Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 16-02-2020 and time 21:26:33 (UTC) in region 6 km SE Troina (EN)

A magnitude ML 2.1 earthquake occured in region: 6 km SE Troina (EN), on

  • 16-02-2020 21:26:33 (UTC)
  • 16-02-2020 22:26:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7380, 14.6320 at 29 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
Gagliano Castelferrato EN 9 3593 12966
Regalbuto EN 9 7277 20243
Agira EN 13 8345 28588
San Teodoro ME 14 1403 29991
Cerami EN 14 2006 31997
Cesarò ME 14 2439 34436
Centuripe EN 16 5470 39906
Nissoria EN 18 3000 42906
Capizzi ME 18 3176 46082
Bronte CT 19 19172 65254
Adrano CT 20 36122 101376
Catenanuova EN 20 4866 106242

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NW of Catania (314555 inhabitants)
49 Km W of Acireale (52622 inhabitants)
57 Km NE of Caltanissetta (63360 inhabitants)
82 Km NE of Gela (75827 inhabitants)
88 Km N of Vittoria (63339 inhabitants)
91 Km N of Ragusa (73313 inhabitants)
95 Km NW of Siracusa (122291 inhabitants)
96 Km SW of Messina (238439 inhabitants)
98 Km W of Reggio di Calabria (183035 inhabitants)
98 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 2020-02-16
21:26:33		 37.7375 14.6325 29 2020-07-18
21:08:32		 Bollettino Sismico Italiano INGV 78194201
Reviewed
Rev100 		ML 2.1 2020-02-16
21:26:32		 37.7502 14.5543 30 2020-02-16
21:32:58		 Sala Sismica INGV-Roma 76575841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-16 21:26:33 ± 0.24
Latitude 37.7375 ± 0.0099
Longitude 14.6325 ± 0.0148
Depth (km) 29 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 78194201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1234
Semi-minor axis of confidence ellipse (meter) 590
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 101
Circular confidence region, given by single value of horizontal uncertainty (meter) 1230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 41
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.53
Epicentral distance of station closest to the epicenter (degree) 0.05846
Epicentral distance of station farthest from the epicenter (degree) 1.07739
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 76575841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-16 21:32:58

