Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 12-12-2020 and time 17:22:24 (Italy) in region 10 km N Ragalna (CT)

A magnitude ML 2.5 earthquake occured in region: 10 km N Ragalna (CT), on

  • 12-12-2020 16:22:24 (UTC)
  • 12-12-2020 17:22:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7220, 14.9680 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
Ragalna CT 10 3924 3924
Zafferana Etnea CT 12 9517 13441
Biancavilla CT 12 24007 37448
Nicolosi CT 13 7463 44911
Milo CT 13 1087 45998
Santa Maria di Licodia CT 14 7641 53639
Adrano CT 14 36122 89761
Bronte CT 14 19172 108933
Pedara CT 14 14102 123035
Belpasso CT 15 28108 151143
Maletto CT 15 3920 155063
Trecastagni CT 15 10910 165973
Santa Venerina CT 16 8592 174565
Sant'Alfio CT 16 1582 176147
Viagrande CT 17 8563 184710
Paternò CT 17 48228 232938
San Pietro Clarenza CT 17 7743 240681
Camporotondo Etneo CT 17 5023 245704
Randazzo CT 18 10900 256604
Mascalucia CT 18 31958 288562
Aci Bonaccorsi CT 19 3524 292086
Tremestieri Etneo CT 19 20589 312675
Aci Sant'Antonio CT 19 17984 330659
Giarre CT 19 27659 358318
San Giovanni la Punta CT 20 23060 381378
Gravina di Catania CT 20 25838 407216

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Acireale (52622 inhabitants)
27 Km NW of Catania (314555 inhabitants)
73 Km SW of Reggio di Calabria (183035 inhabitants)
74 Km SW of Messina (238439 inhabitants)
79 Km NW of Siracusa (122291 inhabitants)
84 Km E of Caltanissetta (63360 inhabitants)
91 Km N of Ragusa (73313 inhabitants)
94 Km NE of Vittoria (63339 inhabitants)
97 Km NE of Gela (75827 inhabitants)
98 Km N of Modica (54633 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 2020-12-12
16:22:24		 37.7223 14.968 8 2021-02-26
14:56:19		 Bollettino Sismico Italiano INGV 87176781
Reviewed
Rev200 		ML 2.4 2020-12-12
16:22:23		 37.73 14.957 6 2021-02-22
15:52:44		 Sala Operativa INGV_OE (Catania) 85381821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-12 16:22:24 ± 0.07
Latitude 37.7223 ± 0.0045
Longitude 14.9680 ± 0.0068
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 87176781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 551
Semi-minor axis of confidence ellipse (meter) 471
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 108
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 45
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.02968
Epicentral distance of station farthest from the epicenter (degree) 1.36607
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 87176781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-22 15:52:29

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 85381821
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-12-12 16:38:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2020-12-12T16:22:51.37 0.6 undecidable manual S 171 85.7475 50 0.76 36
IV.PLAC.HHZ. 2020-12-12T16:22:50.58 0.3 undecidable manual P 57 151.6371 50 0.8 45
IV.JOPP.HHZ. 2020-12-12T16:22:46.00 0.6 undecidable manual P 39 126.5733 50 0.07 40
IV.SCIAR.HHZ. 2020-12-12T16:22:44.55 0.3 undecidable manual P 283 109.5126 50 1.26 40
MN.CEL.HHZ. 2020-12-12T16:22:42.23 0.6 undecidable manual P 53 100.5216 50 0.32 40
IV.IACL.HHZ. 2020-12-12T16:22:42.40 0.6 undecidable manual P 329 104.6175 50 -0.14 41
IV.IFIL.HHZ. 2020-12-12T16:22:41.71 0.6 undecidable manual P 340 99.4227 50 -0.03 42
IV.HAGA.HHZ. 2020-12-12T16:22:41.44 0.6 undecidable manual S 161 51.2154 50 0.03 46
IV.GIB.HHZ. 2020-12-12T16:22:40.88 0.6 undecidable manual P 290 87.6456 50 0.95 33
