Earthquake with magnitude of ML 2.9 on date 18-02-2018 and time 04:00:11 (Italy) in region 4 km SW Blufi (PA)

A magnitude ML 2.9 earthquake occured in region: 4 km SW Blufi (PA), on

  • 18-02-2018 03:00:11 (UTC)
  • 18-02-2018 04:00:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7280, 14.0520 at 36 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
Blufi PA 4 1029 1029
Bompietro PA 5 1401 2430
Resuttano CL 6 2038 4468
Castellana Sicula PA 6 3411 7879
Alimena PA 7 2032 9911
Petralia Soprana PA 9 3360 13271
Petralia Sottana PA 9 2821 16092
Polizzi Generosa PA 11 3407 19499
Santa Caterina Villarmosa CL 15 5388 24887
Gangi PA 16 6811 31698
Geraci Siculo PA 17 1945 33643
Caltavuturo PA 18 4017 37660
Marianopoli CL 19 1906 39566
Villarosa EN 19 4937 44503
Scillato PA 19 613 45116
Valledolmo PA 20 3594 48710
Villalba CL 20 1633 50343

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of Caltanissetta (63360 inhabitants)
61 Km SE of Bagheria (55387 inhabitants)
62 Km NE of Agrigento (59770 inhabitants)
74 Km SE of Palermo (674435 inhabitants)
76 Km N of Gela (75827 inhabitants)
95 Km W of Catania (314555 inhabitants)
97 Km NW of Vittoria (63339 inhabitants)
99 Km W of Acireale (52622 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
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.9 2018-02-18
03:00:11
37.7285 14.052 36 2019-04-24
14:49:44
Bollettino Sismico Italiano INGV 61675221
Reviewed
Rev100
ML 2.9 2018-02-18
03:00:11
37.7228 14.0565 36 2018-02-18
03:16:58
Sala Sismica INGV-Roma 53988791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-18 03:00:11 ± 0.1
Latitude 37.7285 ± 0.0090
Longitude 14.0520 ± 0.0102
Depth (km) 36 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 61675221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1109
Semi-minor axis of confidence ellipse (meter) 747
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 1110.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.11601
Epicentral distance of station farthest from the epicenter (degree) 1.68713
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 38
Magnitudes information

ML:2.9

Field Value
Value 2.9
Uncertainty 0.3
Num. used stations 66
Type of magnitude ML
Reference to an origin 61675221
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-10-06 17:52:05

