Earthquake with magnitude of ML 1.2 on date 30-09-2020 and time 23:14:52 (Italy) in region 3 km W Gibellina (TP)

A magnitude ML 1.2 earthquake occured in region: 3 km W Gibellina (TP), on

  • 30-09-2020 21:14:52 (UTC)
  • 30-09-2020 23:14:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.82, 12.84 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Gibellina TP 3 4115 4115
Salemi TP 3 10794 14909
Vita TP 6 2056 16965
Santa Ninfa TP 6 5043 22008
Calatafimi-Segesta TP 11 6712 28720
Partanna TP 12 10607 39327
Castelvetrano TP 16 31806 71133
Salaparuta TP 16 1696 72829
Poggioreale TP 18 1494 74323
Montevago AG 19 3006 77329

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Mazara del Vallo (51718 inhabitants)
36 Km E of Marsala (83194 inhabitants)
36 Km SE of Trapani (68759 inhabitants)
57 Km SW of Palermo (674435 inhabitants)
66 Km W of Bagheria (55387 inhabitants)
87 Km NW of Agrigento (59770 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.2 2020-09-30
21:14:52
37.82 12.84 11 2020-09-30
21:23:44
Sala Sismica INGV-Roma 83396271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-30 21:14:52 ± 0.39
Latitude 37.82 ± 0.02
Longitude 12.84 ± 0.02
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83396271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2563
Semi-minor axis of confidence ellipse (meter) 745
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 327
Circular confidence region, given by single value of horizontal uncertainty (meter) 2560
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.19156
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 83396271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-30 21:23:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APEC.HHZ. 2020-09-30T21:16:17.51 3.0 positive manual Pg 18.84 0
IV.CMPR.HHZ. 2020-09-30T21:16:04.88 3.0 undecidable manual Sg 5.29 0
IT.FIE.HGZ. 2020-09-30T21:16:02.34 3.0 undecidable manual Pn -1.62 0
IV.SPS2.HHZ. 2020-09-30T21:16:00.53 3.0 undecidable manual Sg 4.66 0
IV.MTCE.HHZ. 2020-09-30T21:15:33.90 3.0 negative manual Pn -4.06 0
IV.CMPR.HHZ. 2020-09-30T21:15:28.73 3.0 undecidable manual Pg 7.27 0
IV.AGST.EHZ. 2020-09-30T21:15:28.99 3.0 undecidable manual Sn -0.15 0
IV.MUCR.HHZ. 2020-09-30T21:15:28.20 3.0 undecidable manual Sg 4.7 0
IV.MTGR.HHZ. 2020-09-30T21:15:11.55 3.0 undecidable manual Sg 0.03 0
X3.T1582.EHZ. 2020-09-30T21:14:57.30 0.6 undecidable manual S 213 0.0872 138 0.1 70
IV.MMGO.HHE. 2020-09-30T21:14:57.10 0.6 undecidable manual P 145 0.1916 50 0.16 68
IV.PLLN.EHZ. 2020-09-30T21:14:56.49 3.0 undecidable manual P 0.14 0
X3.T1574.HHZ. 2020-09-30T21:14:56.67 0.6 undecidable manual S 330 0.0261 165 0.65 62
IV.CRJA.HHE. 2020-09-30T21:14:56.37 0.3 undecidable manual P 98 0.1322 126 0.55 94
X3.T1581.EHZ. 2020-09-30T21:14:56.12 0.6 undecidable manual P 286 0.1241 128 0.44 65
X3.T1573.HHZ. 2020-09-30T21:14:56.97 0.6 undecidable manual S 59 0.0845 139 -0.14 70
IV.SCIAR.HHZ. 2020-09-30T21:14:55.44 3.0 positive manual P 0.84 0
IV.MTGR.HHZ. 2020-09-30T21:14:54.17 3.0 negative manual P -0.28 0
X3.T1573.HHZ. 2020-09-30T21:14:54.61 0.3 undecidable manual P 59 0.0845 139 -0.42 98
X3.T1582.EHZ. 2020-09-30T21:14:54.60 0.3 positive manual P 213 0.0872 138 -0.48 97
X3.T1574.HHZ. 2020-09-30T21:14:54.01 0.3 negative manual P 330 0.0261 165 -0.4 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
X3.T1574.HHE. ML:0.9 0.00014188402 0.192 AML other m 2020-09-30T21:14:57.04
X3.T1574.HHN. ML:1.2 0.00023778435 0.1792 AML other m 2020-09-30T21:14:56.86
X3.T1574.HNE. ML:0.9 0.000138089605 0.2048 AML other m 2020-09-30T21:14:56.92
X3.T1574.HNN. ML:1.1 0.00022112435 0.1664 AML other m 2020-09-30T21:14:56.84
IV.MTGR.HHE. ML:0.3 2.6729105E-5 0.128 AML other m 2020-09-30T21:15:15.69
IV.MTGR.HHN. ML:0.5 3.668263E-5 0.0768 AML other m 2020-09-30T21:15:16.03
X3.T1582.EHE. ML:1 0.00014161725 1.6512 AML other m 2020-09-30T21:15:09.75
X3.T1582.EHN. ML:1.1 0.000154514615 1.28 AML other m 2020-09-30T21:15:07.99
X3.T1582.HNE. ML:1.8 0.0008716091 0.768 AML other m 2020-09-30T21:15:05.29
X3.T1582.HNN. ML:2 0.001172333 0.4992 AML other m 2020-09-30T21:15:08.56
X3.T1573.HHN. ML:0.8 7.680269E-5 1.792 AML other m 2020-09-30T21:15:16.38
X3.T1573.HNE. ML:1 0.00013878965 1.0496 AML other m 2020-09-30T21:15:14.13
X3.T1573.HNN. ML:1.2 0.0002060556 1.536 AML other m 2020-09-30T21:15:14.14
IV.SCIAR.HHE. ML:1.3 2.3585355E-5 0.7168 AML other m 2020-09-30T21:15:02.41
IV.SCIAR.HNE. ML:2.1 0.0001727435 1.0368 AML other m 2020-09-30T21:15:17.73
IV.SCIAR.HNN. ML:2 0.00013153675 0.8704 AML other m 2020-09-30T21:15:15.53
X3.T1581.EHN. ML:1.2 0.00016890995 1.7536 AML other m 2020-09-30T21:15:17.95
X3.T1581.HNN. ML:1.9 0.0008509842 0.9088 AML other m 2020-09-30T21:15:03.00
IV.PLLN.EHE. ML:1.6 3.5069225E-5 0.704 AML other m 2020-09-30T21:15:04.52
IV.PLLN.EHN. ML:1.6 3.6729835E-5 0.6272 AML other m 2020-09-30T21:15:17.96
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download