Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 03-12-2018 and time 05:23:25 (Italy) in region 4 km W Sperlinga (EN)

A magnitude ML 2.3 earthquake occured in region: 4 km W Sperlinga (EN), on

  • 03-12-2018 04:23:25 (UTC)
  • 03-12-2018 05:23:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7520, 14.3130 at 59 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
Sperlinga EN 4 805 805
Nicosia EN 8 13899 14704
Gangi PA 11 6811 21515
Leonforte EN 14 13439 34954
Castel di Lucio ME 15 1294 36248
Nissoria EN 16 3000 39248
Assoro EN 17 5191 44439
Capizzi ME 18 3176 47615
Cerami EN 18 2006 49621
Calascibetta EN 18 4528 54149
Geraci Siculo PA 18 1945 56094
Alimena PA 19 2032 58126
Bompietro PA 19 1401 59527
Petralia Soprana PA 19 3360 62887

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NE of Caltanissetta (63360 inhabitants)
74 Km W of Catania (314555 inhabitants)
76 Km N of Gela (75827 inhabitants)
77 Km W of Acireale (52622 inhabitants)
79 Km E of Bagheria (55387 inhabitants)
81 Km NE of Agrigento (59770 inhabitants)
91 Km N of Vittoria (63339 inhabitants)
93 Km E of Palermo (674435 inhabitants)
99 Km NW of Ragusa (73313 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 2.3 2018-12-03
04:23:25		 37.7522 14.3133 59 2019-06-04
09:16:18		 Bollettino Sismico Italiano INGV 68757671
Reviewed
Rev100 		ML 2.2 2018-12-03
04:23:24		 37.747 14.2787 59 2018-12-03
04:33:41		 Sala Sismica INGV-Roma 63601411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-03 04:23:25 ± 0.23
Latitude 37.7522 ± 0.0108
Longitude 14.3133 ± 0.0136
Depth (km) 59 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68757671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1397
Semi-minor axis of confidence ellipse (meter) 165
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 40
Circular confidence region, given by single value of horizontal uncertainty (meter) 1400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
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) 0.53
Epicentral distance of station closest to the epicenter (degree) 0.19695
Epicentral distance of station farthest from the epicenter (degree) 1.09088
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 63601411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-03 04:33:41

