Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 18-12-2021 and time 21:40:35 (UTC) in region 1 km SW Belpasso (CT)

A magnitude ML 2.5 earthquake occured in region: 1 km SW Belpasso (CT), on

  • 18-12-2021 21:40:35 (UTC)
  • 18-12-2021 22:40:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.5840, 14.9670 at 3 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
Belpasso CT 1 28108 28108
Camporotondo Etneo CT 4 5023 33131
San Pietro Clarenza CT 5 7743 40874
Paternò CT 6 48228 89102
Ragalna CT 6 3924 93026
Nicolosi CT 6 7463 100489
Mascalucia CT 8 31958 132447
Misterbianco CT 8 49410 181857
Motta Sant'Anastasia CT 8 12116 193973
Santa Maria di Licodia CT 8 7641 201614
Gravina di Catania CT 9 25838 227452
Pedara CT 9 14102 241554
Tremestieri Etneo CT 9 20589 262143
Sant'Agata li Battiati CT 10 9479 271622
Trecastagni CT 11 10910 282532
Biancavilla CT 11 24007 306539
San Giovanni la Punta CT 11 23060 329599
Viagrande CT 12 8563 338162
Aci Bonaccorsi CT 13 3524 341686
San Gregorio di Catania CT 13 11966 353652
Catania CT 14 314555 668207
Valverde CT 14 7840 676047
Aci Sant'Antonio CT 14 17984 694031
Adrano CT 15 36122 730153
Aci Catena CT 16 29851 760004
Aci Castello CT 16 18723 778727
Zafferana Etnea CT 17 9517 788244
Acireale CT 18 52622 840866
Santa Venerina CT 19 8592 849458

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of Catania (314555 inhabitants)
18 Km W of Acireale (52622 inhabitants)
65 Km NW of Siracusa (122291 inhabitants)
76 Km N of Ragusa (73313 inhabitants)
80 Km NE of Vittoria (63339 inhabitants)
80 Km E of Caltanissetta (63360 inhabitants)
83 Km N of Modica (54633 inhabitants)
84 Km SW of Reggio di Calabria (183035 inhabitants)
85 Km SW of Messina (238439 inhabitants)
86 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 2.5 2021-12-18
21:40:35		 37.5835 14.9673 3 2022-03-30
13:04:26		 Bollettino Sismico Italiano INGV 99322691
Reviewed
Rev200 		ML 2.7 2021-12-18
21:40:34		 37.633 14.946 4 2022-03-15
14:09:30		 Sala Operativa INGV_OE (Catania) 98700261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-18 21:40:35 ± 0.07
Latitude 37.5835 ± 0.0036
Longitude 14.9673 ± 0.0057
Depth (km) 3 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99322691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 514
Semi-minor axis of confidence ellipse (meter) 246
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 98
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 75
Number of defining phases 75
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.07734
Epicentral distance of station farthest from the epicenter (degree) 1.93264
Number of stations at which the event was observed 59
Number of stations from which data was used for origin computation 59
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 67
Type of magnitude ML
Reference to an origin 99322691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-15 14:09:17

