Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 20-09-2020 and time 06:41:57 (UTC) in region 11 km E Bronte (CT)

A magnitude ML 2.2 earthquake occured in region: 11 km E Bronte (CT), on

  • 20-09-2020 06:41:57 (UTC)
  • 20-09-2020 08:41:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7460, 14.9400 at 28 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 11 19172 19172
Maletto CT 11 3920 23092
Ragalna CT 13 3924 27016
Biancavilla CT 13 24007 51023
Adrano CT 13 36122 87145
Randazzo CT 15 10900 98045
Santa Maria di Licodia CT 15 7641 105686
Zafferana Etnea CT 16 9517 115203
Milo CT 16 1087 116290
Nicolosi CT 16 7463 123753
Belpasso CT 17 28108 151861
Maniace CT 18 3765 155626
Pedara CT 18 14102 169728
Sant'Alfio CT 18 1582 171310
Santa Venerina CT 19 8592 179902
Trecastagni CT 19 10910 190812
Paternò CT 19 48228 239040
Santa Domenica Vittoria ME 19 980 240020
Moio Alcantara ME 20 717 240737

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of Acireale (52622 inhabitants)
30 Km NW of Catania (314555 inhabitants)
74 Km SW of Messina (238439 inhabitants)
74 Km SW of Reggio di Calabria (183035 inhabitants)
82 Km E of Caltanissetta (63360 inhabitants)
82 Km NW of Siracusa (122291 inhabitants)
93 Km N of Ragusa (73313 inhabitants)
95 Km NE of Vittoria (63339 inhabitants)
97 Km NE of Gela (75827 inhabitants)
100 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 2.2 2020-09-20
06:41:57		 37.7455 14.94 28 2021-02-26
14:55:56		 Bollettino Sismico Italiano INGV 83197031
Reviewed
Rev200 		ML 2.2 2020-09-20
06:41:56		 37.749 14.903 23 2020-12-10
16:21:03		 Sala Operativa INGV_OE (Catania) 83048941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-20 06:41:57 ± 0.1
Latitude 37.7455 ± 0.0036
Longitude 14.9400 ± 0.0068
Depth (km) 28 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83197031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 567
Semi-minor axis of confidence ellipse (meter) 238
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 275
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.06295
Epicentral distance of station farthest from the epicenter (degree) 0.76173
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 83048941
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-09-20 07:04:42

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 83197031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-24 13:13:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2020-09-20T06:42:18.48 0.3 undecidable manual S 170 66.2781 107 0.55 62
IV.AGST.EHZ. 2020-09-20T06:42:16.49 0.3 undecidable manual S 155 59.7957 109 0.18 68
IV.HAGA.HHZ. 2020-09-20T06:42:15.41 0.6 undecidable manual S 160 54.501 111 0.44 44
IT.LNT.HGZ. 2020-09-20T06:42:14.16 0.6 undecidable manual S 174 51.0156 113 0.05 48
IV.GIB.HHZ. 2020-09-20T06:42:12.51 0.6 undecidable manual P 289 84.5487 103 0.67 38
IV.HLNI.HHZ. 2020-09-20T06:42:12.39 0.3 undecidable manual S 188 44.4222 117 -0.13 71
IV.PLLN.EHZ. 2020-09-20T06:42:11.09 0.3 undecidable manual P 292 74.9694 105 0.68 57
