Earthquake with magnitude of ML 2.1 on date 11-12-2020 and time 13:41:12 (Italy) in region 11 km W Zafferana Etnea (CT)

A magnitude ML 2.1 earthquake occured in region: 11 km W Zafferana Etnea (CT), on

  • 11-12-2020 12:41:12 (UTC)
  • 11-12-2020 13:41:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.738, 14.993 at 6 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Zafferana Etnea CT 11 9517 9517
Milo CT 11 1087 10604
Ragalna CT 13 3924 14528
Sant'Alfio CT 13 1582 16110
Nicolosi CT 14 7463 23573
Santa Venerina CT 14 8592 32165
Pedara CT 15 14102 46267
Biancavilla CT 15 24007 70274
Bronte CT 15 19172 89446
Maletto CT 15 3920 93366
Trecastagni CT 15 10910 104276
Belpasso CT 16 28108 132384
Randazzo CT 16 10900 143284
Santa Maria di Licodia CT 16 7641 150925
Adrano CT 16 36122 187047
Viagrande CT 17 8563 195610
Giarre CT 17 27659 223269
Linguaglossa CT 18 5403 228672
Mascali CT 18 14282 242954
Piedimonte Etneo CT 18 3963 246917
Aci Bonaccorsi CT 19 3524 250441
San Pietro Clarenza CT 19 7743 258184
Riposto CT 19 14838 273022
Aci Sant'Antonio CT 19 17984 291006
Moio Alcantara ME 19 717 291723
Camporotondo Etneo CT 19 5023 296746
Mascalucia CT 19 31958 328704
Tremestieri Etneo CT 19 20589 349293
PaternĂ² CT 19 48228 397521
San Giovanni la Punta CT 20 23060 420581
Castiglione di Sicilia CT 20 3215 423796
Aci Catena CT 20 29851 453647
Santa Domenica Vittoria ME 20 980 454627

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Acireale (52622 inhabitants)
27 Km N of Catania (314555 inhabitants)
71 Km SW of Reggio di Calabria (183035 inhabitants)
71 Km SW of Messina (238439 inhabitants)
80 Km NW of Siracusa (122291 inhabitants)
86 Km E of Caltanissetta (63360 inhabitants)
93 Km N of Ragusa (73313 inhabitants)
96 Km NE of Vittoria (63339 inhabitants)
99 Km NE of Gela (75827 inhabitants)
100 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 2020-12-11
12:41:12
37.7377 14.9932 6 2021-02-26
14:56:17
Bollettino Sismico Italiano INGV 86831331
Reviewed
Rev200
ML 1.7 2020-12-11
12:41:11
37.738 14.991 4 2021-02-04
15:22:04
Sala Operativa INGV_OE (Catania) 85356841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-11 12:41:12 ± 0.07
Latitude 37.7377 ± 0.0027
Longitude 14.9932 ± 0.0034
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86831331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 83
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 289
Circular confidence region, given by single value of horizontal uncertainty (meter) 330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00809
Epicentral distance of station farthest from the epicenter (degree) 0.58276
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 86831331
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-04 15:21:46

