Earthquake with magnitude of ML 3.1 on date 07-05-2019 and time 15:29:31 (Italy) in region 4 km NE Gangi (PA)

A magnitude ML 3.1 earthquake occured in region: 4 km NE Gangi (PA), on

  • 07-05-2019 13:29:31 (UTC)
  • 07-05-2019 15:29:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.83, 14.22 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
Gangi PA 4 6811 6811
Geraci Siculo PA 7 1945 8756
San Mauro Castelverde PA 10 1701 10457
Castel di Lucio ME 10 1294 11751
Petralia Soprana PA 11 3360 15111
Petralia Sottana PA 12 2821 17932
Sperlinga EN 14 805 18737
Bompietro PA 14 1401 20138
Blufi PA 16 1029 21167
Pettineo ME 16 1350 22517
Castelbuono PA 16 8943 31460
Mistretta ME 16 4791 36251
Castellana Sicula PA 17 3411 39662
Tusa ME 17 2925 42587
Motta d'Affermo ME 18 739 43326
Nicosia EN 18 13899 57225
Alimena PA 18 2032 59257
Reitano ME 19 806 60063
Pollina PA 19 2974 63037
Polizzi Generosa PA 20 3407 66444

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km NE of Caltanissetta (63360 inhabitants)
68 Km E of Bagheria (55387 inhabitants)
81 Km NE of Agrigento (59770 inhabitants)
82 Km E of Palermo (674435 inhabitants)
85 Km W of Catania (314555 inhabitants)
85 Km N of Gela (75827 inhabitants)
87 Km W of Acireale (52622 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 3.1 2019-05-07
13:29:31
37.83 14.22 5 2019-11-13
14:31:01
Bollettino Sismico Italiano INGV 72174511
Rev 100 ML 3.1 2019-05-07
13:29:31
37.84 14.2 8 2019-05-07
13:42:17
Sala Sismica INGV-Roma 68336551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-05-07 13:29:31 ± 0.12
Latitude 37.83 ± 0.01
Longitude 14.22 ± 0.01
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 72174511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 699
Semi-minor axis of confidence ellipse (meter) 371
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 203
Circular confidence region, given by single value of horizontal uncertainty (meter) 700
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 36
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
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) 0.17087
Epicentral distance of station farthest from the epicenter (degree) 2.10441
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:3.1

Field Value
Value 3.1
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 72174511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-30 09:52:54

