Earthquake 20170427-16

2017-04-27 23:38:59.390 1.2 km 5.1 Mb
50.4176°N, 179.0446°E
North Pacific Ocean
2951 km E of Sapporo, Japan
Time Error: 1.27 s Depth Error: 228.5 km
Num. Stations: 17 Time RMS: 0.63 s
Num. Phases: 17 Azimuth Gap: 269°
Analysis Type: Manual Max. Intensity (MMI):
Effects Type:
 

MANUALLY REVISED LOCATION

Magnitudes

Preferred Magnitude Stations Error Author Action
Emblem-favorite 5.1 Mb 9 1.0 NCMS System-search
4.5 Ms 18 1.0 NCMS System-search

Origin Details

Ellipse Major:71.30 km Min. Distance:22.50° Fixed Depth:no
Ellipse Minor:23.20 km Max. Distance:92.46° Fixed Phase:no
Ellipse Strike:173.0° Fixed Location:no Fixed Time:no
Author:NCMS Location Method:Inversion Event Type:Earthquake
External Event ID:HYDRA_RED@23398 External Origin ID:HYDRA_RED@98541

Error Ellipse

Azimuth Dip Magnitude Action
Max 68° 371.6 km System-search
Intermediate 151° 18° 109.2 km System-search
Min 244° 11° 29.7 km System-search

