Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 07-12-2020 and time 14:00:05 (UTC) in region 7 km E Bronte (CT)

A magnitude ML 2.4 earthquake occured in region: 7 km E Bronte (CT), on

  • 07-12-2020 14:00:05 (UTC)
  • 07-12-2020 15:00:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7760, 14.9120 at 30 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
Bronte CT 7 19172 19172
Maletto CT 7 3920 23092
Randazzo CT 12 10900 33992
Maniace CT 13 3765 37757
Adrano CT 14 36122 73879
Biancavilla CT 15 24007 97886
Ragalna CT 16 3924 101810
Santa Domenica Vittoria ME 16 980 102790
Santa Maria di Licodia CT 18 7641 110431
Moio Alcantara ME 19 717 111148
Milo CT 19 1087 112235
Cesarò ME 19 2439 114674
Zafferana Etnea CT 19 9517 124191
Roccella Valdemone ME 20 666 124857

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Acireale (52622 inhabitants)
34 Km NW of Catania (314555 inhabitants)
73 Km SW of Messina (238439 inhabitants)
74 Km SW of Reggio di Calabria (183035 inhabitants)
81 Km E of Caltanissetta (63360 inhabitants)
86 Km NW of Siracusa (122291 inhabitants)
96 Km N of Ragusa (73313 inhabitants)
98 Km NE of Vittoria (63339 inhabitants)
98 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 2.4 2020-12-07
14:00:05		 37.7758 14.9117 30 2021-02-26
14:56:15		 Bollettino Sismico Italiano INGV 86261651
Reviewed
Rev200 		ML 2.5 2020-12-07
14:00:06		 37.78 14.89 17 2021-01-28
10:35:05		 Sala Operativa INGV_OE (Catania) 85266411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-07 14:00:05 ± 0.11
Latitude 37.7758 ± 0.0036
Longitude 14.9117 ± 0.0057
Depth (km) 30 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86261651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 507
Semi-minor axis of confidence ellipse (meter) 297
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 271
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) 59
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.05396
Epicentral distance of station farthest from the epicenter (degree) 0.83277
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.4
Num. used stations 31
Type of magnitude ML
Reference to an origin 86261651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-28 10:34:55

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 85266411
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-12-07 14:06:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HMDC.HHZ. 2020-12-07T14:00:33.20 0.3 undecidable manual S 187 91.3419 103 0.04 66
IV.HAVL.HHZ. 2020-12-07T14:00:33.70 0.3 undecidable manual S 168 92.4408 103 0.25 63
IV.SSY.HHZ. 2020-12-07T14:00:28.00 0.3 undecidable manual S 168 70.0743 108 0.32 64
IV.HAGA.HHZ. 2020-12-07T14:00:24.50 0.6 undecidable manual S 158 58.497 111 -0.28 45
IV.HLNI.HHZ. 2020-12-07T14:00:22.10 0.6 undecidable manual S 184 47.5191 116 0.01 48
