Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 17-12-2021 and time 04:29:30 (Italy) in region 1 km E Mascalucia (CT)

A magnitude ML 2.2 earthquake occured in region: 1 km E Mascalucia (CT), on

  • 17-12-2021 03:29:30 (UTC)
  • 17-12-2021 04:29:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.5740, 15.0610 at 8 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
Mascalucia CT 1 31958 31958
Tremestieri Etneo CT 1 20589 52547
Gravina di Catania CT 1 25838 78385
Sant'Agata li Battiati CT 2 9479 87864
San Giovanni la Punta CT 3 23060 110924
San Pietro Clarenza CT 3 7743 118667
San Gregorio di Catania CT 4 11966 130633
Camporotondo Etneo CT 5 5023 135656
Pedara CT 5 14102 149758
Aci Bonaccorsi CT 5 3524 153282
Trecastagni CT 5 10910 164192
Viagrande CT 5 8563 172755
Nicolosi CT 6 7463 180218
Valverde CT 6 7840 188058
Aci Sant'Antonio CT 7 17984 206042
Misterbianco CT 8 49410 255452
Belpasso CT 8 28108 283560
Aci Castello CT 8 18723 302283
Aci Catena CT 8 29851 332134
Catania CT 8 314555 646689
Acireale CT 10 52622 699311
Motta Sant'Anastasia CT 11 12116 711427
Ragalna CT 13 3924 715351
Paternò CT 14 48228 763579
Zafferana Etnea CT 14 9517 773096
Santa Venerina CT 15 8592 781688
Santa Maria di Licodia CT 16 7641 789329
Milo CT 18 1087 790416
Biancavilla CT 19 24007 814423

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km N of Catania (314555 inhabitants)
10 Km W of Acireale (52622 inhabitants)
61 Km NW of Siracusa (122291 inhabitants)
78 Km NE of Ragusa (73313 inhabitants)
79 Km SW of Reggio di Calabria (183035 inhabitants)
82 Km SW of Messina (238439 inhabitants)
83 Km NE of Vittoria (63339 inhabitants)
84 Km NE of Modica (54633 inhabitants)
89 Km E of Caltanissetta (63360 inhabitants)
91 Km NE of Gela (75827 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 2021-12-17
03:29:30		 37.5737 15.0613 8 2022-03-30
13:04:29		 Bollettino Sismico Italiano INGV 99687141
Reviewed
Rev200 		ML 2.4 2021-12-17
03:29:30		 37.597 15.029 14 2022-03-14
17:08:05		 Sala Operativa INGV_OE (Catania) 98608651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-17 03:29:30 ± 0.06
Latitude 37.5737 ± 0.0027
Longitude 15.0613 ± 0.0057
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99687141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 469
Semi-minor axis of confidence ellipse (meter) 318
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 78
Number of defining phases 78
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.12141
Epicentral distance of station farthest from the epicenter (degree) 1.21948
Number of stations at which the event was observed 49
