Event 20210711-2
2021-07-11 00:08:02.190 UTC 12 km 5.3 mb
51.9246°N, 177.2261°E
121 km from Amchitka, Alaska, United States
Time Error: 2.26 s Analysis Type: Manual
Time RMS: 1.11 s Num. Stations: 19
Depth Error: 10 km Num. Phases: 19
Reference Elevation: 0 km Max. Intensity (MMI):
Azimuth Gap: 154° Effects Type: Seismic
 
UNCHECKED, FULLY AUTOMATIC LOCATION
Magnitudes
Preferred Magnitude Stations Error Author Action
5.3 M 18 0.4 NEIC Action show
Emblem favorite 5.3 mb 10 0.2 BH Action show
5.1 Ms_BB 4 0.2 NEIC Action show
5.6 mB_BB 2 0.4 NEIC Action show
4.5 ML 2 0.3 NEIC Action show
5.3 M 0 0 NCMS Action show
5.3 mb 0 0 NCMS Action show
 
Origin Details
Ellipse Major: 16.30 km Seismic Moment:
Ellipse Minor: 7.00 km Corner Frequency:
Ellipse Strike: 179.0° Stress Drop:
Min. Distance: 3.77° Source Radius:
Max. Distance: 93.82° Location Method: Inversion
Fixed Location: no Author: NEIC
Fixed Depth: no Event Type: Earthquake
Fixed Phase: no External Event ID: HYDRA_RED@70207
Fixed Time: no External Origin ID: HYDRA_RED@132352
 
Error Ellipse
Length Azimuth Dip Action
Maximum 38.70 km 179.00° 9.00° Action show
Intermediate 17.10 km 85.00° 24.00° Action show
Minimum 12.80 km 289.00° 63.00° Action show
 

None

Channel Time Amplitude Period/Duration Magnitude Event Distance Event Azimuth Action
IU.ADK.00.BH1 2021-07-11 00:10:20.839 UTC 792.0 2.03 s 4.5 ML 3.77° 88.2° Action show
IU.ADK.00.BHZ 2021-07-11 00:11:03.484 UTC 5904.2 7.88 s 4.2 Ms_BB 3.77° 88.2° Action show
IU.PET.00.BHZ 2021-07-11 00:16:17.730 UTC 3830.6 13.00 s 4.8 Ms_BB 11.38° 282.9° Action show
II.FFC.00.BHZ 2021-07-11 00:16:26.960 UTC 27.7 1.70 s 4.9 mb 45.81° 52.9° Action show
IU.WCI.10.BHZ 2021-07-11 00:18:49.065 UTC 13.2 0.85 s 5.1 mb 64.61° 59.9° Action show
II.AAK.00.BHZ 2021-07-11 00:18:49.859 UTC 65.9 1.20 s 5.7 mb 64.58° 307.3° Action show
IU.KBL.--.BHZ 2021-07-11 00:19:34.565 UTC 8.8 0.75 s 4.9 mb 73.52° 305.2° Action show
IU.DAV.00.BHZ 2021-07-11 00:19:37.015 UTC 248.3 0.40 s 6.7 mb 61.49° 242.4° Action show
IU.KIEV.00.BHZ 2021-07-11 00:19:41.960 UTC 405.8 2.00 s 6.1 mb 74.22° 339.6° Action show
QK.SLY.--.HHZ 2021-07-11 00:20:30.869 UTC 3.0 0.92 s 4.5 mb 83.14° 322.4° Action show
MM.KI02.--.HHZ 2021-07-11 00:20:33.170 UTC 34.5 1.54 s 5.3 mb 82.94° 322.4° Action show
QK.KSDD.--.HHZ 2021-07-11 00:20:33.960 UTC 29.1 1.74 s 5.2 mb 83.50° 321.9° Action show
MM.KI02.--.HHZ 2021-07-11 00:20:34.130 UTC 319.3 4.72 s 5.7 mB_BB 82.94° 322.4° Action show
MM.KI05.--.HHZ 2021-07-11 00:20:34.359 UTC 317.6 3.88 s 5.7 mB_BB 82.94° 322.4° Action show
MM.KI05.--.HHZ 2021-07-11 00:20:39.490 UTC 55.6 2.00 s 5.4 mb 82.94° 322.4° Action show
IU.COLA.00.BHZ 2021-07-11 00:24:46.847 UTC 4678.2 14.32 s 5.4 Ms_BB 22.05° 40.6° Action show
II.FFC.00.BHZ 2021-07-11 00:36:41.966 UTC 1309.0 17.80 s 5.4 Ms_BB 45.81° 52.9° Action show
Channel Phase Time Time Residual Direction Event Distance Event Azimuth Automatic? Defined By Action
IU.ADK.00.BHZ Pn 2021-07-11 00:09:00.039 UTC 0 s _ 3.77° 88.2° yes Time Action show
IU.PET.00.BHZ Pn 2021-07-11 00:10:45.259 UTC 0.90 s _ 11.38° 282.9° yes Time Action show
II.KDAK.00.BHZ Pn 2021-07-11 00:12:12.990 UTC -1.80 s _ 18.24° 59.4° yes Time Action show
II.FFC.00.BHZ P 2021-07-11 00:16:22.259 UTC -1.10 s _ 45.81° 52.9° yes Time Action show
IU.TUC.10.BHZ P 2021-07-11 00:17:31.210 UTC 1.10 s _ 54.56° 81.2° yes Time Action show
IU.DAV.00.BHZ P 2021-07-11 00:18:07.589 UTC -11.10 s _ 61.49° 242.4° yes Time Action show
II.AAK.00.BHZ P 2021-07-11 00:18:39.009 UTC -0.20 s _ 64.58° 307.3° yes Time Action show
IU.WCI.10.BHZ P 2021-07-11 00:18:39.240 UTC 0.10 s _ 64.61° 59.9° yes Time Action show
IU.WVT.10.BHZ P 2021-07-11 00:18:43.759 UTC 0 s _ 65.31° 62.5° yes Time Action show
II.ESK.10.BHZ P 2021-07-11 00:19:31.890 UTC 0 s _ 73.13° 0.3° yes Time Action show
IU.KBL.--.BHZ P 2021-07-11 00:19:33.890 UTC -1.00 s _ 73.52° 305.2° yes Time Action show
IU.KIEV.00.BHZ P 2021-07-11 00:19:37.609 UTC -0.70 s _ 74.22° 339.6° yes Time Action show
QK.KSQH.--.HHZ P 2021-07-11 00:20:26.089 UTC 0.20 s _ 82.78° 322.9° yes Time Action show
MM.KI02.--.HHZ P 2021-07-11 00:20:26.609 UTC -0.30 s _ 82.94° 322.4° yes Time Action show
MM.KI05.--.HHZ P 2021-07-11 00:20:27.089 UTC 0.20 s _ 82.94° 322.4° yes Time Action show
QK.SLY.--.HHZ P 2021-07-11 00:20:30.789 UTC 2.80 s _ 83.14° 322.4° yes Time Action show
QK.KSDD.--.HHZ P 2021-07-11 00:20:31.119 UTC 1.50 s _ 83.50° 321.9° yes Time Action show
IU.ANTO.00.BHZ P 2021-07-11 00:20:33.000 UTC 3.50 s _ 83.47° 333.3° yes Time Action show
II.RAYN.00.BHZ P 2021-07-11 00:21:20.039 UTC 0.70 s _ 93.82° 316.8° yes Time Action show

Ground Motion

No ground motions for this event.