IV.HAVL.HHZ. 2020-12-12T16:22:39.19 0.1 undecidable manual P 171 85.7475 50 -0.43 80
IV.CSLB.HHZ. 2020-12-12T16:22:39.53 0.3 undecidable manual P 287 83.25 50 0.29 62
IV.MSRU.HHZ. 2020-12-12T16:22:38.27 0.3 undecidable manual P 38 76.4679 50 0.08 66
IV.PETRA.HHZ. 2020-12-12T16:22:38.70 0.6 undecidable manual P 280 75.7686 50 0.6 39
IV.RAFF.HHZ. 2020-12-12T16:22:38.45 0.3 undecidable manual P 224 76.9674 50 0.18 64
IV.GALF.HHZ. 2020-12-12T16:22:37.88 0.6 undecidable manual S 268 35.2425 50 0.73 39
IV.MPNC.HHZ. 2020-12-12T16:22:35.11 0.3 undecidable manual P 35 57.8976 50 -0.22 66
IV.EPOZ.HHZ. 2020-12-12T16:22:33.62 0.6 undecidable manual S 106 20.1687 112 1.48 28
IV.HAGA.HHZ. 2020-12-12T16:22:33.86 0.3 undecidable manual P 161 51.2154 50 -0.45 64
IV.HLNI.HHZ. 2020-12-12T16:22:32.22 0.3 undecidable manual P 192 42.3243 50 -0.72 59
IV.ECTS.HHZ. 2020-12-12T16:22:32.23 0.6 undecidable manual S 37 22.2555 110 -0.58 43
IV.MUCR.HHZ. 2020-12-12T16:22:31.28 0.1 undecidable manual P 347 36.5412 50 -0.76 78
IV.AIO.HHZ. 2020-12-12T16:22:31.58 0.6 undecidable manual P 40 36.0417 50 -0.4 44
IV.GALF.HHZ. 2020-12-12T16:22:31.73 0.1 undecidable manual P 268 35.2425 50 -0.12 94
IV.EVRN.HHZ. 2020-12-12T16:22:30.57 0.6 undecidable manual S 104 15.1737 118 0 50
IV.EMSG.HHZ. 2020-12-12T16:22:30.16 0.6 undecidable manual S 352 11.0778 126 0.81 40
IV.EPZF.HHZ. 2020-12-12T16:22:30.84 0.6 undecidable manual S 319 14.874 118 0.35 46
IV.EPOZ.HHZ. 2020-12-12T16:22:29.33 0.1 undecidable manual P 106 20.1687 112 0.37 91
IV.EMCN.HHZ. 2020-12-12T16:22:29.05 0.6 undecidable manual S 37 9.5793 130 0.1 49
IV.EFIU.HHZ. 2020-12-12T16:22:29.59 0.1 undecidable manual P 71 22.5552 110 0.19 95
IV.ESML.HHZ. 2020-12-12T16:22:29.82 0.6 undecidable manual S 214 13.9749 120 -0.38 46
IV.ECHR.HNZ. 2020-12-12T16:22:28.69 0.6 undecidable manual S 230 6.2937 142 0.54 45
IV.ECNE.HHZ. 2020-12-12T16:22:28.58 0.6 undecidable manual S 32 5.5944 145 0.56 44
IV.ECTS.HHZ. 2020-12-12T16:22:28.85 0.3 undecidable manual P 37 22.2555 110 -0.49 67
IV.ECBD.HHZ. 2020-12-12T16:22:27.37 0.1 undecidable manual P 58 12.1767 123 -0.17 97
IV.EPZF.HHZ. 2020-12-12T16:22:27.42 0.1 positive manual P 319 14.874 118 -0.58 87
IV.ESLN.HHZ. 2020-12-12T16:22:27.80 0.3 undecidable manual S 170 3.2967 158 0.17 74
IV.ESML.HHZ. 2020-12-12T16:22:27.67 0.1 positive manual P 214 13.9749 120 -0.16 96
IV.EPIT.HHZ. 2020-12-12T16:22:27.59 0.1 undecidable manual P 38 12.5763 123 -0.01 100
IV.EVRN.HHZ. 2020-12-12T16:22:27.98 0.1 undecidable manual P 104 15.1737 118 -0.07 98
IV.ENIC.HHZ. 2020-12-12T16:22:27.35 0.1 undecidable manual P 155 11.1777 126 -0.01 100
IV.EMSG.HHZ. 2020-12-12T16:22:27.13 0.1 positive manual P 352 11.0778 126 -0.22 96
IV.EMCN.HHZ. 2020-12-12T16:22:26.86 0.3 undecidable manual P 37 9.5793 130 -0.25 72
IV.ESLN.HHZ. 2020-12-12T16:22:26.18 0.1 undecidable manual P 170 3.2967 158 -0.17 98
IV.ECHR.HNZ. 2020-12-12T16:22:26.25 0.1 undecidable manual P 230 6.2937 142 -0.41 93
IV.ECNE.HHZ. 2020-12-12T16:22:26.88 0.3 undecidable manual P 32 5.5944 145 0.3 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHN. ML:3.1 0.016150804999999997 0.32 AML other m 2020-12-12T16:22:30.31
IV.EPZF.HHE. ML:2.9 0.0086325355 0.32 AML other m 2020-12-12T16:22:31.90
IV.EVRN.HHN. ML:2.6 0.0038654279999999997 0.2048 AML other m 2020-12-12T16:22:32.66
IV.EVRN.HNE. ML:2.6 0.00451 1.84 AML other m 2020-12-12T16:22:34.03
IV.EVRN.HHE. ML:2.7 0.005015 1.84 AML other m 2020-12-12T16:22:34.04
