Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 18-07-2019 and time 18:57:49 (UTC) in region 5 km E Menfi (AG)

A magnitude ML 2.4 earthquake occured in region: 5 km E Menfi (AG), on

  • 18-07-2019 18:57:49 (UTC)
  • 18-07-2019 20:57:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.5990, 13.0220 at 9 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
Menfi AG 5 12592 12592
Sambuca di Sicilia AG 10 5877 18469
Santa Margherita di Belice AG 10 6363 24832
Sciacca AG 11 40928 65760
Montevago AG 12 3006 68766
Caltabellotta AG 17 3681 72447
Salaparuta TP 18 1696 74143
Partanna TP 18 10607 84750
Poggioreale TP 18 1494 86244

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Mazara del Vallo (51718 inhabitants)
56 Km E of Marsala (83194 inhabitants)
59 Km NW of Agrigento (59770 inhabitants)
65 Km SE of Trapani (68759 inhabitants)
65 Km SW of Palermo (674435 inhabitants)
69 Km SW of Bagheria (55387 inhabitants)
93 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 2.4 2019-07-18
18:57:49		 37.5992 13.0222 9 2019-11-13
14:31:07		 Bollettino Sismico Italiano INGV 73289451
Reviewed
Rev100 		ML 2.4 2019-07-18
18:57:49		 37.6002 13.0248 9 2019-07-18
19:14:04		 Sala Sismica INGV-Roma 70691381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-18 18:57:49 ± 0.31
Latitude 37.5992 ± 0.0135
Longitude 13.0222 ± 0.0148
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73289451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1634
Semi-minor axis of confidence ellipse (meter) 1052
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 321
Circular confidence region, given by single value of horizontal uncertainty (meter) 1630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.48838
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 70691381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-18 19:14:04