ML:2.7

Field Value
Value 2.7
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 98700261
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-12-18 22:00:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2021-12-18T21:41:08.16 0.3 undecidable manual P 30 214.5186 38 -1.59 22
IV.GRI.EHN. 2021-12-18T21:41:06.03 0.1 undecidable manual P 42 186.8685 38 -0.28 62
IV.PLAC.HHZ. 2021-12-18T21:41:02.43 0.6 undecidable manual P 53 160.4172 50 0.08 37
IV.SCIAC.HHZ. 2021-12-18T21:41:02.29 0.6 undecidable manual P 268 164.2134 50 -0.64 31
IV.FERC.HHN.00 2021-12-18T21:40:59.12 0.6 undecidable manual P 46 139.9488 50 -0.07 40
IV.JOPP.HHE. 2021-12-18T21:40:58.32 0.6 undecidable manual P 35 138.9609 50 -0.71 33
IY.OPPI.HHZ. 2021-12-18T21:40:56.48 0.6 undecidable manual P 50 118.5924 50 0.58 37
IV.IFIL.HHE. 2021-12-18T21:40:55.67 0.3 undecidable manual P 343 113.997 50 0.48 58
IV.IACL.HHZ. 2021-12-18T21:40:55.49 0.3 undecidable manual P 333 118.0929 50 -0.33 59
IV.CLTA.HHN. 2021-12-18T21:40:53.57 0.3 undecidable manual P 242 100.4217 50 0.48 59
IV.GIB.HHE. 2021-12-18T21:40:53.26 0.6 undecidable manual P 299 94.0392 50 1.15 30
TV.GMB1.HHE. 2021-12-18T21:40:53.63 0.3 undecidable manual P 48 99.0231 50 0.75 53
3D.OEM8.HHN. 2021-12-18T21:40:52.77 0.3 undecidable manual P 357 98.3238 50 0.01 66
IV.SSY.HHN. 2021-12-18T21:40:52.91 0.6 undecidable manual S 169 48.1185 94 1.01 35
IV.PLLN.EHZ. 2021-12-18T21:40:51.57 0.6 undecidable manual P 302 85.3479 50 0.8 36
IV.RESU.HHZ. 2021-12-18T21:40:51.30 1.0 undecidable manual P 275 80.364 50 1.3 14
IV.IVLT.HHN. 2021-12-18T21:40:51.61 0.3 undecidable manual P 359 90.1431 50 0.1 65
IV.CSLB.HHZ. 2021-12-18T21:40:51.61 0.3 undecidable manual P 296 88.9443 50 0.29 63
IV.IVPL.HNE. 2021-12-18T21:40:51.30 0.3 undecidable manual P 1 87.9453 50 0.13 65
IV.CROCE.HHN. 2021-12-18T21:40:51.02 0.6 undecidable manual P 205 91.6416 50 -0.72 37
IV.IVUG.HHN. 2021-12-18T21:40:51.98 0.3 undecidable manual P 1 90.1431 50 0.47 60
IV.MSRU.HHZ. 2021-12-18T21:40:51.23 0.6 undecidable manual P 32 89.0442 50 -0.12 44
IV.ISPIC.EHZ. 2021-12-18T21:40:50.80 0.6 undecidable manual P 184 89.244 50 -0.58 39
IV.MTTG.HHE. 2021-12-18T21:40:49.97 0.3 undecidable manual P 54 79.2651 50 0.13 66
IV.HVIT.HHZ. 2021-12-18T21:40:48.65 0.6 undecidable manual P 211 76.4679 50 -0.75 37
IV.HMDC.HHN. 2021-12-18T21:40:48.66 0.6 undecidable manual P 193 71.1732 50 0.07 45
IV.MPNC.HHZ. 2021-12-18T21:40:48.23 0.3 undecidable manual P 28 70.9734 50 -0.33 65
IV.MSFR.HHZ. 2021-12-18T21:40:47.27 0.3 undecidable manual P 327 59.7957 50 0.44 65
IV.RAFF.HHZ. 2021-12-18T21:40:47.82 0.3 undecidable manual P 233 66.6777 50 -0.07 69
IV.MCPD.HHZ. 2021-12-18T21:40:46.89 0.6 undecidable manual P 341 62.9925 50 -0.44 43
IV.HSRS.HHE. 2021-12-18T21:40:46.20 0.6 undecidable manual P 158 58.8966 50 -0.49 43
IV.MUCR.HHZ. 2021-12-18T21:40:45.18 0.1 undecidable manual P 351 51.6039 93 -0.34 89
