Earthquake with magnitude of ML 1.3 on date 18-07-2019 and time 23:44:53 (Italy) in region 6 km E Menfi (AG)

A magnitude ML 1.3 earthquake occured in region: 6 km E Menfi (AG), on

  • 18-07-2019 21:44:53 (UTC)
  • 18-07-2019 23:44:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.58, 13.04 at 10 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
Menfi AG 7 12592 12592
Sciacca AG 9 40928 53520
Sambuca di Sicilia AG 10 5877 59397
Santa Margherita di Belice AG 12 6363 65760
Montevago AG 14 3006 68766
Caltabellotta AG 16 3681 72447
Salaparuta TP 20 1696 74143

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)
66 Km SW of Palermo (674435 inhabitants)
67 Km SE of Trapani (68759 inhabitants)
69 Km SW of Bagheria (55387 inhabitants)
91 Km W of Caltanissetta (63360 inhabitants)
Recent and historical Seismicity
Seismic hazard
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 ( 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
Rev 100 ML 1.3 2019-07-18
37.58 13.04 10 2019-07-18
Sala Sismica INGV-Roma 70692931
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2019-07-18 21:44:53 ± 0.77
Latitude 37.58 ± 0.03
Longitude 13.04 ± 0.03
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70692931


Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3749
Semi-minor axis of confidence ellipse (meter) 2375
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 332
Circular confidence region, given by single value of horizontal uncertainty (meter) 3750
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 301
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.51
Epicentral distance of station closest to the epicenter (degree) 0.09353
Epicentral distance of station farthest from the epicenter (degree) 0.36962
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information


Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 70692931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-18 21:53:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MBFT.HHZ. 2019-07-18T21:45:06.83 0.3 undecidable manual S 350 0.3696 50 -0.38 67
IV.MFNL.HHZ. 2019-07-18T21:45:03.73 0.3 undecidable manual S 336 0.2275 111 0.93 41
IV.CAVT.HHZ. 2019-07-18T21:45:03.35 0.3 undecidable manual S 294 0.2428 109 -0.01 67
IV.MBFT.HHZ. 2019-07-18T21:45:01.16 0.3 undecidable manual P 350 0.3696 50 -0.23 68
IV.CRJA.HHZ. 2019-07-18T21:44:59.15 0.3 undecidable manual P 353 0.2212 111 0.44 65
IV.MFNL.HHZ. 2019-07-18T21:44:59.37 0.3 undecidable manual P 336 0.2275 111 0.52 62
IV.CAVT.HHZ. 2019-07-18T21:44:59.33 0.3 undecidable manual P 294 0.2428 109 0.16 70
IV.MMGO.HHE. 2019-07-18T21:44:57.43 0.3 undecidable manual S 329 0.0935 132 -0.88 74
IV.MMGO.HHE. 2019-07-18T21:44:56.19 0.1 undecidable manual P 329 0.0935 132 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRJA.HHE. ML:1.5 0.00017563525 0.2048 AML other m 2019-07-18T21:45:03.69
IV.CRJA.HHN. ML:1.5 0.0001925875 0.2048 AML other m 2019-07-18T21:45:03.74
IV.MFNL.HHE. ML:1.2 0.00010634341 0.5248 AML other m 2019-07-18T21:45:08.15
IV.MFNL.HHN. ML:1.1 6.809947E-5 0.256 AML other m 2019-07-18T21:45:09.68
IV.MBFT.HHE. ML:1.2 5.2626395E-5 0.512 AML other m 2019-07-18T21:45:07.51
IV.MBFT.HHN. ML:1.2 4.980929E-5 0.384 AML other m 2019-07-18T21:45:08.13
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download