Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 17-01-2021 and time 17:38:20 (Italy) in region 7 km W Linguaglossa (CT)

A magnitude ML 2.3 earthquake occured in region: 7 km W Linguaglossa (CT), on

  • 17-01-2021 16:38:20 (UTC)
  • 17-01-2021 17:38:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8260, 15.0650 at 24 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
Linguaglossa CT 7 5403 5403
Castiglione di Sicilia CT 8 3215 8618
Moio Alcantara ME 8 717 9335
Piedimonte Etneo CT 10 3963 13298
Malvagna ME 10 733 14031
Francavilla di Sicilia ME 11 3945 17976
Sant'Alfio CT 11 1582 19558
Randazzo CT 12 10900 30458
Milo CT 12 1087 31545
Motta Camastra ME 12 845 32390
Roccella Valdemone ME 13 666 33056
Fiumefreddo di Sicilia CT 13 9623 42679
Santa Domenica Vittoria ME 14 980 43659
Mascali CT 14 14282 57941
Gaggi ME 14 3184 61125
Calatabiano CT 14 5308 66433
Zafferana Etnea CT 15 9517 75950
Giarre CT 15 27659 103609
Graniti ME 16 1492 105101
Riposto CT 16 14838 119939
Santa Venerina CT 17 8592 128531
Maletto CT 17 3920 132451
Giardini-Naxos ME 19 9415 141866
Castelmola ME 19 1088 142954
Taormina ME 19 10960 153914

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of Acireale (52622 inhabitants)
36 Km N of Catania (314555 inhabitants)
59 Km SW of Messina (238439 inhabitants)
60 Km SW of Reggio di Calabria (183035 inhabitants)
88 Km N of Siracusa (122291 inhabitants)
96 Km E of Caltanissetta (63360 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 2021-01-17
16:38:20		 37.8265 15.0653 25 2021-07-12
16:54:56		 Bollettino Sismico Italiano INGV 86375831
Reviewed
Rev200 		ML 2.0 2021-01-17
16:38:20		 37.84 15.038 16 2021-03-04
15:34:31		 Sala Operativa INGV_OE (Catania) 86333841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-17 16:38:20 ± 0.11
Latitude 37.8265 ± 0.0045
Longitude 15.0653 ± 0.0091
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86375831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 731
Semi-minor axis of confidence ellipse (meter) 395
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 302
Circular confidence region, given by single value of horizontal uncertainty (meter) 730.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.82108
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 86375831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-19 10:58:06

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 86333841
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-01-17 17:09:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HPAC.HHZ. 2021-01-17T16:38:57.14 3.0 undecidable manual S 1.11 0
IV.PLAC.HHZ. 2021-01-17T16:38:44.07 3.0 negative manual Pg 1.39 0
IV.SSY.HHZ. 2021-01-17T16:38:42.93 0.3 undecidable manual S 179 74.1702 102 0.25 63
IV.MSRU.HHZ. 2021-01-17T16:38:40.31 0.6 undecidable manual S 38 62.0934 105 0.77 38
IV.HAGA.HHZ. 2021-01-17T16:38:39.28 0.3 undecidable manual S 172 60.5949 105 0.13 67
IV.HCRL.HHZ. 2021-01-17T16:38:39.09 0.3 undecidable manual S 183 60.3951 106 0 69
IV.HMDC.HHZ. 2021-01-17T16:38:37.03 3.0 negative manual P -0.3 0
IV.HLNI.HHZ. 2021-01-17T16:38:37.15 0.3 undecidable manual S 198 55.6998 107 -0.75 58
IV.GALF.HHZ. 2021-01-17T16:38:35.91 0.3 undecidable manual S 254 45.621 111 0.56 61
IV.RAFF.HHZ. 2021-01-17T16:38:35.62 0.3 undecidable manual P 223 91.1421 100 -0.06 65
