Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 11-01-2021 and time 07:48:23 (Italy) in region 6 km NW Milo (CT)

A magnitude ML 2.0 earthquake occured in region: 6 km NW Milo (CT), on

  • 11-01-2021 06:48:23 (UTC)
  • 11-01-2021 07:48:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7630, 15.0640 at 8 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
Milo CT 6 1087 1087
Sant'Alfio CT 7 1582 2669
Zafferana Etnea CT 8 9517 12186
Santa Venerina CT 11 8592 20778
Giarre CT 11 27659 48437
Linguaglossa CT 11 5403 53840
Piedimonte Etneo CT 11 3963 57803
Mascali CT 12 14282 72085
Riposto CT 13 14838 86923
Fiumefreddo di Sicilia CT 13 9623 96546
Castiglione di Sicilia CT 14 3215 99761
Moio Alcantara ME 15 717 100478
Calatabiano CT 16 5308 105786
Pedara CT 16 14102 119888
Trecastagni CT 16 10910 130798
Randazzo CT 17 10900 141698
Nicolosi CT 17 7463 149161
Francavilla di Sicilia ME 17 3945 153106
Viagrande CT 17 8563 161669
Malvagna ME 18 733 162402
Gaggi ME 18 3184 165586
Motta Camastra ME 18 845 166431
Aci Sant'Antonio CT 18 17984 184415
Ragalna CT 18 3924 188339
Aci Bonaccorsi CT 19 3524 191863
Maletto CT 19 3920 195783
Acireale CT 19 52622 248405
Aci Catena CT 19 29851 278256
Santa Domenica Vittoria ME 19 980 279236
Roccella Valdemone ME 20 666 279902

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of Acireale (52622 inhabitants)
29 Km N of Catania (314555 inhabitants)
64 Km SW of Reggio di Calabria (183035 inhabitants)
65 Km SW of Messina (238439 inhabitants)
81 Km N of Siracusa (122291 inhabitants)
93 Km E of Caltanissetta (63360 inhabitants)
98 Km N of Ragusa (73313 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 2.0 2021-01-11
06:48:23		 37.763 15.0642 8 2021-07-12
16:54:55		 Bollettino Sismico Italiano INGV 86205721
Reviewed
Rev200 		ML 1.8 2021-01-11
06:48:22		 37.751 15.043 4 2021-03-02
15:01:12		 Sala Operativa INGV_OE (Catania) 86165051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-11 06:48:23 ± 0.09
Latitude 37.7630 ± 0.0045
Longitude 15.0642 ± 0.0068
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86205721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 506
Semi-minor axis of confidence ellipse (meter) 396
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.60524
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 86205721
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-12 14:26:43

