Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 17-10-2020 and time 06:06:16 (UTC) in region 6 km NW Troina (EN)

A magnitude ML 2.3 earthquake occured in region: 6 km NW Troina (EN), on

  • 17-10-2020 06:06:16 (UTC)
  • 17-10-2020 08:06:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8360, 14.5730 at 34 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
Troina EN 6 9373 9373
Cerami EN 6 2006 11379
Capizzi ME 8 3176 14555
San Teodoro ME 11 1403 15958
Cesarò ME 12 2439 18397
Gagliano Castelferrato EN 14 3593 21990
Nicosia EN 18 13899 35889
San Fratello ME 20 3707 39596

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km W of Acireale (52622 inhabitants)
58 Km NW of Catania (314555 inhabitants)
59 Km NE of Caltanissetta (63360 inhabitants)
90 Km NE of Gela (75827 inhabitants)
95 Km W of Messina (238439 inhabitants)
97 Km E of Bagheria (55387 inhabitants)
99 Km N of Vittoria (63339 inhabitants)
99 Km W of Reggio di Calabria (183035 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 2020-10-17
06:06:16		 37.836 14.5732 34 2021-02-26
14:56:01		 Bollettino Sismico Italiano INGV 84157041
Reviewed
Rev100 		ML 2.3 2020-10-17
06:06:17		 37.8303 14.5767 32 2020-10-17
06:17:33		 Sala Sismica INGV-Roma 83837381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-17 06:06:16 ± 0.11
Latitude 37.8360 ± 0.0072
Longitude 14.5732 ± 0.0091
Depth (km) 34 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84157041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 786
Semi-minor axis of confidence ellipse (meter) 610
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 33
Circular confidence region, given by single value of horizontal uncertainty (meter) 790.0
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 39
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.19070
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 43
Type of magnitude ML
Reference to an origin 84157041
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-26 14:09:45

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 83837381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-17 06:17:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2020-10-17T06:06:48.30 0.6 undecidable manual S 153 108.6135 54 0.34 42
IV.SSY.HHZ. 2020-10-17T06:06:43.86 0.3 undecidable manual S 149 87.1461 54 0.51 62
IV.HAGA.HHZ. 2020-10-17T06:06:41.17 0.6 undecidable manual S 140 79.7646 109 -0.35 44
IV.SCIAR.HHZ. 2020-10-17T06:06:40.23 0.3 undecidable manual S 279 73.0713 111 0.38 66
IV.HCRL.HHZ. 2020-10-17T06:06:39.46 0.3 undecidable manual S 146 73.4709 111 -0.48 65
IV.RAFF.HHZ. 2020-10-17T06:06:39.50 0.1 undecidable manual S 195 70.5738 111 0.28 91
IV.SOI.EHZ. 2020-10-17T06:06:38.56 0.6 undecidable manual P 78 132.1677 54 0.86 33
IV.HLNI.HHZ. 2020-10-17T06:06:37.00 0.6 undecidable manual S 154 60.0954 115 0.33 47
MN.CEL.HHZ. 2020-10-17T06:06:37.24 0.3 undecidable manual P 67 124.5864 54 0.48 59