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 68757671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-21 11:56:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2018-12-03T04:23:53.65 0.6 undecidable manual S 134 93.9393 111 0.27 41
IV.HMDC.HHZ. 2018-12-03T04:23:53.53 0.6 undecidable manual S 155 97.2249 110 -0.51 40
IV.HAGA.HHZ. 2018-12-03T04:23:52.05 0.6 undecidable manual S 125 90.3429 112 -0.61 37
IV.IACL.HHZ. 2018-12-03T04:23:51.19 0.3 undecidable manual S 2 86.7465 113 -0.74 50
IV.SOLUN.HHZ. 2018-12-03T04:23:49.43 0.6 undecidable manual S 299 78.0663 116 -0.79 37
IV.HVZN.HHE. 2018-12-03T04:23:49.18 0.3 undecidable manual S 151 72.8715 118 -0.05 68
IV.HLNI.HHZ. 2018-12-03T04:23:47.01 0.6 undecidable manual S 132 66.4779 121 -1.03 33
IV.ALJA.HHZ. 2018-12-03T04:23:45.16 0.6 undecidable manual S 270 49.1175 132 0.14 45
IV.MBFT.HHZ. 2018-12-03T04:23:45.78 0.1 undecidable manual P 281 121.0899 105 1.16 55
IV.MNO.SHZ. 2018-12-03T04:23:44.56 0.6 undecidable manual S 59 38.8278 140 1.08 36
IV.MPNC.HHZ. 2018-12-03T04:23:43.35 0.3 undecidable manual P 64 100.9212 109 1.13 47
IV.RESU.HHZ. 2018-12-03T04:23:42.52 0.6 undecidable manual S 243 25.3524 152 0.68 40
IV.PLLN.EHZ. 2018-12-03T04:23:42.64 0.6 undecidable manual S 331 30.5472 147 0.23 47
MN.CLTB.HHZ. 2018-12-03T04:23:42.64 0.3 undecidable manual P 259 98.2239 109 0.73 52
IV.CSLB.HHZ. 2018-12-03T04:23:41.58 0.6 undecidable manual S 313 30.3474 147 -0.81 39
IV.SSY.HHZ. 2018-12-03T04:23:41.32 0.1 undecidable manual P 134 93.9393 111 -0.08 86
IV.CORL.HHZ. 2018-12-03T04:23:41.40 0.1 undecidable manual P 280 89.8434 112 0.48 79
IV.HMDC.HHZ. 2018-12-03T04:23:41.19 0.1 undecidable manual P 155 97.2249 110 -0.6 76
IV.IFIL.HHZ. 2018-12-03T04:23:41.03 0.3 undecidable manual P 14 92.9403 111 -0.25 61
IV.GALF.HHZ. 2018-12-03T04:23:41.94 0.6 undecidable manual S 102 22.6551 155 0.36 47
IV.AIO.HHZ. 2018-12-03T04:23:40.71 0.3 undecidable manual P 73 84.1491 114 0.44 63
IV.HAGA.HHZ. 2018-12-03T04:23:40.50 0.3 undecidable manual P 125 90.3429 112 -0.49 59
IV.NOV.HHZ. 2018-12-03T04:23:40.34 0.3 undecidable manual P 67 78.2661 116 0.73 59
IV.FAVR.HHN. 2018-12-03T04:23:40.59 0.1 undecidable manual P 227 78.2661 116 0.98 63
IV.IACL.HHZ. 2018-12-03T04:23:39.70 0.3 undecidable manual P 2 86.7465 113 -0.86 49
IV.CLTA.HHZ. 2018-12-03T04:23:39.17 0.1 undecidable manual P 205 72.7716 118 0.17 86
IV.SOLUN.HHZ. 2018-12-03T04:23:38.92 0.1 undecidable manual P 299 78.0663 116 -0.66 77
IV.CMDO.HHZ. 2018-12-03T04:23:38.16 0.1 undecidable manual P 234 53.7018 129 1.15 61
IV.HVZN.HHE. 2018-12-03T04:23:38.50 0.1 undecidable manual P 151 72.8715 118 -0.5 83
IV.MUCR.HHZ. 2018-12-03T04:23:38.09 0.1 undecidable manual P 56 58.6968 126 0.58 85
IV.EMSG.HHZ. 2018-12-03T04:23:38.31 0.3 undecidable manual P 82 56.2992 127 1.04 53
IV.EPZF.HHZ. 2018-12-03T04:23:37.46 0.3 undecidable manual P 80 48.3183 132 0.96 55
IV.HLNI.HHZ. 2018-12-03T04:23:37.42 0.1 undecidable manual P 132 66.4779 121 -0.9 70
IV.ALJA.HHZ. 2018-12-03T04:23:36.22 0.1 undecidable manual P 270 49.1175 132 -0.35 90
IV.MNO.SHZ. 2018-12-03T04:23:35.95 0.1 undecidable manual P 59 38.8278 140 0.26 94
IV.PLLN.EHZ. 2018-12-03T04:23:34.45 0.3 undecidable manual P 331 30.5472 147 -0.62 63
IV.GALF.HHZ. 2018-12-03T04:23:34.45 0.3 undecidable manual P 102 22.6551 155 -0.14 72
IV.RESU.HHZ. 2018-12-03T04:23:34.05 0.3 undecidable manual P 243 25.3524 152 -0.69 64
IV.CSLB.HHZ. 2018-12-03T04:23:34.02 0.1 undecidable manual P 313 30.3474 147 -1.04 71
MN.VAE.HHZ. 2018-12-03T04:23:34.93 0.1 undecidable manual P 174 31.6461 146 -0.21 95
IV.CAGR.HHE. 2018-12-03T04:23:34.55 0.1 undecidable manual P 131 21.867 156 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHN. ML:2.1 0.000246 0.5 AML other m 2018-12-03T04:23:43.50
IV.GALF.HHE. ML:2.2 0.00033150000000000003 0.72 AML other m 2018-12-03T04:23:43.54
IV.CSLB.HHN. ML:1.6 0.0000679 0.26 AML other m 2018-12-03T04:23:43.49
IV.NOV.HHE. ML:2.3 0.000203 1.58 AML other m 2018-12-03T04:23:44.06
IV.CSLB.HHE. ML:1.6 0.0000715 0.42 AML other m 2018-12-03T04:23:45.28
IV.MNO.SHE. ML:0.0 0.000202 0.24 AML other m 2018-12-03T04:23:46.41
IV.SSY.HHE. ML:2.8 0.000505 0.42 AML other m 2018-12-03T04:23:47.26
IV.HLNI.HHN. ML:2.6 0.00043500000000000006 1.28 AML other m 2018-12-03T04:23:47.78
IV.MNO.SHN. ML:0.0 0.00020750000000000003 0.6 AML other m 2018-12-03T04:23:47.81
IV.HLNI.HHE. ML:2.6 0.000435 1.44 AML other m 2018-12-03T04:23:48.02
IV.PLLN.EHE. ML:1.9 0.000158 1.24 AML other m 2018-12-03T04:23:48.86
IV.PLLN.EHN. ML:2.2 0.0003085 0.42 AML other m 2018-12-03T04:23:48.50
IV.MUCR.HHN. ML:2.1 0.0001565 1.18 AML other m 2018-12-03T04:23:50.76
IV.MUCR.HHE. ML:2.2 0.00019800000000000002 0.58 AML other m 2018-12-03T04:23:51.64
IV.IACL.HHN. ML:2.2 0.0001665 0.22 AML other m 2018-12-03T04:23:52.19
IV.HAGA.HHE. ML:2.3 0.0001875 0.32 AML other m 2018-12-03T04:23:52.25
IV.IACL.HHE. ML:2.2 0.00015 0.22 AML other m 2018-12-03T04:23:52.49
IV.IFIL.HHE. ML:3.0 0.000893 0.82 AML other m 2018-12-03T04:23:53.27
IV.IFIL.HHN. ML:2.6 0.0003179999999999999 0.58 AML other m 2018-12-03T04:23:55.69
IV.CORL.HHN. ML:2.2 0.00014250000000000002 1.62 AML other m 2018-12-03T04:23:55.06
MN.CLTB.HHE. ML:2.2 0.0001175 0.44 AML other m 2018-12-03T04:23:56.07
IV.CORL.HHE. ML:2.4 0.0002055 0.92 AML other m 2018-12-03T04:23:56.37
IV.SSY.HHN. ML:3.2 0.001265 0.6 AML other m 2018-12-03T04:23:57.18
IV.NOV.HHN. ML:2.3 0.00021100000000000003 0.42 AML other m 2018-12-03T04:23:57.47
IV.HAGA.HHN. ML:2.4 0.000209 0.42 AML other m 2018-12-03T04:24:00.86
MN.CLTB.HHN. ML:2.5 0.00024249999999999999 1.38 AML other m 2018-12-03T04:24:10.26
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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