Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 23-12-2021 and time 23:10:32 (Italy) in region 6 km SW Motta Sant'Anastasia (CT)

A magnitude ML 2.2 earthquake occured in region: 6 km SW Motta Sant'Anastasia (CT), on

  • 23-12-2021 22:10:32 (UTC)
  • 23-12-2021 23:10:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.4690, 14.9260 at 10 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
Motta Sant'Anastasia CT 6 12116 12116
Misterbianco CT 9 49410 61526
Paternò CT 12 48228 109754
Camporotondo Etneo CT 13 5023 114777
Belpasso CT 15 28108 142885
San Pietro Clarenza CT 15 7743 150628
Catania CT 15 314555 465183
Gravina di Catania CT 16 25838 491021
Mascalucia CT 16 31958 522979
Santa Maria di Licodia CT 17 7641 530620
Sant'Agata li Battiati CT 17 9479 540099
Tremestieri Etneo CT 18 20589 560688
Ragalna CT 18 3924 564612
Nicolosi CT 19 7463 572075
San Giovanni la Punta CT 19 23060 595135
San Gregorio di Catania CT 19 11966 607101
Biancavilla CT 20 24007 631108

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km W of Catania (314555 inhabitants)
27 Km SW of Acireale (52622 inhabitants)
56 Km NW of Siracusa (122291 inhabitants)
63 Km N of Ragusa (73313 inhabitants)
67 Km NE of Vittoria (63339 inhabitants)
69 Km N of Modica (54633 inhabitants)
75 Km NE of Gela (75827 inhabitants)
76 Km E of Caltanissetta (63360 inhabitants)
95 Km SW of Reggio di Calabria (183035 inhabitants)
98 Km SW of Messina (238439 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 2.2 2021-12-23
22:10:32		 37.4692 14.9258 10 2022-03-30
13:04:42		 Bollettino Sismico Italiano INGV 102532181
Reviewed
Rev100 		ML 2.2 2021-12-23
22:10:32		 37.4647 14.9352 10 2021-12-23
22:15:34		 Sala Sismica INGV-Roma 98869391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-23 22:10:32 ± 0.09
Latitude 37.4692 ± 0.0036
Longitude 14.9258 ± 0.0079
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 102532181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 730
Semi-minor axis of confidence ellipse (meter) 81
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 276
Circular confidence region, given by single value of horizontal uncertainty (meter) 730.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 62
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.12770
Epicentral distance of station farthest from the epicenter (degree) 2.04776
Number of stations at which the event was observed 41
Number of stations from which data was used for origin computation 41
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 68
Type of magnitude ML
Reference to an origin 102532181
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-29 13:55:12

