INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 3.0 on date 07-07-2018 and time 20:51:37 (Italy) in region 4 km E Scillato (PA)

A magnitude ML 3.0 earthquake occured in region: 4 km E Scillato (PA), on

  • 07-07-2018 18:51:37 (UTC)
  • 07-07-2018 20:51:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.84, 13.95 at 4 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
Scillato PA 4 613 613
Polizzi Generosa PA 5 3407 4020
Caltavuturo PA 6 4017 8037
Collesano PA 9 4054 12091
Sclafani Bagni PA 9 426 12517
Castellana Sicula PA 11 3411 15928
Isnello PA 12 1589 17517
Petralia Sottana PA 13 2821 20338
Cerda PA 14 5330 25668
Gratteri PA 14 963 26631
Petralia Soprana PA 15 3360 29991
Blufi PA 15 1029 31020
Valledolmo PA 15 3594 34614
Aliminusa PA 15 1236 35850
Castelbuono PA 16 8943 44793
Bompietro PA 17 1401 46194
Montemaggiore Belsito PA 17 3365 49559
Lascari PA 18 3588 53147
Campofelice di Roccella PA 18 7537 60684
Geraci Siculo PA 18 1945 62629
Sciara PA 19 2822 65451
Resuttano CL 19 2038 67489

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km N of Caltanissetta (63360 inhabitants)
47 Km SE of Bagheria (55387 inhabitants)
60 Km SE of Palermo (674435 inhabitants)
68 Km NE of Agrigento (59770 inhabitants)
90 Km N of Gela (75827 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard
Shakemap

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap *

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap *

This map shows This map shows the distribution of peak ground acceleration expressed as per cent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap *

This map shows the distribution of peak ground velocities expressed in cm/s.
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 1000 ML 3.0 2018-07-07
18:51:37
37.84 13.95 4 2018-07-16
15:14:25
Bollettino Sismico Italiano INGV 58812531
Rev 1000 ML 3.0 2018-07-07
18:51:37
37.84 13.96 6 2018-07-11
09:16:08
Bollettino Sismico Italiano INGV 58647201
Rev 100 ML 3.0 2018-07-07
18:51:37
37.83 13.96 6 2018-07-07
19:12:28
Sala Sismica INGV-Roma 58569591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-07-07 18:51:37 ± 0.12
Latitude 37.84 ± 0.01
Longitude 13.95 ± 0.01
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 58812531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 731
Semi-minor axis of confidence ellipse (meter) 241
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 158
Circular confidence region, given by single value of horizontal uncertainty (meter) 730
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 48
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.12501
Epicentral distance of station farthest from the epicenter (degree) 1.67094
Number of stations at which the event was observed 41
Number of stations from which data was used for origin computation 41
Magnitudes information

ML:3

Field Value
Value 3
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 58647201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-07-11 09:07:05

ML:3

Field Value
Value 3
Uncertainty 0.2
Num. used stations 40
Type of magnitude ML
Reference to an origin 58569591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-07-07 19:12:28

