Event 20231218-4
2023-12-18 19:21:03.970 UTC 24.97 km 2.1 Ml
35.9645°N, 30.0823°E
Mediterranean Sea
237.0 km NW of Polis
Time Error: Analysis Type: Manual
Time RMS: 0.38 s Num. Stations: 27
Depth Error: 26.87 km Num. Phases: 15
Reference Elevation: 0.67 km Max. Intensity (MMI):
Azimuth: 348° Effects Type:
Magnitudes
Preferred Magnitude Stations Error Author Action
2.1 Ml 4 0
 
Origin Details
Ellipse Major: Seismic Moment:
Ellipse Minor: Corner Frequency:
Ellipse Strike: Stress Drop:
Min. Distance: 2.07° Source Radius:
Max. Distance: 3.05° Location Method:
Fixed Location: no Author: GSD
Fixed Depth: no Event Type:
Fixed Phase: no External Event ID:
Fixed Time: no External Origin ID:
Horizontal Error:
Error Ellipse
Length Azimuth Dip
Maximum 34.32 km 293.00° 51.00°
Intermediate 8.61 km 22.00° 0°
Minimum 1.71 km 112.00° 39.00°
 

None

Channel Time Amplitude Period/Duration Magnitude Event Distance Event Azimuth Action
CQ.AKMS.--.HHE 2023-12-18 19:22:05.480 UTC 8.4e-02 0.36 s 2.3 Ml 2.07° 116.0°
CQ.AKMS.--.HHN 2023-12-18 19:22:08.220 UTC 4.9e-02 0.30 s 2.1 Ml 2.07° 116.0°
CQ.ALEF.--.HHE 2023-12-18 19:22:09.880 UTC 6.4e-02 0.36 s 2.2 Ml 2.21° 110.0°
CQ.NATA.--.HHE 2023-12-18 19:22:13.280 UTC 0.3 0.46 s 2.6 Ml 2.35° 119.0°
CQ.ALEF.--.HHN 2023-12-18 19:22:16.510 UTC 4.4e-02 0.16 s 2.0 Ml 2.21° 110.0°
CQ.XYLS.--.HHN 2023-12-18 19:22:22.420 UTC 3.0e-02 0.32 s 2.0 Ml 2.60° 110.0°
Channel Phase Time Time Residual Direction Event Distance Event Azimuth SNR Automatic? Defined By Action
CQ.AKMS.--.HHZ P 2023-12-18 19:21:37.199 UTC 0.090 s Unspecified 2.07° 116.0° 1.90 no
CQ.ALEF.--.HHZ P 2023-12-18 19:21:39.474 UTC 0.43 s Unspecified 2.21° 110.0° 1.43 no
CQ.NATA.--.HHZ P 2023-12-18 19:21:40.991 UTC -0.11 s Unspecified 2.35° 119.0° 0.81 no
CQ.TROD.--.HHZ P 2023-12-18 19:21:42.928 UTC -0.090 s Unspecified 2.49° 113.0° 1.46 no
CQ.XYLS.--.HHZ P 2023-12-18 19:21:44.864 UTC 0.28 s Unspecified 2.60° 110.0° 0.88 no
CQ.ASGA.--.HHZ P 2023-12-18 19:21:47.838 UTC -0.12 s Unspecified 2.84° 113.0° 1.21 no
GE.CSS.--.HHZ P 2023-12-18 19:21:47.842 UTC -0.020 s Unspecified 2.84° 109.0° 0.97 no
CQ.MVOU.--.HHZ P 2023-12-18 19:21:50.321 UTC -0.53 s Unspecified 3.05° 107.0° 1.34 no
CQ.AKMS.--.HHE S 2023-12-18 19:22:02.361 UTC -0.60 s Unspecified 2.07° 116.0° 1.14 no
CQ.ALEF.--.HHE S 2023-12-18 19:22:07.670 UTC 1.26 s Unspecified 2.21° 110.0° 1.09 no
CQ.NATA.--.HHE S 2023-12-18 19:22:10.253 UTC 0.19 s Unspecified 2.35° 119.0° 1.25 no
CQ.TROD.--.HHN S 2023-12-18 19:22:12.691 UTC -0.79 s Unspecified 2.49° 113.0° 1.12 no
CQ.XYLS.--.HHE S 2023-12-18 19:22:16.149 UTC -0.11 s Unspecified 2.60° 110.0° 1.33 no
GE.CSS.--.HHE S 2023-12-18 19:22:22.708 UTC 0.62 s Unspecified 2.84° 109.0° 1.27 no
CQ.ASGA.--.HHE S 2023-12-18 19:22:22.850 UTC 0.58 s Unspecified 2.84° 113.0° 0.84 no
CQ.MVOU.--.HHE S 2023-12-18 19:22:27.161 UTC -0.26 s Unspecified 3.05° 107.0° 1.00 no

Ground Motion

Channel Intensity PGA (cm/s2) PGV (cm/s)
CQ.AKMS.--.HHE I 0.0051 9.1006e-05
CQ.AKMS.--.HHN I 0.0043 6.9787e-05
CQ.AKMS.--.HHZ I 0.0048 8.2770e-05
CQ.ALEF.--.HHE I 0.0041 4.8740e-05
CQ.ALEF.--.HHN I 0.0026 5.6590e-05
CQ.ALEF.--.HHZ I 0.0038 3.6081e-05
CQ.ASGA.--.HHE I 0.0029 3.6924e-05
CQ.ASGA.--.HHN I 0.0017 3.2802e-05
CQ.ASGA.--.HHZ I 0.0031 4.3536e-05
CQ.MVOU.--.HHE I 0.0006 2.4048e-05
CQ.MVOU.--.HHN I 0.0005 1.8297e-05
CQ.MVOU.--.HHZ I 0.0008 1.5619e-05
CQ.NATA.--.HHE I 0.0063 0.0001
CQ.NATA.--.HHN I 0.0048 0.0001
CQ.NATA.--.HHZ I 0.0051 0.0001
CQ.TROD.--.HHE I 0.0009 3.6189e-05
CQ.TROD.--.HHN I 0.0010 3.4147e-05
CQ.TROD.--.HHZ I 0.0010 2.2366e-05
CQ.XYLS.--.HHE I 0.0027 3.2360e-05
CQ.XYLS.--.HHN I 0.0030 4.3517e-05
CQ.XYLS.--.HHZ I 0.0025 3.1923e-05
GE.CSS.--.HHE I 0.0032 2.8222e-05
GE.CSS.--.HHN I 0.0068 5.3861e-05
GE.CSS.--.HHZ I 0.0033 2.7363e-05
GE.CSS.--.HLE I 0.0035 5.3060e-05
GE.CSS.--.HLN I 0.0065 7.8345e-05
GE.CSS.--.HLZ I 0.0042 6.5408e-05

Perceived shaking Not felt Very weak Weak Light Moderate Strong Very strong Severe Violent Extreme
Potential damage None None None None Very light Light Moderate Mod./Heavy Heavy Very heavy
Max peak acc. (cm/s2) 0.98 4.9 24 66 128 235 432 814 1530 999999
Max peak vel. (cm/s) 0.07 0.4 1.9 5.8 11 22 43 83 160 999999
Instrumental intensity I II III IV V VI VII VIII IX X