Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 27-01-2021 and time 16:32:06 (Italy) in region 5 km NW Milo (CT)

A magnitude ML 2.1 earthquake occured in region: 5 km NW Milo (CT), on

  • 27-01-2021 15:32:06 (UTC)
  • 27-01-2021 16:32:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7660, 15.0900 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 5 1087 1087
Sant'Alfio CT 5 1582 2669
Zafferana Etnea CT 8 9517 12186
Giarre CT 9 27659 39845
Piedimonte Etneo CT 9 3963 43808
Mascali CT 9 14282 58090
Santa Venerina CT 10 8592 66682
Linguaglossa CT 10 5403 72085
Riposto CT 11 14838 86923
Fiumefreddo di Sicilia CT 11 9623 96546
Castiglione di Sicilia CT 14 3215 99761
Calatabiano CT 14 5308 105069
Moio Alcantara ME 15 717 105786
Francavilla di Sicilia ME 16 3945 109731
Gaggi ME 16 3184 112915
Motta Camastra ME 16 845 113760
Trecastagni CT 16 10910 124670
Pedara CT 17 14102 138772
Viagrande CT 17 8563 147335
Malvagna ME 17 733 148068
Nicolosi CT 18 7463 155531
Randazzo CT 18 10900 166431
Aci Sant'Antonio CT 18 17984 184415
Acireale CT 18 52622 237037
Aci Catena CT 19 29851 266888
Graniti ME 19 1492 268380
Aci Bonaccorsi CT 19 3524 271904
Giardini-Naxos ME 19 9415 281319
Castelmola ME 20 1088 282407
Taormina ME 20 10960 293367
Ragalna CT 20 3924 297291
Roccella Valdemone ME 20 666 297957

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of Acireale (52622 inhabitants)
29 Km N of Catania (314555 inhabitants)
62 Km SW of Reggio di Calabria (183035 inhabitants)
63 Km SW of Messina (238439 inhabitants)
80 Km N of Siracusa (122291 inhabitants)
95 Km E of Caltanissetta (63360 inhabitants)
99 Km NE 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 2.1 2021-01-27
15:32:06		 37.7657 15.0895 9 2021-07-12
16:54:58		 Bollettino Sismico Italiano INGV 87080431
Reviewed
Rev200 		ML 1.9 2021-01-27
15:32:06		 37.76 15.072 5 2021-03-11
13:10:07		 Sala Operativa INGV_OE (Catania) 86633401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-27 15:32:06 ± 0.12
Latitude 37.7657 ± 0.0045
Longitude 15.0895 ± 0.0057
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 87080431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 528
Semi-minor axis of confidence ellipse (meter) 193
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 279
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.01439
Epicentral distance of station farthest from the epicenter (degree) 0.32466
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 87080431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-11 13:09:51