Number of stations from which data was used for origin computation 49
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 98608651
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-12-17 03:39:30

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 45
Type of magnitude ML
Reference to an origin 99687141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-14 17:07:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CROCE.HHZ. 2021-12-17T03:29:59.65 0.6 undecidable manual S 210 94.4388 50 0.27 41
IV.ISPIC.EHZ. 2021-12-17T03:29:58.34 0.6 undecidable manual S 189 89.1441 50 0.4 40
IV.HVIT.HHZ. 2021-12-17T03:29:55.93 0.6 undecidable manual S 217 80.1642 50 0.38 41
IV.FERC.HHN.00 2021-12-17T03:29:54.44 0.6 undecidable manual P 43 134.865 50 0.87 31
IV.HMDC.HHZ. 2021-12-17T03:29:54.03 0.6 undecidable manual S 200 72.4719 50 0.52 40
IV.MPNC.HHZ. 2021-12-17T03:29:53.23 0.6 undecidable manual S 22 68.4759 50 0.79 36
IV.JOPP.HHZ. 2021-12-17T03:29:53.44 0.6 undecidable manual P 32 135.3645 50 -0.19 38
IV.IACL.HHZ. 2021-12-17T03:29:51.19 0.6 undecidable manual P 330 122.988 50 -0.55 36
IV.IFIL.HHE. 2021-12-17T03:29:50.58 0.6 undecidable manual P 339 117.7932 50 -0.35 38
IV.HSRS.HHZ. 2021-12-17T03:29:49.12 0.6 undecidable manual S 165 55.2003 50 0.23 45
IV.HVZN.HHZ. 2021-12-17T03:29:48.80 0.6 undecidable manual S 215 53.4021 50 0.38 43
IV.PLLN.EHZ. 2021-12-17T03:29:48.42 0.6 undecidable manual P 300 92.9403 50 1.32 27
IV.MPAZ.HHZ. 2021-12-17T03:29:47.43 0.3 undecidable manual P 63 92.9403 50 0.32 61
IV.IVUG.HHZ. 2021-12-17T03:29:47.03 0.3 undecidable manual P 356 91.4418 50 0.16 63
IV.SSY.HHN. 2021-12-17T03:29:47.08 0.6 undecidable manual S 179 46.1205 50 0.6 41
IV.IVGP.HHN. 2021-12-17T03:29:46.70 0.3 undecidable manual P 355 91.7415 50 -0.22 62
IV.CROCE.HHZ. 2021-12-17T03:29:46.97 0.1 positive manual P 210 94.4388 50 -0.37 80
IV.MSRU.HHZ. 2021-12-17T03:29:46.30 0.1 undecidable manual P 27 85.9473 50 0.27 83
IV.ISPIC.EHZ. 2021-12-17T03:29:46.10 0.1 undecidable manual P 189 89.1441 50 -0.41 80
IV.HVIT.HHZ. 2021-12-17T03:29:44.97 0.3 undecidable manual P 217 80.1642 50 -0.16 65
IV.MTTG.HHZ. 2021-12-17T03:29:44.66 0.3 undecidable manual P 49 73.4709 50 0.55 60
IV.HAGA.HHN. 2021-12-17T03:29:43.38 0.6 undecidable manual S 166 33.0447 103 0.72 40
IV.RAFF.HHZ. 2021-12-17T03:29:43.94 0.1 undecidable manual P 238 72.8715 50 -0.07 89
IV.HMDC.HHZ. 2021-12-17T03:29:43.49 0.1 undecidable manual P 200 72.4719 50 -0.46 82
IV.MSFR.HHZ. 2021-12-17T03:29:43.41 0.3 undecidable manual P 321 65.5899 50 0.52 61
IV.MPNC.HHZ. 2021-12-17T03:29:43.29 0.1 undecidable manual P 22 68.4759 50 -0.04 90
