Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 18-03-2018 and time 06:18:27 (UTC) in region 3 km W Calascibetta (EN)

A magnitude ML 2.5 earthquake occured in region: 3 km W Calascibetta (EN), on

  • 18-03-2018 06:18:27 (UTC)
  • 18-03-2018 07:18:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.5910, 14.2430 at 37 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Calascibetta EN 3 4528 4528
Enna EN 4 28019 32547
Villarosa EN 6 4937 37484
Leonforte EN 14 13439 50923
Alimena PA 16 2032 52955
Valguarnera Caropepe EN 17 7866 60821
Assoro EN 17 5191 66012
Santa Caterina Villarmosa CL 19 5388 71400
Caltanissetta CL 19 63360 134760
Nissoria EN 20 3000 137760

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Caltanissetta (63360 inhabitants)
58 Km N of Gela (75827 inhabitants)
66 Km NE of Agrigento (59770 inhabitants)
75 Km W of Catania (314555 inhabitants)
76 Km NW of Vittoria (63339 inhabitants)
82 Km W of Acireale (52622 inhabitants)
84 Km SE of Bagheria (55387 inhabitants)
86 Km NW of Ragusa (73313 inhabitants)
93 Km NW of Modica (54633 inhabitants)
97 Km SE of Palermo (674435 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.5 2018-03-18
06:18:27		 37.5908 14.2428 37 2019-04-24
14:49:23		 Bollettino Sismico Italiano INGV 55110441
Reviewed
Rev100 		ML 2.5 2018-03-18
06:18:26		 37.5657 14.2202 48 2018-03-18
06:43:07		 Sala Sismica INGV-Roma 54680731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-03-18 06:18:27 ± 0.11
Latitude 37.5908 ± 0.0090
Longitude 14.2428 ± 0.0113
Depth (km) 37 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 55110441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1096
Semi-minor axis of confidence ellipse (meter) 698
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 225
Circular confidence region, given by single value of horizontal uncertainty (meter) 1100.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 56
Number of defining phases 56
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.55
Epicentral distance of station closest to the epicenter (degree) 0.15738
Epicentral distance of station farthest from the epicenter (degree) 2.04236
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 39
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 35
Type of magnitude ML
Reference to an origin 55110441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-04-04 10:24:59

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 54680731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-03-18 06:43:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HPAC.HHE. 2018-03-18T06:19:02.93 0.1 undecidable manual S 144 120.4905 54 1.72 42
IV.PLAC.HHE. 2018-03-18T06:19:00.19 0.1 undecidable manual P 63 214.2189 54 1.43 34
IV.IFIL.HHZ. 2018-03-18T06:18:59.08 0.3 undecidable manual S 15 111.7992 54 -0.26 64
IV.LINA.HHE. 2018-03-18T06:18:59.88 0.3 undecidable manual P 213 226.7064 54 -0.44 37
IV.AIO.HHZ. 2018-03-18T06:18:56.75 0.3 undecidable manual S 64 96.5256 54 0.71 57
IV.AGST.EHZ. 2018-03-18T06:18:55.30 0.1 undecidable manual S 113 94.3389 54 -0.27 87
IV.EPOZ.HHZ. 2018-03-18T06:18:54.70 0.3 undecidable manual S 84 83.5497 54 1.45 41
IV.SSY.HHZ. 2018-03-18T06:18:54.43 0.1 undecidable manual S 123 87.6456 54 0.31 88
IV.JOPP.HNN. 2018-03-18T06:18:54.57 0.1 undecidable manual P 51 182.3841 54 -0.23 67