IV.GMB.BHZ. 2020-10-17T06:06:35.28 3.0 undecidable manual P -0.87 0
IV.HAVL.HHZ. 2020-10-17T06:06:34.37 0.3 undecidable manual P 153 108.6135 54 -0.4 63
IV.PLLN.EHZ. 2020-10-17T06:06:32.52 0.3 undecidable manual S 295 41.4252 126 0.17 74
IV.PETRA.HHZ. 2020-10-17T06:06:31.53 0.6 undecidable manual S 270 40.1265 126 -0.54 46
IV.SSY.HHZ. 2020-10-17T06:06:31.39 0.3 undecidable manual P 149 87.1461 54 -0.71 60
IV.HAGA.HHZ. 2020-10-17T06:06:30.20 0.3 undecidable manual P 140 79.7646 109 -0.85 56
IV.MUCR.HHZ. 2020-10-17T06:06:30.74 0.6 undecidable manual S 49 34.9428 131 -0.24 49
IV.IFIL.HHZ. 2020-10-17T06:06:30.80 0.6 undecidable manual P 0 80.7636 109 -0.41 44
IV.SCIAR.HHZ. 2020-10-17T06:06:30.54 0.6 positive manual P 279 73.0713 111 0.46 44
IV.IVPL.HHZ. 2020-10-17T06:06:30.13 0.3 undecidable manual P 31 69.6747 112 0.53 66
IV.IACL.HHZ. 2020-10-17T06:06:30.46 0.3 undecidable manual P 346 79.6647 109 -0.58 63
IV.MPNC.HHZ. 2020-10-17T06:06:30.78 0.1 undecidable manual P 63 76.368 110 0.22 93
IV.HCRL.HHZ. 2020-10-17T06:06:29.13 0.3 undecidable manual P 146 73.4709 111 -1.01 53
IV.RAFF.HHZ. 2020-10-17T06:06:29.56 0.3 undecidable manual P 195 70.5738 111 -0.16 71
IV.EPZF.HHZ. 2020-10-17T06:06:29.86 0.6 undecidable manual S 93 24.9528 141 0.75 45
IV.GALF.HHZ. 2020-10-17T06:06:28.22 0.1 undecidable manual S 182 13.875 156 0.65 93
IV.MSFR.HHZ. 2020-10-17T06:06:28.17 0.6 undecidable manual S 4 22.0668 145 -0.48 47
IV.HLNI.HHZ. 2020-10-17T06:06:27.77 0.3 undecidable manual P 154 60.0954 115 -0.48 67
IV.CSLB.HHZ. 2020-10-17T06:06:26.10 0.3 undecidable manual P 284 46.5201 122 -0.3 72
MN.VAE.HHE. 2020-10-17T06:06:26.20 0.3 undecidable manual P 205 45.0216 123 -0.01 76
IV.PLLN.EHZ. 2020-10-17T06:06:25.70 0.3 undecidable manual P 295 41.4252 126 -0.06 77
IV.ESML.HHZ. 2020-10-17T06:06:25.38 0.3 undecidable manual P 132 36.1416 130 0.27 74
IV.ECHR.HHE. 2020-10-17T06:06:25.67 0.3 undecidable manual P 119 34.1436 131 0.8 63
IV.PETRA.HHZ. 2020-10-17T06:06:25.86 0.3 undecidable manual P 270 40.1265 126 0.27 73
IV.EPZF.HHZ. 2020-10-17T06:06:24.20 0.1 undecidable manual P 93 24.9528 141 0.31 100
IV.CAGR.HHE. 2020-10-17T06:06:24.42 0.6 undecidable manual P 195 24.5532 141 0.56 46
IV.MUCR.HHZ. 2020-10-17T06:06:24.78 0.1 positive manual P 49 34.9428 131 -0.19 99
IV.EMSG.HHZ. 2020-10-17T06:06:24.76 0.6 undecidable manual P 93 33.0447 132 0.01 52
IV.MSFR.HHZ. 2020-10-17T06:06:23.32 0.1 undecidable manual P 4 22.0668 145 -0.3 100
IV.GALF.HHZ. 2020-10-17T06:06:22.46 0.1 negative manual P 182 13.875 156 -0.54 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HNE. ML:2.0 0.00042724685 0.592 AML other m 2020-10-17T06:06:27.97
IV.GALF.HHE. ML:3.0 0.0038378855000000003 1.36 AML other m 2020-10-17T06:06:28.95
IV.GALF.HHN. ML:2.7 0.0018038645 0.4992 AML other m 2020-10-17T06:06:29.37
IV.GALF.HNN. ML:1.8 0.00025047145 0.448 AML other m 2020-10-17T06:06:29.37
IV.MSFR.HHN. ML:2.1 0.00043828215 1.68 AML other m 2020-10-17T06:06:29.90