ML:3

Field Value
Value 3
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 58812531
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-07-16 15:13:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SOI.EHZ. 2018-07-07T18:52:09.00 0.6 undecidable manual P 81 1.6709 38 0.64 28
MN.CEL.HNZ. 2018-07-07T18:52:05.99 1.0 undecidable manual P 74 1.5828 50 -0.96 13
IV.HPAC.HHE. 2018-07-07T18:52:04.17 0.3 undecidable manual P 142 1.4245 50 -0.08 56
IV.MTTG.HHE. 2018-07-07T18:52:04.24 0.3 undecidable manual P 83 1.3859 50 0.65 49
IV.MARS.EHZ. 2018-07-07T18:52:00.08 0.6 undecidable manual P 266 1.0999 50 1.38 25
IV.MPNC.HHN. 2018-07-07T18:51:59.05 0.3 undecidable manual P 74 1.143 50 -0.38 57
IV.AGST.EHZ. 2018-07-07T18:51:59.56 0.6 undecidable manual P 120 1.1673 50 -0.29 39
IV.HMDC.HHZ. 2018-07-07T18:51:58.44 1.0 undecidable manual P 143 1.1026 50 -0.3 20
IV.HAGA.HHZ. 2018-07-07T18:51:58.69 0.6 undecidable manual P 120 1.1035 50 -0.07 41
IV.USI.HHE. 2018-07-07T18:51:57.44 0.6 undecidable manual P 325 1.0558 50 -0.5 38
IV.AIO.HHE. 2018-07-07T18:51:57.48 0.6 undecidable manual P 82 1.0171 50 0.2 41
IV.CAVT.HHZ. 2018-07-07T18:51:57.97 0.6 undecidable manual P 260 0.9605 50 1.66 22
IV.IVGP.HHN. 2018-07-07T18:51:56.54 0.6 undecidable manual P 55 0.9659 50 0.14 42
IV.IVPL.HHZ. 2018-07-07T18:51:56.17 0.6 undecidable manual P 56 0.9668 50 -0.25 41
IV.HVZN.HHE. 2018-07-07T18:51:55.47 0.3 undecidable manual P 138 0.8984 50 0.22 62
IV.NOV.HHZ. 2018-07-07T18:51:55.53 0.6 undecidable manual P 78 0.9506 50 -0.61 37
IV.ILLI.HHZ. 2018-07-07T18:51:55.85 0.6 undecidable manual P 52 0.9866 50 -0.91 33
IV.EMSG.HHN. 2018-07-07T18:51:54.29 0.6 undecidable manual P 91 0.7869 50 0.95 33
IV.HLNI.HHZ. 2018-07-07T18:51:54.82 0.3 undecidable manual P 124 0.8795 50 -0.11 64
IV.SOLUN.HHZ. 2018-07-07T18:51:53.38 0.6 undecidable manual S 307 0.4137 96 -0.25 46
MN.CLTB.HHZ. 2018-07-07T18:51:53.17 0.3 undecidable manual P 246 0.6403 50 2.34 19
IV.FAVR.HHN. 2018-07-07T18:51:53.93 0.6 undecidable manual P 202 0.6187 50 3.46 2
IV.IACL.HHZ. 2018-07-07T18:51:53.12 0.1 positive manual P 24 0.7581 50 0.28 85
IV.CLTA.HHZ. 2018-07-07T18:51:53.12 0.6 undecidable manual P 179 0.6853 50 1.52 25
IV.IFIL.HHZ. 2018-07-07T18:51:53.72 0.3 undecidable manual P 34 0.8705 50 -1.05 47
IV.MBFT.HHZ. 2018-07-07T18:51:52.99 0.6 undecidable manual P 278 0.795 50 -0.49 40
IV.RAFF.HHZ. 2018-07-07T18:51:52.42 0.3 undecidable manual P 152 0.7006 50 0.56 60
IV.MUCR.HHZ. 2018-07-07T18:51:51.92 0.1 undecidable manual P 74 0.7527 50 -0.83 71
IV.EPZF.HHZ. 2018-07-07T18:51:51.94 0.6 undecidable manual P 91 0.7132 50 -0.15 44