IV.EMCN.HNN. ML:2.6 0.006510717 0.192 AML other m 2020-12-12T16:22:34.42
IV.ECTS.HHN. ML:2.4 0.0019857885 0.32 AML other m 2020-12-12T16:22:34.34
IV.EMCN.HHN. ML:2.6 0.0066723584999999995 0.1792 AML other m 2020-12-12T16:22:34.43
IV.EMCN.HNE. ML:2.8 0.0099537485 0.4992 AML other m 2020-12-12T16:22:34.60
IV.EMCN.HHE. ML:2.8 0.0097178265 0.4992 AML other m 2020-12-12T16:22:34.60
IV.EPOZ.HHE. ML:2.6 0.0032593009999999996 0.4224 AML other m 2020-12-12T16:22:35.37
IV.ECTS.HHE. ML:2.7 0.0034750000000000002 0.28 AML other m 2020-12-12T16:22:35.43
IV.EPOZ.HHN. ML:2.5 0.002691586 0.2944 AML other m 2020-12-12T16:22:35.39
IV.EMSG.HHE. ML:3.1 0.016056805 0.32 AML other m 2020-12-12T16:22:36.39
IV.EPZF.HHN. ML:3.1 0.01343008 0.32 AML other m 2020-12-12T16:22:36.35
IV.EVRN.HNN. ML:2.6 0.003938428 0.448 AML other m 2020-12-12T16:22:37.90
IV.AIO.HHE. ML:2.3 0.0007869999999999999 1.04 AML other m 2020-12-12T16:22:38.25
IV.AIO.HHN. ML:2.4 0.0009764999999999999 0.32 AML other m 2020-12-12T16:22:39.57
IV.GALF.HNN. ML:2.0 0.00045779589999999997 5.5424 AML other m 2020-12-12T16:22:43.16
IV.GALF.HHE. ML:2.9 0.0029477655 0.3456 AML other m 2020-12-12T16:22:40.54
IV.HLNI.HHE. ML:2.2 0.00048584679999999996 0.32 AML other m 2020-12-12T16:22:40.90
IV.HAGA.HHN. ML:2.0 0.0002456169 0.4992 AML other m 2020-12-12T16:22:47.15
IV.RAFF.HHE. ML:2.4 0.0003752337 0.384 AML other m 2020-12-12T16:22:52.62
IV.HAGA.HHE. ML:2.0 0.000277 1.64 AML other m 2020-12-12T16:22:52.87
IV.HAVL.HHN. ML:3.1 0.00163 1.76 AML other m 2020-12-12T16:22:52.95
IV.HAVL.HHE. ML:2.9 0.0009750000000000001 1.8 AML other m 2020-12-12T16:22:52.96
IV.RAFF.HHN. ML:2.4 0.0003605 1.58 AML other m 2020-12-12T16:22:54.88
IV.MSRU.HHE. ML:2.3 0.0002945 0.44 AML other m 2020-12-12T16:22:56.13
IV.MSRU.HHN. ML:2.2 0.00021223665000000004 0.4992 AML other m 2020-12-12T16:22:56.49
IV.GIB.HHN. ML:2.7 0.0005880000000000001 0.56 AML other m 2020-12-12T16:22:58.44
IV.CSLB.HHE. ML:1.9 0.00009366835499999999 0.5888 AML other m 2020-12-12T16:22:58.21
IV.IACL.HHN. ML:2.5 0.0003119765 0.4736 AML other m 2020-12-12T16:23:00.49
IV.CSLB.HHN. ML:2.0 0.00013114961 0.4608 AML other m 2020-12-12T16:23:00.54
IV.IACL.HHE. ML:2.7 0.000535 0.44 AML other m 2020-12-12T16:23:00.98
IV.PETRA.HHN. ML:2.3 0.0003155 0.92 AML other m 2020-12-12T16:23:01.64
IV.GIB.HHE. ML:2.6 0.00045075445000000003 0.5376 AML other m 2020-12-12T16:23:01.54
IV.PETRA.HHE. ML:2.3 0.00032257925 0.5248 AML other m 2020-12-12T16:23:01.68
MN.CEL.HHE. ML:2.0 0.00010705 0.52 AML other m 2020-12-12T16:23:02.89
IV.IFIL.HHE. ML:3.2 0.0014652419999999998 0.3328 AML other m 2020-12-12T16:23:03.64
MN.CEL.HNE. ML:2.0 0.00011167754499999999 0.4992 AML other m 2020-12-12T16:23:03.97
IV.SCIAR.HNN. ML:2.4 0.00021495535 0.6784 AML other m 2020-12-12T16:23:04.47
IV.IFIL.HHN. ML:2.8 0.0006285 0.48 AML other m 2020-12-12T16:23:04.53
IV.SCIAR.HHE. ML:2.3 0.000175 0.58 AML other m 2020-12-12T16:23:04.69
IV.JOPP.HHN. ML:2.1 0.000094658575 0.4352 AML other m 2020-12-12T16:23:06.30
MN.CEL.HNN. ML:2.1 0.00013246255 0.7808 AML other m 2020-12-12T16:23:06.82
MN.CEL.HHN. ML:2.1 0.00012525 1.16 AML other m 2020-12-12T16:23:07.81
IV.SCIAR.HHN. ML:2.4 0.000214 0.46 AML other m 2020-12-12T16:23:07.22
IV.SCIAR.HNE. ML:2.5 0.00027285945 0.8576 AML other m 2020-12-12T16:23:10.46
IV.JOPP.HHE. ML:2.1 0.0000896 1.28 AML other m 2020-12-12T16:23:11.21
IV.PLAC.HHE. ML:2.1 0.0000674 1.5 AML other m 2020-12-12T16:23:13.96
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