None

Channel Time Amplitude Period/Duration Magnitude Event Distance Event Azimuth Action
IU.COLA.00.BHZ 2017-04-27 23:43:59.910 1e+03 1.00 s 4.9 Mb 22.47° 37.0° System-search
IU.MAKZ.00.BHZ 2017-04-27 23:49:04.359 246.0 1.05 s 5.1 Mb 59.63° 307.0° System-search
II.BRVK.00.BHZ 2017-04-27 23:49:11.859 1e+03 1.10 s 5.5 Mb 60.67° 319.0° System-search
II.AAK.00.BHZ 2017-04-27 23:49:50.559 700.0 1.00 s 5.8 Mb 66.34° 308.0° System-search
II.NIL.00.BHZ 2017-04-27 23:50:35.819 705.5 1.20 s 5.7 Mb 73.74° 303.0° System-search
IU.KBL.--.BHZ 2017-04-27 23:50:44.220 532.0 1.05 s 5.4 Mb 75.26° 306.0° System-search
II.KIV.00.BHZ 2017-04-27 23:51:03.230 437.5 1.00 s 5.6 Mb 78.51° 329.0° System-search
IU.GNI.00.BHZ 2017-04-27 23:51:19.059 1e+03 1.10 s 5.3 Mb 81.20° 326.0° System-search
IU.ANTO.00.BHZ 2017-04-27 23:51:38.039 230.5 1.25 s 5.0 Mb 85.21° 334.0° System-search
OM.BAN.--.HHZ 2017-04-27 23:51:52.990 146.5 1.08 s 5.2 Mb 88.63° 310.0° System-search
AE.SHM.--.HHZ 2017-04-27 23:51:54.829 127.5 1.32 s 5.2 Mb 88.57° 311.0° System-search
OM.MDH.--.HHZ 2017-04-27 23:51:56.579 28.5 1.08 s 4.5 Mb 89.15° 310.0° System-search
AE.MSF.--.HHZ 2017-04-27 23:51:57.359 72.0 1.02 s 4.9 Mb 89.16° 310.0° System-search
DN.HAT.--.HHZ 2017-04-27 23:51:59.250 31.0 0.90 s 4.5 Mb 89.63° 310.0° System-search
OM.SOH.--.HHZ 2017-04-27 23:52:01.069 18.5 0.94 s 4.3 Mb 90.02° 309.0° System-search
AE.ALN.--.HHZ 2017-04-27 23:52:03.359 65.5 0.74 s 4.9 Mb 90.46° 310.0° System-search
AE.MZR.--.HHZ 2017-04-27 23:52:11.960 149.0 1.16 s 5.3 Mb 92.46° 311.0° System-search
II.ERM.00.BHZ 2017-04-27 23:52:29.380 611.5 19.00 s 4.0 Ms 26.00° 265.1° System-search
IU.COLA.00.BHZ 2017-04-27 23:53:13.630 945.5 19.60 s 4.1 Ms 22.50° 37.5° System-search
II.FFC.00.BHZ 2017-04-28 00:07:44.640 767.5 19.75 s 4.5 Ms 45.81° 52.5° System-search
IU.KEV.00.BHZ 2017-04-28 00:12:34.690 856.5 19.20 s 4.6 Ms 58.41° 349.0° System-search
IU.MAKZ.00.BHZ 2017-04-28 00:15:40.815 491.5 20.00 s 4.7 Ms 59.70° 307.9° System-search
II.BRVK.00.BHZ 2017-04-28 00:16:30.440 1e+03 20.65 s 4.9 Ms 60.75° 319.2° System-search
II.KAPI.00.BHZ 2017-04-28 00:18:57.990 165.0 19.95 s 4.3 Ms 75.01° 242.6° System-search
II.AAK.00.BHZ 2017-04-28 00:19:45.289 746.5 18.30 s 5.1 Ms 66.41° 308.9° System-search
IU.RAO.00.BHZ 2017-04-28 00:21:41.990 764.5 18.13 s 5.1 Ms 79.36° 177.3° System-search
CU.TGUH.00.BHZ 2017-04-28 00:22:58.539 166.0 19.80 s 4.5 Ms 81.63° 78.0° System-search
II.OBN.00.BHZ 2017-04-28 00:23:32.039 810.0 20.45 s 4.9 Ms 70.27° 338.2° System-search
II.NIL.00.BHZ 2017-04-28 00:25:04.490 257.5 18.90 s 4.8 Ms 73.81° 303.4° System-search
IU.KBL.--.BHZ 2017-04-28 00:26:38.539 190.5 19.48 s 4.5 Ms 75.33° 306.8° System-search
II.BFO.00.BHZ 2017-04-28 00:28:42.890 236.0 18.40 s 3.7 Ms 81.31° 353.8° System-search
AE.UMQ.--.HHZ 2017-04-28 00:29:55.630 53.5 19.30 s 4.3 Ms 89.35° 311.2° System-search
IU.GNI.00.BHZ 2017-04-28 00:31:43.589 823.0 18.35 s 4.8 Ms 81.31° 326.4° System-search
DN.ASU.--.HHZ 2017-04-28 00:31:47.839 29.0 20.08 s 4.7 Ms 90.27° 310.9° System-search
CU.MTDJ.00.BHZ 2017-04-28 00:31:54.115 99.5 18.98 s 4.3 Ms 84.39° 68.1° System-search
OM.BAN.--.HHZ 2017-04-28 00:32:39.099 13.0 18.73 s 3.7 Ms 88.71° 310.9° System-search
II.KIV.00.BHZ 2017-04-28 00:32:54.390 306.5 18.65 s 5.0 Ms 78.62° 329.5° System-search
