Earthquake 20170820-4

2017-08-20 22:38:44.700 45.5 km 2.6 ML
26.9987°N, 53.7222°E
183 km NW of Abu Musa, UAE
Time Error: 0.92 s Depth Error: 19.8 km
Num. Stations: 13 Time RMS: 0.45 s
Num. Phases: 14 Azimuth Gap: 271°
Analysis Type: Manual Max. Intensity (MMI):
Effects Type: Seismic
 

MANUALLY REVIEWED LOCATION

Magnitudes

Preferred Magnitude Stations Error Author Action
2.3 mb_Lg 5 0.20 NCMS System-search
2.6 M 0 0 NCMS System-search
Emblem-favorite 2.6 ML 0 0 NCMS System-search
2.4 M 34 0.30 NCMS System-search
2.6 ML 25 0.10 NCMS System-search

Origin Details

Ellipse Major:51.40 km Min. Distance:1.83° Fixed Depth:no
Ellipse Minor:13.30 km Max. Distance:3.99° Fixed Phase:no
Ellipse Strike:157.0° Fixed Location:no Fixed Time:no
Author:NCMS Location Method:Inversion Event Type:Earthquake
External Event ID:HYDRA_RED@17967 External Origin ID:HYDRA_RED@35993

Error Ellipse

Azimuth Dip Magnitude Action
Max 157° 121.1 km System-search
Intermediate 247° 31.2 km System-search
Min 87° 29.7 km System-search

None

Channel Time Amplitude Period/Duration Magnitude Event Distance Event Azimuth Action
AE.SRB.--.HHN 2017-08-20 22:40:00.960 79.6 0.59 s 2.8 ML 1.83° 165.3° System-search
DN.NAZ.--.HHZ 2017-08-20 22:40:09.887 8.4 0.84 s 2.2 mb_Lg 2.66° 138.5° System-search
AE.JRN.--.HHN 2017-08-20 22:40:10.160 23.6 0.78 s 2.4 ML 2.19° 201.2° System-search
AE.SHM.--.HHN 2017-08-20 22:40:15.990 59.7 0.82 s 2.8 ML 2.25° 111.8° System-search
OM.MDH.--.HHZ 2017-08-20 22:40:22.835 6.2 1.12 s 2.1 mb_Lg 2.87° 125.6° System-search
BH.SAK.--.HHZ 2017-08-20 22:40:25.927 29.3 0.92 s 2.8 mb_Lg 3.03° 251.1° System-search
AE.MSF.--.HHN 2017-08-20 22:40:28.779 33.8 0.80 s 2.8 ML 2.72° 126.0° System-search
OM.MDH.--.HHN 2017-08-20 22:40:33.519 8.0 0.94 s 2.2 ML 2.87° 125.6° System-search
AE.ALN.--.HHZ 2017-08-20 22:40:34.372 13.1 1.14 s 2.5 mb_Lg 3.46° 147.5° System-search
OM.SOH.--.HHE 2017-08-20 22:40:34.559 4.8 0.95 s 2.3 ML 3.82° 137.7° System-search
DN.NAZ.--.HHE 2017-08-20 22:40:35.730 28.9 1.22 s 2.7 ML 2.66° 138.5° System-search
OM.SOH.--.HHZ 2017-08-20 22:40:52.219 2.6 0.78 s 1.9 mb_Lg 3.82° 137.7° System-search
OM.ASH.--.HHN 2017-08-20 22:40:53.400 11.1 0.85 s 2.4 ML 3.12° 137.1° System-search
II.UOSS.10.BH1 2017-08-20 22:40:55.279 12.4 1.70 s 2.5 ML 3.03° 131.9° System-search
DN.HAT.--.HHE 2017-08-20 22:41:01.380 9.1 1.59 s 2.3 ML 3.06° 134.4° System-search
DN.FAQ.--.HHN 2017-08-20 22:41:01.730 217.3 3.39 s 3.6 ML 2.81° 142.7° System-search
AE.ALN.--.HHE 2017-08-20 22:41:06.509 26.9 1.00 s 2.9 ML 3.46° 147.5° System-search
AE.MZR.--.HHE 2017-08-20 22:41:42.700 76.6 0.83 s 3.6 ML 3.99° 183.2° System-search
Channel Phase Time Time Residual Dir. Event Distance Event Azimuth Automatic? Defined By Action
AE.SRB.--.HHZ Pn 2017-08-20 22:39:14.519 0.90 s 1.83° 165.3° no Time System-search
AE.JRN.--.HHZ Pn 2017-08-20 22:39:19.039 0.40 s 2.19° 201.2° no Time System-search
AE.SHM.--.HHZ Pn 2017-08-20 22:39:19.539 0.20 s 2.25° 111.8° no Time System-search
DN.NAZ.--.HHZ Pn 2017-08-20 22:39:25.019 0 s 2.66° 138.5° no Time System-search
AE.MSF.--.HHZ Pn 2017-08-20 22:39:26.220 0.20 s 2.72° 126.0° no Time System-search
DN.FAQ.--.HHZ Pn 2017-08-20 22:39:26.579 -0.50 s 2.81° 142.7° no Time System-search
OM.MDH.--.HHZ Pn 2017-08-20 22:39:28.380 0.50 s 2.87° 125.6° no Time System-search
II.UOSS.10.BHZ Pn 2017-08-20 22:39:30.279 0.10 s 3.03° 131.9° no Time System-search
DN.HAT.--.HHZ Pn 2017-08-20 22:39:30.410 -0.20 s 3.06° 134.4° no Time System-search
OM.ASH.--.HHZ Pn 2017-08-20 22:39:30.569 -0.90 s 3.12° 137.1° no Time System-search
AE.SRB.--.HHZ Sn 2017-08-20 22:39:35.250 -0.40 s 1.83° 165.3° no Time System-search
AE.ALN.--.HHZ Pn 2017-08-20 22:39:35.839 -0.20 s 3.46° 147.5° no Time System-search
OM.SOH.--.HHZ Pn 2017-08-20 22:39:40.309 -0.70 s 3.82° 137.7° no Time System-search
AE.MZR.--.HHZ Pn 2017-08-20 22:39:43.230 -0.10 s 3.99° 183.2° no Time System-search