IV.HAVL.HHZ. 2020-12-07T14:00:21.56 0.3 undecidable manual P 168 92.4408 103 -0.19 64
IV.HMDC.HHZ. 2020-12-07T14:00:21.43 0.3 undecidable manual P 187 91.3419 103 -0.15 64
IV.CAGR.HHZ. 2020-12-07T14:00:20.60 0.6 undecidable manual S 245 39.9267 121 0.28 46
IV.MSFR.HHZ. 2020-12-07T14:00:20.50 0.6 undecidable manual S 316 40.0266 121 0.16 47
IV.GALF.HHZ. 2020-12-07T14:00:18.60 0.6 undecidable manual S 257 31.1466 129 0.22 48
IV.MUCR.HHZ. 2020-12-07T14:00:18.40 0.6 undecidable manual S 354 29.8479 130 0.28 47
IV.SSY.HHZ. 2020-12-07T14:00:18.77 0.3 undecidable manual P 168 70.0743 108 0.35 64
IV.EPOZ.HNZ. 2020-12-07T14:00:17.50 0.6 undecidable manual S 115 26.8509 133 -0.03 50
IV.ECTS.HHZ. 2020-12-07T14:00:16.70 0.6 undecidable manual S 57 21.7671 140 0.1 49
IV.HAGA.HHZ. 2020-12-07T14:00:16.51 0.3 undecidable manual P 158 58.497 111 -0.23 67
IV.EMCN.HHZ. 2020-12-07T14:00:15.00 0.6 undecidable manual S 81 10.878 158 -0.07 51
IV.ECBD.HHZ. 2020-12-07T14:00:15.90 0.3 undecidable manual S 88 15.3735 150 0.29 71
IV.EPIT.HHZ. 2020-12-07T14:00:15.50 0.3 undecidable manual S 73 13.2756 153 0.15 74
IV.ESML.HHZ. 2020-12-07T14:00:15.90 0.6 undecidable manual S 189 17.7711 146 -0.05 50
IV.EPZF.HHZ. 2020-12-07T14:00:14.70 0.3 undecidable manual S 318 7.1928 165 -0.06 76
IV.CAGR.HHZ. 2020-12-07T14:00:14.59 0.3 undecidable manual P 245 39.9267 121 0.42 67
IV.HLNI.HHZ. 2020-12-07T14:00:14.96 0.3 undecidable manual P 184 47.5191 116 -0.23 69
IV.ECHR.HNZ. 2020-12-07T14:00:14.90 0.6 undecidable manual S 179 9.9789 160 -0.09 50
IV.EMSG.HHZ. 2020-12-07T14:00:14.80 0.6 undecidable manual S 34 5.994 167 0.12 50
IV.MSFR.HHZ. 2020-12-07T14:00:14.36 0.1 undecidable manual P 316 40.0266 121 0.18 94
IV.ESLN.HHZ. 2020-12-07T14:00:14.80 0.6 undecidable manual S 149 10.6782 158 -0.26 49
IV.GALF.HHZ. 2020-12-07T14:00:13.03 0.3 undecidable manual P 257 31.1466 129 -0.02 74
IV.EPOZ.HNZ. 2020-12-07T14:00:12.57 0.3 undecidable manual P 115 26.8509 133 0.01 74
IV.EFIU.HHE. 2020-12-07T14:00:12.91 1.0 undecidable manual P 87 26.2515 134 0.43 23
IV.MUCR.HHZ. 2020-12-07T14:00:12.96 0.1 undecidable manual P 354 29.8479 130 0.07 98
IV.ECTS.HHZ. 2020-12-07T14:00:12.03 0.1 undecidable manual P 57 21.7671 140 0.01 100
IV.EPIT.HHZ. 2020-12-07T14:00:11.48 0.3 undecidable manual P 73 13.2756 153 0.19 73
IV.ECPN.HHZ. 2020-12-07T14:00:11.06 0.3 undecidable manual P 119 7.4814 164 0.09 76
IV.EVRN.HNN. 2020-12-07T14:00:11.85 0.3 undecidable manual P 116 21.867 140 -0.17 73
IV.ESML.HHZ. 2020-12-07T14:00:11.64 0.3 undecidable manual P 189 17.7711 146 0 76
IV.ENIC.HHE. 2020-12-07T14:00:11.65 0.3 undecidable manual P 149 18.6702 144 -0.08 75
IV.EMCN.HHZ. 2020-12-07T14:00:11.16 0.3 undecidable manual P 81 10.878 158 0.03 76
IV.ECBD.HHZ. 2020-12-07T14:00:11.54 0.6 undecidable manual P 88 15.3735 150 0.1 50
IV.ESLN.HHZ. 2020-12-07T14:00:10.84 0.3 undecidable manual P 149 10.6782 158 -0.29 72