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 78194201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-14 12:25:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2020-02-16T21:26:58.36 0.3 undecidable manual S 149 75.1692 106 1.62 38
IV.MPNC.HHZ. 2020-02-16T21:26:58.55 0.3 undecidable manual S 54 77.6667 106 1.17 48
IV.MEU.EHZ. 2020-02-16T21:26:55.55 0.3 undecidable manual S 166 71.6727 107 -0.29 66
IV.HAGA.HHZ. 2020-02-16T21:26:54.66 0.3 undecidable manual S 137 68.0763 108 -0.27 66
IV.AIO.HHZ. 2020-02-16T21:26:53.09 0.6 undecidable manual S 64 58.5969 111 0.54 44
IV.HPAC.HHZ. 2020-02-16T21:26:53.24 0.3 undecidable manual P 162 119.5914 54 -0.15 62
IV.PLLN.EHZ. 2020-02-16T21:26:52.32 0.6 undecidable manual S 304 51.4152 114 1.56 25
IV.HLNI.HHZ. 2020-02-16T21:26:50.39 0.3 undecidable manual S 154 48.0186 116 0.44 68
IV.MSRU.HHZ. 2020-02-16T21:26:50.00 0.3 undecidable manual P 52 96.3258 102 -0.09 66
IV.IACL.HHZ. 2020-02-16T21:26:48.83 0.3 undecidable manual P 345 91.5417 103 -0.54 61
IV.ILLI.HHZ. 2020-02-16T21:26:48.81 0.6 undecidable manual P 19 83.25 104 0.68 39
IV.MUCR.HHZ. 2020-02-16T21:26:47.27 0.3 undecidable manual S 32 39.9267 121 -0.78 60
IV.MPNC.HHZ. 2020-02-16T21:26:47.07 0.3 undecidable manual P 54 77.6667 106 -0.23 66
IV.SSY.HHZ. 2020-02-16T21:26:46.50 0.3 undecidable manual P 149 75.1692 106 -0.43 64
IV.HAGA.HHZ. 2020-02-16T21:26:45.32 0.3 undecidable manual P 137 68.0763 108 -0.57 61
IV.MEU.EHZ. 2020-02-16T21:26:45.85 0.6 undecidable manual P 166 71.6727 107 -0.56 41
IV.RAFF.HHZ. 2020-02-16T21:26:45.11 0.3 undecidable manual P 203 61.8936 110 0.13 70
IV.CAGR.HHZ. 2020-02-16T21:26:45.26 0.6 undecidable manual S 222 17.2716 146 1.66 26
IV.EPZF.HHZ. 2020-02-16T21:26:44.24 0.3 undecidable manual S 64 21.867 139 -0.1 75
IV.AIO.HHZ. 2020-02-16T21:26:44.31 0.6 undecidable manual P 64 58.5969 111 -0.2 46
IV.PLLN.EHZ. 2020-02-16T21:26:44.19 0.3 undecidable manual P 304 51.4152 114 0.71 59
IV.PETRA.HHN. 2020-02-16T21:26:43.46 0.1 undecidable manual P 283 46.62 117 0.64 82
IV.HLNI.HHZ. 2020-02-16T21:26:42.59 0.1 undecidable manual P 154 48.0186 116 -0.42 90
IV.ECHR.HHE. 2020-02-16T21:26:41.59 0.6 undecidable manual P 103 25.2525 135 1.47 30
IV.MUCR.HHZ. 2020-02-16T21:26:41.54 0.1 positive manual P 32 39.9267 121 -0.38 92
IV.GALF.HHZ. 2020-02-16T21:26:41.22 0.3 undecidable manual S 243 6.4935 166 -1.21 53
IV.EMSG.HHZ. 2020-02-16T21:26:40.73 0.1 undecidable manual P 72 29.3484 130 0.14 99
IV.ESML.HHE. 2020-02-16T21:26:40.73 0.6 undecidable manual P 121 25.3524 135 0.59 45
IV.CAGR.HHZ. 2020-02-16T21:26:39.54 0.1 undecidable manual P 222 17.2716 146 0.19 99
IV.EPZF.HHZ. 2020-02-16T21:26:39.66 0.1 undecidable manual P 64 21.867 139 -0.12 100
IV.GALF.HHZ. 2020-02-16T21:26:37.52 0.1 undecidable manual P 243 6.4935 166 -1.14 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHN. ML:2.3 0.0010575 0.38 AML other m 2020-02-16T21:26:42.30
IV.GALF.HHE. ML:2.3 0.0010680000000000002 0.84 AML other m 2020-02-16T21:26:43.51
IV.EPZF.HHN. ML:2.1 0.0005809999999999999 0.46 AML other m 2020-02-16T21:26:45.88
IV.CAGR.HHE. ML:2.0 0.00049 0.76 AML other m 2020-02-16T21:26:46.80
IV.CAGR.HHN. ML:2.1 0.0005344999999999999 0.94 AML other m 2020-02-16T21:26:46.33
IV.MUCR.HHN. ML:1.8 0.000191 0.6 AML other m 2020-02-16T21:26:48.26
IV.MUCR.HHE. ML:1.9 0.000224 1.1 AML other m 2020-02-16T21:26:48.44
IV.EPZF.HHE. ML:2.0 0.000432 0.46 AML other m 2020-02-16T21:26:50.64
IV.HLNI.HHN. ML:1.8 0.000133 1.08 AML other m 2020-02-16T21:26:51.92
IV.HLNI.HHE. ML:1.9 0.00017099999999999998 1.56 AML other m 2020-02-16T21:26:52.88
IV.AIO.HHE. ML:1.8 0.00010605 0.88 AML other m 2020-02-16T21:26:54.55
IV.AIO.HHN. ML:1.8 0.0001051 0.9 AML other m 2020-02-16T21:26:54.94
IV.HAGA.HHN. ML:2.0 0.00015150000000000002 0.36 AML other m 2020-02-16T21:26:55.37
IV.HAGA.HHE. ML:2.0 0.00015050000000000003 0.52 AML other m 2020-02-16T21:26:56.24
IV.PLLN.EHE. ML:1.9 0.0001545 1.3 AML other m 2020-02-16T21:26:56.71
IV.PLLN.EHN. ML:1.9 0.000177 1.42 AML other m 2020-02-16T21:26:56.09
IV.RAFF.HHN. ML:1.9 0.0001485 0.24 AML other m 2020-02-16T21:26:58.43
IV.RAFF.HHE. ML:1.9 0.00013475 0.54 AML other m 2020-02-16T21:26:58.46
IV.SSY.HHE. ML:2.5 0.00047650000000000004 0.82 AML other m 2020-02-16T21:26:58.97
IV.SSY.HHN. ML:2.7 0.000755 0.48 AML other m 2020-02-16T21:26:59.28
IV.MEU.EHE. ML:2.2 0.00020950000000000002 0.82 AML other m 2020-02-16T21:27:01.12
IV.MPNC.HHE. ML:2.1 0.00016849999999999998 1.32 AML other m 2020-02-16T21:27:01.14
IV.MEU.EHN. ML:2.3 0.00028849999999999997 0.42 AML other m 2020-02-16T21:27:02.26
IV.MPNC.HHN. ML:2.0 0.0001325 0.42 AML other m 2020-02-16T21:27:02.29
IV.ILLI.HHE. ML:2.8 0.0007930000000000001 0.94 AML other m 2020-02-16T21:27:04.69
IV.MSRU.HHN. ML:2.0 0.000088 1.26 AML other m 2020-02-16T21:27:05.30
IV.MSRU.HHE. ML:2.0 0.0001085 0.38 AML other m 2020-02-16T21:27:08.25
IV.ILLI.HHN. ML:2.9 0.0009824999999999999 1.36 AML other m 2020-02-16T21:27:10.05
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