Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 16-11-2020 and time 22:45:21 (Italy) in region 2 km N Montevago (AG)

A magnitude ML 2.0 earthquake occured in region: 2 km N Montevago (AG), on

  • 16-11-2020 21:45:21 (UTC)
  • 16-11-2020 22:45:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7250, 12.9990 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Montevago AG 2 3006 3006
Salaparuta TP 4 1696 4702
Santa Margherita di Belice AG 4 6363 11065
Poggioreale TP 5 1494 12559
Partanna TP 10 10607 23166
Santa Ninfa TP 12 5043 28209
Sambuca di Sicilia AG 13 5877 34086
Menfi AG 14 12592 46678
Gibellina TP 15 4115 50793
Contessa Entellina PA 16 1766 52559
Roccamena PA 19 1505 54064
Castelvetrano TP 19 31806 85870

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Mazara del Vallo (51718 inhabitants)
50 Km E of Marsala (83194 inhabitants)
54 Km SE of Trapani (68759 inhabitants)
54 Km SW of Palermo (674435 inhabitants)
60 Km SW of Bagheria (55387 inhabitants)
69 Km NW of Agrigento (59770 inhabitants)
97 Km W of Caltanissetta (63360 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.0 2020-11-16
21:45:21		 37.7247 12.9987 10 2021-02-26
14:56:10		 Bollettino Sismico Italiano INGV 85334801
Reviewed
Rev100 		ML 2.0 2020-11-16
21:45:21		 37.7263 13.003 12 2020-11-16
21:53:41		 Sala Sismica INGV-Roma 84782841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-16 21:45:21 ± 0.08
Latitude 37.7247 ± 0.0054
Longitude 12.9987 ± 0.0080
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85334801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 690
Semi-minor axis of confidence ellipse (meter) 534
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.06475
Epicentral distance of station farthest from the epicenter (degree) 0.55848
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 85334801
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-23 15:28:32

