Earthquake with magnitude of ML 0.9 on date 03-10-2023 and time 18:43:57 (UTC) in region 3 km NW Montevago (AG)

A magnitude ML 0.9 earthquake occured in region: 3 km NW Montevago (AG), on

  • 03-10-2023 18:43:57 (UTC)
  • 03-10-2023 20:43:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7300, 12.9790 at 14 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
Montevago AG 3 3006 3006
Salaparuta TP 4 1696 4702
Santa Margherita di Belice AG 6 6363 11065
Poggioreale TP 6 1494 12559
Partanna TP 8 10607 23166
Santa Ninfa TP 10 5043 28209
Gibellina TP 13 4115 32324
Menfi AG 15 12592 44916
Sambuca di Sicilia AG 15 5877 50793
Castelvetrano TP 17 31806 82599
Contessa Entellina PA 18 1766 84365
Salemi TP 18 10794 95159
Roccamena PA 20 1505 96664

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Mazara del Vallo (51718 inhabitants)
48 Km E of Marsala (83194 inhabitants)
52 Km SE of Trapani (68759 inhabitants)
55 Km SW of Palermo (674435 inhabitants)
61 Km SW of Bagheria (55387 inhabitants)
71 Km NW of Agrigento (59770 inhabitants)
99 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
Reviewed
Rev100
ML 0.9 2023-10-03
18:43:57
37.7298 12.979 14 2023-10-03
19:25:02
Sala Sismica INGV-Roma 121722201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-03 18:43:57 ± 0.3
Latitude 37.7298 ± 0.0081
Longitude 12.9790 ± 0.0205
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121722201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1816
Semi-minor axis of confidence ellipse (meter) 374
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 91
Circular confidence region, given by single value of horizontal uncertainty (meter) 1820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.06745
Epicentral distance of station farthest from the epicenter (degree) 0.23472
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 121722201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-03 19:25:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SCIAC.HHZ. 2023-10-03T18:44:06.94 0.6 undecidable manual S 155 26.0517 100 0.28 47
IV.MBFT.HHZ. 2023-10-03T18:44:05.66 0.3 undecidable manual S 355 24.0537 102 -0.5 65
IV.CAVT.HHZ. 2023-10-03T18:44:05.40 0.3 undecidable manual S 254 20.3685 106 0.2 72
IV.CRJA.HHZ. 2023-10-03T18:44:03.05 0.6 undecidable manual S 16 8.2806 140 0.6 45
IV.MFNL.HHZ. 2023-10-03T18:44:02.66 0.3 undecidable manual S 324 8.3805 140 0.19 74
IV.SCIAC.HHZ. 2023-10-03T18:44:02.70 0.3 undecidable manual P 155 26.0517 100 0.05 74
IV.MMGO.HHZ. 2023-10-03T18:44:01.61 0.3 undecidable manual S 182 7.4814 143 -0.72 64
IV.CAVT.HHZ. 2023-10-03T18:44:01.89 0.1 undecidable manual P 254 20.3685 106 0.08 99
IV.MBFT.HHZ. 2023-10-03T18:44:01.74 0.3 undecidable manual P 355 24.0537 102 -0.63 63
IV.MMGO.HHZ. 2023-10-03T18:44:00.05 0.1 undecidable manual P 182 7.4814 143 -0.11 100
IV.MFNL.HHZ. 2023-10-03T18:44:00.43 0.1 undecidable manual P 324 8.3805 140 0.19 99
IV.CRJA.HHZ. 2023-10-03T18:44:00.59 0.1 positive manual P 16 8.2806 140 0.37 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MFNL.HHN. ML:0.9 0.000087868425 0.0768 AML other m 2023-10-03T18:44:02.00
IV.MFNL.HHE. ML:1.0 0.00011471973000000001 0.064 AML other m 2023-10-03T18:44:03.01
IV.CRJA.HHN. ML:1.1 0.000136436 0.1024 AML other m 2023-10-03T18:44:03.35
IV.CRJA.HNN. ML:1.1 0.00014152579999999999 0.1152 AML other m 2023-10-03T18:44:03.41
IV.CRJA.HHE. ML:1.4 0.000278596385 0.1536 AML other m 2023-10-03T18:44:03.32
IV.CRJA.HNE. ML:1.5 0.00034649999999999997 0.32 AML other m 2023-10-03T18:44:03.32
IV.MBFT.HHN. ML:0.7 0.000027999999999999996 0.8 AML other m 2023-10-03T18:44:05.98
IV.MBFT.HHE. ML:0.6 0.00002275 0.42 AML other m 2023-10-03T18:44:06.62
IV.CAVT.HNE. ML:0.7 0.000027611155999999997 0.2176 AML other m 2023-10-03T18:44:05.64
IV.CAVT.HNN. ML:0.6 0.000026911841999999997 0.1664 AML other m 2023-10-03T18:44:05.59
IV.CAVT.HHE. ML:0.8 0.00004186053 0.1792 AML other m 2023-10-03T18:44:05.64
IV.CAVT.HHN. ML:0.9 0.000053677774999999994 0.1408 AML other m 2023-10-03T18:44:05.61
IV.SCIAC.HHE. ML:0.9 0.000037563360000000004 0.1152 AML other m 2023-10-03T18:44:07.32
IV.SCIAC.HHN. ML:0.8 0.00003230829 0.1152 AML other m 2023-10-03T18:44:07.88
IV.SCIAC.HNE. ML:0.9 0.000038148495 0.1152 AML other m 2023-10-03T18:44:07.32
IV.SCIAC.HNN. ML:0.8 0.000028621399999999997 0.0896 AML other m 2023-10-03T18:44:07.88
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