Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 11-01-2021 and time 06:52:10 (Italy) in region 7 km NW Milo (CT)

A magnitude ML 2.1 earthquake occured in region: 7 km NW Milo (CT), on

  • 11-01-2021 05:52:10 (UTC)
  • 11-01-2021 06:52:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7520, 15.0520 at 9 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 7 1087 1087
Zafferana Etnea CT 8 9517 10604
Sant'Alfio CT 8 1582 12186
Santa Venerina CT 11 8592 20778
Giarre CT 12 27659 48437
Mascali CT 13 14282 62719
Piedimonte Etneo CT 13 3963 66682
Linguaglossa CT 13 5403 72085
Riposto CT 14 14838 86923
Fiumefreddo di Sicilia CT 15 9623 96546
Pedara CT 15 14102 110648
Trecastagni CT 15 10910 121558
Nicolosi CT 15 7463 129021
Castiglione di Sicilia CT 16 3215 132236
Viagrande CT 16 8563 140799
Moio Alcantara ME 16 717 141516
Ragalna CT 17 3924 145440
Randazzo CT 17 10900 156340
Aci Sant'Antonio CT 17 17984 174324
Calatabiano CT 18 5308 179632
Aci Bonaccorsi CT 18 3524 183156
Francavilla di Sicilia ME 18 3945 187101
Maletto CT 18 3920 191021
Aci Catena CT 18 29851 220872
Acireale CT 19 52622 273494
Malvagna ME 19 733 274227
Belpasso CT 19 28108 302335
Gaggi ME 19 3184 305519
Motta Camastra ME 19 845 306364
Tremestieri Etneo CT 20 20589 326953
Bronte CT 20 19172 346125
San Giovanni la Punta CT 20 23060 369185
Mascalucia CT 20 31958 401143
Santa Domenica Vittoria ME 20 980 402123
San Pietro Clarenza CT 20 7743 409866

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of Acireale (52622 inhabitants)
28 Km N of Catania (314555 inhabitants)
66 Km SW of Reggio di Calabria (183035 inhabitants)
66 Km SW of Messina (238439 inhabitants)
80 Km N of Siracusa (122291 inhabitants)
92 Km E of Caltanissetta (63360 inhabitants)
96 Km N of Ragusa (73313 inhabitants)
100 Km NE of Vittoria (63339 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 2021-01-11
05:52:10		 37.7523 15.0515 9 2021-07-12
16:54:55		 Bollettino Sismico Italiano INGV 86204901
Reviewed
Rev200 		ML 1.8 2021-01-11
05:52:09		 37.744 15.026 6 2021-03-02
14:42:03		 Sala Operativa INGV_OE (Catania) 86164461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-11 05:52:10 ± 0.08
Latitude 37.7523 ± 0.0054
Longitude 15.0515 ± 0.0068
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86204901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 628
Semi-minor axis of confidence ellipse (meter) 510
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 299
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 0.76083
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:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 86164461
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-01-11 06:04:10

