Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 14-11-2021 and time 17:31:49 (Italy) in region 5 km S Troina (EN)

A magnitude ML 2.1 earthquake occured in region: 5 km S Troina (EN), on

  • 14-11-2021 16:31:49 (UTC)
  • 14-11-2021 17:31:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7460, 14.5880 at 25 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 5 9373 9373
Gagliano Castelferrato EN 6 3593 12966
Cerami EN 10 2006 14972
Agira EN 11 8345 23317
Regalbuto EN 11 7277 30594
Capizzi ME 15 3176 33770
San Teodoro ME 15 1403 35173
Cesarò ME 16 2439 37612
Nissoria EN 16 3000 40612
Nicosia EN 17 13899 54511
Assoro EN 19 5191 59702
Centuripe EN 19 5470 65172

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km NW of Catania (314555 inhabitants)
53 Km W of Acireale (52622 inhabitants)
54 Km NE of Caltanissetta (63360 inhabitants)
81 Km NE of Gela (75827 inhabitants)
89 Km N of Vittoria (63339 inhabitants)
92 Km N of Ragusa (73313 inhabitants)
98 Km NW of Siracusa (122291 inhabitants)
99 Km SW of Messina (238439 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 2.1 2021-11-14
16:31:49		 37.7458 14.5878 25 2022-03-30
13:04:37		 Bollettino Sismico Italiano INGV 100882061
Reviewed
Rev100 		ML 2.1 2021-11-14
16:31:49		 37.7433 14.6232 29 2021-11-14
16:43:05		 Sala Sismica INGV-Roma 97464801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-14 16:31:49 ± 0.13
Latitude 37.7458 ± 0.0063
Longitude 14.5878 ± 0.0125
Depth (km) 25 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100882061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1119
Semi-minor axis of confidence ellipse (meter) 235
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 276
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.81748
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 35
Type of magnitude ML
Reference to an origin 100882061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-11 16:31:51

