Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 16-05-2020 and time 00:38:27 (Italy) in region 5 km SW Santa Margherita di Belice (AG)

A magnitude ML 2.2 earthquake occured in region: 5 km SW Santa Margherita di Belice (AG), on

  • 15-05-2020 22:38:27 (UTC)
  • 16-05-2020 00:38:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6530, 13.0060 at 6 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
Santa Margherita di Belice AG 5 6363 6363
Montevago AG 6 3006 9369
Menfi AG 7 12592 21961
Sambuca di Sicilia AG 9 5877 27838
Salaparuta TP 12 1696 29534
Poggioreale TP 13 1494 31028
Partanna TP 13 10607 41635
Sciacca AG 17 40928 82563
Santa Ninfa TP 18 5043 87606
Contessa Entellina PA 18 1766 89372
Castelvetrano TP 19 31806 121178

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Mazara del Vallo (51718 inhabitants)
53 Km E of Marsala (83194 inhabitants)
59 Km SE of Trapani (68759 inhabitants)
60 Km SW of Palermo (674435 inhabitants)
64 Km NW of Agrigento (59770 inhabitants)
65 Km SW of Bagheria (55387 inhabitants)
95 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 2.2 2020-05-15
22:38:27		 37.6527 13.0062 6 2020-11-19
12:37:04		 Bollettino Sismico Italiano INGV 83821371
Reviewed
Rev100 		ML 2.3 2020-05-15
22:38:26		 37.6425 13.0167 10 2020-05-15
22:50:36		 Sala Sismica INGV-Roma 79179511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-15 22:38:27 ± 0.15
Latitude 37.6527 ± 0.0081
Longitude 13.0062 ± 0.0102
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83821371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 779
Semi-minor axis of confidence ellipse (meter) 749
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 40
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.02518
Epicentral distance of station farthest from the epicenter (degree) 0.87774
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 83821371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-22 15:17:26

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 13
Type of magnitude ML
Reference to an origin 79179511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-15 22:50:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSLB.HHZ. 2020-05-15T22:38:44.94 0.6 undecidable manual P 71 97.4247 50 0.64 37
IV.MARS.EHZ. 2020-05-15T22:38:41.13 0.6 undecidable manual S 286 40.3263 98 -0.15 47
IV.SCIAR.HNZ. 2020-05-15T22:38:40.92 0.6 undecidable manual P 64 72.5718 50 0.46 41
IV.LEVAN.EHZ. 2020-05-15T22:38:40.63 0.6 undecidable manual P 303 68.9754 50 0.72 38
IV.MPG.HHE. 2020-05-15T22:38:38.26 0.3 undecidable manual P 29 64.3911 50 -0.95 52
IV.SOLUN.HHZ. 2020-05-15T22:38:38.72 0.3 undecidable manual P 43 67.0773 50 -0.9 52
IV.ERC.EHZ. 2020-05-15T22:38:38.26 0.6 undecidable manual P 319 56.2992 50 0.3 44
IV.MBFT.HHZ. 2020-05-15T22:38:38.01 0.3 undecidable manual S 352 32.8449 100 -0.72 60
MN.CLTB.HHZ. 2020-05-15T22:38:35.22 0.6 undecidable manual S 114 20.2686 105 0.78 40
IV.CAVT.HHZ. 2020-05-15T22:38:35.64 0.3 undecidable manual S 278 22.1556 104 0.55 66
IV.MFNL.HHZ. 2020-05-15T22:38:34.15 0.6 undecidable manual S 334 16.9719 108 0.78 40
IV.MARS.EHZ. 2020-05-15T22:38:34.77 0.1 undecidable manual P 286 40.3263 98 -0.54 85
IV.CRJA.HHZ. 2020-05-15T22:38:33.91 0.6 undecidable manual S 359 16.5723 109 0.7 42
IV.SCIAC.HHZ. 2020-05-15T22:38:33.49 0.3 undecidable manual S 151 17.2716 108 0.03 75
IV.MBFT.HHZ. 2020-05-15T22:38:33.17 0.3 undecidable manual P 352 32.8449 100 -0.67 62
IV.MFNL.HHZ. 2020-05-15T22:38:31.15 0.1 negative manual P 334 16.9719 108 0.41 92
MN.CLTB.HHZ. 2020-05-15T22:38:31.17 0.3 undecidable manual P 114 20.2686 105 -0.19 72
IV.CAVT.HHZ. 2020-05-15T22:38:31.74 0.1 negative manual P 278 22.1556 104 0 99
IV.CRJA.HHZ. 2020-05-15T22:38:31.21 0.1 positive manual P 359 16.5723 109 0.56 88
IV.SCIAC.HHZ. 2020-05-15T22:38:30.72 0.1 negative manual P 151 17.2716 108 -0.08 98
IV.MMGO.HHE. 2020-05-15T22:38:28.80 0.3 undecidable manual S 292 2.7972 154 -0.52 69
IV.MMGO.HHE. 2020-05-15T22:38:28.28 0.1 negative manual P 292 2.7972 154 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MFNL.HHN. ML:2.0 0.0010429675999999999 0.0768 AML other m 2020-05-15T22:38:34.66
IV.CRJA.HHE. ML:2.6 0.0038544455000000004 0.2944 AML other m 2020-05-15T22:38:34.91
IV.SCIAC.HHN. ML:2.3 0.0017335035000000001 0.192 AML other m 2020-05-15T22:38:35.15
IV.CRJA.HHN. ML:2.6 0.0036578665 0.1408 AML other m 2020-05-15T22:38:35.33
IV.SCIAC.HHE. ML:2.2 0.0015537494999999998 0.1408 AML other m 2020-05-15T22:38:35.51
IV.CAVT.HHN. ML:2.4 0.0019190555 0.1792 AML other m 2020-05-15T22:38:36.20
IV.CAVT.HHE. ML:2.4 0.0018456079999999999 1.7568 AML other m 2020-05-15T22:38:37.96
IV.MFNL.HHE. ML:2.0 0.0009025468 0.2048 AML other m 2020-05-15T22:38:37.59
IV.MBFT.HHN. ML:1.8 0.0002818407 1.7696 AML other m 2020-05-15T22:38:39.98
IV.MBFT.HHE. ML:1.7 0.00022796395000000002 0.1792 AML other m 2020-05-15T22:38:40.67
IV.MARS.EHN. ML:1.9 0.00028939975 0.32 AML other m 2020-05-15T22:38:41.38
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