IV.RAFF.HHZ. 2020-09-20T06:42:11.03 0.1 undecidable manual P 221 77.1672 105 0.29 86
IV.CSLB.HHZ. 2020-09-20T06:42:11.29 0.3 undecidable manual P 286 80.1642 104 0.1 66
IV.AIO.HHZ. 2020-09-20T06:42:10.80 0.3 undecidable manual S 46 35.8419 123 0.28 70
IV.NOV.HHZ. 2020-09-20T06:42:10.66 0.3 undecidable manual S 29 35.742 123 0.17 71
IV.MSRU.HHZ. 2020-09-20T06:42:10.85 0.3 undecidable manual P 41 75.9684 105 0.28 64
IV.IVPL.HHZ. 2020-09-20T06:42:09.91 0.1 undecidable manual P 3 70.0743 106 0.22 88
IV.MUCR.HHZ. 2020-09-20T06:42:09.94 0.3 undecidable manual S 350 33.5442 125 -0.06 73
IV.SSY.HHZ. 2020-09-20T06:42:09.08 0.1 positive manual P 170 66.2781 107 -0.05 92
IV.AGST.EHZ. 2020-09-20T06:42:08.05 0.1 undecidable manual P 155 59.7957 109 -0.14 92
IV.HAGA.HHZ. 2020-09-20T06:42:07.28 0.3 undecidable manual P 160 54.501 111 -0.13 69
IV.MPNC.HHZ. 2020-09-20T06:42:07.96 0.1 negative manual P 39 57.2982 110 0.14 92
IV.ECTS.HHZ. 2020-09-20T06:42:07.11 0.6 undecidable manual S 46 21.9669 138 -0.56 44
IV.EPIT.HHN. 2020-09-20T06:42:06.50 0.6 undecidable manual S 54 12.5763 153 0.25 49
IV.EPZF.HHZ. 2020-09-20T06:42:06.24 0.3 undecidable manual S 320 11.3775 156 0.13 75
IV.ECHR.HHE. 2020-09-20T06:42:06.12 0.6 undecidable manual S 200 6.993 165 0.41 48
IV.ECBD.HHN. 2020-09-20T06:42:06.82 0.6 undecidable manual S 73 13.3755 152 0.47 47
IT.LNT.HGZ. 2020-09-20T06:42:06.70 0.3 undecidable manual P 174 51.0156 113 -0.22 69
IV.EMSG.HHZ. 2020-09-20T06:42:06.04 0.3 undecidable manual S 6 8.3805 162 0.22 74
IV.EMCN.HHZ. 2020-09-20T06:42:06.28 0.6 undecidable manual S 58 9.6792 159 0.34 48
IV.MSFR.HHZ. 2020-09-20T06:42:05.98 0.1 undecidable manual P 316 44.2224 117 0.02 96
IV.HLNI.HHZ. 2020-09-20T06:42:05.68 0.1 positive manual P 188 44.4222 117 -0.32 91
IV.MUCR.HHZ. 2020-09-20T06:42:04.12 0.1 positive manual P 350 33.5442 125 -0.43 91
IV.AIO.HHZ. 2020-09-20T06:42:04.95 0.1 undecidable manual P 46 35.8419 123 0.1 96
IV.NOV.HHZ. 2020-09-20T06:42:04.70 0.1 positive manual P 29 35.742 123 -0.13 96
IV.EPOZ.HHZ. 2020-09-20T06:42:03.69 0.3 undecidable manual P 110 23.2545 136 0.35 70
IV.EFIU.HHE. 2020-09-20T06:42:03.30 0.3 undecidable manual P 78 24.1536 135 -0.14 73
IV.ECTS.HHZ. 2020-09-20T06:42:02.76 0.3 undecidable manual P 46 21.9669 138 -0.44 69
IV.EMCN.HHZ. 2020-09-20T06:42:02.06 0.3 undecidable manual P 58 9.6792 159 -0.14 75
IV.ESML.HHZ. 2020-09-20T06:42:02.70 0.6 undecidable manual P 201 15.0738 149 0.13 50
IV.EPIT.HHN. 2020-09-20T06:42:02.26 0.1 undecidable manual P 54 12.5763 153 -0.12 100
IV.EVRN.HHZ. 2020-09-20T06:42:02.48 0.1 negative manual P 110 18.2706 143 -0.36 94
IV.ECBD.HHN. 2020-09-20T06:42:02.23 0.1 positive manual P 73 13.3755 152 -0.21 98
IV.EMSG.HHZ. 2020-09-20T06:42:01.68 0.1 positive manual P 6 8.3805 162 -0.45 94
IV.EPZF.HHZ. 2020-09-20T06:42:01.73 0.1 positive manual P 320 11.3775 156 -0.57 90
IV.ECHR.HHE. 2020-09-20T06:42:01.87 0.3 undecidable manual P 200 6.993 165 -0.2 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPOZ.HHE. ML:2.1 0.0005699165499999999 0.4416 AML other m 2020-09-20T06:42:11.93
IV.EMCN.HNE. ML:3.0 0.0047409485 0.56 AML other m 2020-09-20T06:42:06.50