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 29
Type of magnitude ML
Reference to an origin 97464801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-14 16:43:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.CMP3.EHZ.02 2021-11-14T16:33:20.06 3.0 undecidable manual Sg 11.14 0
IV.CDRU.HNZ. 2021-11-14T16:33:15.41 3.0 undecidable manual Sg 9.66 0
IX.SCL3.EHZ.02 2021-11-14T16:33:12.59 3.0 undecidable manual Sn 1.08 0
IV.LPDG.HHZ. 2021-11-14T16:33:03.02 3.0 undecidable manual Sn 0.16 0
IV.TDS.HHZ. 2021-11-14T16:32:54.75 3.0 undecidable manual Sn -0.25 0
IV.HVIT.HHZ. 2021-11-14T16:32:14.56 0.6 undecidable manual S 184 83.7495 101 0.17 44
IV.HVZN.HHZ. 2021-11-14T16:32:10.27 0.6 undecidable manual S 170 63.9915 105 1.03 33
IV.CLTA.HHE. 2021-11-14T16:32:05.02 0.6 undecidable manual P 220 85.3479 101 1.03 33
IV.HLNI.HHZ. 2021-11-14T16:32:05.96 0.6 undecidable manual S 150 50.7159 110 0.11 48
IV.IACL.HHZ. 2021-11-14T16:32:04.31 0.3 undecidable manual P 347 89.6436 100 -0.33 64
IV.IFIL.HHZ. 2021-11-14T16:32:04.23 0.6 undecidable manual P 359 90.7425 100 -0.58 39
IV.MCPD.HHZ. 2021-11-14T16:32:04.05 0.6 undecidable manual S 17 43.3233 114 0.01 50
IV.MUCR.HHZ. 2021-11-14T16:32:03.58 0.6 undecidable manual S 37 41.4252 115 0.02 50
IV.HVIT.HHZ. 2021-11-14T16:32:03.16 0.3 undecidable manual P 184 83.7495 101 -0.58 62
IV.MPNC.HHZ. 2021-11-14T16:32:03.48 0.3 undecidable manual P 56 80.364 102 0.25 67
IV.SSY.HHZ. 2021-11-14T16:32:02.20 0.3 undecidable manual P 147 78.0663 102 -0.68 60
IV.MSFR.HHZ. 2021-11-14T16:32:01.76 0.6 undecidable manual S 1 31.9458 122 0.42 47
IV.GIB.HHE. 2021-11-14T16:32:00.37 0.6 undecidable manual P 299 56.1993 108 0.75 40
IV.AIO.HHZ. 2021-11-14T16:32:00.44 0.3 undecidable manual P 66 61.7937 106 -0.01 72
IV.RAFF.HHZ. 2021-11-14T16:32:00.48 0.3 undecidable manual P 199 61.3941 106 0.09 71
IV.HVZN.HHZ. 2021-11-14T16:32:00.47 0.3 undecidable manual P 170 63.9915 105 -0.3 69
IV.EPOZ.HHZ. 2021-11-14T16:31:59.56 0.3 undecidable manual P 99 53.3022 109 0.35 68
IV.HLNI.HHZ. 2021-11-14T16:31:58.16 0.1 undecidable manual P 150 50.7159 110 -0.66 85
IV.PLLN.EHN. 2021-11-14T16:31:58.57 0.3 undecidable manual P 305 47.619 111 0.2 72
IV.CSLB.HHE. 2021-11-14T16:31:58.88 0.6 undecidable manual P 295 51.1155 110 0 49
IV.GALF.HHZ. 2021-11-14T16:31:57.38 0.6 undecidable manual S 206 4.2957 169 0.46 48
IV.MCPD.HHZ. 2021-11-14T16:31:57.75 0.1 negative manual P 17 43.3233 114 -0.02 99
IV.EMSG.HHZ. 2021-11-14T16:31:57.01 0.6 undecidable manual P 75 32.8449 121 0.69 43
IV.MUCR.HHZ. 2021-11-14T16:31:57.24 0.3 undecidable manual P 37 41.4252 115 -0.25 71
IV.MSFR.HHZ. 2021-11-14T16:31:56.13 0.1 negative manual P 1 31.9458 122 -0.08 100
IV.EPZF.HHZ. 2021-11-14T16:31:55.84 0.1 undecidable manual P 70 25.1526 130 0.48 94
IV.ESCV.HHZ. 2021-11-14T16:31:54.56 0.1 positive manual P 90 19.9689 137 -0.22 100
IV.GALF.HHZ. 2021-11-14T16:31:53.20 0.1 negative manual P 206 4.2957 169 -0.46 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHN. ML:2.5 0.0018162745 1.616 AML other m 2021-11-14T16:31:58.88
IV.GALF.HNN. ML:1.7 0.00028549045 1.5648 AML other m 2021-11-14T16:31:58.88
IV.GALF.HHE. ML:2.4 0.0017017455 1.4368 AML other m 2021-11-14T16:31:58.12
IV.GALF.HNE. ML:1.5 0.00018982159 0.2048 AML other m 2021-11-14T16:31:58.13
IV.ESCV.HHN. ML:2.2 0.0008805 0.38 AML other m 2021-11-14T16:32:00.44
IV.MSFR.HHE. ML:1.5 0.000122 1.68 AML other m 2021-11-14T16:32:02.11
IV.MSFR.HHN. ML:1.6 0.000149 0.3 AML other m 2021-11-14T16:32:02.52
IV.MUCR.HHE. ML:2.0 0.000313 0.42 AML other m 2021-11-14T16:32:04.59
IV.MCPD.HHN. ML:1.8 0.00017496531499999998 0.4096 AML other m 2021-11-14T16:32:04.89
IV.MCPD.HHE. ML:2.0 0.00029549999999999997 1.66 AML other m 2021-11-14T16:32:05.99
IV.EPZF.HHE. ML:1.9 0.0003663628 0.4224 AML other m 2021-11-14T16:32:05.45
IV.ESCV.HHE. ML:2.2 0.0008060000000000001 0.36 AML other m 2021-11-14T16:32:05.50
IV.MUCR.HHN. ML:2.0 0.0003147425 1.4368 AML other m 2021-11-14T16:32:06.06
IV.HLNI.HHE. ML:2.0 0.00019786075 0.1792 AML other m 2021-11-14T16:32:08.63
IV.HLNI.HHN. ML:2.0 0.00023199999999999997 0.34 AML other m 2021-11-14T16:32:08.99
IV.EPOZ.HNN. ML:1.8 0.00013775474999999998 0.1024 AML other m 2021-11-14T16:32:09.73
IV.EPOZ.HNE. ML:1.5 0.00007663555400000001 0.064 AML other m 2021-11-14T16:32:11.05
IV.IACL.HHE. ML:1.9 0.000089124905 0.6016 AML other m 2021-11-14T16:32:11.12
IV.EMSG.HHN. ML:2.2 0.00052546595 0.3712 AML other m 2021-11-14T16:32:11.51
IV.RAFF.HHN. ML:2.1 0.0002147884 0.2432 AML other m 2021-11-14T16:32:11.62
IV.RAFF.HHE. ML:2.1 0.0002375 0.3 AML other m 2021-11-14T16:32:11.57
IV.AIO.HHN. ML:2.0 0.0001861553 0.32 AML other m 2021-11-14T16:32:12.66
IV.IACL.HHN. ML:1.9 0.000095899375 0.7808 AML other m 2021-11-14T16:32:13.45
IV.EPOZ.HHN. ML:1.8 0.00013557830000000002 0.4864 AML other m 2021-11-14T16:32:14.32
IV.EPOZ.HHE. ML:2.0 0.00019712335000000001 0.576 AML other m 2021-11-14T16:32:14.36
IV.HVIT.HHN. ML:2.1 0.00015084999999999998 0.28 AML other m 2021-11-14T16:32:15.05
IV.MPNC.HHN. ML:2.4 0.0003285 0.58 AML other m 2021-11-14T16:32:15.62
IV.EMSG.HHE. ML:2.2 0.0006182231 1.3216 AML other m 2021-11-14T16:32:16.74
IV.SSY.HHE. ML:2.5 0.0004473268499999999 0.3328 AML other m 2021-11-14T16:32:16.58
IV.SSY.HNN. ML:2.3 0.00028349999999999995 0.36 AML other m 2021-11-14T16:32:17.83
IV.MPNC.HHE. ML:2.3 0.0002439865 0.512 AML other m 2021-11-14T16:32:18.79
IV.SSY.HHN. ML:2.8 0.0008325 0.24 AML other m 2021-11-14T16:32:21.43
IV.SSY.HNE. ML:2.3 0.000279 0.24 AML other m 2021-11-14T16:32:21.43
IV.HVIT.HHE. ML:2.0 0.0001295 0.34 AML other m 2021-11-14T16:32:21.53
IV.IFIL.HHN. ML:2.2 0.00015702713 0.64 AML other m 2021-11-14T16:32:26.96
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