IV.CAGR.HHE. 2018-07-07T18:51:49.00 0.3 undecidable manual P 117 0.4856 50 0.82 57
IV.MNO.SHZ. 2018-07-07T18:51:49.12 0.6 undecidable manual P 81 0.5918 50 -0.88 36
IV.MPG.SHZ. 2018-07-07T18:51:49.20 0.6 undecidable manual P 304 0.5648 50 -0.34 44
IV.CORL.HHZ. 2018-07-07T18:51:48.30 0.3 undecidable manual P 276 0.5153 50 -0.39 65
IV.GALF.HHZ. 2018-07-07T18:51:48.53 0.3 undecidable manual P 105 0.5018 50 0.06 70
IV.CMDO.HHZ. 2018-07-07T18:51:47.85 0.6 undecidable manual P 195 0.393 96 1.45 28
IV.SOLUN.HHZ. 2018-07-07T18:51:46.36 0.1 undecidable manual P 307 0.4137 96 -0.5 87
IV.GIB.HHZ. 2018-07-07T18:51:45.11 0.3 undecidable manual S 21 0.1574 104 1.25 49
IV.PLLN.EHZ. 2018-07-07T18:51:45.17 0.6 undecidable manual S 45 0.2113 101 -0.71 42
IV.RESU.HHZ. 2018-07-07T18:51:45.45 0.6 undecidable manual S 157 0.2131 101 -0.5 45
IV.ALJA.HHZ. 2018-07-07T18:51:44.94 0.3 undecidable manual S 239 0.1835 102 0.08 75
IV.CSLB.HHZ. 2018-07-07T18:51:43.64 0.6 undecidable manual S 41 0.125 108 0.98 38
IV.PLLN.EHZ. 2018-07-07T18:51:42.20 0.1 positive manual P 45 0.2113 101 -0.19 97
IV.PETRA.HHE. 2018-07-07T18:51:42.91 0.3 undecidable manual S 94 0.1277 107 0.14 74
IV.ALJA.HHZ. 2018-07-07T18:51:41.11 0.3 undecidable manual P 239 0.1835 102 -0.68 63
IV.GIB.HHZ. 2018-07-07T18:51:41.71 0.1 positive manual P 21 0.1574 104 0.49 92
IV.RESU.HHZ. 2018-07-07T18:51:41.84 0.1 undecidable manual P 157 0.2131 101 -0.58 88
IV.CSLB.HHZ. 2018-07-07T18:51:40.63 0.1 positive manual P 41 0.125 108 0.11 100
IV.PETRA.HHE. 2018-07-07T18:51:40.36 0.1 positive manual P 94 0.1277 107 -0.23 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHN. ML:2.9 0.0099431965 0.384 AML other m 2018-07-07T18:51:46.72
IV.CSLB.HHE. ML:2.8 0.007159089 1.5008 AML other m 2018-07-07T18:51:47.18
IV.GIB.HHN. ML:0 0.01212891 0.4864 AML other m 2018-07-07T18:51:51.48
IV.GIB.HHE. ML:0 0.0134 0.76 AML other m 2018-07-07T18:51:49.71
IV.PLLN.EHE. ML:0 0.00891 0.48 AML other m 2018-07-07T18:51:51.30
IV.PLLN.EHN. ML:0 0.0085 0.48 AML other m 2018-07-07T18:51:51.32
IV.SOLUN.HHE. ML:2.7 0.0015901435 1.1808 AML other m 2018-07-07T18:51:55.21
IV.SOLUN.HHN. ML:2.6 0.0011289085 0.8192 AML other m 2018-07-07T18:51:57.27
IV.MCT.BHN. ML:0 0.003765 0.88 AML other m 2018-07-07T18:52:07.10
IV.MCT.BHE. ML:0 0.003065 0.56 AML other m 2018-07-07T18:52:04.12
IV.MPG.SHN. ML:0 0.00090999175 0.4736 AML other m 2018-07-07T18:52:04.42
IV.CMDO.HHE. ML:0 0.001715 1.16 AML other m 2018-07-07T18:52:11.11
IV.MPG.SHE. ML:0 0.0009600527 0.64 AML other m 2018-07-07T18:52:06.11
IV.CMDO.HHN. ML:0 0.002435 0.42 AML other m 2018-07-07T18:52:07.44