IV.EMCN.HHE. ML:3.0 0.004756805500000001 0.56 AML other m 2020-09-20T06:42:06.50
IV.ESML.HHE. ML:2.4 0.001267 1.28 AML other m 2020-09-20T06:42:08.87
IV.ESML.HHN. ML:2.2 0.0007250949 0.24 AML other m 2020-09-20T06:42:10.47
IV.AIO.HHE. ML:2.2 0.0004304794 0.3424 AML other m 2020-09-20T06:42:11.19
IV.EPOZ.HHN. ML:2.2 0.00060685525 0.32 AML other m 2020-09-20T06:42:12.33
IV.HLNI.HHN. ML:2.0 0.0002650665 0.16 AML other m 2020-09-20T06:42:12.52
IV.AIO.HHN. ML:1.9 0.00025513405 0.4608 AML other m 2020-09-20T06:42:13.33
IV.MSFR.HHE. ML:1.5 0.00007915506999999999 0.2976 AML other m 2020-09-20T06:42:13.46
IV.HLNI.HHE. ML:2.1 0.00033682469999999997 0.2016 AML other m 2020-09-20T06:42:13.49
IV.MSFR.HHN. ML:1.5 0.00008537937499999999 0.2624 AML other m 2020-09-20T06:42:15.21
IV.HAGA.HHE. ML:2.0 0.0002077009 0.1184 AML other m 2020-09-20T06:42:16.17
IV.HAGA.HHN. ML:2.0 0.00021485510000000002 0.2016 AML other m 2020-09-20T06:42:16.18
IV.AGST.EHE. ML:2.4 0.0005152425499999999 0.1408 AML other m 2020-09-20T06:42:17.17
IV.AGST.EHN. ML:2.6 0.0006771549 0.1216 AML other m 2020-09-20T06:42:17.48
IV.MPNC.HHE. ML:2.2 0.00031554505 0.5376 AML other m 2020-09-20T06:42:17.50
IV.MPNC.HHN. ML:2.2 0.00030101855 0.3776 AML other m 2020-09-20T06:42:17.54
IV.IVPL.HHN. ML:2.3 0.00033539145000000003 0.4992 AML other m 2020-09-20T06:42:21.23
IV.IVPL.HHE. ML:2.4 0.00036465415 0.6208 AML other m 2020-09-20T06:42:21.11
IV.SSY.HHE. ML:2.8 0.00106473285 0.1184 AML other m 2020-09-20T06:42:21.58
IV.RAFF.HHN. ML:1.7 0.000068527265 0.2592 AML other m 2020-09-20T06:42:23.66
IV.RAFF.HHE. ML:1.9 0.00010855815 0.2816 AML other m 2020-09-20T06:42:23.68
IV.MSRU.HHN. ML:2.0 0.00014808804999999999 0.3424 AML other m 2020-09-20T06:42:26.30
IV.MSRU.HHE. ML:2.0 0.00014565719999999998 1.6992 AML other m 2020-09-20T06:42:28.05
IV.GIB.HHN. ML:2.3 0.00022427065 0.5408 AML other m 2020-09-20T06:42:28.89
IV.GIB.HHE. ML:2.3 0.00021745884999999998 0.56 AML other m 2020-09-20T06:42:29.99
IV.EMSG.HHN. ML:2.6 0.0020358265000000003 0.2208 AML other m 2020-09-20T06:42:06.07
IV.EMSG.HHE. ML:2.6 0.001966936 0.2784 AML other m 2020-09-20T06:42:06.57
IV.EPZF.HHN. ML:2.6 0.0021558260000000004 1.7024 AML other m 2020-09-20T06:42:06.01
IV.EPZF.HHE. ML:2.8 0.0029050720000000003 0.5216 AML other m 2020-09-20T06:42:06.75
IV.EMCN.HHN. ML:2.6 0.0021050585 0.32 AML other m 2020-09-20T06:42:06.65
IV.EPOZ.HNN. ML:1.8 0.00022518425 0.3296 AML other m 2020-09-20T06:42:12.33
IV.EPOZ.HNE. ML:1.7 0.0002035248 0.4416 AML other m 2020-09-20T06:42:11.93
IV.MUCR.HHN. ML:2.3 0.00064772435 0.3616 AML other m 2020-09-20T06:42:10.72
IV.MUCR.HHE. ML:2.0 0.00032165085000000006 0.3008 AML other m 2020-09-20T06:42:10.83
IV.NOV.HHN. ML:2.4 0.0007454747 0.3392 AML other m 2020-09-20T06:42:11.58
IV.NOV.HHE. ML:2.4 0.0008610537 0.32 AML other m 2020-09-20T06:42:14.77
IV.PLLN.EHN. ML:2.3 0.00026006849999999997 0.4992 AML other m 2020-09-20T06:42:26.23
IV.PLLN.EHE. ML:2.4 0.00035817095 1.3984 AML other m 2020-09-20T06:42:26.20
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