ML:2.9

Field Value
Value 2.9
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 53988791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-18 03:16:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2018-02-18T03:00:44.10 0.3 undecidable manual S 125 110.0121 54 0.79 51
IV.AGST.EHZ. 2018-02-18T03:00:44.70 0.3 undecidable manual S 116 115.8951 54 0.12 62
IV.HAGA.HHZ. 2018-02-18T03:00:43.20 0.3 undecidable manual S 117 108.8133 54 0.15 62
IV.HMDC.HHZ. 2018-02-18T03:00:43.30 0.3 undecidable manual S 143 107.0151 54 0.65 54
IV.IVPL.HHZ. 2018-02-18T03:00:43.80 1.0 undecidable manual S 48 108.3138 54 0.86 17
IV.EPOZ.HHZ. 2018-02-18T03:00:42.10 1.0 undecidable manual S 93 99.9222 54 0.96 16
IV.CRJA.HHZ. 2018-02-18T03:00:40.10 1.0 undecidable manual S 275 92.241 54 0.63 19
IV.SOI.EHN. 2018-02-18T03:00:39.60 0.3 undecidable manual P 77 179.3871 54 0.9 39
IV.JOPP.HNN. 2018-02-18T03:00:39.28 0.1 undecidable manual P 58 187.2681 54 -0.4 60
IV.HVZN.HHE. 2018-02-18T03:00:38.20 0.3 undecidable manual S 136 84.4488 54 0.4 62
IV.HLNI.HHZ. 2018-02-18T03:00:36.80 0.3 undecidable manual S 120 83.5497 54 -0.8 55
IV.MTTG.HHZ. 2018-02-18T03:00:35.55 0.1 undecidable manual P 78 147.5412 54 0.82 63
IV.HPAC.HHZ. 2018-02-18T03:00:34.13 0.3 undecidable manual P 142 142.746 54 -0.01 60
IV.ERC.EHN. 2018-02-18T03:00:34.09 0.6 undecidable manual P 285 132.7671 54 1.2 28
IV.MSRU.HHZ. 2018-02-18T03:00:34.17 0.1 undecidable manual P 65 140.4483 54 0.31 76
IV.MARS.EHE. 2018-02-18T03:00:33.30 0.3 undecidable manual P 272 130.4694 54 0.69 52
IV.RAFF.HHZ. 2018-02-18T03:00:33.00 0.6 undecidable manual S 154 62.3931 115 0.39 43
IV.SOLUN.HHZ. 2018-02-18T03:00:32.70 0.1 undecidable manual S 312 60.7947 116 0.49 86
IV.MPNC.HHN. 2018-02-18T03:00:32.62 0.3 undecidable manual P 67 122.8881 54 0.95 47
IV.USI.HHZ. 2018-02-18T03:00:31.98 0.1 undecidable manual P 325 132.6672 54 -0.9 61
IV.MILZ.HHZ. 2018-02-18T03:00:31.38 0.6 undecidable manual P 59 119.3916 54 0.15 41
IV.MSFR.HHZ. 2018-02-18T03:00:31.30 0.6 undecidable manual S 54 58.0974 117 -0.28 45
IV.AGST.EHZ. 2018-02-18T03:00:30.04 0.1 positive manual P 116 115.8951 54 -0.76 69
IV.NOV.HHZ. 2018-02-18T03:00:29.56 0.1 positive manual P 70 100.6215 54 0.66 74
IV.HAGA.HHZ. 2018-02-18T03:00:29.16 0.1 undecidable manual P 117 108.8133 54 -0.76 70
IV.EPOZ.HHZ. 2018-02-18T03:00:29.12 0.1 undecidable manual P 93 99.9222 54 0.31 82
IV.CRJA.HHZ. 2018-02-18T03:00:29.01 0.6 undecidable manual P 275 92.241 54 1.16 31
IV.SSY.HHZ. 2018-02-18T03:00:29.55 0.1 undecidable manual P 125 110.0121 54 -0.52 77
IV.ILLI.HHZ. 2018-02-18T03:00:29.88 0.1 undecidable manual P 44 111.5994 54 -0.38 79
IV.IVGP.HHN. 2018-02-18T03:00:29.30 0.1 undecidable manual P 47 108.6135 54 -0.59 74
IV.IVPL.HHZ. 2018-02-18T03:00:29.29 0.1 undecidable manual P 48 108.3138 54 -0.57 75
IV.AIO.HHZ. 2018-02-18T03:00:29.99 0.1 undecidable manual P 75 106.9152 54 0.31 81
IV.HMDC.HHZ. 2018-02-18T03:00:29.03 0.1 undecidable manual P 143 107.0151 54 -0.66 74
IV.MMGO.HHZ. 2018-02-18T03:00:28.47 0.6 undecidable manual P 266 94.6386 54 0.31 42
IV.MUCR.HHE. 2018-02-18T03:00:26.44 0.1 undecidable manual P 64 79.9644 54 0.11 89
IV.HVZN.HHE. 2018-02-18T03:00:26.24 0.1 undecidable manual P 136 84.4488 54 -0.65 77
IV.PLLN.EHZ. 2018-02-18T03:00:26.30 0.3 undecidable manual S 15 30.3474 136 0.72 62
