Earthquake with magnitude of ML 3.0 on date 12-12-2018 and time 21:50:13 (Italy) in region 1 km NW Gangi (PA)

A magnitude ML 3.0 earthquake occured in region: 1 km NW Gangi (PA), on

  • 12-12-2018 20:50:13 (UTC)
  • 12-12-2018 21:50:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8060, 14.1930 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 1 6811 6811
Geraci Siculo PA 7 1945 8756
Petralia Soprana PA 7 3360 12116
Petralia Sottana PA 9 2821 14937
Bompietro PA 10 1401 16338
Blufi PA 12 1029 17367
San Mauro Castelverde PA 12 1701 19068
Castellana Sicula PA 13 3411 22479
Castel di Lucio ME 14 1294 23773
Alimena PA 14 2032 25805
Sperlinga EN 15 805 26610
Polizzi Generosa PA 17 3407 30017
Castelbuono PA 17 8943 38960
Nicosia EN 19 13899 52859
Resuttano CL 20 2038 54897
Pettineo ME 20 1350 56247

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NE of Caltanissetta (63360 inhabitants)
67 Km E of Bagheria (55387 inhabitants)
77 Km NE of Agrigento (59770 inhabitants)
81 Km E of Palermo (674435 inhabitants)
82 Km N of Gela (75827 inhabitants)
86 Km W of Catania (314555 inhabitants)
88 Km W of Acireale (52622 inhabitants)
100 Km N of Vittoria (63339 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
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 updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent 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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 3.0 2018-12-12
20:50:13
37.806 14.1927 4 2019-06-04
09:16:10
Bollettino Sismico Italiano INGV 65758371
Reviewed
Rev100
ML 3.0 2018-12-12
20:50:13
37.8008 14.1855 8 2018-12-12
21:11:11
Sala Sismica INGV-Roma 63872751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-12 20:50:13 ± 0.09
Latitude 37.8060 ± 0.0054
Longitude 14.1927 ± 0.0057
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 65758371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 658
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 200
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 33
Number of associated phases, regardless of their use for origin computation 61
Number of defining phases 58
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.20604
Number of stations at which the event was observed 47
Number of stations from which data was used for origin computation 44
Magnitudes information

ML:3.0

Field Value
Value 3.0
Uncertainty 0.3
Num. used stations 65
Type of magnitude ML
Reference to an origin 63872751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-12 21:11:10

