Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 18-10-2020 and time 21:53:38 (Italy) in region 5 km N Troina (EN)

A magnitude ML 2.3 earthquake occured in region: 5 km N Troina (EN), on

  • 18-10-2020 19:53:38 (UTC)
  • 18-10-2020 21:53:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8320, 14.5840 at 32 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Troina EN 5 9373 9373
Cerami EN 7 2006 11379
Capizzi ME 9 3176 14555
San Teodoro ME 10 1403 15958
Cesarò ME 11 2439 18397
Gagliano Castelferrato EN 14 3593 21990
Nicosia EN 19 13899 35889
Agira EN 20 8345 44234

Municipalities with at least 50000 inhabitants

An earthquake occurred to
57 Km W of Acireale (52622 inhabitants)
57 Km NW of Catania (314555 inhabitants)
59 Km NE of Caltanissetta (63360 inhabitants)
90 Km NE of Gela (75827 inhabitants)
94 Km W of Messina (238439 inhabitants)
98 Km W of Reggio di Calabria (183035 inhabitants)
98 Km E of Bagheria (55387 inhabitants)
98 Km N of Vittoria (63339 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 2.3 2020-10-18
19:53:38		 37.832 14.5838 32 2021-02-26
14:56:06		 Bollettino Sismico Italiano INGV 84771401
Reviewed
Rev100 		ML 2.4 2020-10-18
19:53:37		 37.8397 14.5922 35 2020-10-18
20:01:24		 Sala Sismica INGV-Roma 83892591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-18 19:53:38 ± 0.14
Latitude 37.8320 ± 0.0072
Longitude 14.5838 ± 0.0102
Depth (km) 32 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84771401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 903
Semi-minor axis of confidence ellipse (meter) 150
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 46
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.90656
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 84771401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-16 12:35:10