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 21
Type of magnitude ML
Reference to an origin 84782841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-16 21:53:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CORL.HHZ. 2020-11-16T21:45:33.90 0.6 undecidable manual S 55 32.745 50 0.57 41
IV.SOLUN.HHE. 2020-11-16T21:45:32.86 0.3 undecidable manual P 49 61.9935 50 -0.19 67
IV.SCIAC.HHZ. 2020-11-16T21:45:31.14 0.6 undecidable manual S 159 24.8529 50 -0.08 49
MN.CLTB.HHZ. 2020-11-16T21:45:31.69 0.6 undecidable manual S 130 25.0527 50 0.39 44
X3.T1574.HHZ. 2020-11-16T21:45:30.64 0.6 undecidable manual S 310 20.2686 117 0.77 39
IV.MBFT.HHZ. 2020-11-16T21:45:30.45 0.6 undecidable manual S 351 24.8529 50 -0.79 42
X3.T1582.EHZ. 2020-11-16T21:45:30.62 0.6 undecidable manual S 277 19.4694 118 0.97 36
IV.CAVT.HHZ. 2020-11-16T21:45:30.46 0.6 undecidable manual S 257 21.9669 115 0.06 47
IV.MARS.EHZ. 2020-11-16T21:45:29.44 0.3 undecidable manual P 275 38.2284 50 0.06 70
X3.T1573.HNZ. 2020-11-16T21:45:28.68 0.3 undecidable manual S 339 16.4724 122 -0.06 72
IV.CORL.HHZ. 2020-11-16T21:45:28.46 0.1 positive manual P 55 32.745 50 -0.07 96
IV.CRJA.HHZ. 2020-11-16T21:45:27.39 0.6 undecidable manual S 3 8.5803 140 0.74 44
MN.CLTB.HHZ. 2020-11-16T21:45:27.58 0.3 undecidable manual P 130 25.0527 50 0.22 70
IV.SCIAC.HHZ. 2020-11-16T21:45:27.14 0.1 positive manual P 159 24.8529 50 -0.18 96
IV.CAVT.HHZ. 2020-11-16T21:45:26.66 0.1 positive manual P 257 21.9669 115 -0.19 96
X3.T1582.EHZ. 2020-11-16T21:45:26.65 0.1 undecidable manual P 277 19.4694 118 0.24 94
IV.MMGO.HHZ. 2020-11-16T21:45:26.08 0.3 undecidable manual S 195 7.1928 145 -0.29 69
IV.MFNL.HHZ. 2020-11-16T21:45:26.81 0.6 undecidable manual S 318 9.879 136 -0.15 48
X3.T1574.HHZ. 2020-11-16T21:45:26.60 0.1 positive manual P 310 20.2686 117 0.06 97
IV.MBFT.HHZ. 2020-11-16T21:45:26.72 0.1 positive manual P 351 24.8529 50 -0.61 87
X3.T1573.HNZ. 2020-11-16T21:45:25.66 0.1 positive manual P 339 16.4724 122 -0.23 94
IV.CRJA.HHZ. 2020-11-16T21:45:24.94 0.1 positive manual P 3 8.5803 140 0.26 98
IV.MMGO.HHZ. 2020-11-16T21:45:24.48 0.1 positive manual P 195 7.1928 145 -0.04 98
IV.MFNL.HHZ. 2020-11-16T21:45:24.97 0.1 undecidable manual P 318 9.879 136 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MFNL.HHN. ML:1.8 0.0008503212 0.0384 AML other m 2020-11-16T21:45:26.55
X3.T1582.HNE. ML:2.1 0.0008934241 0.8352 AML other m 2020-11-16T21:45:27.89
IV.CRJA.HHE. ML:2.4 0.0030042715 0.1408 AML other m 2020-11-16T21:45:27.56
IV.CRJA.HHN. ML:2.4 0.0034767915 0.2944 AML other m 2020-11-16T21:45:27.65
IV.MFNL.HHE. ML:1.9 0.0009088441 0.0896 AML other m 2020-11-16T21:45:28.44
X3.T1573.HNN. ML:2.1 0.0011572565 0.1152 AML other m 2020-11-16T21:45:28.94
X3.T1573.HHN. ML:2.1 0.001230499 0.1152 AML other m 2020-11-16T21:45:28.90
X3.T1573.HNE. ML:2.1 0.0011547785 0.1408 AML other m 2020-11-16T21:45:29.27
X3.T1573.HHE. ML:2.2 0.0012511360000000001 0.1408 AML other m 2020-11-16T21:45:29.29
X3.T1582.EHN. ML:2.1 0.0008974908500000001 1.6928 AML other m 2020-11-16T21:45:31.90
IV.CAVT.HHE. ML:1.8 0.00041475005 0.0896 AML other m 2020-11-16T21:45:31.25
X3.T1582.EHE. ML:2.0 0.0007949117500000001 0.1408 AML other m 2020-11-16T21:45:31.36
IV.CAVT.HHN. ML:1.8 0.00044105295 0.1024 AML other m 2020-11-16T21:45:31.42
X3.T1574.HNE. ML:2.0 0.0006586376000000001 0.1664 AML other m 2020-11-16T21:45:31.77
X3.T1574.HHE. ML:2.0 0.00065402675 0.1792 AML other m 2020-11-16T21:45:31.78
X3.T1574.HHN. ML:2.1 0.0010304891000000001 0.1792 AML other m 2020-11-16T21:45:31.88
X3.T1574.HNN. ML:2.1 0.00098691795 0.1792 AML other m 2020-11-16T21:45:31.87
IV.SCIAC.HHE. ML:1.9 0.00044502435 0.1152 AML other m 2020-11-16T21:45:32.12
MN.CLTB.HHE. ML:2.7 0.0029040235 1.6416 AML other m 2020-11-16T21:45:32.18
IV.SCIAC.HHN. ML:1.8 0.00038189554999999996 1.8848 AML other m 2020-11-16T21:45:33.04
MN.CLTB.HHN. ML:2.6 0.002052552 1.6416 AML other m 2020-11-16T21:45:33.05
IV.CORL.HHN. ML:1.7 0.0002267926 0.2944 AML other m 2020-11-16T21:45:34.13
X3.T1582.HNN. ML:2.2 0.0010543008999999999 2.2528 AML other m 2020-11-16T21:45:34.83
IV.CORL.HHE. ML:1.8 0.00025074114999999996 0.2432 AML other m 2020-11-16T21:45:35.44
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download