ML:3.1

Field Value
Value 3.1
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 68336551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-05-07 13:42:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2019-05-07T13:30:06.48 0.6 undecidable manual P 47 2.1044 38 -1.8 12
IV.AGST.EHE. 2019-05-07T13:30:05.20 0.3 undecidable manual S 126 0.983 50 0.61 57
IV.HVZN.HNZ. 2019-05-07T13:29:59.10 1.0 undecidable manual S 149 0.7626 50 1.04 17
IV.SOI.EHZ. 2019-05-07T13:29:58.85 1.0 undecidable manual P 80 1.4623 50 0.01 19
IV.MARS.EHZ. 2019-05-07T13:29:57.80 1.0 undecidable manual P 267 1.3121 50 1.54 11
IV.MFNL.HHZ. 2019-05-07T13:29:53.50 0.6 undecidable manual P 268 1.0279 50 2.1 15
IV.MUCR.HHZ. 2019-05-07T13:29:52.00 0.3 undecidable manual S 68 0.554 50 0.11 71
IV.MMGO.HHZ. 2019-05-07T13:29:52.43 0.6 undecidable manual P 260 1 50 1.51 24
IV.MBFT.HHZ. 2019-05-07T13:29:51.79 0.6 undecidable manual P 277 1.0072 50 0.74 36
IV.MPNC.HHZ. 2019-05-07T13:29:49.66 0.3 undecidable manual P 70 0.9434 50 -0.29 63
IV.SSY.HNN. 2019-05-07T13:29:49.44 0.6 undecidable manual P 135 0.9542 50 -0.7 37
IV.AGST.EHE. 2019-05-07T13:29:49.71 0.3 undecidable manual P 126 0.983 50 -0.91 50
IV.ILLI.HHZ. 2019-05-07T13:29:48.86 1.0 undecidable manual P 43 0.8364 50 0.74 19
IV.HAGA.HHZ. 2019-05-07T13:29:48.65 1.0 undecidable manual P 126 0.92 50 -0.9 17
IV.IVPL.HHZ. 2019-05-07T13:29:47.94 0.6 undecidable manual P 47 0.8049 50 0.35 43
IV.IACL.HHZ. 2019-05-07T13:29:46.00 0.3 undecidable manual P 8 0.7069 50 0.1 69
IV.MPG.SHZ. 2019-05-07T13:29:46.64 0.6 undecidable manual P 296 0.7545 50 -0.08 46
IV.ALJA.HHZ. 2019-05-07T13:29:46.10 1.0 undecidable manual S 257 0.3804 96 -0.18 24
IV.HVZN.HNZ. 2019-05-07T13:29:46.21 0.3 undecidable manual P 149 0.7626 50 -0.65 59
IV.NOV.HHZ. 2019-05-07T13:29:46.48 0.6 undecidable manual P 75 0.7455 50 -0.09 46
IV.MNO.SHZ. 2019-05-07T13:29:46.90 0.6 undecidable manual S 75 0.3849 96 0.45 46
IV.CLTA.HHZ. 2019-05-07T13:29:45.84 0.3 undecidable manual P 197 0.706 50 -0.06 70
IV.MSFR.HHZ. 2019-05-07T13:29:45.70 1.0 undecidable manual S 55 0.3525 97 0.47 23
IV.CORL.HHZ. 2019-05-07T13:29:45.72 0.3 undecidable manual P 275 0.7276 50 -0.55 62
IV.RAFF.HHZ. 2019-05-07T13:29:43.83 0.6 undecidable manual P 170 0.6205 50 -0.6 41
IV.SOLUN.HHZ. 2019-05-07T13:29:43.23 0.6 undecidable manual P 296 0.6025 50 -0.88 37
IV.CMDO.HHZ. 2019-05-07T13:29:42.92 0.6 undecidable manual P 221 0.4865 50 0.78 39
IV.MUCR.HHZ. 2019-05-07T13:29:42.79 0.6 undecidable manual P 68 0.554 50 -0.5 44
IV.EPZF.HHZ. 2019-05-07T13:29:42.72 0.3 negative manual P 91 0.5009 50 0.34 68
IV.CPTP.HHZ. 2019-05-07T13:29:41.79 0.3 undecidable manual P 186 0.429 95 0.67 63
IV.RESU.HHE. 2019-05-07T13:29:40.40 1.0 undecidable manual S 215 0.2284 100 -0.08 25
MN.VAE.HHE. 2019-05-07T13:29:40.69 0.1 undecidable manual P 164 0.3786 96 0.67 84
IV.GIB.HHZ. 2019-05-07T13:29:40.90 0.6 undecidable manual S 315 0.2203 100 0.71 43
IV.MSFR.HHZ. 2019-05-07T13:29:39.19 0.6 undecidable manual P 55 0.3525 97 -0.26 48