II.UOSS.10.BHZ 2017-04-28 00:35:48.890 101.0 18.20 s 4.0 Ms 89.57° 310.4° System-search
DN.HAT.--.HHZ 2017-04-28 00:36:05.319 43.5 18.86 s 4.2 Ms 89.71° 310.4° System-search
DN.NAZ.--.HHZ 2017-04-28 00:36:32.099 48.0 20.11 s 4.3 Ms 89.80° 310.9° System-search
AE.ALN.--.HHZ 2017-04-28 00:36:54.250 128.5 21.28 s 4.7 Ms 90.54° 310.3° System-search
IU.OTAV.00.BHZ 2017-04-28 00:37:34.039 109.5 19.70 s 4.2 Ms 97.78° 80.0° System-search
OM.MDH.--.HHZ 2017-04-28 00:37:49.849 24.5 20.27 s 4.0 Ms 89.23° 310.6° System-search
AE.MSF.--.HHZ 2017-04-28 00:37:50.829 86.5 19.32 s 4.5 Ms 89.24° 310.7° System-search
DN.FAQ.--.HHZ 2017-04-28 00:37:59.210 40.0 19.18 s 4.8 Ms 90.04° 310.8° System-search
IN.MNC.--.HHZ 2017-04-28 00:38:53.380 121.5 19.23 s 5.2 Ms 93.69° 287.7° System-search
OM.ASH.--.HHZ 2017-04-28 00:39:06.240 45.0 19.21 s 4.2 Ms 89.86° 310.4° System-search
OM.SOH.--.HHZ 2017-04-28 00:39:09.630 30.0 20.31 s 4.1 Ms 90.09° 309.8° System-search
AE.SRB.--.HHZ 2017-04-28 00:39:24.390 111.0 18.54 s 4.7 Ms 90.29° 312.1° System-search
OM.BID.--.HHZ 2017-04-28 00:39:40.990 136.0 20.54 s 4.7 Ms 89.81° 308.2° System-search
II.SACV.00.BHZ 2017-04-28 00:44:13.890 0.50 20.40 s 2.0 Ms 111.92° 23.5° System-search
IU.KMBO.00.BHZ 2017-04-28 00:54:42.140 476.0 20.75 s 5.0 Ms 121.17° 314.0° System-search
IU.LSZ.00.BHZ 2017-04-28 01:02:01.240 403.0 19.30 s 5.1 Ms 137.77° 316.0° System-search
Channel Phase Time Time Residual Dir. Event Distance Event Azimuth Automatic? Defined By Action
IU.COLA.00.BHZ P 2017-04-27 23:43:59.910 -0.30 s c 22.47° 37.0° yes Time System-search
IU.MAKZ.00.BHZ P 2017-04-27 23:49:04.359 -1.10 s c 59.63° 307.0° yes Time System-search
II.BRVK.00.BHZ P 2017-04-27 23:49:11.859 -0.70 s c 60.67° 319.0° yes Time System-search
II.AAK.00.BHZ P 2017-04-27 23:49:50.559 0.20 s c 66.34° 308.0° yes Time System-search
II.NIL.00.BHZ Pn 2017-04-27 23:50:35.819 0 s 73.74° 303.0° no System-search
IU.KBL.--.BHZ P 2017-04-27 23:50:44.220 -0.50 s c 75.26° 306.0° yes Time System-search
II.KIV.00.BHZ P 2017-04-27 23:51:03.230 0.30 s 78.51° 329.0° no Time System-search
GO.AKH.--.HHZ P 2017-04-27 23:51:14.190 0.20 s 80.51° 327.0° no Time System-search
IU.GNI.00.BHZ P 2017-04-27 23:51:19.059 1.40 s c 81.20° 326.0° yes Time System-search
IU.ANTO.00.BHZ P 2017-04-27 23:51:38.039 -0.20 s 85.21° 334.0° no Time System-search
OM.BAN.--.HHZ P 2017-04-27 23:51:52.990 -1.80 s 88.63° 310.0° no Time System-search
AE.SHM.--.HHZ P 2017-04-27 23:51:54.829 0.30 s c 88.57° 311.0° yes Time System-search
OM.MDH.--.HHZ P 2017-04-27 23:51:56.579 -0.70 s 89.15° 310.0° no Time System-search
AE.MSF.--.HHZ P 2017-04-27 23:51:57.359 0 s 89.16° 310.0° no Time System-search
DN.HAT.--.HHZ P 2017-04-27 23:51:59.250 -0.30 s 89.63° 310.0° no Time System-search
OM.SOH.--.HHZ P 2017-04-27 23:52:01.069 -0.20 s 90.02° 309.0° no Time System-search
AE.ALN.--.HHZ P 2017-04-27 23:52:03.359 0 s c 90.46° 310.0° yes Time System-search
AE.MZR.--.HHZ P 2017-04-27 23:52:11.960 -0.70 s 92.46° 311.0° no Time System-search

Shake Maps

None

Ground Motion

None

Event 20170427-16

Time: 2017-04-27 23:38:59.390
Position:50.4176°N, 179.0446°E
Place:North Pacific Ocean
Major Place:2951 km E of Sapporo, Japan
Depth:1.2 km
Magnitude:5.1 Mb