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 68
Type of magnitude ML
Reference to an origin 98869391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-23 22:15:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2021-12-23T22:11:05.44 0.3 undecidable manual P 29 227.3058 38 -1.96 15
IV.CORL.HHZ. 2021-12-23T22:10:57.25 0.3 undecidable manual P 289 150.0387 50 0.25 55
IV.SCIAC.HHZ. 2021-12-23T22:10:57.38 0.3 undecidable manual P 272 160.617 50 -1.25 35
IV.ISPIC.EHZ. 2021-12-23T22:10:56.26 0.6 undecidable manual S 182 76.4679 50 0.85 35
IV.MCPD.HHZ. 2021-12-23T22:10:55.33 0.6 undecidable manual S 347 74.1702 50 0.51 40
IV.CROCE.HHZ. 2021-12-23T22:10:55.96 0.6 undecidable manual S 206 78.6657 50 -0.04 44
IV.IACL.HHZ. 2021-12-23T22:10:52.29 0.3 undecidable manual P 337 128.1717 50 -1.34 37
IV.IFIL.HHZ. 2021-12-23T22:10:52.08 0.3 undecidable manual P 346 125.2746 50 -1.11 42
IV.RAFF.HHZ. 2021-12-23T22:10:51.27 0.6 undecidable manual S 241 56.6988 50 1.12 32
IV.HVIT.HHZ. 2021-12-23T22:10:51.53 0.6 undecidable manual S 214 63.7917 50 -0.51 41
IV.ILOS.HHZ. 2021-12-23T22:10:51.59 1.0 undecidable manual P 1 108.3138 50 1.02 15
IV.HMDC.HHZ. 2021-12-23T22:10:50.72 0.6 undecidable manual S 193 57.9975 50 0.23 44
IV.MSRU.HHZ. 2021-12-23T22:10:49.24 0.3 undecidable manual P 30 101.8203 50 -0.33 60
IV.CSLB.HHZ. 2021-12-23T22:10:49.32 0.3 undecidable manual P 305 92.241 50 1.23 42
IV.HSRS.HHZ. 2021-12-23T22:10:48.64 0.6 undecidable manual S 148 49.2174 50 0.48 43
IV.MTTG.HHZ. 2021-12-23T22:10:47.98 0.3 undecidable manual P 49 90.1431 50 0.21 63
IV.CLTA.HHZ. 2021-12-23T22:10:47.99 0.3 undecidable manual P 248 91.7415 50 -0.03 65
IV.MPNC.HHZ. 2021-12-23T22:10:46.52 0.3 undecidable manual P 26 83.9493 50 -0.29 62
IV.GALF.HHZ. 2021-12-23T22:10:46.91 0.6 undecidable manual S 310 41.4252 50 0.84 38
IV.SSY.HHZ. 2021-12-23T22:10:45.73 0.6 undecidable manual S 159 36.9297 50 0.86 38
IV.CROCE.HHZ. 2021-12-23T22:10:45.26 0.3 undecidable manual P 206 78.6657 50 -0.74 55
IV.MCPD.HHZ. 2021-12-23T22:10:45.26 0.3 undecidable manual P 347 74.1702 50 -0.05 67
IV.ISPIC.EHZ. 2021-12-23T22:10:45.52 0.1 undecidable manual P 182 76.4679 50 -0.13 87
IV.MSFR.HHZ. 2021-12-23T22:10:44.62 0.3 undecidable manual P 335 69.1752 50 0.08 67
IV.ESCV.HHZ. 2021-12-23T22:10:44.31 0.6 undecidable manual S 343 32.3454 50 0.67 41
IV.HVZN.HHZ. 2021-12-23T22:10:44.70 0.6 undecidable manual S 210 37.2294 50 -0.24 46
IV.ECZM.HHN. 2021-12-23T22:10:43.71 0.6 undecidable manual S 356 29.1486 50 0.92 37
IV.HMDC.HHZ. 2021-12-23T22:10:43.49 0.3 undecidable manual P 193 57.9975 50 0.68 58
IV.AIO.HHZ. 2021-12-23T22:10:43.14 0.1 undecidable manual P 26 61.8936 50 -0.27 87
