Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 30-09-2020 and time 06:03:28 (UTC) in region 3 km S Vita (TP)

A magnitude ML 1.5 earthquake occured in region: 3 km S Vita (TP), on

  • 30-09-2020 06:03:28 (UTC)
  • 30-09-2020 08:03:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8470, 12.8150 at 14 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
Vita TP 3 2056 2056
Salemi TP 4 10794 12850
Gibellina TP 6 4115 16965
Calatafimi-Segesta TP 9 6712 23677
Santa Ninfa TP 10 5043 28720
Partanna TP 15 10607 39327
Castelvetrano TP 19 31806 71133
Salaparuta TP 20 1696 72829
Alcamo TP 20 45307 118136

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Mazara del Vallo (51718 inhabitants)
33 Km SE of Trapani (68759 inhabitants)
34 Km E of Marsala (83194 inhabitants)
57 Km SW of Palermo (674435 inhabitants)
66 Km W of Bagheria (55387 inhabitants)
90 Km NW of Agrigento (59770 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 1.5 2020-09-30
06:03:28		 37.8468 12.8148 14 2021-02-26
14:55:57		 Bollettino Sismico Italiano INGV 83444671
Reviewed
Rev100 		ML 1.5 2020-09-30
06:03:28		 37.8505 12.7952 14 2020-09-30
06:11:12		 Sala Sismica INGV-Roma 83380781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-30 06:03:28 ± 0.11
Latitude 37.8468 ± 0.0045
Longitude 12.8148 ± 0.0046
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83444671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 533
Semi-minor axis of confidence ellipse (meter) 144
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 152
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.17447
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 83444671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-28 11:46:06