ML:3.0

Field Value
Value 3.0
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 65758371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-19 15:30:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LAV9.HNZ. 2018-12-12T20:52:02.60 3.0 undecidable manual Sn -0.27 0
IV.COLB.HHZ. 2018-12-12T20:51:05.25 3.0 positive manual Pn 4.67 0
IV.MODR.HHZ. 2018-12-12T20:51:03.92 3.0 undecidable manual Pn -1.27 0
IV.HPAC.HHZ. 2018-12-12T20:50:56.08 0.6 undecidable manual S 148 142.746 50 0.75 0
IV.LINA.HHZ. 2018-12-12T20:50:49.81 0.6 undecidable manual P 209 244.866 38 -1.59 0
IV.CAR1.HHZ. 2018-12-12T20:50:48.63 0.3 undecidable manual P 47 237.6843 38 -1.87 0
IV.PLAC.HHZ. 2018-12-12T20:50:46.42 0.3 undecidable manual P 69 208.5357 38 -0.46 0
IV.MILZ.HHZ. 2018-12-12T20:50:45.99 0.6 undecidable manual S 60 104.4177 50 0.9 0
IV.IFIL.HHZ. 2018-12-12T20:50:42.29 0.6 undecidable manual S 22 90.4428 50 0.91 3
IV.HVZN.HHE. 2018-12-12T20:50:39.46 0.6 undecidable manual S 146 83.4498 50 -0.04 12
IV.HLNI.HHZ. 2018-12-12T20:50:38.74 0.6 undecidable manual S 130 78.366 50 0.6 17
IV.HPAC.HHZ. 2018-12-12T20:50:36.51 0.1 undecidable manual P 148 142.746 50 -1.01 0
IV.MTTG.HHZ. 2018-12-12T20:50:36.14 0.3 undecidable manual P 80 133.7661 50 0.01 0
IV.MUCR.HHZ. 2018-12-12T20:50:35.37 0.6 undecidable manual S 66 65.1903 50 0.75 33
IV.USI.HHZ. 2018-12-12T20:50:34.61 0.1 undecidable manual P 319 133.4664 50 -1.48 0
IV.SOLUN.HHZ. 2018-12-12T20:50:34.96 0.6 undecidable manual S 299 65.8896 50 0.15 38
IV.MSRU.HHZ. 2018-12-12T20:50:34.40 0.1 undecidable manual P 66 125.6742 50 -0.49 0
IV.CRJA.HHZ. 2018-12-12T20:50:32.11 0.3 undecidable manual P 270 104.118 50 0.54 0
IV.MILZ.HHZ. 2018-12-12T20:50:31.31 0.1 undecidable manual P 60 104.4177 50 -0.3 0
IV.CROCE.HHZ. 2018-12-12T20:50:31.94 0.1 undecidable manual P 164 112.0989 50 -0.86 0
MN.CLTB.HHZ. 2018-12-12T20:50:31.50 0.3 undecidable manual P 254 89.3439 50 2.2 3
IV.SSY.HHZ. 2018-12-12T20:50:31.07 0.1 undecidable manual P 133 105.7164 50 -0.75 0
IV.AGST.EHE. 2018-12-12T20:50:31.62 0.1 undecidable manual P 124 109.5126 50 -0.78 0
IV.MPNC.HHZ. 2018-12-12T20:50:31.66 0.1 undecidable manual P 69 108.2139 50 -0.55 0
IV.MBFT.HHZ. 2018-12-12T20:50:31.89 0.3 undecidable manual P 279 109.6125 50 -0.52 0
IV.HAGA.HHZ. 2018-12-12T20:50:30.56 0.1 undecidable manual P 124 102.5196 50 -0.75 0
IV.IVPL.HHZ. 2018-12-12T20:50:30.03 0.1 undecidable manual P 47 93.4398 50 0.11 4
IV.ILLI.HHZ. 2018-12-12T20:50:30.86 0.1 undecidable manual P 43 96.8253 50 0.41 1
IV.IFIL.HHZ. 2018-12-12T20:50:29.51 0.1 undecidable manual P 22 90.4428 50 0.04 8
IV.EPOZ.HHZ. 2018-12-12T20:50:29.16 0.3 undecidable manual P 99 88.6446 50 -0.02 9
IV.AIO.HHZ. 2018-12-12T20:50:29.10 0.3 undecidable manual P 78 92.9403 50 -0.74 3
IV.MNO.SHZ. 2018-12-12T20:50:29.70 0.6 undecidable manual S 72 46.1205 95 0.44 46
IV.FAVR.HHN. 2018-12-12T20:50:28.96 0.3 undecidable manual P 218 75.5688 50 1.79 17
IV.NOV.HHZ. 2018-12-12T20:50:28.28 0.1 undecidable manual P 73 86.1471 50 -0.52 16
IV.ESML.HHE. 2018-12-12T20:50:27.07 0.3 undecidable manual P 109 63.7917 50 1.72 30
IV.HVZN.HHE. 2018-12-12T20:50:27.99 0.1 undecidable manual P 146 83.4498 50 -0.39 23
IV.IACL.HHZ. 2018-12-12T20:50:27.87 0.1 undecidable manual P 10 81.8514 50 -0.27 28
IV.CORL.HHZ. 2018-12-12T20:50:26.98 0.1 undecidable manual P 277 78.4659 50 -0.64 34
IV.ALJA.HHZ. 2018-12-12T20:50:26.34 0.6 undecidable manual S 261 39.0276 96 -0.46 46
IV.CLTA.HHZ. 2018-12-12T20:50:26.89 0.1 undecidable manual P 196 74.6697 50 -0.14 50
IV.EMSG.HHN. 2018-12-12T20:50:26.73 0.3 undecidable manual P 88 66.378 50 0.98 43
IV.HLNI.HHZ. 2018-12-12T20:50:26.80 0.1 undecidable manual P 130 78.366 50 -0.8 32
IV.GALF.HHZ. 2018-12-12T20:50:25.10 0.6 undecidable manual S 108 34.4433 97 -0.12 50
IV.RAFF.HHZ. 2018-12-12T20:50:25.13 0.1 undecidable manual P 167 66.378 50 -0.62 66
IV.EPZF.HHZ. 2018-12-12T20:50:24.88 0.3 undecidable manual P 88 58.1973 50 0.38 66
IV.CMDO.HHZ. 2018-12-12T20:50:24.51 0.3 undecidable manual P 221 49.9167 50 1.29 48