IV.IACL.HHN. ML:3.2 0.0023011795 0.3584 AML other m 2018-07-07T18:52:07.41
IV.GALF.HNE. ML:2.3 0.00049955025 1.4112 AML other m 2018-07-07T18:52:07.28
IV.IACL.HHE. ML:3.3 0.00256589 0.4224 AML other m 2018-07-07T18:52:10.92
IV.GALF.HHN. ML:3 0.0024418045 0.6016 AML other m 2018-07-07T18:52:11.73
IV.GALF.HHE. ML:2.9 0.0019204585 0.4992 AML other m 2018-07-07T18:52:11.68
IV.GALF.HNN. ML:2.6 0.00084886445 0.5632 AML other m 2018-07-07T18:52:11.72
MN.CLTB.HHE. ML:3.8 0.0103632235 0.4992 AML other m 2018-07-07T18:52:12.15
IV.MUCR.HHN. ML:3 0.001409031 0.4608 AML other m 2018-07-07T18:52:12.54
IV.CLTA.HHE. ML:2.6 0.0006183909 0.6272 AML other m 2018-07-07T18:52:12.86
IV.HLNI.HHN. ML:2.9 0.00081740025 0.3328 AML other m 2018-07-07T18:52:13.49
IV.EPZF.HHE. ML:3.2 0.002274056 0.6144 AML other m 2018-07-07T18:52:13.90
IV.HLNI.HHE. ML:2.9 0.0008246416 0.448 AML other m 2018-07-07T18:52:13.94
IV.MBFT.HNE. ML:2.9 0.00095368725 0.6528 AML other m 2018-07-07T18:52:14.04
IV.MBFT.HHE. ML:2.9 0.00091735675 0.64 AML other m 2018-07-07T18:52:14.05
IV.EPZF.HHN. ML:3.2 0.002338504 1.5264 AML other m 2018-07-07T18:52:15.08
IV.MUCR.HHE. ML:3.1 0.001614571 1.424 AML other m 2018-07-07T18:52:15.76
IV.CLTA.HHN. ML:2.5 0.0005294599 1.0784 AML other m 2018-07-07T18:52:15.87
MN.CLTB.HHN. ML:4 0.0185961 1.36 AML other m 2018-07-07T18:52:17.15
IV.RAFF.HHN. ML:2.7 0.00074633485 1.3856 AML other m 2018-07-07T18:52:17.89
IV.CAVT.HHE. ML:3.2 0.0014168815 1.168 AML other m 2018-07-07T18:52:18.70
IV.MBFT.HHN. ML:2.7 0.00060354035 0.8192 AML other m 2018-07-07T18:52:20.45
IV.AGST.EHE. ML:3.5 0.001999447 1.36 AML other m 2018-07-07T18:52:20.94
IV.NOV.HHN. ML:3.3 0.001849583 1.3088 AML other m 2018-07-07T18:52:21.22
IV.NOV.HHE. ML:3.2 0.001342295 1.36 AML other m 2018-07-07T18:52:21.98
IV.HMDC.HHE. ML:3.1 0.0008547153 0.6784 AML other m 2018-07-07T18:52:23.43
IV.RAFF.HHE. ML:2.8 0.00089502835 1.3856 AML other m 2018-07-07T18:52:24.05
IV.MARS.EHN. ML:3.1 0.0008967883 1.3088 AML other m 2018-07-07T18:52:27.15
IV.MARS.EHE. ML:3.1 0.00095985365 0.704 AML other m 2018-07-07T18:52:27.12
IV.AGST.EHN. ML:3.6 0.0025440705 0.7168 AML other m 2018-07-07T18:52:27.49
IV.CAVT.HHN. ML:3.3 0.001874404 0.6144 AML other m 2018-07-07T18:52:29.35
IV.SOI.EHE. ML:3 0.00030717255 1.1424 AML other m 2018-07-07T18:52:38.88
IV.SOI.EHN. ML:2.9 0.00027836315 0.7744 AML other m 2018-07-07T18:52:39.27
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://cnt.rm.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
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 full SEED format Download