Earthquake with magnitude of ML 1.3 on date 22-07-2019 and time 00:46:53 (UTC) in region 4 km E Menfi (AG)

A magnitude ML 1.3 earthquake occured in region: 4 km E Menfi (AG), on

  • 22-07-2019 00:46:53 (UTC)
  • 22-07-2019 02:46:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6, 13.01 at 9 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 4 12592 12592
Santa Margherita di Belice AG 11 6363 18955
Sambuca di Sicilia AG 11 5877 24832
Montevago AG 12 3006 27838
Sciacca AG 12 40928 68766
Partanna TP 17 10607 79373
Salaparuta TP 18 1696 81069
Poggioreale TP 19 1494 82563
Caltabellotta AG 19 3681 86244

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Mazara del Vallo (51718 inhabitants)
55 Km E of Marsala (83194 inhabitants)
60 Km NW of Agrigento (59770 inhabitants)
64 Km SE of Trapani (68759 inhabitants)
66 Km SW of Palermo (674435 inhabitants)
70 Km SW of Bagheria (55387 inhabitants)
94 Km W of Caltanissetta (63360 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
Rev 100 ML 1.3 2019-07-22
00:46:53
37.6 13.01 9 2019-07-22
00:54:18
Sala Sismica INGV-Roma 70783671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-22 00:46:53 ± 0.46
Latitude 37.60 ± 0.02
Longitude 13.01 ± 0.02
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70783671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2377
Semi-minor axis of confidence ellipse (meter) 1573
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 325
Circular confidence region, given by single value of horizontal uncertainty (meter) 2380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 254
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 12
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) 0.37682
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 70783671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-22 00:54:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PLLN.EHZ. 2019-07-22T00:47:21.16 3.0 undecidable manual Sn -4.43 0
IV.CMDO.HHZ. 2019-07-22T00:47:19.38 3.0 undecidable manual Sg 0.02 0
IV.AGST.EHZ. 2019-07-22T00:47:09.72 3.0 undecidable manual Pn -0.02 0
IV.CORL.HHE. 2019-07-22T00:47:08.09 0.6 undecidable manual S 38 0.3768 0.24 47
IV.MBFT.HHZ. 2019-07-22T00:47:06.70 0.3 undecidable manual S 353 0.3498 50 -0.35 69
IV.CAVT.HHZ. 2019-07-22T00:47:03.13 0.6 undecidable manual S 292 0.2149 111 0.47 46
IV.CRJA.HHZ. 2019-07-22T00:47:03.00 0.3 undecidable manual S 359 0.2032 112 0.77 62
IV.CORL.HHE. 2019-07-22T00:47:01.85 0.6 undecidable manual P 38 0.3768 -0.06 49
IV.MFNL.HHZ. 2019-07-22T00:47:01.65 0.6 undecidable manual S 341 0.2032 112 -0.61 44
IV.MBFT.HHZ. 2019-07-22T00:47:00.91 0.6 undecidable manual P 353 0.3498 50 -0.54 44
IV.CLTA.HHZ. 2019-07-22T00:47:00.66 3.0 undecidable manual P 0.02 0
IV.MFNL.HHZ. 2019-07-22T00:46:59.10 0.3 undecidable manual P 341 0.2032 112 0.42 70
IV.CAVT.HHZ. 2019-07-22T00:46:59.03 0.1 undecidable manual P 292 0.2149 111 0.12 99
IV.CRJA.HHZ. 2019-07-22T00:46:58.94 0.1 positive manual P 359 0.2032 112 0.27 96
IV.MMGO.HHZ. 2019-07-22T00:46:57.11 0.3 undecidable manual S 339 0.0674 141 -0.8 63
IV.MMGO.HHZ. 2019-07-22T00:46:55.96 0.1 undecidable manual P 339 0.0674 141 -0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRJA.HHE. ML:1.5 0.00019389645 0.14 AML other m 2019-07-22T00:47:03.38
IV.CRJA.HHN. ML:1.5 0.0001885342 0.1 AML other m 2019-07-22T00:47:03.34
IV.CAVT.HHE. ML:1.3 0.00012014919 0.38 AML other m 2019-07-22T00:47:05.18
IV.CAVT.HHN. ML:1.4 0.00014634825 0.1 AML other m 2019-07-22T00:47:03.47
IV.MFNL.HHE. ML:1.2 0.000101242605 0.14 AML other m 2019-07-22T00:47:05.96
IV.MFNL.HHN. ML:1.1 7.990662E-5 0.12 AML other m 2019-07-22T00:47:02.76
IV.MBFT.HHE. ML:1.1 4.6411575E-5 0.2 AML other m 2019-07-22T00:47:07.18
IV.MBFT.HHN. ML:1.2 5.479744E-5 0.3 AML other m 2019-07-22T00:47:07.64
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