IV.HCRL.HHZ. 2021-12-17T03:29:42.84 0.6 undecidable manual S 185 32.3454 103 0.43 44
IV.MCPD.HHZ. 2021-12-17T03:29:42.86 0.3 undecidable manual P 335 67.1772 50 -0.27 65
IT.LNT.HGZ. 2021-12-17T03:29:42.77 0.6 undecidable manual S 189 32.0457 103 0.45 44
IV.ECTS.HHN. 2021-12-17T03:29:42.97 0.6 undecidable manual S 9 34.6431 102 -0.2 46
IV.HLNI.HHZ. 2021-12-17T03:29:41.50 0.6 undecidable manual S 214 30.0477 104 -0.13 48
IV.ESCV.HHE. 2021-12-17T03:29:41.56 0.6 undecidable manual S 312 28.9488 104 0.3 46
IV.EPIT.HHZ. 2021-12-17T03:29:40.63 0.6 undecidable manual S 359 26.3514 106 0.23 47
IV.HSRS.HHZ. 2021-12-17T03:29:40.97 0.1 negative manual P 165 55.2003 50 -0.32 87
IV.EMNR.HHZ. 2021-12-17T03:29:40.64 0.6 undecidable manual S 353 27.1506 105 -0.02 49
IV.MUCR.HHZ. 2021-12-17T03:29:40.87 0.3 undecidable manual P 343 54.6009 50 -0.32 66
IV.HVZN.HHZ. 2021-12-17T03:29:40.56 0.1 undecidable manual P 215 53.4021 50 -0.45 85
IV.ECZM.HHZ. 2021-12-17T03:29:39.15 0.6 undecidable manual S 322 22.2555 108 0.11 48
IV.SSY.HHN. 2021-12-17T03:29:39.69 0.1 undecidable manual P 179 46.1205 50 -0.2 91
IV.AIO.HHZ. 2021-12-17T03:29:39.61 0.3 undecidable manual P 19 46.62 50 -0.35 66
IV.ECHR.HNZ. 2021-12-17T03:29:39.14 0.6 undecidable manual S 314 18.0708 112 1.47 28
IV.ESAL.HHZ. 2021-12-17T03:29:39.44 0.6 undecidable manual S 18 21.1677 109 0.77 40
IV.ECBD.HHZ. 2021-12-17T03:29:39.18 0.6 undecidable manual S 6 23.0547 108 -0.11 48
IV.EPDN.HHZ. 2021-12-17T03:29:38.56 0.6 undecidable manual S 350 21.6672 109 -0.29 47
IV.EMCN.HHZ. 2021-12-17T03:29:38.97 0.6 undecidable manual S 354 24.2535 107 -0.73 41
IV.ESCV.HHE. 2021-12-17T03:29:37.06 0.1 negative manual P 312 28.9488 104 0.18 94
IT.LNT.HGZ. 2021-12-17T03:29:37.26 0.1 undecidable manual P 189 32.0457 103 -0.23 93
IV.EMFS.HHZ. 2021-12-17T03:29:37.33 0.6 undecidable manual S 341 17.0718 113 -0.04 50
IV.ECTS.HHN. 2021-12-17T03:29:37.48 0.1 undecidable manual P 9 34.6431 102 -0.5 87
IV.HAGA.HHN. 2021-12-17T03:29:37.29 0.3 undecidable manual P 166 33.0447 103 -0.4 67
IV.ESML.HHZ. 2021-12-17T03:29:37.96 0.6 undecidable manual S 287 16.7721 114 0.71 41
IV.EMFO.HHZ. 2021-12-17T03:29:37.14 0.6 undecidable manual S 8 18.1707 112 -0.56 44
IV.EPZF.HHZ. 2021-12-17T03:29:37.56 0.3 undecidable manual P 327 33.0447 103 -0.12 71
IV.HCRL.HHZ. 2021-12-17T03:29:37.34 0.1 negative manual P 185 32.3454 103 -0.2 93
IV.ESLN.HHZ. 2021-12-17T03:29:37.28 0.6 undecidable manual S 330 15.2736 116 0.48 45
IV.EPIT.HHZ. 2021-12-17T03:29:36.27 0.1 negative manual P 359 26.3514 106 -0.11 96
IV.EMPL.HHN. 2021-12-17T03:29:36.67 0.6 undecidable manual S 326 14.1747 118 0.23 48
IV.EFIU.HHN. 2021-12-17T03:29:36.88 0.1 negative manual P 29 27.2505 105 0.32 92