Shake Maps

None

Ground Motion

Station PGA PGA Time PGV PGV Time PGD PGD Time RSA @ 0.3s RSA @ 1.0s RSA @ 3.0s Action
AE.ALN.--.HHN 0.000704 cm/s2 2017-08-20 22:39:42.313 0.000034 cm/s 2017-08-20 22:39:37.163 0.000021 cm 2017-08-20 22:39:27.833 0.001448 cm/s2 0.000268 cm/s2 0.000133 cm/s2 System-search
AE.ALN.--.HHZ 0.000588 cm/s2 2017-08-20 22:39:40.363 0.000046 cm/s 2017-08-20 22:39:41.193 0.000032 cm 2017-08-20 22:39:45.613 0.001084 cm/s2 0.000182 cm/s2 0.000145 cm/s2 System-search
AE.SRB.--.HHN 0.003475 cm/s2 2017-08-20 22:39:52.944 0.000147 cm/s 2017-08-20 22:39:53.004 0.000017 cm 2017-08-20 22:39:48.944 0.009655 cm/s2 0.001731 cm/s2 0.00032 cm/s2 System-search
AE.SRB.--.HNE 0.003778 cm/s2 2017-08-20 22:39:50.284 0.00016 cm/s 2017-08-20 22:39:50.334 0.00007 cm 2017-08-20 22:39:30.784 0.009103 cm/s2 0.002111 cm/s2 0.000324 cm/s2 System-search
AE.SRB.--.HNN 0.003318 cm/s2 2017-08-20 22:39:52.944 0.000149 cm/s 2017-08-20 22:39:52.864 0.000071 cm 2017-08-20 22:39:41.564 0.009237 cm/s2 0.00162 cm/s2 0.000397 cm/s2 System-search
OM.ASH.--.HHN 0.000215 cm/s2 2017-08-20 22:39:35.110 0.000011 cm/s 2017-08-20 22:39:55.000 0.000007 cm 2017-08-20 22:39:54.340 0.000865 cm/s2 0.000182 cm/s2 0.000058 cm/s2 System-search

Event 20170820-4

Time: 2017-08-20 22:38:44.700
Position:26.9987°N, 53.7222°E
Place:
Major Place:183 km NW of Abu Musa, UAE
Depth:45.5 km
Magnitude:2.6 ML