IV.MSFR.HHE. ML:1.8 0.0002311706 0.3776 AML other m 2020-10-17T06:06:30.23
IV.EPZF.HHN. ML:2.5 0.0009591269 1.6192 AML other m 2020-10-17T06:06:31.82
IV.EPZF.HHE. ML:2.3 0.0007442288 0.4416 AML other m 2020-10-17T06:06:32.40
IV.ESML.HHE. ML:2.3 0.0005409187 0.6016 AML other m 2020-10-17T06:06:33.48
IV.MUCR.HHE. ML:2.4 0.00065613645 0.4 AML other m 2020-10-17T06:06:33.54
IV.ESML.HHN. ML:2.3 0.0005059272 0.1984 AML other m 2020-10-17T06:06:34.18
IV.MUCR.HHN. ML:2.4 0.0006716134000000001 0.5792 AML other m 2020-10-17T06:06:34.53
IV.PETRA.HHN. ML:2.2 0.0003585 0.32 AML other m 2020-10-17T06:06:37.74
IV.PETRA.HHE. ML:2.2 0.000381239 1.2384 AML other m 2020-10-17T06:06:37.27
IV.HLNI.HHE. ML:2.3 0.00036382215 0.3008 AML other m 2020-10-17T06:06:38.53
IV.HLNI.HHN. ML:2.3 0.00036685225 0.24 AML other m 2020-10-17T06:06:38.87
IV.EMSG.HHE. ML:2.6 0.001048 1.46 AML other m 2020-10-17T06:06:38.97
IV.HCRL.HHE. ML:2.6 0.0005465 0.5 AML other m 2020-10-17T06:06:40.37
IV.HCRL.HHN. ML:2.4 0.0003400685 0.2784 AML other m 2020-10-17T06:06:41.20
IV.RAFF.HHE. ML:2.2 0.0002036483 0.2816 AML other m 2020-10-17T06:06:41.16
IV.RAFF.HHN. ML:2.2 0.00022628524999999998 0.4608 AML other m 2020-10-17T06:06:41.74
IV.IACL.HHE. ML:2.4 0.00028849999999999997 1.52 AML other m 2020-10-17T06:06:42.89
IV.EMSG.HHN. ML:2.4 0.0007109999999999999 1.42 AML other m 2020-10-17T06:06:42.22
IV.IVPL.HHE. ML:2.6 0.0006355 0.54 AML other m 2020-10-17T06:06:43.87
IV.IACL.HHN. ML:2.3 0.00027100000000000003 1.08 AML other m 2020-10-17T06:06:43.24
IV.SCIAR.HHN. ML:2.3 0.000268 0.7 AML other m 2020-10-17T06:06:43.48
IV.SCIAR.HHE. ML:2.2 0.00023902690000000002 0.6592 AML other m 2020-10-17T06:06:44.30
IV.SCIAR.HNE. ML:2.3 0.00026143255 0.6112 AML other m 2020-10-17T06:06:44.62
IV.IVPL.HHN. ML:2.6 0.0005625 0.44 AML other m 2020-10-17T06:06:44.62
IV.SCIAR.HNN. ML:2.4 0.00030335979999999995 0.6496 AML other m 2020-10-17T06:06:44.47
IV.IFIL.HHN. ML:2.6 0.00046020355000000004 0.2784 AML other m 2020-10-17T06:06:45.72
IV.MPNC.HHE. ML:2.5 0.00040733125 1.3408 AML other m 2020-10-17T06:06:45.81
IV.IFIL.HHE. ML:2.9 0.001052963 0.3008 AML other m 2020-10-17T06:06:46.07
IV.MPNC.HHN. ML:2.4 0.00031512805 0.4 AML other m 2020-10-17T06:06:47.60
IV.HAVL.HHN. ML:2.6 0.000354 0.32 AML other m 2020-10-17T06:06:49.35
IV.HAVL.HHE. ML:2.6 0.00028849999999999997 0.3 AML other m 2020-10-17T06:06:49.68
IV.GMB.BHN. ML:2.6 0.00030346825 0.2432 AML other m 2020-10-17T06:06:54.66
MN.CEL.HHN. ML:2.2 0.00009418355500000001 1.04 AML other m 2020-10-17T06:06:55.44
IV.SOI.EHE. ML:2.2 0.0000838 0.64 AML other m 2020-10-17T06:06:56.61
IV.SOI.EHN. ML:2.1 0.00007039999999999999 0.9 AML other m 2020-10-17T06:06:57.45
MN.CEL.HHE. ML:2.0 0.00006981503 0.4 AML other m 2020-10-17T06:06:57.55
MN.CEL.HNN. ML:2.2 0.00009294807 0.8992 AML other m 2020-10-17T06:07:09.37
MN.CEL.HNE. ML:2.2 0.000102117185 1.1808 AML other m 2020-10-17T06:07:10.36
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