IV.HAGA.HHZ. 2021-12-23T22:10:43.14 0.6 undecidable manual S 135 28.749 50 0.46 44
IV.EVRN.HHZ. 2021-12-23T22:10:43.76 0.6 undecidable manual S 37 30.5472 50 0.58 43
IV.ECHR.HHE. 2021-12-23T22:10:42.30 0.6 undecidable manual S 357 24.1536 113 0.9 37
IV.RAFF.HHZ. 2021-12-23T22:10:42.13 0.1 undecidable manual P 241 56.6988 50 -0.49 84
IV.ESLN.HHZ. 2021-12-23T22:10:42.09 0.6 undecidable manual S 10 25.2525 50 0.34 46
IV.HVIT.HHZ. 2021-12-23T22:10:42.99 0.3 undecidable manual P 214 63.7917 50 -0.72 57
MN.VAE.HHZ. 2021-12-23T22:10:41.79 0.3 undecidable manual P 270 50.4162 50 0.14 68
IV.EMPL.HHZ. 2021-12-23T22:10:41.97 0.6 undecidable manual S 10 23.5542 113 0.74 40
IV.ESPC.HHN. 2021-12-23T22:10:41.85 0.6 undecidable manual S 20 26.3514 50 -0.19 47
IV.HSRS.HHZ. 2021-12-23T22:10:41.13 0.1 undecidable manual P 148 49.2174 50 -0.34 88
IT.LNT.HGZ. 2021-12-23T22:10:41.00 0.6 undecidable manual S 161 21.1677 115 0.55 43
IV.EFIU.HHZ. 2021-12-23T22:10:40.48 0.3 undecidable manual P 35 43.4232 50 -0.1 70
IV.GALF.HHZ. 2021-12-23T22:10:40.22 0.3 undecidable manual P 310 41.4252 50 -0.04 71
IV.ESML.HHZ. 2021-12-23T22:10:39.13 0.6 undecidable manual S 346 17.0718 121 -0.06 50
IV.EPIT.HHN. 2021-12-23T22:10:39.62 0.3 undecidable manual P 17 39.627 50 -0.37 66
IV.SSY.HHZ. 2021-12-23T22:10:39.52 0.1 undecidable manual P 159 36.9297 50 -0.05 95
IV.EMNR.HHZ. 2021-12-23T22:10:39.82 0.3 undecidable manual P 13 39.5271 50 -0.15 70
IV.HVZN.HHZ. 2021-12-23T22:10:39.66 0.1 undecidable manual P 210 37.2294 50 0.04 95
IV.ESVO.HHE. 2021-12-23T22:10:39.37 0.3 undecidable manual P 3 33.744 50 0.28 68
IV.EPOZ.HHZ. 2021-12-23T22:10:39.25 0.1 positive manual P 46 32.2455 50 0.4 89
IV.HAGA.HHZ. 2021-12-23T22:10:38.15 0.1 negative manual P 135 28.749 50 -0.16 95
IV.EVRN.HHZ. 2021-12-23T22:10:38.42 0.3 undecidable manual P 37 30.5472 50 -0.17 71
IV.ECBD.HHN. 2021-12-23T22:10:38.86 0.3 undecidable manual P 22 37.2294 50 -0.76 58
IV.ECZM.HHN. 2021-12-23T22:10:38.88 0.3 undecidable manual P 356 29.1486 50 0.51 65
IV.ESCV.HHZ. 2021-12-23T22:10:38.80 0.3 undecidable manual P 343 32.3454 50 -0.06 72
IV.HLNI.HHZ. 2021-12-23T22:10:38.72 0.3 undecidable manual S 200 14.1747 125 0.35 69
IV.ESLN.HHZ. 2021-12-23T22:10:37.75 0.1 undecidable manual P 10 25.2525 50 -0.02 98
IV.EMPL.HHZ. 2021-12-23T22:10:37.35 0.3 undecidable manual P 10 23.5542 113 -0.12 72
IV.ESPC.HHN. 2021-12-23T22:10:37.49 0.1 undecidable manual P 20 26.3514 50 -0.44 89
IV.ECHR.HHE. 2021-12-23T22:10:37.45 0.3 undecidable manual P 357 24.1536 113 -0.11 73
IT.LNT.HGZ. 2021-12-23T22:10:36.92 0.3 undecidable manual P 161 21.1677 115 -0.1 73