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 83892591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-18 20:01:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IST3.HHZ. 2020-10-18T19:54:13.63 3.0 undecidable manual Sn 0.12 0
XK.ALB1.HHZ. 2020-10-18T19:54:10.17 3.0 positive manual Pn -0.06 0
IV.CAR1.HHZ. 2020-10-18T19:54:09.36 0.3 undecidable manual P 41 211.6326 54 0.27 42
IV.RAFF.HHZ. 2020-10-18T19:54:01.50 0.3 undecidable manual S 196 70.374 110 1.27 48
IV.ECTS.HHZ. 2020-10-18T19:54:00.19 3.0 undecidable manual S 1.31 0
IV.HCRL.HHZ. 2020-10-18T19:54:00.44 0.3 undecidable manual S 147 72.5718 109 -0.34 67
IV.JOPP.HHZ. 2020-10-18T19:54:00.64 0.3 undecidable manual P 52 142.3464 54 0.17 60
MN.CEL.HHZ. 2020-10-18T19:53:58.73 0.3 undecidable manual P 67 123.8871 54 0.55 56
IV.HLNI.HHZ. 2020-10-18T19:53:57.51 0.3 undecidable manual S 155 59.2962 113 0.03 74
IV.HAVL.HHZ. 2020-10-18T19:53:55.23 0.3 undecidable manual P 154 107.8143 54 -0.94 52
IV.CSLB.HHZ. 2020-10-18T19:53:55.05 0.3 undecidable manual S 284 47.5191 119 0.39 70
IV.MSRU.HHZ. 2020-10-18T19:53:54.47 0.3 undecidable manual P 59 93.9393 104 0.15 67
IV.PETRA.HHZ. 2020-10-18T19:53:53.49 0.6 undecidable manual S 270 41.1255 123 0.31 48
IV.SCIAR.HHZ. 2020-10-18T19:53:52.40 0.3 undecidable manual P 280 74.0703 108 1.01 52
IV.MPNC.HHZ. 2020-10-18T19:53:52.03 0.3 undecidable manual P 62 75.7686 108 0.4 66
IV.ESML.HHZ. 2020-10-18T19:53:52.23 0.6 undecidable manual S 132 35.1426 128 0.33 49
IV.SSY.HHZ. 2020-10-18T19:53:52.30 0.3 undecidable manual P 150 86.3469 106 -0.89 54
IV.EPZF.HHZ. 2020-10-18T19:53:51.02 0.3 undecidable manual S 92 23.9538 140 1.29 51
IV.IFIL.HHZ. 2020-10-18T19:53:51.68 0.3 undecidable manual P 359 81.252 107 -0.76 59
IV.MUCR.HHZ. 2020-10-18T19:53:51.44 0.3 undecidable manual S 47 34.5432 128 -0.32 73
IV.HAGA.HHZ. 2020-10-18T19:53:51.18 0.3 undecidable manual P 140 78.7656 107 -0.89 55
IV.IACL.HHZ. 2020-10-18T19:53:51.70 0.3 undecidable manual P 346 80.2641 107 -0.59 63
IV.IVPL.HHZ. 2020-10-18T19:53:50.79 0.3 undecidable manual P 30 69.5748 110 0.06 72
IV.RAFF.HHZ. 2020-10-18T19:53:50.68 0.1 negative manual P 196 70.374 110 -0.17 94
IV.CPTP.HHZ. 2020-10-18T19:53:50.11 0.3 undecidable manual P 218 59.8956 113 0.77 60
IV.HCRL.HHZ. 2020-10-18T19:53:50.33 0.3 undecidable manual P 147 72.5718 109 -0.83 57
IV.GALF.HHZ. 2020-10-18T19:53:48.07 0.3 undecidable manual S 186 13.5753 155 -0.15 77
IV.HLNI.HHZ. 2020-10-18T19:53:48.55 0.3 undecidable manual P 155 59.2962 113 -0.71 61
IV.MSFR.HHZ. 2020-10-18T19:53:48.96 0.6 undecidable manual S 2 22.3554 142 -0.51 47
IV.ENIC.HHZ. 2020-10-18T19:53:47.57 0.3 undecidable manual P 120 44.4222 121 0.36 71
IV.CSLB.HHZ. 2020-10-18T19:53:47.14 0.1 undecidable manual P 284 47.5191 119 -0.49 92
IV.ESML.HHZ. 2020-10-18T19:53:46.36 0.3 undecidable manual P 132 35.1426 128 0.33 73
IV.ECHR.HHE. 2020-10-18T19:53:46.61 0.6 undecidable manual P 119 33.0447 130 0.83 41
IV.PLLN.EHZ. 2020-10-18T19:53:46.69 0.3 undecidable manual P 295 42.5241 122 -0.27 73
IV.EMSG.HHZ. 2020-10-18T19:53:46.54 0.3 undecidable manual P 92 32.0457 131 0.87 61
IV.PETRA.HHZ. 2020-10-18T19:53:46.78 0.3 undecidable manual P 270 41.1255 123 0 77
IV.EPZF.HHZ. 2020-10-18T19:53:45.27 0.1 positive manual P 92 23.9538 140 0.49 95
IV.MUCR.HHZ. 2020-10-18T19:53:45.74 0.1 positive manual P 47 34.5432 128 -0.21 100
IV.MSFR.HHZ. 2020-10-18T19:53:44.34 0.1 undecidable manual P 2 22.3554 142 -0.29 100
