Event 20210804-5
2021-08-04 01:46:40.520 UTC 23 km 3.7 ML
33.4437°N, 59.0983°E
2.6 km from Ja‘farābād, South Khorasan Province, Iran
Time Error: 3.27 s Analysis Type: Manual
Time RMS: 1.61 s Num. Stations: 14
Depth Error: 18 km Num. Phases: 14
Reference Elevation: 0 km Max. Intensity (MMI):
Azimuth Gap: 302° Effects Type: Seismic
 
UNCHECKED, FULLY AUTOMATIC LOCATION
Magnitudes
Preferred Magnitude Stations Error Author Action
Emblem favorite 3.7 ML 6 0.1 BH Action show
3.9 M 16 0.5 NEIC Action show
 
Origin Details
Ellipse Major: 96.70 km Seismic Moment:
Ellipse Minor: 15.30 km Corner Frequency:
Ellipse Strike: 49.0° Stress Drop:
Min. Distance: 7.75° Source Radius:
Max. Distance: 11.45° Location Method: Inversion
Fixed Location: no Author: NEIC
Fixed Depth: no Event Type: Earthquake
Fixed Phase: no External Event ID: HYDRA_RED@72308
Fixed Time: no External Origin ID: HYDRA_RED@136382
 
Error Ellipse
Length Azimuth Dip Action
Maximum 227.70 km 229.00° 1.00° Action show
Intermediate 36.10 km 319.00° 3.00° Action show
Minimum 26.60 km 111.00° 86.00° Action show
 

None

Channel Time Amplitude Period/Duration Magnitude Event Distance Event Azimuth Action
AE.SHM.--.HHN 2021-08-04 01:49:35.240 UTC 8.4 0.55 s 3.7 ML 7.75° 200.8° Action show
AE.MSF.--.HHN 2021-08-04 01:49:57.750 UTC 4.9 1.63 s 3.7 ML 8.44° 198.4° Action show
II.UOSS.10.BH1 2021-08-04 01:50:00.835 UTC 6.2 2.38 s 3.9 ML 8.84° 197.4° Action show
Channel Phase Time Time Residual Direction Event Distance Event Azimuth Automatic? Defined By Action
AE.SHM.--.HHZ Pn 2021-08-04 01:48:30.549 UTC -3.40 s _ 7.75° 200.8° no Time Action show
AE.MSF.--.HHZ Pn 2021-08-04 01:48:42.019 UTC -1.50 s _ 8.44° 198.4° no Time Action show
OM.MDH.--.HHZ Pn 2021-08-04 01:48:43.039 UTC -0.90 s _ 8.48° 197.5° no Time Action show
II.UOSS.10.BHZ Pn 2021-08-04 01:48:46.509 UTC -2.40 s _ 8.84° 197.4° no Time Action show
DN.NAZ.--.HHZ Pn 2021-08-04 01:48:47.039 UTC -3.20 s _ 8.94° 200.5° yes Time Action show
DN.FAQ.--.HHZ Pn 2021-08-04 01:48:49.430 UTC -4.30 s _ 9.19° 200.4° no Time Action show
DN.HAT.--.HHZ Pn 2021-08-04 01:48:49.740 UTC -0.90 s _ 8.97° 197.6° no Time Action show
DN.ASU.--.HHZ Pn 2021-08-04 01:48:51.359 UTC -4.90 s _ 9.38° 201.5° no Time Action show
OM.ASH.--.HHZ Pn 2021-08-04 01:48:51.450 UTC -1.40 s _ 9.12° 197.7° yes Time Action show
OM.SOH.--.HHZ Pn 2021-08-04 01:48:56.779 UTC -1.90 s _ 9.54° 194.3° no Time Action show
KW.UMR.00.HHZ Pn 2021-08-04 01:49:14.250 UTC -4.60 s _ 10.80° 250.6° no Time Action show
KW.RDF.00.HHZ Pn 2021-08-04 01:49:16.470 UTC -7.60 s _ 11.21° 247.4° no Time Action show
KW.MIB.00.HHZ Pn 2021-08-04 01:49:18.230 UTC -2.20 s _ 10.90° 251.9° no Time Action show
KW.RST.00.HHZ Pn 2021-08-04 01:49:22.450 UTC -5.60 s _ 11.45° 252.2° no Time Action show

Ground Motion

No ground motions for this event.