IV.MPNC.HHZ. 2021-01-17T16:38:34.80 0.3 undecidable manual S 35 43.5231 112 -0.04 70
IV.SSY.HHZ. 2021-01-17T16:38:32.88 0.1 undecidable manual P 179 74.1702 102 -0.23 86
IV.PETRA.HHZ. 2021-01-17T16:38:31.11 3.0 negative manual P -4.25 0
IV.MSRU.HHZ. 2021-01-17T16:38:31.83 0.3 undecidable manual P 38 62.0934 105 0.53 62
IV.IVPL.HHZ. 2021-01-17T16:38:31.67 0.1 undecidable manual P 353 61.494 105 0.47 83
IV.AIO.HHZ. 2021-01-17T16:38:30.16 0.6 undecidable manual S 42 21.7671 133 0.26 47
IV.ENIC.HHZ. 2021-01-17T16:38:30.66 0.6 undecidable manual S 190 21.9669 133 0.72 40
IV.HAGA.HHZ. 2021-01-17T16:38:30.64 0.1 undecidable manual P 172 60.5949 105 -0.44 84
IV.NOV.HHZ. 2021-01-17T16:38:30.17 0.6 undecidable manual S 16 23.1546 131 -0.01 49
IV.HCRL.HHZ. 2021-01-17T16:38:30.74 0.1 undecidable manual P 183 60.3951 106 -0.3 87
IV.EPZF.HHZ. 2021-01-17T16:38:29.49 0.6 undecidable manual S 269 18.2706 139 0.24 47
IV.HLNI.HHZ. 2021-01-17T16:38:29.76 0.1 undecidable manual P 198 55.6998 107 -0.59 82
IV.EVRN.HHZ. 2021-01-17T16:38:29.72 0.6 undecidable manual S 158 16.4724 142 0.79 40
IV.GALF.HHZ. 2021-01-17T16:38:29.69 0.3 undecidable manual P 254 45.621 111 0.81 55
IV.MPNC.HHZ. 2021-01-17T16:38:28.77 0.1 undecidable manual P 35 43.5231 112 0.19 92
IV.EMCN.HNZ. 2021-01-17T16:38:27.85 0.3 undecidable manual S 215 4.7952 168 0.26 72
IV.ESPC.HHN. 2021-01-17T16:38:27.93 0.3 undecidable manual S 193 15.2736 144 -0.81 59
IV.EPIT.HHN. 2021-01-17T16:38:27.56 0.3 undecidable manual S 204 1.7982 175 0.09 76
IV.ECTS.HHZ. 2021-01-17T16:38:27.23 0.3 undecidable manual S 38 7.881 160 -0.58 65
IV.ENIC.HHZ. 2021-01-17T16:38:26.47 0.1 undecidable manual P 190 21.9669 133 0.71 81
IV.ESML.HHZ. 2021-01-17T16:38:26.91 0.3 undecidable manual P 215 28.2495 125 0.4 67
IV.ECHR.HHE. 2021-01-17T16:38:26.42 0.3 undecidable manual P 221 20.4684 135 0.83 58
IV.MUCR.HHZ. 2021-01-17T16:38:26.32 0.1 undecidable manual P 325 29.2485 124 -0.32 91
IV.EMPL.HHZ. 2021-01-17T16:38:25.03 0.3 undecidable manual P 207 18.3705 139 -0.33 70
IV.NOV.HHZ. 2021-01-17T16:38:25.79 0.1 undecidable manual P 16 23.1546 131 -0.1 96
IV.EPOZ.HHZ. 2021-01-17T16:38:25.97 0.1 undecidable manual P 148 20.2686 135 0.4 91
IV.EPZF.HHZ. 2021-01-17T16:38:25.13 0.1 positive manual P 269 18.2706 139 -0.22 95
IV.ESCV.HHN. 2021-01-17T16:38:25.89 0.1 undecidable manual P 248 23.6541 130 -0.05 98
IV.EVRN.HHZ. 2021-01-17T16:38:25.39 0.1 negative manual P 158 16.4724 142 0.22 95
IV.ECZM.HHN. 2021-01-17T16:38:25.59 0.3 undecidable manual P 233 17.6712 140 0.3 70
IV.AIO.HHZ. 2021-01-17T16:38:25.63 0.3 undecidable manual P 42 21.7671 133 -0.1 72
IV.ESPC.HHN. 2021-01-17T16:38:24.55 0.1 undecidable manual P 193 15.2736 144 -0.51 89
IV.ESAL.HHE. 2021-01-17T16:38:24.69 0.1 undecidable manual P 143 9.9789 155 0.04 100
IV.EPIT.HHN. 2021-01-17T16:38:24.21 0.1 positive manual P 204 1.7982 175 -0.12 99
IV.EMFS.HHE. 2021-01-17T16:38:24.76 0.1 undecidable manual P 207 13.2756 148 -0.13 97
IV.ECTS.HHZ. 2021-01-17T16:38:24.05 0.1 positive manual P 38 7.881 160 -0.48 91
IV.ECBD.HHN. 2021-01-17T16:38:24.33 0.1 undecidable manual P 160 5.4945 166 -0.09 99
IV.ESVO.HHE. 2021-01-17T16:38:24.80 0.1 undecidable manual P 240 11.9769 151 0.01 100
IV.EMNR.HHZ. 2021-01-17T16:38:24.28 0.1 undecidable manual P 253 3.5964 171 -0.08 100