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 86165051
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-01-11 06:53:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IFIL.HHZ. 2021-01-11T06:48:54.83 3.0 undecidable manual S -0.64 0
IV.SSY.HHZ. 2021-01-11T06:48:44.99 0.3 undecidable manual S 179 67.1772 50 0.28 64
IV.MPNC.HHZ. 2021-01-11T06:48:40.02 0.3 undecidable manual S 31 49.5171 50 0.03 69
IV.SSY.HHZ. 2021-01-11T06:48:35.55 0.3 undecidable manual P 179 67.1772 50 -0.22 64
IV.MPNC.HHZ. 2021-01-11T06:48:32.84 0.3 undecidable manual P 31 49.5171 50 -0.21 67
IV.GALF.HHZ. 2021-01-11T06:48:32.52 0.3 undecidable manual P 263 44.0226 50 0.31 66
IV.MUCR.HHZ. 2021-01-11T06:48:30.44 0.3 undecidable manual P 332 35.2425 102 -0.35 66
IV.AIO.HHZ. 2021-01-11T06:48:29.09 0.3 undecidable manual P 33 27.4503 106 -0.18 70
IV.EMSG.HHZ. 2021-01-11T06:48:29.15 0.3 undecidable manual S 303 11.877 123 0.68 63
IV.EVRN.HHZ. 2021-01-11T06:48:28.25 0.3 undecidable manual S 143 10.2786 127 0.23 71
IV.ESLN.HHZ. 2021-01-11T06:48:27.37 0.3 undecidable manual S 226 10.9779 125 -0.86 58
IV.ECHR.HHE. 2021-01-11T06:48:27.03 0.3 undecidable manual P 237 15.7731 116 -0.05 73
IV.EPZF.HHZ. 2021-01-11T06:48:27.60 0.3 undecidable manual P 290 19.3695 112 -0.14 71
IV.EPOZ.HHZ. 2021-01-11T06:48:27.29 0.3 undecidable manual P 133 14.874 117 0.37 68
IV.ENIC.HHZ. 2021-01-11T06:48:27.21 0.3 undecidable manual P 194 15.0738 117 0.26 70
IV.EMSG.HHZ. 2021-01-11T06:48:26.49 0.1 undecidable manual P 303 11.877 123 0.09 97
IV.EFIU.HHE. 2021-01-11T06:48:26.59 0.3 undecidable manual P 77 13.1757 120 -0.03 74
IV.ECTS.HHZ. 2021-01-11T06:48:26.46 0.3 undecidable manual P 21 14.0748 118 -0.32 69
IV.EVRN.HHZ. 2021-01-11T06:48:26.00 0.3 undecidable manual P 143 10.2786 127 -0.14 72
IV.ECNE.HHN. 2021-01-11T06:48:25.99 0.3 undecidable manual P 273 5.4945 144 0.54 67
IV.ECBD.HHN. 2021-01-11T06:48:25.16 0.1 negative manual P 46 2.6973 160 -0.04 100
IV.ESLN.HHZ. 2021-01-11T06:48:25.72 0.3 undecidable manual P 226 10.9779 125 -0.54 66
IV.EPIT.HHN. 2021-01-11T06:48:25.58 0.1 positive manual P 353 5.3946 145 0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EVRN.HNE. ML:2.4 0.003675 1.5 AML other m 2021-01-11T06:48:28.09
IV.EVRN.HHE. ML:2.4 0.0034249999999999997 1.44 AML other m 2021-01-11T06:48:28.12
IV.EVRN.HHN. ML:2.5 0.00417 0.42 AML other m 2021-01-11T06:48:29.05
IV.EMSG.HHN. ML:2.4 0.003055 1.08 AML other m 2021-01-11T06:48:29.61
IV.EVRN.HNN. ML:2.4 0.003925 0.14 AML other m 2021-01-11T06:48:30.38
IV.ECTS.HHN. ML:1.7 0.000546 0.8 AML other m 2021-01-11T06:48:30.91
IV.EMSG.HHE. ML:2.2 0.00215 0.62 AML other m 2021-01-11T06:48:31.15
IV.EPZF.HHE. ML:2.0 0.0008859999999999999 0.62 AML other m 2021-01-11T06:48:33.61
IV.EPZF.HHN. ML:2.2 0.00115 0.72 AML other m 2021-01-11T06:48:34.51
IV.ECTS.HHE. ML:1.7 0.0005585 0.38 AML other m 2021-01-11T06:48:34.51
IV.AIO.HHN. ML:1.5 0.00017999999999999998 0.5 AML other m 2021-01-11T06:48:36.01
IV.ENIC.HHN. ML:2.0 0.001144 0.2 AML other m 2021-01-11T06:48:36.25
IV.ENIC.HHE. ML:2.0 0.001125 0.34 AML other m 2021-01-11T06:48:36.69
IV.AIO.HHE. ML:1.6 0.0002035 1.1 AML other m 2021-01-11T06:48:36.92
IV.MUCR.HHE. ML:1.5 0.00013350000000000002 0.36 AML other m 2021-01-11T06:48:41.39
IV.MUCR.HHN. ML:1.5 0.000126 0.48 AML other m 2021-01-11T06:48:43.37
IV.GALF.HHN. ML:2.0 0.0003125 0.42 AML other m 2021-01-11T06:48:47.90
IV.GALF.HHE. ML:2.0 0.000307 1.3 AML other m 2021-01-11T06:48:52.13
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