IV.HLNI.HHZ. 2018-02-18T03:00:25.67 0.1 undecidable manual P 120 83.5497 54 -1.1 64
IV.ESML.HHE. 2018-02-18T03:00:25.77 0.1 undecidable manual P 99 73.6707 111 0.28 86
IV.GIB.HHZ. 2018-02-18T03:00:25.20 0.6 undecidable manual S 356 29.1486 138 -0.15 48
IV.MPG.SHZ. 2018-02-18T03:00:25.80 0.1 undecidable manual P 309 77.2671 54 -0.19 87
IV.CSLB.HHZ. 2018-02-18T03:00:24.10 0.3 undecidable manual S 1 23.1546 144 -0.25 72
IV.CORL.HHZ. 2018-02-18T03:00:24.87 0.6 undecidable manual P 286 68.0763 113 0.18 45
IV.RAFF.HHZ. 2018-02-18T03:00:23.65 0.3 undecidable manual P 154 62.3931 115 -0.24 68
IV.SOLUN.HHZ. 2018-02-18T03:00:23.42 0.1 negative manual P 312 60.7947 116 -0.24 89
IV.PETRA.HHZ. 2018-02-18T03:00:23.50 0.1 undecidable manual S 25 12.876 159 0.47 93
IV.MSFR.HHZ. 2018-02-18T03:00:23.18 0.1 undecidable manual P 54 58.0974 117 -0.12 93
IV.GALF.HHZ. 2018-02-18T03:00:22.45 0.6 undecidable manual P 92 45.2214 124 0.87 37
IV.CAGR.HHZ. 2018-02-18T03:00:21.88 0.6 undecidable manual P 107 41.0256 127 0.81 38
IV.PLLN.EHZ. 2018-02-18T03:00:19.52 0.1 undecidable manual P 15 30.3474 136 -0.31 93
IV.ALJA.HHZ. 2018-02-18T03:00:19.44 0.1 positive manual P 275 26.2515 141 0.03 100
IV.GIB.HHZ. 2018-02-18T03:00:19.51 0.1 positive manual P 356 29.1486 138 -0.19 96
IV.CSLB.HHZ. 2018-02-18T03:00:18.63 0.1 positive manual P 1 23.1546 144 -0.49 91
IV.PETRA.HHZ. 2018-02-18T03:00:17.98 0.1 positive manual P 25 12.876 159 -0.38 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHE. ML:0.0 0.00687875 0.4608 AML other m 2018-02-18T03:00:24.35
IV.PETRA.HHN. ML:0.0 0.0053033315 0.28 AML other m 2018-02-18T03:00:25.42
IV.CSLB.HHN. ML:0.0 0.0013697345 0.44 AML other m 2018-02-18T03:00:24.70
IV.CSLB.HHE. ML:0.0 0.0020967089999999996 0.5216 AML other m 2018-02-18T03:00:25.03
IV.CAGR.HHE. ML:0.0 0.001953446 0.8208 AML other m 2018-02-18T03:00:40.27
IV.GIB.HHE. ML:0.0 0.004036727 0.5792 AML other m 2018-02-18T03:00:26.64
IV.PLLN.EHE. ML:0.0 0.0049597519999999996 0.7616 AML other m 2018-02-18T03:00:27.31
IV.ALJA.HHN. ML:0.0 0.0021375445 0.32 AML other m 2018-02-18T03:00:27.08
IV.ALJA.HHE. ML:0.0 0.0030797075 0.5392 AML other m 2018-02-18T03:00:27.39
IV.PLLN.EHN. ML:0.0 0.0058258785 0.44 AML other m 2018-02-18T03:00:27.68
IV.GIB.HHN. ML:0.0 0.0032443980000000003 0.4 AML other m 2018-02-18T03:00:29.87
IV.USI.HHN. ML:3.0 0.0005805000000000001 0.28 AML other m 2018-02-18T03:00:32.67
IV.USI.HHE. ML:2.6 0.0002615 1.66 AML other m 2018-02-18T03:00:33.02
IV.SOLUN.HHE. ML:0.0 0.0009724597000000001 0.4992 AML other m 2018-02-18T03:00:33.46
IV.CAGR.HHN. ML:0.0 0.0014246159999999999 0.64 AML other m 2018-02-18T03:00:39.36
IV.GALF.HHN. ML:0.0 0.0007685275 0.5792 AML other m 2018-02-18T03:00:41.02
IV.SOLUN.HHN. ML:0.0 0.00038165594999999995 0.6208 AML other m 2018-02-18T03:00:34.16
IV.GALF.HHE. ML:0.0 0.00094657035 0.6 AML other m 2018-02-18T03:00:34.71
IV.MSFR.HHN. ML:0.0 0.00037652115 1.04 AML other m 2018-02-18T03:00:34.23
IV.RAFF.HHN. ML:0.0 0.0012695733499999999 0.2608 AML other m 2018-02-18T03:00:34.91
IV.RAFF.HHE. ML:0.0 0.0013606615 0.2992 AML other m 2018-02-18T03:00:36.14
IV.HLNI.HHN. ML:0.0 0.0012850000000000001 0.16 AML other m 2018-02-18T03:00:37.40
IV.HLNI.HHE. ML:0.0 0.0011274660000000001 0.1008 AML other m 2018-02-18T03:00:37.49
IV.MSFR.HHE. ML:0.0 0.00022236315000000002 0.52 AML other m 2018-02-18T03:00:38.79