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 86633401
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-01-27 15:50:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2021-01-27T15:32:14.03 0.1 undecidable manual P 329 36.0417 50 0.06 94
IV.NOV.HHZ. 2021-01-27T15:32:12.79 0.3 undecidable manual P 8 29.3484 106 0.01 72
IV.ECTS.HHZ. 2021-01-27T15:32:12.03 0.6 undecidable manual S 12 13.1757 123 -0.06 49
IV.AIO.HHZ. 2021-01-27T15:32:12.12 0.1 undecidable manual P 29 26.0517 108 -0.02 97
IV.EMSG.HHZ. 2021-01-27T15:32:12.74 0.6 undecidable manual S 297 13.6752 122 0.5 44
IV.ESLN.HHZ. 2021-01-27T15:32:11.98 0.3 undecidable manual S 232 12.876 123 -0.02 74
IV.ECNE.HHN. 2021-01-27T15:32:11.52 0.6 undecidable manual S 270 7.6812 138 0.9 38
IV.EVRN.HNZ. 2021-01-27T15:32:11.91 0.6 undecidable manual S 154 9.3795 132 0.87 39
IV.EPZF.HHZ. 2021-01-27T15:32:11.26 0.1 undecidable manual P 288 21.3675 112 0 98
IV.ECZM.HHN. 2021-01-27T15:32:10.91 0.3 undecidable manual P 257 16.6722 117 0.5 66
IV.EMCN.HNZ. 2021-01-27T15:32:10.20 0.1 undecidable manual S 300 5.6943 146 0.02 100
IV.ESPC.HHN. 2021-01-27T15:32:10.85 0.6 undecidable manual S 214 9.7791 131 -0.29 47
IV.ESVO.HHE. 2021-01-27T15:32:10.07 0.3 undecidable manual P 274 12.4764 124 0.39 69
IV.ENIC.HHE. 2021-01-27T15:32:10.61 0.3 undecidable manual P 202 16.0728 118 0.32 69
IV.EPIT.HHN. 2021-01-27T15:32:10.63 0.3 undecidable manual S 330 5.7942 145 0.42 69
IV.ESAL.HHE. 2021-01-27T15:32:10.37 0.3 undecidable manual S 107 4.0959 154 0.46 69
IV.EPOZ.HHZ. 2021-01-27T15:32:10.55 0.3 undecidable manual P 140 13.5753 122 0.69 62
IV.EMPL.HHZ. 2021-01-27T15:32:09.67 0.3 undecidable manual P 227 14.1747 121 -0.29 70
IV.ECTS.HHZ. 2021-01-27T15:32:09.58 0.1 undecidable manual P 12 13.1757 123 -0.22 95
IV.EMFO.HHE. 2021-01-27T15:32:09.52 0.6 undecidable manual S 179 3.2967 158 -0.29 47
IV.ESLN.HHZ. 2021-01-27T15:32:09.33 0.1 undecidable manual P 232 12.876 123 -0.42 91
IV.EFIU.HHE. 2021-01-27T15:32:09.55 0.3 undecidable manual P 76 10.878 128 0.13 73
IV.EMSG.HHZ. 2021-01-27T15:32:09.94 0.1 undecidable manual P 297 13.6752 122 0.06 98
IV.ECBD.HHN. 2021-01-27T15:32:09.29 0.3 undecidable manual S 351 1.5984 169 -0.35 70
IV.EVRN.HNZ. 2021-01-27T15:32:09.26 0.1 positive manual P 154 9.3795 132 0.07 98
IV.EPIT.HHN. 2021-01-27T15:32:08.63 0.1 undecidable manual P 330 5.7942 145 -0.08 99
IV.EMFO.HHE. 2021-01-27T15:32:08.07 0.1 undecidable manual P 179 3.2967 158 -0.4 93
IV.ESAL.HHE. 2021-01-27T15:32:08.39 0.1 undecidable manual P 107 4.0959 154 -0.15 98
IV.EMFS.HHE. 2021-01-27T15:32:08.97 0.1 undecidable manual P 238 9.4794 132 -0.24 95
IV.ECNE.HHN. 2021-01-27T15:32:08.97 0.3 undecidable manual P 270 7.6812 138 0.03 75
IV.EMCN.HNZ. 2021-01-27T15:32:08.53 0.1 undecidable manual P 300 5.6943 146 -0.16 97
IV.ESPC.HHN. 2021-01-27T15:32:08.92 0.1 undecidable manual P 214 9.7791 131 -0.32 93
IV.EMNR.HHZ. 2021-01-27T15:32:08.99 0.1 undecidable manual P 316 7.9809 137 0.01 100
IV.ECBD.HHN. 2021-01-27T15:32:07.92 0.1 undecidable manual P 351 1.5984 169 -0.46 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ECTS.HHE. ML:1.8 0.0007725 0.64 AML other m 2021-01-27T15:32:12.53
IV.EVRN.HNN. ML:2.5 0.004640000000000001 0.22 AML other m 2021-01-27T15:32:13.04
IV.EVRN.HHN. ML:2.5 0.00432 0.22 AML other m 2021-01-27T15:32:13.04
IV.EVRN.HHE. ML:2.5 0.004225 0.34 AML other m 2021-01-27T15:32:13.32
IV.ECTS.HHN. ML:1.7 0.0005865 0.98 AML other m 2021-01-27T15:32:13.86
IV.EVRN.HNE. ML:2.4 0.003945 0.18 AML other m 2021-01-27T15:32:13.72
IV.EPOZ.HHN. ML:2.4 0.0028399999999999996 1.02 AML other m 2021-01-27T15:32:16.26
IV.EPOZ.HHE. ML:2.2 0.001965 0.44 AML other m 2021-01-27T15:32:16.41
IV.AIO.HHE. ML:1.7 0.0002855 0.3 AML other m 2021-01-27T15:32:17.40
IV.NOV.HHE. ML:2.2 0.0007790000000000001 0.48 AML other m 2021-01-27T15:32:18.75
IV.AIO.HHN. ML:1.7 0.00031800000000000003 0.38 AML other m 2021-01-27T15:32:19.56
IV.NOV.HHN. ML:2.1 0.0006915000000000001 0.52 AML other m 2021-01-27T15:32:19.57
IV.MUCR.HHE. ML:1.6 0.00017649999999999998 0.5 AML other m 2021-01-27T15:32:20.47
IV.MUCR.HHN. ML:1.6 0.0001675 0.46 AML other m 2021-01-27T15:32:26.26
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