IV.ECHR.HNZ. 2020-12-07T14:00:10.85 0.6 undecidable manual P 179 9.9789 160 -0.23 49
IV.EMSG.HHZ. 2020-12-07T14:00:10.58 0.1 positive manual P 34 5.994 167 -0.34 96
IV.EPZF.HHZ. 2020-12-07T14:00:10.39 0.1 undecidable manual P 318 7.1928 165 -0.56 90
IV.ECNE.HHN. 2020-12-07T14:00:10.69 0.6 undecidable manual P 98 7.9809 163 -0.3 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESLN.HHN. ML:2.0 0.00045301755 0.6016 AML other m 2020-12-07T14:00:10.18
IV.EPZF.HHE. ML:2.6 0.001993808 0.4608 AML other m 2020-12-07T14:00:11.06
IV.EMCN.HNE. ML:2.1 0.00059925735 0.3776 AML other m 2020-12-07T14:00:11.38
IV.EMSG.HHN. ML:2.1 0.0007061781 0.2816 AML other m 2020-12-07T14:00:11.19
IV.EMCN.HHE. ML:2.1 0.0006461004000000001 0.3776 AML other m 2020-12-07T14:00:11.38
IV.EMCN.HNN. ML:2.1 0.0006694776499999999 0.3968 AML other m 2020-12-07T14:00:11.21
IV.EMCN.HHN. ML:2.1 0.0006226606 0.4032 AML other m 2020-12-07T14:00:11.21
IV.EPZF.HHN. ML:2.7 0.0026004525 0.3968 AML other m 2020-12-07T14:00:11.27
IV.EMSG.HHE. ML:2.1 0.00068928515 0.16 AML other m 2020-12-07T14:00:11.86
IV.ESLN.HHE. ML:2.0 0.000530415385 0.2176 AML other m 2020-12-07T14:00:13.23
IV.ESML.HHN. ML:2.2 0.0007173947 0.4032 AML other m 2020-12-07T14:00:14.85
IV.MUCR.HHN. ML:2.2 0.00051763845 0.4032 AML other m 2020-12-07T14:00:16.35
IV.ESML.HHE. ML:2.3 0.0008038040500000001 0.4352 AML other m 2020-12-07T14:00:16.60
IV.MUCR.HHE. ML:1.8 0.00019154945000000002 0.2816 AML other m 2020-12-07T14:00:17.31
IV.GALF.HNE. ML:2.2 0.00054113015 0.5888 AML other m 2020-12-07T14:00:19.87
IV.GALF.HHE. ML:3.2 0.005088685 0.5568 AML other m 2020-12-07T14:00:19.89
IV.GALF.HHN. ML:3.2 0.005820378 0.4608 AML other m 2020-12-07T14:00:20.39
IV.GALF.HNN. ML:2.3 0.0006368981 0.4672 AML other m 2020-12-07T14:00:20.39
IV.MSFR.HHN. ML:2.1 0.0003482798 0.3008 AML other m 2020-12-07T14:00:21.80
IV.CAGR.HHE. ML:2.3 0.0005205378 0.4416 AML other m 2020-12-07T14:00:22.83
IV.HLNI.HHE. ML:2.3 0.00053899045 0.1408 AML other m 2020-12-07T14:00:22.98
IV.HAGA.HHN. ML:2.5 0.0006090314000000001 0.3392 AML other m 2020-12-07T14:00:25.18
IV.SSY.HHE. ML:3.2 0.0021376 0.6592 AML other m 2020-12-07T14:00:27.96
IV.SSY.HHN. ML:3.6 0.0057059725 0.4608 AML other m 2020-12-07T14:00:29.83
IV.HAGA.HHE. ML:2.4 0.0004648386 0.416 AML other m 2020-12-07T14:00:30.46
IV.HMDC.HHN. ML:3.1 0.0014936034999999998 0.3584 AML other m 2020-12-07T14:00:33.89
IV.HMDC.HNN. ML:3.1 0.001435 1.6 AML other m 2020-12-07T14:00:34.90
IV.HMDC.HNE. ML:2.8 0.000756 0.52 AML other m 2020-12-07T14:00:34.44
IV.HMDC.HHE. ML:2.8 0.0007562865 0.4224 AML other m 2020-12-07T14:00:36.03
IV.HAVL.HHN. ML:3.0 0.00101675795 0.3008 AML other m 2020-12-07T14:00:35.91
IV.HAVL.HHE. ML:2.8 0.0006613723 0.3584 AML other m 2020-12-07T14:00:39.51
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