Earthquake with magnitude of ML 2.1 on date 18-07-2019 and time 21:35:08 (UTC) in region 7 km SE Menfi (AG)

A magnitude ML 2.1 earthquake occured in region: 7 km SE Menfi (AG), on

  • 18-07-2019 21:35:08 (UTC)
  • 18-07-2019 23:35:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.5630, 13.0280 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.

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 7 12592 12592
Sciacca AG 8 40928 53520
Sambuca di Sicilia AG 12 5877 59397
Santa Margherita di Belice AG 15 6363 65760
Montevago AG 16 3006 68766
Caltabellotta AG 17 3681 72447

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Mazara del Vallo (51718 inhabitants)
57 Km NW of Agrigento (59770 inhabitants)
58 Km E of Marsala (83194 inhabitants)
68 Km SE of Trapani (68759 inhabitants)
68 Km SW of Palermo (674435 inhabitants)
72 Km SW of Bagheria (55387 inhabitants)
92 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 2.1 2019-07-18
21:35:08
37.5627 13.0278 6 2019-11-13
14:31:08
Bollettino Sismico Italiano INGV 73812971
Reviewed
Rev100
ML 2.1 2019-07-18
21:35:08
37.5798 13.0252 11 2019-07-18
21:45:16
Sala Sismica INGV-Roma 70692651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-18 21:35:08 ± 0.38
Latitude 37.5627 ± 0.0144
Longitude 13.0278 ± 0.0159
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73812971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1497
Semi-minor axis of confidence ellipse (meter) 1139
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 322
Circular confidence region, given by single value of horizontal uncertainty (meter) 1500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.10702
Epicentral distance of station farthest from the epicenter (degree) 0.89662
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 73812971
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-11-13 10:05:50

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 70692651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-18 21:45:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIB.HHE. 2019-07-18T21:35:28.96 0.6 undecidable manual P 61 99.5226 50 3.45 0
IV.CLTA.HHN. 2019-07-18T21:35:28.15 0.1 undecidable manual P 118 93.8394 50 3.52 0
IV.FAVR.HHZ. 2019-07-18T21:35:25.49 0.1 undecidable manual P 120 65.1903 50 5.28 0
IV.ALJA.HHZ. 2019-07-18T21:35:24.76 0.3 undecidable manual P 72 66.9774 50 4.26 0
IV.SOLUN.HHE. 2019-07-18T21:35:23.70 0.6 undecidable manual P 37 73.4709 50 2.2 0
IV.CORL.HHZ. 2019-07-18T21:35:22.06 0.6 undecidable manual S 33 44.0226 50 -1.35 3
IV.MBFT.HHZ. 2019-07-18T21:35:21.25 0.6 undecidable manual S 351 43.0236 50 -1.9 3
IV.CRJA.HHZ. 2019-07-18T21:35:18.04 0.1 undecidable manual S 356 26.5512 103 0.41 82
IV.MFNL.HHZ. 2019-07-18T21:35:17.90 0.6 undecidable manual S 340 26.9508 103 0.14 43
IV.CAVT.HHZ. 2019-07-18T21:35:17.94 0.3 undecidable manual S 298 27.1506 103 0.11 64
IV.CORL.HHZ. 2019-07-18T21:35:16.61 0.3 undecidable manual P 33 44.0226 50 -0.35 6
IV.MBFT.HHZ. 2019-07-18T21:35:15.75 0.1 undecidable manual P 351 43.0236 50 -1.06 9
IV.CAVT.HHZ. 2019-07-18T21:35:13.84 0.1 undecidable manual P 298 27.1506 103 0.1 85
IV.CRJA.HHZ. 2019-07-18T21:35:13.78 0.1 positive manual P 356 26.5512 103 0.16 86
IV.MFNL.HHZ. 2019-07-18T21:35:13.77 0.3 undecidable manual P 340 26.9508 103 0.08 65
IV.MMGO.HHE. 2019-07-18T21:35:11.98 0.3 undecidable manual S 338 11.877 118 -0.85 59
IV.MMGO.HHE. 2019-07-18T21:35:10.82 0.1 undecidable manual P 338 11.877 118 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRJA.HHN. ML:2.3 0.00111820705 0.1792 AML other m 2019-07-18T21:35:18.29
IV.CAVT.HHE. ML:2.1 0.00072917855 0.1024 AML other m 2019-07-18T21:35:18.21
IV.CRJA.HHE. ML:2.2 0.00103921565 1.4592 AML other m 2019-07-18T21:35:18.26
IV.CAVT.HHN. ML:2.1 0.0006815867 0.128 AML other m 2019-07-18T21:35:18.39
IV.MFNL.HHE. ML:2.1 0.0006699847999999999 0.576 AML other m 2019-07-18T21:35:19.70
IV.MBFT.HHE. ML:1.9 0.00023537225 0.3328 AML other m 2019-07-18T21:35:22.07
IV.MBFT.HHN. ML:1.9 0.0002713839 0.3968 AML other m 2019-07-18T21:35:22.50
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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