IV.HLNI.HHZ. 2021-12-18T21:40:45.67 0.3 undecidable manual S 198 27.3504 96 0.95 56
IV.EPIT.HHE. 2021-12-18T21:40:44.71 0.6 undecidable manual S 17 26.4513 96 0.32 47
IV.SSY.HHN. 2021-12-18T21:40:44.54 0.6 undecidable manual P 169 48.1185 94 -0.28 45
IV.HVZN.HNE. 2021-12-18T21:40:44.85 0.6 undecidable manual P 206 50.1165 93 -0.37 44
IV.EMCN.HHZ. 2021-12-18T21:40:44.03 0.6 undecidable manual S 14 23.754 97 0.57 44
IV.AIO.HHN. 2021-12-18T21:40:44.64 0.3 undecidable manual P 28 48.9177 93 -0.33 67
IV.ESCV.HHE. 2021-12-18T21:40:43.50 0.6 undecidable manual S 324 22.5552 97 0.46 46
IV.ESVO.HHZ. 2021-12-18T21:40:43.03 0.3 undecidable manual S 355 21.0678 98 0.48 69
IV.GALF.HHZ. 2021-12-18T21:40:42.98 0.6 undecidable manual P 292 37.9287 94 0.2 47
IV.EMFO.HHZ. 2021-12-18T21:40:42.41 0.3 undecidable manual S 33 20.0688 98 0.23 73
IT.LNT.HGZ. 2021-12-18T21:40:42.01 0.3 undecidable manual P 175 32.8449 95 0.24 71
IV.ECNE.HHZ. 2021-12-18T21:40:42.70 0.3 undecidable manual S 9 20.3685 98 0.4 70
IV.EPDN.HHZ. 2021-12-18T21:40:42.73 0.6 undecidable manual S 12 20.6682 98 0.32 47
IV.ECZM.HHZ. 2021-12-18T21:40:41.63 0.3 undecidable manual S 341 17.2716 100 0.38 70
IV.ECTS.HHN. 2021-12-18T21:40:41.87 0.3 undecidable manual P 22 35.742 95 -0.47 67
IV.EMFS.HHZ. 2021-12-18T21:40:41.00 0.3 undecidable manual S 10 15.3735 101 0.43 70
IV.EFIU.HHN. 2021-12-18T21:40:41.40 0.6 undecidable manual P 43 31.2465 95 -0.05 49
IV.EPIT.HHE. 2021-12-18T21:40:40.29 0.3 undecidable manual P 17 26.4513 96 -0.2 72
IV.EMNR.HHZ. 2021-12-18T21:40:40.27 0.1 undecidable manual P 11 26.3514 96 -0.2 96
IV.EPOZ.HHZ. 2021-12-18T21:40:40.40 0.6 undecidable manual P 63 21.7671 98 0.84 40
IV.ESAL.HHN. 2021-12-18T21:40:40.32 0.3 undecidable manual P 38 24.0537 97 0.31 71
IV.ESPC.HHZ. 2021-12-18T21:40:40.57 0.3 undecidable manual S 24 13.1757 103 0.73 63
IV.EPZF.HHE. 2021-12-18T21:40:40.96 0.3 undecidable manual P 340 28.3494 96 0.09 74
IV.HLNI.HHZ. 2021-12-18T21:40:40.90 0.1 undecidable manual P 198 27.3504 96 0.22 96
IV.ESVO.HHZ. 2021-12-18T21:40:39.73 0.1 undecidable manual P 355 21.0678 98 0.3 95
IV.ESLN.HHZ. 2021-12-18T21:40:39.73 0.3 undecidable manual S 3 12.1767 104 0.22 74
IV.EMCN.HHZ. 2021-12-18T21:40:39.32 0.3 undecidable manual P 14 23.754 97 -0.63 65
IV.ECNE.HHZ. 2021-12-18T21:40:39.03 0.3 undecidable manual P 9 20.3685 98 -0.25 72
IV.ECHR.HNZ. 2021-12-18T21:40:39.69 0.3 undecidable manual S 337 12.3765 103 0.12 75
IV.ESCV.HHE. 2021-12-18T21:40:39.27 0.3 undecidable manual P 324 22.5552 97 -0.43 69
IV.EVRN.HHZ. 2021-12-18T21:40:39.13 0.1 undecidable manual P 52 18.87 99 0.15 98
IV.ECBD.HHZ. 2021-12-18T21:40:39.60 0.3 undecidable manual P 26 24.1536 97 -0.44 69
IV.EPDN.HHZ. 2021-12-18T21:40:38.78 0.3 undecidable manual P 12 20.6682 98 -0.56 67
IV.EMPL.HHZ. 2021-12-18T21:40:38.69 0.3 undecidable manual S 1 10.5783 106 -0.28 73
IV.ECZM.HHZ. 2021-12-18T21:40:38.33 0.1 undecidable manual P 341 17.2716 100 -0.35 95