IV.MNO.SHZ. 2019-05-07T13:29:39.63 0.1 undecidable manual P 75 0.3849 96 -0.53 89
IV.ALJA.HHZ. 2019-05-07T13:29:39.28 0.6 undecidable manual P 257 0.3804 96 -0.77 40
IV.PLLN.EHZ. 2019-05-07T13:29:38.30 0.3 undecidable manual S 338 0.1709 103 -0.01 78
IV.CAGR.HHZ. 2019-05-07T13:29:38.97 0.6 undecidable manual P 134 0.304 98 0.59 44
IV.GIB.HHZ. 2019-05-07T13:29:36.28 0.3 undecidable manual P 315 0.2203 100 -0.25 74
IV.PLLN.EHZ. 2019-05-07T13:29:35.67 0.1 positive manual P 338 0.1709 103 0.22 100
IV.RESU.HHE. 2019-05-07T13:29:35.96 0.1 undecidable manual P 215 0.2284 100 -0.75 84
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLLN.EHE. ML:0 0.0055948905 0.4416 AML other m 2019-05-07T13:29:41.71
IV.GIB.HHE. ML:0 0.0077460885 0.5568 AML other m 2019-05-07T13:29:43.21
IV.PLLN.EHN. ML:0 0.007482119 0.4224 AML other m 2019-05-07T13:29:44.52
IV.MSFR.HHN. ML:0 0.0016083695 1.5776 AML other m 2019-05-07T13:29:46.92
IV.MSFR.HHE. ML:0 0.0020319613 1.68 AML other m 2019-05-07T13:29:47.91
IV.MNO.SHE. ML:0 0.00570039 0.4032 AML other m 2019-05-07T13:29:48.95
IV.GIB.HHN. ML:0 0.004590656 1.3792 AML other m 2019-05-07T13:29:49.89
IV.CAGR.HHE. ML:0 0.0065095885 1.3792 AML other m 2019-05-07T13:29:50.88
IV.CAGR.HHN. ML:0 0.0074404455 0.4992 AML other m 2019-05-07T13:29:51.54
IV.MNO.SHN. ML:0 0.0060609925 0.6016 AML other m 2019-05-07T13:29:54.85
IV.MUCR.HHE. ML:0 0.00214734 0.48 AML other m 2019-05-07T13:29:56.21
IV.SOLUN.HHN. ML:0 0.00099510125 0.6016 AML other m 2019-05-07T13:29:56.65
IV.CPTP.HHE. ML:0 0.002709768 0.6784 AML other m 2019-05-07T13:29:56.97
IV.MUCR.HHN. ML:0 0.0027703105 0.6208 AML other m 2019-05-07T13:29:57.41
IV.SOLUN.HHE. ML:0 0.0016766925 1.136 AML other m 2019-05-07T13:29:58.23
IV.EPZF.HHE. ML:0 0.0031359515 1.3216 AML other m 2019-05-07T13:29:58.09
IV.IACL.HHN. ML:0 0.0019970885 0.6016 AML other m 2019-05-07T13:29:59.61
IV.IACL.HHE. ML:0 0.0027971985 1.4752 AML other m 2019-05-07T13:30:01.04
IV.EPZF.HHN. ML:3 0.002344638 1.4432 AML other m 2019-05-07T13:30:01.12
IV.CPTP.HHN. ML:0 0.0037114815 0.7616 AML other m 2019-05-07T13:30:01.59
IV.MPG.SHN. ML:0 0.00014993345 0.7168 AML other m 2019-05-07T13:30:03.59
IV.IVPL.HHN. ML:0 0.0018158235 0.4352 AML other m 2019-05-07T13:30:06.50
IV.IVPL.HHE. ML:0 0.002822067 0.5184 AML other m 2019-05-07T13:30:06.68
IV.MPG.SHE. ML:0 0.00013440885 0.9184 AML other m 2019-05-07T13:30:06.45
IV.ILLI.HHN. ML:0 0.02458693 0.5568 AML other m 2019-05-07T13:30:06.68
IV.NOV.HHE. ML:0 0.002551599 1.2768 AML other m 2019-05-07T13:30:07.68
IV.NOV.HHN. ML:0 0.003411851 1.3792 AML other m 2019-05-07T13:30:07.96
IV.ILLI.HHE. ML:0 0.01278848 0.6976 AML other m 2019-05-07T13:30:11.85
IV.MPNC.HHN. ML:0 0.0020555275 1.456 AML other m 2019-05-07T13:30:16.16
IV.MPNC.HHE. ML:0 0.002170086 0.5376 AML other m 2019-05-07T13:30:17.97
IV.SOI.EHE. ML:0 0.0004951017 0.6016 AML other m 2019-05-07T13:30:29.03
IV.SOI.EHN. ML:0 0.0004799024 1.3408 AML other m 2019-05-07T13:30:30.26
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://terremoti.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