09-23 00:09:24.799 0 s 153.07° 118.4° yes Time System-search

Shake Maps

None

Ground Motion

None

Event 20170922-6

Time: 2017-09-22 23:49:30.080
Position:31.4029°N, 140.8608°E
Place:North Pacific Ocean
Major Place:485 km S of Tokyo, Japan
Depth:29.7 km
Magnitude:5.6 mb