IV.CAGR.HHE. 2020-10-18T19:53:44.99 0.3 undecidable manual P 198 24.4533 139 0.16 77
IV.GALF.HHZ. 2020-10-18T19:53:43.46 0.1 negative manual P 186 13.5753 155 -0.45 97
IV.ESLN.HHZ. 2020-10-18T19:53:40.89 0.6 undecidable manual P 37.5291 -5.44 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HNE. ML:2.1 0.0005 1.42 AML other m 2020-10-18T19:53:48.02
IV.GALF.HHE. ML:3.0 0.00437 1.44 AML other m 2020-10-18T19:53:48.01
IV.GALF.HNN. ML:1.8 0.000305 1.46 AML other m 2020-10-18T19:53:48.75
IV.GALF.HHN. ML:2.6 0.0016400000000000002 0.7 AML other m 2020-10-18T19:53:50.42
IV.EPZF.HHN. ML:2.4 0.000818 0.6 AML other m 2020-10-18T19:53:52.55
IV.EPZF.HHE. ML:2.3 0.000689 0.52 AML other m 2020-10-18T19:53:53.22
IV.MUCR.HHE. ML:2.3 0.0005505 0.9 AML other m 2020-10-18T19:53:54.53
IV.MUCR.HHN. ML:2.3 0.0006445 0.56 AML other m 2020-10-18T19:53:55.49
IV.ESML.HHE. ML:2.3 0.0005480000000000001 0.62 AML other m 2020-10-18T19:53:55.46
IV.ECTS.HHN. ML:2.3 0.0004525 0.98 AML other m 2020-10-18T19:53:57.80
IV.PETRA.HHN. ML:2.0 0.00028149999999999996 0.42 AML other m 2020-10-18T19:53:58.69
IV.ECTS.HHE. ML:2.1 0.00028700000000000004 1.28 AML other m 2020-10-18T19:53:58.07
IV.PETRA.HHE. ML:2.3 0.0004825 0.76 AML other m 2020-10-18T19:53:58.53
IV.HLNI.HHE. ML:2.2 0.00026250000000000004 0.38 AML other m 2020-10-18T19:53:59.62
IV.HLNI.HHN. ML:2.3 0.000365 0.24 AML other m 2020-10-18T19:53:59.91
IV.EMSG.HHE. ML:2.6 0.0012900000000000001 1.6 AML other m 2020-10-18T19:54:00.97
IV.HCRL.HHE. ML:2.4 0.0003615 0.4 AML other m 2020-10-18T19:54:01.41
IV.ESML.HHN. ML:2.2 0.000424 0.9 AML other m 2020-10-18T19:54:01.68
IV.RAFF.HHE. ML:2.2 0.00023099999999999998 1.28 AML other m 2020-10-18T19:54:02.21
IV.RAFF.HHN. ML:2.0 0.00014450000000000002 1.08 AML other m 2020-10-18T19:54:02.23
IV.HAGA.HHN. ML:2.7 0.0007435 1.34 AML other m 2020-10-18T19:54:02.68
IV.HAGA.HHE. ML:2.7 0.0006185 0.38 AML other m 2020-10-18T19:54:02.71
IV.HCRL.HHN. ML:2.2 0.000206 0.4 AML other m 2020-10-18T19:54:03.37
IV.IACL.HHE. ML:2.2 0.000195 0.34 AML other m 2020-10-18T19:54:03.82
IV.IVPL.HHN. ML:2.5 0.0005064999999999999 0.42 AML other m 2020-10-18T19:54:04.35
IV.EMSG.HHN. ML:2.5 0.001095 0.56 AML other m 2020-10-18T19:54:04.25
IV.IVPL.HHE. ML:2.4 0.0003845 0.6 AML other m 2020-10-18T19:54:04.89
IV.IACL.HHN. ML:2.2 0.000201 0.74 AML other m 2020-10-18T19:54:05.41
IV.MPNC.HHN. ML:2.3 0.0002855 1.56 AML other m 2020-10-18T19:54:07.90
IV.IFIL.HHN. ML:2.5 0.0003655 1.58 AML other m 2020-10-18T19:54:07.16
IV.IFIL.HHE. ML:2.8 0.0008265 1.66 AML other m 2020-10-18T19:54:07.16
IV.MPNC.HHE. ML:2.4 0.00034950000000000004 0.44 AML other m 2020-10-18T19:54:07.36
IV.ENIC.HHN. ML:2.5 0.0007435 0.6 AML other m 2020-10-18T19:54:09.33
IV.MSRU.HHN. ML:2.2 0.00017099999999999998 1.04 AML other m 2020-10-18T19:54:09.87
IV.ENIC.HHE. ML:2.4 0.000624 0.4 AML other m 2020-10-18T19:54:10.40
IV.HAVL.HHN. ML:2.5 0.00028649999999999997 0.36 AML other m 2020-10-18T19:54:10.25
IV.HAVL.HHE. ML:2.5 0.000242 0.52 AML other m 2020-10-18T19:54:10.35
IV.MSRU.HHE. ML:2.4 0.000226 1.4 AML other m 2020-10-18T19:54:11.73
MN.CEL.HHN. ML:2.0 0.000060650000000000004 0.96 AML other m 2020-10-18T19:54:16.45
MN.CEL.HHE. ML:2.0 0.00006675000000000001 1.52 AML other m 2020-10-18T19:54:18.21
IV.CAR1.HHN. ML:2.4 0.0000577 0.7 AML other m 2020-10-18T19:54:34.38
IV.CAR1.HHE. ML:2.4 0.000059999999999999995 0.46 AML other m 2020-10-18T19:54:37.21
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