IV.MUCR.HHZ. 2018-12-12T20:50:24.62 0.1 undecidable manual P 66 65.1903 50 -0.94 60
IV.SOLUN.HHZ. 2018-12-12T20:50:24.99 0.1 undecidable manual P 299 65.8896 50 -0.68 65
MN.VAE.HHZ. 2018-12-12T20:50:22.24 0.3 undecidable manual P 159 39.9267 96 1 56
IV.MNO.SHZ. 2018-12-12T20:50:21.67 0.1 undecidable manual P 72 46.1205 95 -0.8 81
IV.CSLB.HHZ. 2018-12-12T20:50:20.37 0.6 undecidable manual S 321 18.7701 102 0.51 46
IV.PLLN.EHZ. 2018-12-12T20:50:20.64 0.6 undecidable manual S 348 21.1677 101 -0.03 51
IV.ALJA.HHZ. 2018-12-12T20:50:20.32 0.1 undecidable manual P 261 39.0276 96 -0.73 84
IV.CAGR.HHE. 2018-12-12T20:50:20.04 0.3 undecidable manual P 127 33.8439 97 0.02 76
IV.RESU.HHZ. 2018-12-12T20:50:20.97 0.6 undecidable manual S 214 21.2676 101 0.25 48
IV.GALF.HHZ. 2018-12-12T20:50:19.80 0.1 positive manual P 108 34.4433 97 -0.34 95
IV.PLLN.EHZ. 2018-12-12T20:50:17.59 0.1 positive manual P 348 21.1677 101 0.09 100
IV.PETRA.HHZ. 2018-12-12T20:50:17.58 0.6 undecidable manual S 294 7.4814 118 1.44 30
IV.RESU.HHZ. 2018-12-12T20:50:17.14 0.1 positive manual P 214 21.2676 101 -0.4 94
IV.CSLB.HHZ. 2018-12-12T20:50:16.86 0.1 positive manual P 321 18.7701 102 -0.18 98
IV.PETRA.HHZ. 2018-12-12T20:50:15.31 0.1 positive manual P 294 7.4814 118 0.42 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHN. ML:2.3 0.0018453669999999999 0.32 AML other m 2018-12-12T20:50:22.15
IV.CSLB.HHE. ML:2.5 0.0028737545 0.5376 AML other m 2018-12-12T20:50:22.35
IV.PLLN.EHE. ML:2.9 0.006603586 0.6784 AML other m 2018-12-12T20:50:25.29
IV.GALF.HHE. ML:2.9 0.0032920015 0.4608 AML other m 2018-12-12T20:50:31.33
IV.GALF.HNE. ML:2.2 0.0007525087000000001 0.4608 AML other m 2018-12-12T20:50:31.10
IV.GALF.HNN. ML:2.3 0.0009503956499999999 0.448 AML other m 2018-12-12T20:50:31.33
IV.ALJA.HHN. ML:3.2 0.005515413499999999 0.384 AML other m 2018-12-12T20:50:32.31
IV.ALJA.HHE. ML:3.0 0.003836235 0.3584 AML other m 2018-12-12T20:50:33.11
IV.MNO.SHE. ML:0.0 0.002404991 0.5632 AML other m 2018-12-12T20:50:34.05
IV.SOLUN.HHE. ML:3.0 0.0019650625000000002 0.6912 AML other m 2018-12-12T20:50:38.91
IV.SOLUN.HHN. ML:2.8 0.0011064185 0.64 AML other m 2018-12-12T20:50:39.23
IV.HLNI.HHE. ML:2.5 0.00043102305 0.8704 AML other m 2018-12-12T20:50:39.97
IV.RAFF.HHE. ML:2.5 0.0005499056 0.7168 AML other m 2018-12-12T20:50:40.30
IV.IACL.HHE. ML:3.1 0.0015497529999999999 0.4992 AML other m 2018-12-12T20:50:43.56
IV.CLTA.HHE. ML:2.4 0.00039211975 0.6784 AML other m 2018-12-12T20:50:43.78
IV.CORL.HHN. ML:3.0 0.001489242 0.5248 AML other m 2018-12-12T20:50:44.73
IV.IFIL.HHN. ML:3.3 0.0024533149999999997 0.4864 AML other m 2018-12-12T20:50:44.90
IV.IFIL.HHE. ML:3.7 0.0063308535 0.64 AML other m 2018-12-12T20:50:45.39
IV.SSY.HHE. ML:3.7 0.0042076475 0.8064 AML other m 2018-12-12T20:50:48.12
IV.NOV.HHE. ML:3.3 0.002459374 0.64 AML other m 2018-12-12T20:50:49.32
IV.CROCE.HHE. ML:2.9 0.00064134885 0.704 AML other m 2018-12-12T20:50:49.72
IV.IVPL.HHN. ML:3.1 0.00131186575 0.4224 AML other m 2018-12-12T20:50:50.07
IV.ILLI.HHN. ML:4.1 0.014319694999999999 0.9344 AML other m 2018-12-12T20:50:50.04
IV.AIO.HHN. ML:3.0 0.0010954145 0.5376 AML other m 2018-12-12T20:50:52.13
IV.CRJA.HHN. ML:3.1 0.00110011375 0.5888 AML other m 2018-12-12T20:50:53.88
IV.CRJA.HHE. ML:3.0 0.0009822202 0.4992 AML other m 2018-12-12T20:50:53.88
IV.USI.HHN. ML:3.2 0.0009089743999999999 0.4608 AML other m 2018-12-12T20:50:54.30
IV.MBFT.HNE. ML:2.2 0.00014850506499999999 0.6144 AML other m 2018-12-12T20:50:55.83
IV.HPAC.HHE. ML:3.2 0.0008388381 1.0624 AML other m 2018-12-12T20:50:57.50
IV.MSRU.HHE. ML:3.1 0.00090465085 0.6528 AML other m 2018-12-12T20:51:00.00
IV.MSRU.HHN. ML:3.0 0.0006579941 0.6912 AML other m 2018-12-12T20:51:02.67
IV.CAR1.HHN. ML:2.9 0.0001615606 0.8064 AML other m 2018-12-12T20:51:17.40
IV.LINA.HHE. ML:3.2 0.00032233685 0.6272 AML other m 2018-12-12T20:51:19.94
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols 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 miniseed + resp format Download