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 35
Type of magnitude ML
Reference to an origin 73289451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-11-13 09:57:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NDIM.HNZ. 2019-07-18T18:59:44.39 3.0 positive manual Pn 5.26 0
IV.PZUN.HHZ. 2019-07-18T18:59:31.13 3.0 undecidable manual Sn -2.91 0
IV.FOSV.EHZ. 2019-07-18T18:59:28.88 3.0 positive manual Pg 13.77 0
IV.MGR.HHZ. 2019-07-18T18:59:23.05 3.0 undecidable manual Sn 1.61 0
IV.VVLD.HHZ. 2019-07-18T18:58:58.51 3.0 positive manual Pn 2.5 0
IT.VNF1.HGZ. 2019-07-18T18:58:55.81 3.0 negative manual Pn 4.27 0
IV.LRP.EHZ. 2019-07-18T18:58:52.07 3.0 undecidable manual Pn -0.86 0
IV.DGI.HHZ. 2019-07-18T18:58:51.25 3.0 undecidable manual Pn 2.48 0
IV.HLNI.HHZ. 2019-07-18T18:58:17.74 0.3 undecidable manual P 99 165.2124 50 1.06 0
IV.RAFF.HHZ. 2019-07-18T18:58:12.67 0.1 undecidable manual P 109 125.2746 50 2.15 0
IV.USI.HHZ. 2019-07-18T18:58:12.00 0.6 undecidable manual P 6 123.7872 50 1.71 0
IV.PLLN.EHN. 2019-07-18T18:58:11.39 0.1 undecidable manual P 66 107.5146 50 3.6 0
IV.PETRA.HHN. 2019-07-18T18:58:10.63 0.3 undecidable manual P 74 99.3228 50 4.11 0
IV.CSLB.HHZ. 2019-07-18T18:58:09.33 0.3 undecidable manual P 67 98.2239 50 2.97 0
IV.GIB.HHE. 2019-07-18T18:58:09.28 0.3 undecidable manual P 63 98.124 50 2.94 0
IV.CLTA.HHN. 2019-07-18T18:58:09.14 0.1 undecidable manual P 120 96.2259 50 3.1 0
IV.CMDO.HHZ. 2019-07-18T18:58:07.68 0.6 undecidable manual P 102 71.9724 50 5.36 0
IV.FAVR.HHN. 2019-07-18T18:58:06.33 0.1 undecidable manual P 123 67.6767 50 4.68 0
IV.ALJA.HHZ. 2019-07-18T18:58:04.35 0.6 undecidable manual P 75 66.378 50 2.91 0
IV.ERC.EHN. 2019-07-18T18:58:03.28 0.3 undecidable manual P 322 61.7937 50 2.54 1
IV.MBFT.HHZ. 2019-07-18T18:58:02.30 0.3 undecidable manual S 351 38.9277 50 -0.55 47
IV.SOLUN.HHE. 2019-07-18T18:58:02.04 0.6 undecidable manual P 39 70.6737 50 -0.06 0
IV.CRJA.HHZ. 2019-07-18T18:57:59.03 0.3 undecidable manual S 356 22.5552 112 1.07 54
IV.CAVT.HHZ. 2019-07-18T18:57:59.17 0.3 undecidable manual S 291 25.0527 110 0.4 70
IV.MARS.EHZ. 2019-07-18T18:57:58.06 0.1 undecidable manual P 293 43.623 50 0.12 54
IV.CORL.HHZ. 2019-07-18T18:57:57.68 0.3 undecidable manual P 37 41.0256 50 0.14 47
IV.MFNL.HHZ. 2019-07-18T18:57:57.78 0.3 undecidable manual S 338 22.9548 112 -0.34 71
IV.MBFT.HHZ. 2019-07-18T18:57:56.76 0.1 positive manual P 351 38.9277 50 -0.46 64
IV.CRJA.HHZ. 2019-07-18T18:57:54.68 0.1 positive manual P 356 22.5552 112 0.28 97
IV.MFNL.HHZ. 2019-07-18T18:57:54.80 0.1 positive manual P 338 22.9548 112 0.31 96
IV.CAVT.HHZ. 2019-07-18T18:57:54.92 0.1 negative manual P 291 25.0527 110 0.05 100
IV.MMGO.HHE. 2019-07-18T18:57:52.92 0.1 undecidable manual S 330 7.9809 138 -0.82 81
IV.MMGO.HHE. 2019-07-18T18:57:51.82 0.1 undecidable manual P 330 7.9809 138 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRJA.HHN. ML:3.0 0.006585 0.78 AML other m 2019-07-18T18:57:59.68
IV.CAVT.HHE. ML:2.9 0.0052 0.1 AML other m 2019-07-18T18:57:59.32
IV.CRJA.HHE. ML:3.2 0.00972 0.52 AML other m 2019-07-18T18:57:59.09
IV.CAVT.HHN. ML:2.9 0.004455 0.84 AML other m 2019-07-18T18:57:59.35
IV.MFNL.HHN. ML:2.7 0.003545 0.54 AML other m 2019-07-18T18:58:00.37
IV.MFNL.HHE. ML:2.9 0.005445 0.66 AML other m 2019-07-18T18:58:01.74
IV.MBFT.HHE. ML:2.8 0.002045 1.52 AML other m 2019-07-18T18:58:02.15
IV.MBFT.HHN. ML:2.8 0.0024850000000000002 0.36 AML other m 2019-07-18T18:58:03.59
IV.MBFT.HNE. ML:1.9 0.00027350000000000003 0.98 AML other m 2019-07-18T18:58:03.15
IV.MBFT.HNN. ML:1.9 0.00029949999999999996 0.36 AML other m 2019-07-18T18:58:03.59
IV.MARS.EHE. ML:2.4 0.000736 1.04 AML other m 2019-07-18T18:58:13.34
IV.MARS.EHN. ML:2.3 0.0006680000000000001 0.94 AML other m 2019-07-18T18:58:14.67
IV.ALJA.HHE. ML:2.3 0.00035499999999999996 0.96 AML other m 2019-07-18T18:58:21.50
IV.FAVR.HNE. ML:2.4 0.00046399999999999995 1.58 AML other m 2019-07-18T18:58:22.85
IV.FAVR.HHN. ML:2.4 0.0004465 1.28 AML other m 2019-07-18T18:58:22.85
IV.FAVR.HHE. ML:2.1 0.000217 1.2 AML other m 2019-07-18T18:58:23.85
IV.ALJA.HHN. ML:2.4 0.000438 0.78 AML other m 2019-07-18T18:58:25.64
IV.FAVR.HNN. ML:2.3 0.0003735 0.98 AML other m 2019-07-18T18:58:26.61
IV.CLTA.HHE. ML:2.0 0.00010935 1.38 AML other m 2019-07-18T18:58:26.96
IV.CMDO.HHE. ML:2.0 0.000156 0.74 AML other m 2019-07-18T18:58:27.05
IV.CLTA.HHN. ML:2.0 0.00011599999999999999 1.52 AML other m 2019-07-18T18:58:28.03
IV.CSLB.HHN. ML:2.0 0.0001126 0.82 AML other m 2019-07-18T18:58:28.07
IV.CSLB.HHE. ML:2.1 0.0001365 0.74 AML other m 2019-07-18T18:58:28.50
IV.GIB.HHE. ML:2.7 0.000494 0.94 AML other m 2019-07-18T18:58:28.81
IV.PLLN.EHE. ML:2.5 0.00029749999999999997 0.42 AML other m 2019-07-18T18:58:30.54
IV.RESU.HHE. ML:2.3 0.000248 0.52 AML other m 2019-07-18T18:58:33.04
IV.CMDO.HHN. ML:2.0 0.00016099999999999998 1.38 AML other m 2019-07-18T18:58:33.25
IV.USI.HHE. ML:2.4 0.000158 0.62 AML other m 2019-07-18T18:58:37.28
IV.USI.HHN. ML:2.8 0.000448 0.54 AML other m 2019-07-18T18:58:38.28
IV.HLNI.HHN. ML:2.2 0.00005995 1.18 AML other m 2019-07-18T18:58:45.65
IV.IACL.HHE. ML:2.4 0.00011185000000000001 1.48 AML other m 2019-07-18T18:58:51.97
IV.IACL.HHN. ML:2.4 0.00011949999999999999 0.54 AML other m 2019-07-18T18:58:52.27
IV.HLNI.HHE. ML:2.1 0.00005325000000000001 1 AML other m 2019-07-18T18:58:57.58
IV.LRP.EHE. ML:2.6 0.00001735 0.54 AML other m 2019-07-18T18:59:51.69
IV.LRP.EHN. ML:2.6 0.0000149 0.48 AML other m 2019-07-18T19:00:01.61
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