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 86204901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-12 14:10:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2021-01-11T05:52:30.69 0.3 undecidable manual S 178 65.9895 50 -0.21 65
IV.MPNC.HHZ. 2021-01-11T05:52:26.53 0.6 undecidable manual S 31 51.0156 50 -0.38 43
IV.RAFF.HHZ. 2021-01-11T05:52:25.27 0.3 undecidable manual P 226 84.4488 50 0.18 62
IV.SSY.HHZ. 2021-01-11T05:52:22.33 0.3 undecidable manual P 178 65.9895 50 0.08 66
IV.AIO.HHZ. 2021-01-11T05:52:21.55 0.3 undecidable manual S 33 29.0487 108 0.56 63
IV.MSFR.HHZ. 2021-01-11T05:52:20.48 0.3 undecidable manual P 308 50.9157 50 0.55 60
IV.MPNC.HHZ. 2021-01-11T05:52:19.80 0.3 undecidable manual P 31 51.0156 50 -0.14 68
IV.GALF.HNZ. 2021-01-11T05:52:19.34 0.3 undecidable manual P 264 42.8238 50 0.67 58
IV.EPZF.HHZ. 2021-01-11T05:52:18.55 0.3 undecidable manual S 295 18.7701 116 0.85 57
IV.MUCR.HHZ. 2021-01-11T05:52:17.27 0.1 positive manual P 334 35.8419 50 -0.32 89
IV.ECTS.HHZ. 2021-01-11T05:52:16.68 0.3 undecidable manual S 23 15.5733 121 -0.05 73
IV.AIO.HHZ. 2021-01-11T05:52:16.26 0.3 undecidable manual P 33 29.0487 108 -0.27 68
IV.ESML.HHZ. 2021-01-11T05:52:15.03 0.3 undecidable manual P 225 21.2676 114 -0.04 72
IV.EMSG.HHZ. 2021-01-11T05:52:15.61 0.3 undecidable manual S 310 11.6772 128 0 74
IV.EPZF.HHZ. 2021-01-11T05:52:14.21 0.1 undecidable manual P 295 18.7701 116 -0.42 89
IV.ECBD.HHZ. 2021-01-11T05:52:14.43 0.1 undecidable manual S 45 4.3956 155 0.45 92
IV.EPOZ.HNZ. 2021-01-11T05:52:14.52 0.3 undecidable manual P 127 14.9739 122 0.56 65
IV.EMSG.HHZ. 2021-01-11T05:52:13.21 0.1 negative manual P 310 11.6772 128 -0.21 95
IV.EFIU.HHZ. 2021-01-11T05:52:13.95 0.3 undecidable manual P 73 14.4744 123 0.07 73
IV.ECHR.HNZ. 2021-01-11T05:52:13.69 0.1 undecidable manual P 239 14.1747 123 -0.14 96
IV.ECTS.HHZ. 2021-01-11T05:52:13.71 0.1 undecidable manual P 23 15.5733 121 -0.35 91
IV.EVRN.HHZ. 2021-01-11T05:52:13.10 0.1 undecidable manual P 134 10.1787 132 -0.09 97
IV.ENIC.HHZ. 2021-01-11T05:52:13.97 0.3 undecidable manual P 191 13.6752 124 0.23 71
IV.ESLN.HHZ. 2021-01-11T05:52:12.51 0.1 undecidable manual P 226 9.3795 135 -0.56 87
IV.ECBD.HHZ. 2021-01-11T05:52:12.50 0.1 positive manual P 45 4.3956 155 0.02 100
IV.ECNE.HHZ. 2021-01-11T05:52:12.31 0.3 undecidable manual P 288 4.5954 154 -0.19 72
IV.EPIT.HHZ. 2021-01-11T05:52:12.64 0.3 undecidable manual P 4 6.5934 145 -0.06 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHE. ML:2.4 0.00337 0.36 AML other m 2021-01-11T05:52:16.26
IV.EMSG.HHN. ML:2.5 0.0036950000000000004 0.88 AML other m 2021-01-11T05:52:16.59
IV.ENIC.HHE. ML:2.5 0.003335 0.9 AML other m 2021-01-11T05:52:16.28
IV.ENIC.HNE. ML:2.6 0.00379 0.88 AML other m 2021-01-11T05:52:16.29
IV.ECTS.HHE. ML:1.7 0.0005115 1.12 AML other m 2021-01-11T05:52:16.97
IV.ECTS.HHN. ML:1.9 0.000797 0.9 AML other m 2021-01-11T05:52:17.68
IV.EVRN.HNE. ML:2.2 0.00217 1.62 AML other m 2021-01-11T05:52:18.06
IV.EVRN.HHN. ML:2.3 0.00287 1.38 AML other m 2021-01-11T05:52:19.28
IV.EVRN.HNN. ML:2.3 0.002845 1.36 AML other m 2021-01-11T05:52:19.29
IV.EVRN.HHE. ML:2.2 0.0021799999999999996 0.16 AML other m 2021-01-11T05:52:19.31
IV.ENIC.HHN. ML:2.4 0.0026950000000000003 0.88 AML other m 2021-01-11T05:52:19.88
IV.ENIC.HNN. ML:2.6 0.00422 1.32 AML other m 2021-01-11T05:52:19.33
IV.ESML.HHE. ML:2.0 0.0006984999999999999 0.28 AML other m 2021-01-11T05:52:20.24
IV.EPZF.HHE. ML:2.3 0.00155 0.32 AML other m 2021-01-11T05:52:20.42
IV.ESML.HHN. ML:1.9 0.0005865 0.66 AML other m 2021-01-11T05:52:20.46
IV.EPZF.HHN. ML:2.2 0.0012749999999999999 0.46 AML other m 2021-01-11T05:52:20.79
IV.AIO.HHE. ML:1.7 0.0002545 0.58 AML other m 2021-01-11T05:52:23.80
IV.AIO.HHN. ML:1.8 0.0003185 0.4 AML other m 2021-01-11T05:52:23.54
IV.MUCR.HHE. ML:1.6 0.00014749999999999998 1.5 AML other m 2021-01-11T05:52:26.12
IV.MUCR.HHN. ML:1.6 0.000176 0.42 AML other m 2021-01-11T05:52:26.68
IV.MPNC.HHN. ML:1.9 0.00022250000000000001 0.58 AML other m 2021-01-11T05:52:29.20
IV.MPNC.HHE. ML:2.0 0.00023099999999999998 0.86 AML other m 2021-01-11T05:52:30.58
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