IV.EMFO.HHZ. 2021-12-18T21:40:38.70 0.3 undecidable manual P 33 20.0688 98 -0.51 68
IV.EMFS.HHZ. 2021-12-18T21:40:38.00 0.1 undecidable manual P 10 15.3735 101 -0.28 96
IV.ESML.HHE. 2021-12-18T21:40:38.16 0.3 undecidable manual S 296 8.5803 109 -0.17 75
IV.ESPC.HHZ. 2021-12-18T21:40:37.74 0.1 undecidable manual P 24 13.1757 103 -0.12 100
IV.EMPL.HHZ. 2021-12-18T21:40:37.13 0.1 negative manual P 1 10.5783 106 -0.23 98
IV.ESLN.HHZ. 2021-12-18T21:40:37.40 0.1 undecidable manual P 3 12.1767 104 -0.27 97
IV.ECHR.HNZ. 2021-12-18T21:40:37.19 0.3 undecidable manual P 337 12.3765 103 -0.51 69
IV.ESML.HHE. 2021-12-18T21:40:36.67 0.1 undecidable manual P 296 8.5803 109 -0.31 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMPL.HHE. ML:3.5 0.059001665 0.5248 AML other m 2021-12-18T21:40:39.37
IV.EMPL.HHN. ML:3.6 0.06869811 0.4608 AML other m 2021-12-18T21:40:39.65
IV.ESCV.HHN. ML:2.6 0.00286763 2.4064 AML other m 2021-12-18T21:40:44.46
IV.HLNI.HHN. ML:1.6 0.00025743635 2.9312 AML other m 2021-12-18T21:40:43.91
IV.ESCV.HHE. ML:2.4 0.0020593015 0.5632 AML other m 2021-12-18T21:40:43.79
IV.ESAL.HHN. ML:2.5 0.0022436265 0.32 AML other m 2021-12-18T21:40:44.09
IV.ESAL.HHE. ML:2.6 0.0025111029999999998 0.9216 AML other m 2021-12-18T21:40:43.65
IV.EPIT.HHN. ML:2.7 0.003092454 2.176 AML other m 2021-12-18T21:40:45.70
IV.EPIT.HHE. ML:2.7 0.0033423725 0.3968 AML other m 2021-12-18T21:40:44.77
IV.HLNI.HHE. ML:1.6 0.00023191899999999997 1.9968 AML other m 2021-12-18T21:40:44.82
IV.EFIU.HHN. ML:2.1 0.0006388635 1.344 AML other m 2021-12-18T21:40:45.70
IV.EPZF.HHE. ML:2.4 0.001403046 0.3456 AML other m 2021-12-18T21:40:45.93
IV.EPZF.HHN. ML:2.6 0.002324131 0.8448 AML other m 2021-12-18T21:40:46.34
IV.EFIU.HHE. ML:2.2 0.0007925869 0.448 AML other m 2021-12-18T21:40:46.64
IV.EPOZ.HHN. ML:2.8 0.0047799999999999995 1.22 AML other m 2021-12-18T21:40:47.21
IV.EPOZ.HHE. ML:2.9 0.00564 0.62 AML other m 2021-12-18T21:40:50.02
IV.EPOZ.HNE. ML:2.9 0.00626 0.6 AML other m 2021-12-18T21:40:50.03
IV.SSY.HNN. ML:2.1 0.0003731421 1.6256 AML other m 2021-12-18T21:40:51.96
IV.ECTS.HHN. ML:2.6 0.001515 0.72 AML other m 2021-12-18T21:40:51.22
IV.MUCR.HHN. ML:2.2 0.0003800292 0.4352 AML other m 2021-12-18T21:40:51.95
IV.ECTS.HHE. ML:2.4 0.0011665 0.8 AML other m 2021-12-18T21:40:51.57
IV.SSY.HHE. ML:2.4 0.00078725715 1.0752 AML other m 2021-12-18T21:40:51.49
IV.SSY.HNE. ML:2.1 0.00032845650000000004 1.3568 AML other m 2021-12-18T21:40:52.92
IV.MUCR.HHE. ML:2.1 0.00030113655 2.176 AML other m 2021-12-18T21:40:52.79
IV.AIO.HHN. ML:1.9 0.0002413695 1.6128 AML other m 2021-12-18T21:40:52.31
IV.AIO.HHE. ML:2.1 0.00037906130000000003 0.832 AML other m 2021-12-18T21:40:53.18
IV.GALF.HNE. ML:2.0 0.000416 0.64 AML other m 2021-12-18T21:40:53.18
IV.GALF.HHE. ML:3.0 0.00396 0.76 AML other m 2021-12-18T21:40:53.19
IV.GALF.HNN. ML:2.1 0.0005064999999999999 0.7 AML other m 2021-12-18T21:40:53.61