IV.EMNR.HHZ. 2021-12-17T03:29:36.32 0.1 positive manual P 353 27.1506 105 -0.21 94
IV.ESPC.HHZ. 2021-12-17T03:29:36.32 0.6 undecidable manual S 347 13.4754 119 0.08 49
IV.HLNI.HHZ. 2021-12-17T03:29:36.74 0.1 negative manual P 214 30.0477 104 -0.35 91
IV.EVRN.HHZ. 2021-12-17T03:29:36.71 0.6 undecidable manual S 27 14.3745 117 0.2 48
IV.ECBD.HHZ. 2021-12-17T03:29:35.35 0.1 undecidable manual P 6 23.0547 108 -0.39 91
IV.ECNE.HHZ. 2021-12-17T03:29:35.29 0.6 undecidable manual P 346 21.867 109 -0.23 47
IV.ESVO.HHZ. 2021-12-17T03:29:35.85 0.3 undecidable manual P 336 24.2535 107 -0.13 72
IV.EMCN.HHZ. 2021-12-17T03:29:35.41 0.1 undecidable manual P 354 24.2535 107 -0.57 87
IV.ESAL.HHZ. 2021-12-17T03:29:35.89 0.1 positive manual P 18 21.1677 109 0.51 89
IV.EPDN.HHZ. 2021-12-17T03:29:35.01 0.1 negative manual P 350 21.6672 109 -0.48 90
IV.ECHR.HNZ. 2021-12-17T03:29:35.01 0.1 negative manual P 314 18.0708 112 0.2 96
IV.ECZM.HHZ. 2021-12-17T03:29:35.79 0.1 negative manual P 322 22.2555 108 0.19 95
IV.EPOZ.HHN. 2021-12-17T03:29:35.18 0.1 undecidable manual P 46 15.5733 115 0.82 79
IV.EMPL.HHN. 2021-12-17T03:29:34.29 0.1 negative manual P 326 14.1747 118 0.19 96
IV.EMFS.HHZ. 2021-12-17T03:29:34.38 0.1 negative manual P 341 17.0718 113 -0.25 95
IV.ESLN.HHZ. 2021-12-17T03:29:34.30 0.1 negative manual P 330 15.2736 116 0 100
IV.ESML.HHZ. 2021-12-17T03:29:34.66 0.1 negative manual P 287 16.7721 114 0.1 98
IV.EVRN.HHZ. 2021-12-17T03:29:34.48 0.1 negative manual P 27 14.3745 117 0.34 93
IV.EMFO.HHZ. 2021-12-17T03:29:34.36 0.1 negative manual P 8 18.1707 112 -0.46 90
IV.ESPC.HHZ. 2021-12-17T03:29:33.85 0.1 negative manual P 347 13.4754 119 -0.13 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMPL.HHN. ML:3.2 0.0159088275 0.4608 AML other m 2021-12-17T03:29:37.59
IV.EVRN.HNN. ML:2.7 0.006170258499999999 0.6304 AML other m 2021-12-17T03:29:37.81
IV.EMPL.HHE. ML:2.9 0.009765619000000001 0.4 AML other m 2021-12-17T03:29:37.81
IV.EVRN.HNE. ML:2.7 0.0049301825 0.2112 AML other m 2021-12-17T03:29:37.88
IV.ESML.HHN. ML:2.6 0.003689871 0.28 AML other m 2021-12-17T03:29:38.42
IV.ESML.HNN. ML:2.6 0.003630842 0.2896 AML other m 2021-12-17T03:29:38.43
IV.ESML.HHE. ML:2.4 0.0022621815 0.28 AML other m 2021-12-17T03:29:38.45
IV.ESML.HNE. ML:2.3 0.0019901055 0.2816 AML other m 2021-12-17T03:29:38.46
IV.ESAL.HHE. ML:2.3 0.0015163359999999999 0.1792 AML other m 2021-12-17T03:29:39.78
IV.EPIT.HHN. ML:2.6 0.002438834 0.52 AML other m 2021-12-17T03:29:41.10
IV.HLNI.HHE. ML:2.2 0.0007316298 0.16 AML other m 2021-12-17T03:29:41.69
IV.EPIT.HHE. ML:2.1 0.0008258573500000001 0.2208 AML other m 2021-12-17T03:29:41.86