IV.HLNI.HHZ. 2021-12-23T22:10:35.78 0.1 negative manual P 200 14.1747 125 -0.03 100
IV.ESML.HHZ. 2021-12-23T22:10:35.90 0.3 undecidable manual P 346 17.0718 121 -0.39 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHE. ML:2.7 0.004640000000000001 0.14 AML other m 2021-12-23T22:10:38.95
IV.HLNI.HHN. ML:2.3 0.0021000000000000003 0.12 AML other m 2021-12-23T22:10:39.01
IV.ESML.HHE. ML:1.9 0.0007235000000000001 0.84 AML other m 2021-12-23T22:10:39.70
IV.ESML.HNE. ML:1.9 0.000687 0.86 AML other m 2021-12-23T22:10:39.71
IV.ESML.HHN. ML:1.8 0.0004995 0.24 AML other m 2021-12-23T22:10:41.09
IV.ESML.HNN. ML:1.8 0.000497 1.42 AML other m 2021-12-23T22:10:41.09
IV.EMPL.HHN. ML:2.8 0.003535 0.24 AML other m 2021-12-23T22:10:42.41
IV.RAFF.HHN. ML:2.0 0.0002 0.52 AML other m 2021-12-23T22:10:42.92
IV.EMPL.HHE. ML:2.6 0.00283 0.24 AML other m 2021-12-23T22:10:43.56
IV.HAGA.HHN. ML:1.9 0.000423 0.1 AML other m 2021-12-23T22:10:43.54
IV.HAGA.HHE. ML:2.1 0.000728 0.6 AML other m 2021-12-23T22:10:43.29
IV.EVRN.HHE. ML:2.2 0.000747 0.36 AML other m 2021-12-23T22:10:44.75
IV.EPOZ.HNE. ML:2.0 0.0005250000000000001 0.14 AML other m 2021-12-23T22:10:45.68
IV.EPOZ.HHN. ML:2.0 0.000457 0.16 AML other m 2021-12-23T22:10:45.67
IV.EPOZ.HHE. ML:2.0 0.0004904999999999999 1.58 AML other m 2021-12-23T22:10:46.98
IV.SSY.HHE. ML:2.5 0.0012655000000000001 1.44 AML other m 2021-12-23T22:10:46.95
IV.EPOZ.HNN. ML:2.0 0.0004125 1.58 AML other m 2021-12-23T22:10:47.13
IV.EVRN.HNE. ML:2.1 0.0005885 0.2 AML other m 2021-12-23T22:10:47.34
IV.EVRN.HNN. ML:2.2 0.0008365 0.96 AML other m 2021-12-23T22:10:47.49
IV.EVRN.HHN. ML:2.2 0.0007865 0.96 AML other m 2021-12-23T22:10:47.49
IV.ESCV.HHN. ML:2.3 0.0008285 0.72 AML other m 2021-12-23T22:10:48.19
IV.ESCV.HHE. ML:2.2 0.00076 0.3 AML other m 2021-12-23T22:10:48.48
IV.SSY.HNN. ML:2.4 0.000894 0.78 AML other m 2021-12-23T22:10:48.51
IV.HSRS.HHN. ML:2.0 0.0002455 0.56 AML other m 2021-12-23T22:10:48.94
IV.SSY.HHN. ML:2.9 0.003165 1.18 AML other m 2021-12-23T22:10:49.80
IV.SSY.HNE. ML:2.4 0.0008665000000000001 1.5 AML other m 2021-12-23T22:10:50.80
IV.HVZN.HHE. ML:2.4 0.0008755 0.5 AML other m 2021-12-23T22:10:50.20
IV.GALF.HHN. ML:2.3 0.0006374999999999999 0.46 AML other m 2021-12-23T22:10:50.66
IV.RAFF.HHE. ML:2.0 0.000214 0.24 AML other m 2021-12-23T22:10:51.72
IV.HSRS.HHE. ML:1.8 0.0001705 0.4 AML other m 2021-12-23T22:10:51.64
IV.HMDC.HHN. ML:2.3 0.00046750000000000003 0.82 AML other m 2021-12-23T22:10:51.92
IV.HMDC.HNN. ML:2.3 0.00041500000000000006 0.6 AML other m 2021-12-23T22:10:51.93
IV.GALF.HHE. ML:2.2 0.0005309999999999999 0.82 AML other m 2021-12-23T22:10:52.78
IV.AIO.HHE. ML:1.9 0.000157 1.32 AML other m 2021-12-23T22:10:52.07