IV.EMCN.HNZ. 2021-01-17T16:38:24.23 0.1 undecidable manual P 215 4.7952 168 -0.17 98
IV.EMFO.HHE. 2021-01-17T16:38:24.69 0.3 undecidable manual P 168 10.2786 154 0.02 75
IV.EMSG.HHZ. 2021-01-17T16:38:24.45 0.1 positive manual P 266 10.1787 155 -0.22 96
IV.EFIU.HHE. 2021-01-17T16:38:24.71 0.1 undecidable manual P 108 13.3755 148 -0.19 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ECTS.HHE. ML:2.6 0.002395 0.28 AML other m 2021-01-17T16:38:27.51
IV.ECTS.HHN. ML:2.2 0.0010139333 0.1792 AML other m 2021-01-17T16:38:27.44
IV.ESML.HNN. ML:2.7 0.0020964786699999996 0.8864 AML other m 2021-01-17T16:38:29.25
IV.EPZF.HHE. ML:2.6 0.0018128880000000001 0.5248 AML other m 2021-01-17T16:38:29.94
IV.EPZF.HHN. ML:2.5 0.0014775908499999998 1.7568 AML other m 2021-01-17T16:38:30.93
IV.NOV.HHN. ML:2.4 0.0010952465 0.5248 AML other m 2021-01-17T16:38:30.69
IV.NOV.HHE. ML:2.6 0.001677543 0.4096 AML other m 2021-01-17T16:38:30.27
IV.EMSG.HHN. ML:2.6 0.0023450000000000003 0.26 AML other m 2021-01-17T16:38:32.81
IV.ENIC.HHN. ML:2.4 0.0010852008500000002 0.1792 AML other m 2021-01-17T16:38:33.39
IV.EMSG.HHE. ML:2.6 0.0023781999999999996 0.4096 AML other m 2021-01-17T16:38:33.50
IV.ESML.HNE. ML:1.8 0.0002333432 0.9632 AML other m 2021-01-17T16:38:33.73
IV.ENIC.HHE. ML:2.4 0.001113939 0.1792 AML other m 2021-01-17T16:38:33.73
IV.MPNC.HHE. ML:2.1 0.00037076580000000006 0.448 AML other m 2021-01-17T16:38:35.49
IV.ESML.HHN. ML:1.9 0.0002906633 0.2176 AML other m 2021-01-17T16:38:35.60
IV.ESML.HHE. ML:2.0 0.00037567605 0.2176 AML other m 2021-01-17T16:38:36.86
IV.MPNC.HHN. ML:2.1 0.00035950000000000006 0.56 AML other m 2021-01-17T16:38:37.49
IV.ENIC.HNN. ML:2.5 0.0014899520000000001 0.448 AML other m 2021-01-17T16:38:37.45
IV.ENIC.HNE. ML:2.4 0.0012987867500000002 1.8208 AML other m 2021-01-17T16:38:38.08
IV.HAGA.HHN. ML:2.2 0.00028324860000000004 0.1408 AML other m 2021-01-17T16:38:39.52
IV.GALF.HHN. ML:2.2 0.00041700000000000005 1.6 AML other m 2021-01-17T16:38:39.07
IV.HMDC.HNN. ML:2.3 0.00019642520000000003 1.3088 AML other m 2021-01-17T16:38:40.03
IV.HCRL.HHE. ML:2.4 0.000483 0.14 AML other m 2021-01-17T16:38:40.12
IV.HCRL.HHN. ML:2.4 0.0004355 0.14 AML other m 2021-01-17T16:38:40.46
IV.GALF.HNE. ML:1.7 0.00012380069 1.3728 AML other m 2021-01-17T16:38:41.01
IV.GALF.HHE. ML:2.2 0.00044364519999999996 0.4224 AML other m 2021-01-17T16:38:41.70
IV.HAGA.HHE. ML:2.2 0.00028162159999999995 0.1152 AML other m 2021-01-17T16:38:41.00
IV.MSRU.HHN. ML:1.8 0.00010450493499999999 0.2048 AML other m 2021-01-17T16:38:44.05
IV.HMDC.HNE. ML:2.3 0.00018283765000000002 0.6784 AML other m 2021-01-17T16:38:44.58
IV.IVPL.HHE. ML:2.3 0.00036840835 1.4368 AML other m 2021-01-17T16:38:46.07
IV.GALF.HNN. ML:1.7 0.00012821335 0.9088 AML other m 2021-01-17T16:38:47.56
IV.RAFF.HHN. ML:2.1 0.00015193856 0.3712 AML other m 2021-01-17T16:38:49.34
IV.IVPL.HHN. ML:2.4 0.00051821055 0.832 AML other m 2021-01-17T16:38:49.22
IV.HMDC.HHE. ML:2.3 0.00018914642500000002 0.192 AML other m 2021-01-17T16:38:50.43
IV.HMDC.HHN. ML:2.2 0.00016583983 1.7824 AML other m 2021-01-17T16:38:55.03
IV.MSRU.HHE. ML:2.0 0.00016406294999999997 0.768 AML other m 2021-01-17T16:38:55.42
IV.RAFF.HHE. ML:2.3 0.00022323999999999998 1.3376 AML other m 2021-01-17T16:39:04.06
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