IV.HLNI.HHN. ML:2.2 0.0008458550000000001 0.6016 AML other m 2021-12-17T03:29:42.05
IV.ESCV.HHE. ML:2.4 0.00117451 0.6992 AML other m 2021-12-17T03:29:42.87
IV.HCRL.HHE. ML:2.2 0.0006864462499999999 0.4 AML other m 2021-12-17T03:29:43.34
IV.HCRL.HHN. ML:2.4 0.0012395000000000002 0.3 AML other m 2021-12-17T03:29:43.40
IV.ECTS.HHN. ML:1.9 0.00036671505000000006 0.3584 AML other m 2021-12-17T03:29:43.42
IV.HAGA.HHN. ML:2.1 0.000636539 0.52 AML other m 2021-12-17T03:29:43.45
IV.HAGA.HHE. ML:1.8 0.00025962115 0.2 AML other m 2021-12-17T03:29:43.77
IV.ECTS.HHE. ML:2.1 0.0005380229 0.24 AML other m 2021-12-17T03:29:44.09
IV.AIO.HHE. ML:1.8 0.00018917549999999998 0.4992 AML other m 2021-12-17T03:29:48.22
IV.AIO.HHN. ML:1.9 0.0002079931 0.5792 AML other m 2021-12-17T03:29:48.62
IV.HVZN.HHE. ML:2.4 0.0006082961 0.4608 AML other m 2021-12-17T03:29:49.21
IV.HSRS.HHN. ML:2.1 0.0003195 0.46 AML other m 2021-12-17T03:29:49.55
IV.HSRS.HHE. ML:2.2 0.000338 0.52 AML other m 2021-12-17T03:29:49.86
IV.HVZN.HHN. ML:2.4 0.0006043132500000001 0.3808 AML other m 2021-12-17T03:29:49.99
IV.MSFR.HHE. ML:1.6 0.000066905465 0.8992 AML other m 2021-12-17T03:29:53.57
IV.MPNC.HHE. ML:2.2 0.00027736165 0.52 AML other m 2021-12-17T03:29:53.79
IV.MPNC.HHN. ML:2.4 0.00041549999999999996 0.32 AML other m 2021-12-17T03:29:53.81
IV.MCPD.HHE. ML:1.6 0.000074072255 0.84 AML other m 2021-12-17T03:29:54.19
IV.MCPD.HHN. ML:1.9 0.00014800000000000002 0.44 AML other m 2021-12-17T03:29:55.70
IV.MUCR.HHN. ML:1.9 0.0001865 0.86 AML other m 2021-12-17T03:29:55.12
IV.RAFF.HHE. ML:2.0 0.00016339362 0.2592 AML other m 2021-12-17T03:29:56.32
IV.ISPIC.EHN. ML:2.1 0.00013263750000000002 0.32 AML other m 2021-12-17T03:29:58.80
IV.IVGP.HHE. ML:1.7 0.000061593405 0.3008 AML other m 2021-12-17T03:29:59.58
IV.ISPIC.HNE. ML:2.2 0.00020952034 0.4 AML other m 2021-12-17T03:30:00.05
IV.ISPIC.EHE. ML:2.1 0.0001504076 0.4 AML other m 2021-12-17T03:30:00.05
IV.CROCE.HNE. ML:2.6 0.0004049176 0.5504 AML other m 2021-12-17T03:30:00.30
IV.CROCE.HHE. ML:2.5 0.00030910345 0.5408 AML other m 2021-12-17T03:30:00.30
IV.CROCE.HNN. ML:2.4 0.00023951095 0.36 AML other m 2021-12-17T03:30:00.37
IV.CROCE.HHN. ML:2.3 0.00019579945 0.3392 AML other m 2021-12-17T03:30:00.36
IV.IVGP.HHN. ML:1.8 0.00008045073 0.9808 AML other m 2021-12-17T03:30:00.28
IV.JOPP.HHE. ML:1.7 0.000027768069999999997 0.72 AML other m 2021-12-17T03:30:11.56
IV.JOPP.HHN. ML:2.0 0.000052751215 0.32 AML other m 2021-12-17T03:30:12.22
IV.JOPP.HNN. ML:2.0 0.000054882455000000005 0.3904 AML other m 2021-12-17T03:30:12.25
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