IV.SOI.EHN. 2018-03-18T06:18:53.28 0.3 undecidable manual P 71 167.5101 54 0.34 53
IV.HAGA.HHZ. 2018-03-18T06:18:53.54 0.1 undecidable manual S 113 87.246 54 -0.5 84
IV.HMDC.HHZ. 2018-03-18T06:18:53.52 0.3 undecidable manual S 146 84.7485 54 0.01 70
IV.EMSG.HHZ. 2018-03-18T06:18:52.12 0.3 undecidable manual S 67 67.0773 115 2.43 18
IV.MSRU.HHZ. 2018-03-18T06:18:48.81 0.1 undecidable manual P 56 133.5663 54 0.09 83
IV.MBFT.HHZ. 2018-03-18T06:18:48.15 0.1 undecidable manual P 290 119.6913 54 1.15 58
IV.HLNI.HHZ. 2018-03-18T06:18:47.37 0.3 undecidable manual S 116 61.5939 117 -0.99 53
IV.HPAC.HHE. 2018-03-18T06:18:47.09 0.1 undecidable manual P 144 120.4905 54 0 87
IV.ESML.HHZ. 2018-03-18T06:18:47.63 0.3 undecidable manual S 87 55.9995 119 0.58 67
IV.IVGP.HHN. 2018-03-18T06:18:46.07 0.6 undecidable manual P 35 109.2129 54 0.38 41
IV.MMGO.HHN. 2018-03-18T06:18:46.98 0.3 undecidable manual P 274 111.4995 54 1 47
IV.RAFF.HHZ. 2018-03-18T06:18:45.51 0.3 undecidable manual S 166 42.2244 127 1.55 42
IV.PLLN.EHZ. 2018-03-18T06:18:45.34 0.3 undecidable manual S 349 45.4212 125 0.69 64
IV.IFIL.HHZ. 2018-03-18T06:18:44.75 0.3 undecidable manual P 15 111.7992 54 -1.26 43
IV.IACL.HHE. 2018-03-18T06:18:44.00 0.1 undecidable manual P 5 105.0171 54 -1.16 62
IV.MPG.SHZ. 2018-03-18T06:18:44.69 0.1 undecidable manual P 310 99.9222 54 0.16 87
IV.AIO.HHZ. 2018-03-18T06:18:43.87 0.1 undecidable manual P 64 96.5256 54 -0.24 87
IV.NOV.HHZ. 2018-03-18T06:18:43.49 0.1 undecidable manual P 58 92.1411 54 -0.07 91
IV.CSLB.HHZ. 2018-03-18T06:18:43.70 0.3 undecidable manual S 337 41.7249 128 -0.16 74
IV.CORL.HHE. 2018-03-18T06:18:43.81 0.3 undecidable manual P 293 88.9443 54 0.64 58
IV.EPOZ.HHZ. 2018-03-18T06:18:42.57 0.1 undecidable manual P 84 83.5497 54 0.07 93
IV.SSY.HHZ. 2018-03-18T06:18:42.32 0.1 positive manual P 123 87.6456 54 -0.68 79
IV.GALF.HHZ. 2018-03-18T06:18:42.64 0.3 undecidable manual S 65 31.3464 136 0.84 63
IV.AGST.EHZ. 2018-03-18T06:18:42.88 0.1 positive manual P 113 94.3389 54 -0.95 69
IV.SOLUN.HHZ. 2018-03-18T06:18:42.40 0.1 undecidable manual P 312 83.4498 54 -0.08 94
IV.HAGA.HHZ. 2018-03-18T06:18:41.91 0.1 positive manual P 113 87.246 54 -1.04 67
IV.HMDC.HHZ. 2018-03-18T06:18:41.92 0.1 positive manual P 146 84.7485 54 -0.73 78
IV.PETRA.HHZ. 2018-03-18T06:18:41.05 0.3 undecidable manual S 337 29.1486 139 -0.35 72
IV.FAVR.HHZ. 2018-03-18T06:18:41.02 0.1 undecidable manual P 235 62.1933 116 1.26 62
IV.MUCR.HHZ. 2018-03-18T06:18:40.88 0.1 undecidable manual P 48 74.6697 54 -0.51 86
IV.ESLN.HHZ. 2018-03-18T06:18:40.57 0.3 undecidable manual P 80 65.2902 115 0.38 68
IV.EMSG.HHZ. 2018-03-18T06:18:40.99 0.1 undecidable manual P 67 67.0773 115 0.55 86
IV.EPZF.HHZ. 2018-03-18T06:18:39.99 0.1 undecidable manual P 64 59.7957 117 0.56 88
IV.HVZN.HHE. 2018-03-18T06:18:38.94 0.1 positive manual P 138 61.8936 117 -0.78 78
IV.HLNI.HHZ. 2018-03-18T06:18:38.42 0.1 positive manual P 116 61.5939 117 -1.25 62
IV.ESML.HHZ. 2018-03-18T06:18:38.62 0.1 positive manual P 87 55.9995 119 -0.3 93
IV.RESU.HHE. 2018-03-18T06:18:38.94 0.3 undecidable manual S 291 17.4714 153 -0.69 66
IV.ALJA.HHZ. 2018-03-18T06:18:37.71 0.1 undecidable manual P 292 46.4202 125 0.05 99
IV.PLLN.EHZ. 2018-03-18T06:18:37.02 0.1 undecidable manual P 349 45.4212 125 -0.51 91
IV.GIB.HHZ. 2018-03-18T06:18:37.44 0.3 undecidable manual P 337 48.2184 123 -0.45 69