IV.MPG.SHN. ML:0.0 0.0002216055 0.36 AML other m 2018-02-18T03:00:39.08
IV.ESML.HHN. ML:0.0 0.0006729206999999999 0.5408 AML other m 2018-02-18T03:00:39.42
IV.CORL.HHN. ML:0.0 0.0015267575 0.5984 AML other m 2018-02-18T03:00:40.19
IV.CORL.HHE. ML:0.0 0.001584356 0.84 AML other m 2018-02-18T03:00:41.19
IV.MUCR.HHN. ML:0.0 0.0007021044 0.48 AML other m 2018-02-18T03:00:42.11
IV.MPG.SHE. ML:0.0 0.00021104395 0.76 AML other m 2018-02-18T03:00:42.26
IV.HAGA.HHN. ML:0.0 0.0008314103000000001 0.2608 AML other m 2018-02-18T03:00:43.54
IV.HAGA.HHE. ML:0.0 0.0017761715000000002 0.3984 AML other m 2018-02-18T03:00:43.66
IV.HMDC.HHE. ML:0.0 0.00253 0.2 AML other m 2018-02-18T03:00:43.76
IV.HMDC.HHN. ML:0.0 0.0027459445000000003 0.2992 AML other m 2018-02-18T03:00:43.82
IV.NOV.HHE. ML:0.0 0.00051365315 0.3392 AML other m 2018-02-18T03:00:44.30
IV.SSY.HHE. ML:0.0 0.00196128375 0.44 AML other m 2018-02-18T03:00:44.48
IV.EPOZ.HHN. ML:0.0 0.00157863 0.5184 AML other m 2018-02-18T03:00:45.07
IV.AGST.EHE. ML:0.0 0.005033515 0.16 AML other m 2018-02-18T03:00:45.26
IV.AGST.EHN. ML:0.0 0.004857423 0.16 AML other m 2018-02-18T03:00:45.53
IV.CRJA.HHE. ML:0.0 0.001162461 0.72 AML other m 2018-02-18T03:00:46.45
IV.SSY.HHN. ML:0.0 0.0033342735 0.2592 AML other m 2018-02-18T03:00:47.12
IV.MMGO.HHN. ML:0.0 0.0001236531 0.6608 AML other m 2018-02-18T03:00:49.76
IV.NOV.HHN. ML:0.0 0.00040660295 0.32 AML other m 2018-02-18T03:00:47.59
IV.IVPL.HHE. ML:0.0 0.0005131838 0.3008 AML other m 2018-02-18T03:00:48.03
IV.MMGO.HHE. ML:0.0 0.00013320725 0.56 AML other m 2018-02-18T03:00:48.01
IV.CRJA.HHN. ML:0.0 0.00035951955 0.56 AML other m 2018-02-18T03:00:48.57
IV.EPOZ.HHE. ML:0.0 0.0008005 0.42 AML other m 2018-02-18T03:00:48.87
IV.ILLI.HHE. ML:0.0 0.001109 0.44 AML other m 2018-02-18T03:00:50.88
IV.ILLI.HHN. ML:0.0 0.0014270545 0.4608 AML other m 2018-02-18T03:01:01.25
IV.AIO.HHE. ML:0.0 0.00035379095 0.3408 AML other m 2018-02-18T03:00:50.98
IV.AIO.HHN. ML:0.0 0.0004862164 0.36 AML other m 2018-02-18T03:00:51.58
IV.IVPL.HHN. ML:0.0 0.00050808765 0.4992 AML other m 2018-02-18T03:00:52.08
IV.HPAC.HHE. ML:0.0 0.0015333875 0.2416 AML other m 2018-02-18T03:00:53.75
IV.MILZ.HHE. ML:0.0 0.0003634447 0.4608 AML other m 2018-02-18T03:00:54.50
IV.MILZ.HHN. ML:0.0 0.00024716915 0.4816 AML other m 2018-02-18T03:00:56.91
IV.MSRU.HHN. ML:0.0 0.00025041485 0.52 AML other m 2018-02-18T03:00:57.33
IV.HPAC.HHN. ML:0.0 0.00130644 0.32 AML other m 2018-02-18T03:00:57.91
IV.MSRU.HHE. ML:0.0 0.00033490575 0.5008 AML other m 2018-02-18T03:00:59.30
IV.MTTG.HHN. ML:0.0 0.000122183985 0.76 AML other m 2018-02-18T03:01:05.78
IV.MTTG.HHE. ML:0.0 0.0001573968 0.9008 AML other m 2018-02-18T03:01:09.24
IV.ESML.HHE. ML:2.8 0.0007725411 0.64 AML other m 2018-02-18T03:00:42.50
IV.MUCR.HHE. ML:2.8 0.0008206564 0.48 AML other m 2018-02-18T03:00:41.92
MN.CLTB.HHN. ML:3.5 0.0039994445 0.48 AML other m 2018-02-18T03:00:42.91
MN.CLTB.HHE. ML:3.4 0.0031689509999999997 0.5984 AML other m 2018-02-18T03:00:49.50
MN.CEL.HHE. ML:2.3 0.00007655772999999999 0.9808 AML other m 2018-02-18T03:01:13.29
MN.CEL.HNE. ML:2.3 0.000067934825 0.6784 AML other m 2018-02-18T03:01:15.40
MN.CEL.HHN. ML:2.2 0.00006301512500000001 0.3792 AML other m 2018-02-18T03:01:08.15
MN.CEL.HNN. ML:2.2 0.00006701709999999999 0.7584 AML other m 2018-02-18T03:01:19.22
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