IV.SSY.HHN. ML:2.7 0.0014631824999999999 1.4592 AML other m 2021-12-18T21:40:53.66
IV.EPOZ.HNN. ML:2.8 0.005 0.4 AML other m 2021-12-18T21:40:53.88
IV.GALF.HHN. ML:3.0 0.0034699999999999996 0.98 AML other m 2021-12-18T21:40:55.49
IV.RAFF.HHE. ML:2.0 0.00019804949999999998 2.2016 AML other m 2021-12-18T21:40:57.64
IV.HSRS.HHE. ML:2.3 0.00039150000000000003 0.86 AML other m 2021-12-18T21:40:57.30
IV.HVZN.HHE. ML:2.6 0.0010175000000000002 0.62 AML other m 2021-12-18T21:40:58.48
IV.MSFR.HHE. ML:2.2 0.000333 1.04 AML other m 2021-12-18T21:40:58.38
IV.RAFF.HHN. ML:1.9 0.00013069552000000002 0.5376 AML other m 2021-12-18T21:40:58.96
IV.HMDC.HHN. ML:2.1 0.0002314134 1.7536 AML other m 2021-12-18T21:40:58.09
IV.MPNC.HHN. ML:2.8 0.0010364999999999999 0.38 AML other m 2021-12-18T21:40:59.38
IV.HMDC.HHE. ML:2.1 0.0001906621 2.0736 AML other m 2021-12-18T21:40:58.50
IV.HMDC.HNE. ML:2.2 0.00023499614999999998 1.9584 AML other m 2021-12-18T21:40:58.56
IV.MPNC.HHE. ML:2.8 0.001195 0.44 AML other m 2021-12-18T21:41:00.50
IV.HMDC.HNN. ML:2.3 0.00030382955 4.992 AML other m 2021-12-18T21:41:00.58
IV.HSRS.HHN. ML:2.3 0.00043200000000000004 0.5 AML other m 2021-12-18T21:41:02.45
IV.HVZN.HHN. ML:2.5 0.0009274999999999999 0.74 AML other m 2021-12-18T21:41:02.29
IV.MSFR.HHN. ML:2.3 0.000459 0.44 AML other m 2021-12-18T21:41:03.29
IV.ISPIC.EHN. ML:2.4 0.0003050203 1.1392 AML other m 2021-12-18T21:41:04.52
IV.ISPIC.HNN. ML:2.4 0.0003326215 1.216 AML other m 2021-12-18T21:41:04.58
IV.CROCE.HHN. ML:2.1 0.00015596192000000002 1.6128 AML other m 2021-12-18T21:41:04.44
IV.CROCE.HHE. ML:2.2 0.00016455815 2.7136 AML other m 2021-12-18T21:41:04.44
IV.MCPD.HHN. ML:2.3 0.00037 0.58 AML other m 2021-12-18T21:41:04.51
IV.ISPIC.EHE. ML:2.5 0.00040300000000000004 1.26 AML other m 2021-12-18T21:41:05.70
IV.MSRU.HHE. ML:2.4 0.0003100296 0.768 AML other m 2021-12-18T21:41:05.59
IV.MSRU.HHN. ML:2.8 0.0007725 1.64 AML other m 2021-12-18T21:41:05.14
IV.MCPD.HHE. ML:2.3 0.0004025 0.9 AML other m 2021-12-18T21:41:10.59
IV.IFIL.HHE. ML:3.3 0.001744799 0.3456 AML other m 2021-12-18T21:41:13.31
IV.PLLN.EHE. ML:2.9 0.001032 0.68 AML other m 2021-12-18T21:41:13.19
IV.IACL.HHE. ML:2.8 0.00048714195 0.8704 AML other m 2021-12-18T21:41:13.70
IV.PLLN.EHN. ML:2.9 0.001008 1.38 AML other m 2021-12-18T21:41:15.20
IV.IACL.HHN. ML:2.9 0.000634 0.6 AML other m 2021-12-18T21:41:17.72
IV.JOPP.HHE. ML:2.5 0.000186 0.3 AML other m 2021-12-18T21:41:18.22
IV.IFIL.HHN. ML:3.0 0.000905 1.4 AML other m 2021-12-18T21:41:18.73
IV.JOPP.HHN. ML:2.6 0.000235 1.34 AML other m 2021-12-18T21:41:19.14
IV.PLAC.HHE. ML:2.6 0.000184 0.9 AML other m 2021-12-18T21:41:31.09
IV.PLAC.HHN. ML:2.6 0.0001875 0.6 AML other m 2021-12-18T21:41:32.60
IV.CAR1.HHE. ML:2.8 0.000154 0.48 AML other m 2021-12-18T21:41:35.24
IV.CAR1.HHN. ML:2.7 0.0001365 0.42 AML other m 2021-12-18T21:41:37.06
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