IV.HVZN.HHN. ML:2.4 0.001048 1.48 AML other m 2021-12-23T22:10:52.98
IV.HVIT.HHN. ML:2.4 0.000424 0.6 AML other m 2021-12-23T22:10:53.01
IV.HMDC.HHE. ML:2.4 0.0005480000000000001 0.18 AML other m 2021-12-23T22:10:53.57
IV.HMDC.HNE. ML:2.4 0.000491 0.2 AML other m 2021-12-23T22:10:53.48
IV.AIO.HHN. ML:1.7 0.00010005 0.42 AML other m 2021-12-23T22:10:54.63
IV.MSFR.HHN. ML:1.7 0.00008895000000000001 0.72 AML other m 2021-12-23T22:10:55.22
IV.HVIT.HHE. ML:2.2 0.0002855 0.12 AML other m 2021-12-23T22:10:55.90
IV.MCPD.HHE. ML:2.2 0.000241 1.58 AML other m 2021-12-23T22:10:55.91
IV.MSFR.HHE. ML:1.6 0.00006494999999999999 0.44 AML other m 2021-12-23T22:10:56.30
IV.CROCE.HNE. ML:2.4 0.0003615 0.74 AML other m 2021-12-23T22:10:56.34
IV.CROCE.HHE. ML:2.3 0.00026549999999999995 0.72 AML other m 2021-12-23T22:10:56.35
IV.CROCE.HHN. ML:2.2 0.00020250000000000002 0.16 AML other m 2021-12-23T22:10:56.82
IV.CROCE.HNN. ML:2.3 0.00026250000000000004 0.16 AML other m 2021-12-23T22:10:56.90
IV.ISPIC.EHN. ML:2.6 0.0006414999999999999 0.56 AML other m 2021-12-23T22:10:56.56
IV.ISPIC.HNN. ML:2.6 0.000665 0.58 AML other m 2021-12-23T22:10:56.55
IV.MCPD.HHN. ML:2.0 0.0001395 1.4 AML other m 2021-12-23T22:10:56.21
IV.ISPIC.HNE. ML:2.7 0.0008240000000000001 0.94 AML other m 2021-12-23T22:10:57.48
IV.ISPIC.EHE. ML:2.7 0.0007709999999999999 0.92 AML other m 2021-12-23T22:10:57.48
MN.VAE.HHN. ML:1.6 0.00011229999999999999 0.96 AML other m 2021-12-23T22:10:58.43
IV.MPNC.HHN. ML:2.1 0.0001485 1.5 AML other m 2021-12-23T22:10:59.96
IV.MPNC.HHE. ML:2.0 0.0001385 1.64 AML other m 2021-12-23T22:11:00.87
MN.VAE.HHE. ML:1.6 0.00010499999999999999 0.6 AML other m 2021-12-23T22:11:01.23
IV.MTTG.HHE. ML:1.6 0.000049000000000000005 0.58 AML other m 2021-12-23T22:11:02.97
IV.MTTG.HHN. ML:1.7 0.0000593 0.4 AML other m 2021-12-23T22:11:03.56
IV.MSRU.HHN. ML:2.4 0.000223 0.68 AML other m 2021-12-23T22:11:04.58
IV.MSRU.HHE. ML:2.4 0.000216 1.66 AML other m 2021-12-23T22:11:05.03
IV.IFIL.HHE. ML:2.9 0.0005985000000000001 0.42 AML other m 2021-12-23T22:11:08.67
IV.IFIL.HHN. ML:2.6 0.000247 0.32 AML other m 2021-12-23T22:11:11.40
IV.IACL.HHE. ML:2.4 0.00014830000000000003 0.24 AML other m 2021-12-23T22:11:11.79
IV.IACL.HHN. ML:2.3 0.00012174999999999999 1.68 AML other m 2021-12-23T22:11:12.97
IV.SCIAC.HHN. ML:2.5 0.000131 1.52 AML other m 2021-12-23T22:11:17.23
IV.SCIAC.HNN. ML:2.5 0.0001365 1.52 AML other m 2021-12-23T22:11:17.23
IV.SCIAC.HNE. ML:2.2 0.00007985 0.42 AML other m 2021-12-23T22:11:19.55
IV.SCIAC.HHE. ML:2.2 0.00007975 0.42 AML other m 2021-12-23T22:11:19.55
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