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 85356841
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-12-11 12:59:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSY.HHZ. 2020-12-11T12:41:24.09 0.3 undecidable manual P 174 0.5828 50 0.06 67
IV.GALF.HHZ. 2020-12-11T12:41:19.63 0.3 undecidable manual P 266 0.3381 99 -0.01 71
IV.MUCR.HHZ. 2020-12-11T12:41:19.12 0.3 undecidable manual P 343 0.3193 100 -0.1 70
IV.AIO.HHZ. 2020-12-11T12:41:18.71 0.3 undecidable manual P 39 0.3004 101 -0.1 71
IV.EPZF.HHZ. 2020-12-11T12:41:17.80 0.6 undecidable manual S 309 0.1376 112 0.05 49
IV.EVRN.HHZ. 2020-12-11T12:41:17.39 0.6 undecidable manual S 113 0.1223 115 0.18 48
IV.EPOZ.HHZ. 2020-12-11T12:41:16.45 0.3 undecidable manual P 113 0.1682 109 0.5 67
IV.EPIT.HHN. 2020-12-11T12:41:16.03 0.6 undecidable manual S 34 0.089 122 -0.04 50
IV.EMSG.HHZ. 2020-12-11T12:41:16.24 0.6 undecidable manual S 338 0.0899 122 0.14 49
IV.EMCN.HHZ. 2020-12-11T12:41:15.54 0.6 undecidable manual S 31 0.0621 132 0.29 47
IV.EPZF.HHZ. 2020-12-11T12:41:15.19 0.1 positive manual P 309 0.1376 112 -0.13 97
IV.ESML.HHZ. 2020-12-11T12:41:15.61 0.3 undecidable manual P 217 0.1493 111 0.04 74
IV.ECBD.HHN. 2020-12-11T12:41:15.28 0.6 undecidable manual S 60 0.0854 123 -0.66 42
IV.EMSG.HHZ. 2020-12-11T12:41:14.56 0.1 positive manual P 338 0.0899 122 0.19 96
IV.ESLN.HHZ. 2020-12-11T12:41:14.92 0.6 undecidable manual S 198 0.0468 140 0.09 50
IV.ECBD.HHN. 2020-12-11T12:41:14.27 0.1 undecidable manual P 60 0.0854 123 -0.01 100
IV.EVRN.HHZ. 2020-12-11T12:41:14.80 0.3 undecidable manual P 113 0.1223 115 -0.21 71
IV.ENIC.HNZ. 2020-12-11T12:41:14.63 0.3 undecidable manual P 168 0.1088 117 -0.1 73
IV.EPIT.HHN. 2020-12-11T12:41:14.53 0.1 undecidable manual P 34 0.089 122 0.18 97
IV.ECHR.HHE. 2020-12-11T12:41:14.17 0.1 undecidable manual P 231 0.0818 125 -0.05 99
IV.ECPN.HHZ. 2020-12-11T12:41:14.35 0.6 undecidable manual S 319 0.0081 172 0.15 49
IV.ECPN.HHZ. 2020-12-11T12:41:13.14 0.3 undecidable manual P 319 0.0081 172 -0.14 74
IV.ESLN.HHZ. 2020-12-11T12:41:13.49 0.1 positive manual P 198 0.0468 140 -0.15 98
IV.EMCN.HHZ. 2020-12-11T12:41:13.76 0.1 undecidable manual P 31 0.0621 132 -0.12 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHE. ML:2.2 0.00278 0.82 AML other m 2020-12-11T12:41:17.63
IV.EMSG.HHN. ML:2.4 0.00369 0.64 AML other m 2020-12-11T12:41:18.37
IV.ENIC.HHN. ML:2.3 0.0027 0.16 AML other m 2020-12-11T12:41:18.50
IV.EVRN.HHE. ML:2 0.0013 1.2 AML other m 2020-12-11T12:41:19.13
IV.EPZF.HHN. ML:2.2 0.001635 0.32 AML other m 2020-12-11T12:41:20.00
IV.EVRN.HHN. ML:2.1 0.001475 0.18 AML other m 2020-12-11T12:41:20.61
IV.EVRN.HNN. ML:2.1 0.00164 1 AML other m 2020-12-11T12:41:20.61
IV.ESML.HHN. ML:2 0.0011165 0.6 AML other m 2020-12-11T12:41:20.37
IV.ENIC.HNE. ML:2.3 0.00292 0.18 AML other m 2020-12-11T12:41:21.19
IV.ENIC.HHE. ML:2.3 0.002455 0.18 AML other m 2020-12-11T12:41:21.18
IV.EPOZ.HHN. ML:2 0.0008535 0.66 AML other m 2020-12-11T12:41:21.00
IV.EPOZ.HHE. ML:2.1 0.001238 0.74 AML other m 2020-12-11T12:41:21.71
IV.ENIC.HNN. ML:2.3 0.002515 0.26 AML other m 2020-12-11T12:41:21.83
IV.EPZF.HHE. ML:2.1 0.0013 1.68 AML other m 2020-12-11T12:41:22.87
IV.EVRN.HNE. ML:2 0.00126 0.8 AML other m 2020-12-11T12:41:22.03
IV.AIO.HHN. ML:1.5 0.0001485 1.52 AML other m 2020-12-11T12:41:25.88
IV.ESML.HHE. ML:2.1 0.001325 0.56 AML other m 2020-12-11T12:41:25.07
IV.MUCR.HHE. ML:2 0.0004205 1.66 AML other m 2020-12-11T12:41:26.92
IV.AIO.HHE. ML:1.5 0.0001375 1.02 AML other m 2020-12-11T12:41:26.55
IV.GALF.HHN. ML:2.5 0.001335 0.54 AML other m 2020-12-11T12:41:28.60
IV.MUCR.HHN. ML:1.8 0.00027 0.38 AML other m 2020-12-11T12:41:29.23
IV.GALF.HHE. ML:2.4 0.00105 1.58 AML other m 2020-12-11T12:41:31.86
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