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 83380781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-30 06:11:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FOSV.EHZ. 2020-09-30T06:05:03.86 3.0 undecidable manual Sn -3.13 0
AC.VLO.HHZ. 2020-09-30T06:05:00.02 3.0 undecidable manual Sg 14.38 0
IV.CAMP.HHZ. 2020-09-30T06:04:51.66 3.0 undecidable manual Sg 5.98 0
SL.LJU.BHZ. 2020-09-30T06:04:47.17 3.0 undecidable manual Pn 0.74 0
CR.ZAG.BHZ. 2020-09-30T06:04:44.30 3.0 positive manual Pn 0.29 0
GU.RNCA.HHZ. 2020-09-30T06:04:40.94 3.0 undecidable manual Pn -4.98 0
IV.LRP.EHZ. 2020-09-30T06:04:28.44 3.0 undecidable manual Sg 4.37 0
IV.RMP.HHZ. 2020-09-30T06:04:26.64 3.0 undecidable manual Sn -7.86 0
IV.RIBO.EHZ.01 2020-09-30T06:04:23.30 3.0 undecidable manual Pg 6.74 0
IV.VVLD.HHZ. 2020-09-30T06:04:20.81 3.0 undecidable manual Sn -8.19 0
IV.PTRJ.HHZ. 2020-09-30T06:04:18.13 3.0 undecidable manual Sg 4.76 0
IV.ARRO.EHZ. 2020-09-30T06:04:07.50 3.0 positive manual Pg 4.11 0
IV.TOLF.HHZ. 2020-09-30T06:04:07.39 3.0 undecidable manual Pg 6.35 0
IV.VCEL.EHZ. 2020-09-30T06:04:03.14 3.0 undecidable manual Pg 5.62 0
IV.ACER.HHZ. 2020-09-30T06:04:00.72 3.0 undecidable manual Sn -1.9 0
IV.CMPR.HHZ. 2020-09-30T06:03:45.83 3.0 undecidable manual S -2.35 0
IV.LRP.EHZ. 2020-09-30T06:03:44.03 3.0 positive manual Pn -4.37 0
IV.PTRJ.HHZ. 2020-09-30T06:03:44.78 3.0 undecidable manual Pg 2.39 0
IV.CAVT.HHZ. 2020-09-30T06:03:36.32 0.3 undecidable manual S 196 19.3695 111 -0.04 72
IV.MBFT.HHZ. 2020-09-30T06:03:35.29 0.6 undecidable manual S 48 16.3725 117 -0.34 46
X3.T1582.EHZ. 2020-09-30T06:03:34.56 0.3 undecidable manual S 196 11.6772 130 -0.01 74
IV.MFNL.HHZ. 2020-09-30T06:03:34.43 0.3 undecidable manual S 123 11.2776 131 -0.08 73
X3.T1573.HNZ. 2020-09-30T06:03:34.35 0.3 undecidable manual S 80 10.2786 135 0.05 74
X3.T1581.EHZ. 2020-09-30T06:03:34.54 0.3 undecidable manual S 274 11.1777 132 0.06 73
IV.MTGR.HHZ. 2020-09-30T06:03:33.32 0.3 undecidable manual S 317 7.0929 147 -0.45 69
X3.T1574.HHZ. 2020-09-30T06:03:33.48 0.3 undecidable manual S 129 0.7992 176 0.25 72
IV.MFNL.HHZ. 2020-09-30T06:03:32.06 0.1 undecidable manual P 123 11.2776 131 0.06 99
X3.T1581.EHZ. 2020-09-30T06:03:32.15 0.1 negative manual P 274 11.1777 132 0.17 96
IV.CRJA.HHZ. 2020-09-30T06:03:32.99 0.3 undecidable manual P 107 17.3715 115 0.2 71
IV.MBFT.HHZ. 2020-09-30T06:03:32.69 0.3 undecidable manual P 48 16.3725 117 0.04 74
IV.CAVT.HHZ. 2020-09-30T06:03:32.94 0.1 undecidable manual P 196 19.3695 111 -0.13 95
X3.T1574.HHZ. 2020-09-30T06:03:31.33 0.1 undecidable manual P 129 0.7992 176 0.07 100
X3.T1573.HNZ. 2020-09-30T06:03:31.96 0.3 undecidable manual P 80 10.2786 135 0.08 74
IV.MTGR.HHZ. 2020-09-30T06:03:31.50 0.1 undecidable manual P 317 7.0929 147 -0.07 99
X3.T1582.EHZ. 2020-09-30T06:03:31.93 0.1 undecidable manual P 196 11.6772 130 -0.11 97
IT.LNT.HGZ. 2020-09-30T06:03:28.70 3.0 undecidable manual Pn 2.02 0
IV.CMPR.HHZ. 2020-09-30T06:03:26.22 3.0 undecidable manual P -2.02 0
IV.SCIAR.HHZ. 2020-09-30T06:03:22.54 3.0 undecidable manual P -0.74 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MFNL.HHN. ML:1.4 0.000258 0.06 AML other m 2020-09-30T06:03:32.39
IV.MTGR.HHE. ML:1.1 0.000156 0.58 AML other m 2020-09-30T06:03:33.45
IV.MTGR.HHN. ML:1.3 0.000207 0.08 AML other m 2020-09-30T06:03:33.51
X3.T1574.HHN. ML:2.1 0.0014849999999999998 0.16 AML other m 2020-09-30T06:03:34.20
X3.T1574.HNN. ML:2.1 0.0015 0.16 AML other m 2020-09-30T06:03:34.18
X3.T1574.HHE. ML:2.1 0.00148 0.96 AML other m 2020-09-30T06:03:34.39
X3.T1582.EHE. ML:1.9 0.0007505 0.6 AML other m 2020-09-30T06:03:34.37
IV.MFNL.HHE. ML:1.4 0.0002215 1.44 AML other m 2020-09-30T06:03:34.76
X3.T1574.HNE. ML:2.0 0.001435 0.96 AML other m 2020-09-30T06:03:34.37
X3.T1582.EHN. ML:1.8 0.000683 1.12 AML other m 2020-09-30T06:03:35.37
IV.CRJA.HHN. ML:1.2 0.00010815 0.56 AML other m 2020-09-30T06:03:37.39
IV.CRJA.HHE. ML:1.2 0.0001095 0.56 AML other m 2020-09-30T06:03:39.42
X3.T1581.EHN. ML:1.1 0.0001325 0.64 AML other m 2020-09-30T06:03:40.20
X3.T1581.EHE. ML:1.2 0.0001435 0.88 AML other m 2020-09-30T06:03:41.45
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