IV.RAFF.HHZ. 2018-03-18T06:18:37.01 0.1 positive manual P 166 42.2244 127 -0.12 99
IV.GALF.HHZ. 2018-03-18T06:18:36.19 0.1 undecidable manual P 65 31.3464 136 0.3 98
IV.CMDO.HHZ. 2018-03-18T06:18:36.76 0.3 undecidable manual P 249 39.5271 129 -0.05 76
IV.CSLB.HHZ. 2018-03-18T06:18:36.43 0.1 undecidable manual P 337 41.7249 128 -0.65 87
IV.PETRA.HHZ. 2018-03-18T06:18:35.86 0.1 undecidable manual P 337 29.1486 139 0.2 100
IV.CAGR.HHZ. 2018-03-18T06:18:35.33 0.3 undecidable manual P 81 22.8549 146 0.27 75
IV.RESU.HHE. 2018-03-18T06:18:35.24 0.3 undecidable manual P 291 17.4714 153 0.61 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHE. ML:2.2 0.00048699999999999997 1.18 AML other m 2018-03-18T06:18:43.37
IV.GALF.HHE. ML:2.2 0.0004895 1.56 AML other m 2018-03-18T06:18:44.07
IV.GALF.HHN. ML:2.5 0.0009115 0.72 AML other m 2018-03-18T06:18:44.70
IV.CSLB.HHE. ML:2.1 0.00026900000000000003 0.44 AML other m 2018-03-18T06:18:45.22
IV.PETRA.HHN. ML:2.2 0.0005335000000000001 0.66 AML other m 2018-03-18T06:18:45.79
IV.RAFF.HHE. ML:2.5 0.0007264999999999999 0.72 AML other m 2018-03-18T06:18:45.62
IV.PLLN.EHE. ML:2.5 0.0006919999999999999 0.72 AML other m 2018-03-18T06:18:46.66
IV.GIB.HHN. ML:2.6 0.0007740000000000001 0.4 AML other m 2018-03-18T06:18:46.79
IV.CSLB.HHN. ML:2.0 0.00023400000000000002 0.46 AML other m 2018-03-18T06:18:48.49
IV.ESML.HHN. ML:2.4 0.000543 1.56 AML other m 2018-03-18T06:18:48.00
IV.HLNI.HHE. ML:2.4 0.0003755 0.94 AML other m 2018-03-18T06:18:49.11
IV.ALJA.HHN. ML:2.0 0.0002305 1.24 AML other m 2018-03-18T06:18:49.23
IV.GIB.HHE. ML:2.4 0.000521 0.76 AML other m 2018-03-18T06:18:50.58
IV.ALJA.HHE. ML:2.0 0.00021899999999999998 0.7 AML other m 2018-03-18T06:18:50.61
IV.HLNI.HHN. ML:2.3 0.000352 0.94 AML other m 2018-03-18T06:18:51.36
IV.PLLN.EHN. ML:2.5 0.0007795 0.48 AML other m 2018-03-18T06:18:51.82
IV.ESML.HHE. ML:2.5 0.0005745 0.76 AML other m 2018-03-18T06:18:52.22
IV.EPZF.HHN. ML:2.7 0.0008645 0.4 AML other m 2018-03-18T06:18:53.62
IV.EPZF.HHE. ML:2.4 0.000461 1.4 AML other m 2018-03-18T06:18:53.89
IV.HAGA.HHE. ML:2.7 0.0005325 1.42 AML other m 2018-03-18T06:18:54.90
IV.HAGA.HHN. ML:2.6 0.000395 0.1 AML other m 2018-03-18T06:18:54.39
IV.HMDC.HHN. ML:2.8 0.0007099999999999999 0.52 AML other m 2018-03-18T06:18:54.46
IV.SSY.HHE. ML:2.8 0.0006565 1.12 AML other m 2018-03-18T06:18:55.66
IV.HMDC.HHE. ML:2.6 0.0005290000000000001 1.18 AML other m 2018-03-18T06:18:55.78
IV.MUCR.HHN. ML:2.3 0.00028100000000000005 0.4 AML other m 2018-03-18T06:18:55.72
IV.AGST.EHN. ML:3.3 0.0021849999999999994 0.16 AML other m 2018-03-18T06:18:55.65
IV.EMSG.HHN. ML:2.8 0.000961 1.1 AML other m 2018-03-18T06:18:55.30
IV.MUCR.HHE. ML:2.2 0.000184 1.26 AML other m 2018-03-18T06:18:55.89
IV.EPOZ.HHN. ML:3.0 0.0011099999999999999 1.24 AML other m 2018-03-18T06:18:55.93
IV.AGST.EHE. ML:3.2 0.00166 1.1 AML other m 2018-03-18T06:18:56.57
IV.SSY.HHN. ML:3.1 0.001285 0.34 AML other m 2018-03-18T06:18:56.77
IV.EPOZ.HHE. ML:2.9 0.0009245 0.28 AML other m 2018-03-18T06:18:57.16
IV.AIO.HHE. ML:2.3 0.000186 0.28 AML other m 2018-03-18T06:18:57.17
IV.EMSG.HHE. ML:2.8 0.00088434105 0.2816 AML other m 2018-03-18T06:18:57.80
IV.AIO.HHN. ML:2.4 0.000247 0.34 AML other m 2018-03-18T06:18:57.72
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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