Earthquake 20170420-1

2017-04-20 08:42:21.640 38.5 km 5.1 Mb
49.4083°N, 155.9066°E
North Pacific Ocean
1319 km NE of Sapporo, Japan
Time Error: 0.87 s Depth Error: 15.1 km
Num. Stations: 19 Time RMS: 0.43 s
Num. Phases: 19 Azimuth Gap: 193°
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
4.3 mblg 1 1.0 NCMS System-search
4.4 Ms 1 1.0 NCMS System-search

Origin Details

Ellipse Major:19.50 km Min. Distance:4.01° Fixed Depth:no
Ellipse Minor:6.40 km Max. Distance:85.30° Fixed Phase:no
Ellipse Strike:140.0° Fixed Location:no Fixed Time:no
Author:NCMS Location Method:Inversion Event Type:Earthquake
External Event ID:HYDRA_RED@23227 External Origin ID:HYDRA_RED@97651

Error Ellipse

Azimuth Dip Magnitude Action
Max 140° 46.0 km System-search
Intermediate 78° 22.2 km System-search
Min 232° 14.7 km System-search

None

Channel Time Amplitude Period/Duration Magnitude Event Distance Event Azimuth Action
IU.PET.00.BHZ 2017-04-20 08:44:35.415 2e+04 0.85 s 4.3 mblg 4.01° 24.4° System-search
IU.COLA.00.BHZ 2017-04-20 08:48:51.259 587.5 0.80 s 5.0 Mb 32.84° 40.0° System-search
II.KURK.00.BHZ 2017-04-20 08:50:51.609 713.0 1.00 s 5.1 Mb 47.43° 302.0° System-search
II.BRVK.00.BHZ 2017-04-20 08:51:16.109 323.5 0.80 s 4.9 Mb 50.61° 308.0° System-search
II.AAK.00.BHZ 2017-04-20 08:51:43.609 159.5 0.80 s 4.9 Mb 54.29° 296.0° System-search
II.FFC.00.BHZ 2017-04-20 08:52:06.109 116.0 0.80 s 4.5 Mb 57.42° 42.0° System-search
II.NIL.00.BHZ 2017-04-20 08:52:29.759 356.5 0.90 s 5.5 Mb 60.79° 288.0° System-search
DN.HAT.--.HHZ 2017-04-20 08:54:13.980 181.5 0.92 s 5.1 Mb 77.52° 293.0° System-search
OM.ASH.--.HHZ 2017-04-20 08:54:14.720 145.0 1.02 s 5.0 Mb 77.67° 293.0° System-search
OM.SOH.--.HHZ 2017-04-20 08:54:15.400 79.0 0.94 s 4.7 Mb 77.80° 292.0° System-search
DN.FAQ.--.HHZ 2017-04-20 08:54:15.710 421.0 2.32 s 6.1 Mb 77.90° 293.0° System-search
IU.ANTO.00.BHZ 2017-04-20 08:54:16.589 322.5 0.70 s 4.9 Mb 77.85° 318.0° System-search
DN.ASU.--.HHZ 2017-04-20 08:54:17.859 538.0 1.06 s 6.2 Mb 78.15° 293.0° System-search
AE.ALN.--.HHZ 2017-04-20 08:54:18.339 374.5 0.84 s 5.4 Mb 78.32° 293.0° System-search
II.BFO.00.BHZ 2017-04-20 08:54:19.309 469.0 0.80 s 4.3 Mb 78.57° 338.0° System-search
UE.UMZA.--.HHZ 2017-04-20 08:54:25.460 356.5 0.84 s 5.7 Mb 79.69° 292.0° System-search
AE.MZR.--.HHZ 2017-04-20 08:54:29.910 986.5 0.76 s 5.8 Mb 80.48° 294.0° System-search
GE.EIL.--.BHZ 2017-04-20 08:54:54.940 310.0 0.80 s 5.3 Mb 85.30° 311.0° System-search
IU.COLA.00.BHZ 2017-04-20 09:04:46.039 949.0 18.90 s 4.4 Ms 32.89° 40.8° System-search
Channel Phase Time Time Residual Dir. Event Distance Event Azimuth Automatic? Defined By Action
IU.PET.00.BHZ Pn 2017-04-20 08:43:20.789 0.40 s c 4.01° 24.0° yes Time System-search
II.ERM.00.BHZ Pn 2017-04-20 08:45:04.059 0 s c 11.56° 235.0° yes Time System-search
IU.COLA.00.BHZ P 2017-04-20 08:48:51.259 -0.20 s c 32.84° 40.0° yes Time System-search
II.KURK.00.BHZ P 2017-04-20 08:50:51.609 -0.70 s c 47.43° 302.0° yes Time System-search
II.BRVK.00.BHZ P 2017-04-20 08:51:16.109 -0.60 s c 50.61° 308.0° yes Time System-search
II.AAK.00.BHZ P 2017-04-20 08:51:43.609 -0.60 s c 54.29° 296.0° yes Time System-search
II.FFC.00.BHZ P 2017-04-20 08:52:06.109 -0.30 s c 57.42° 42.0° yes Time System-search
II.NIL.00.BHZ P 2017-04-20 08:52:29.759 0 s c 60.79° 288.0° yes Time System-search
DN.HAT.--.HHZ P 2017-04-20 08:54:13.980 0.50 s c 77.52° 293.0° yes Time System-search
OM.ASH.--.HHZ P 2017-04-20 08:54:14.720 0.30 s c 77.67° 293.0° yes Time System-search
OM.SOH.--.HHZ P 2017-04-20 08:54:15.400 0.40 s c 77.80° 292.0° yes Time System-search
DN.FAQ.--.HHZ P 2017-04-20 08:54:15.710 0.10 s c 77.90° 293.0° yes Time System-search
IU.ANTO.00.BHZ P 2017-04-20 08:54:16.589 1.10 s c 77.85° 318.0° yes Time System-search
DN.ASU.--.HHZ P 2017-04-20 08:54:17.859 0.90 s c 78.15° 293.0° yes Time System-search
AE.ALN.--.HHZ P 2017-04-20 08:54:18.339 0.40 s c 78.32° 293.0° yes Time System-search
II.BFO.00.BHZ P 2017-04-20 08:54:19.309 -0.10 s c 78.57° 338.0° yes Time System-search
UE.UMZA.--.HHZ P 2017-04-20 08:54:25.460 0 s c 79.69° 292.0° yes Time System-search
AE.MZR.--.HHZ P 2017-04-20 08:54:29.910 0.20 s c 80.48° 294.0° yes Time System-search
GE.EIL.--.BHZ P 2017-04-20 08:54:54.940 0.20 s c 85.30° 311.0° yes Time System-search

Shake Maps

None

Ground Motion

None

Event 20170420-1

Time: 2017-04-20 08:42:21.640
Position:49.4083°N, 155.9066°E
Place:North Pacific Ocean
Major Place:1319 km NE of Sapporo, Japan
Depth:38.5 km
Magnitude:5.1 Mb