Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 12-12-2020 and time 06:13:16 (Italy) in region 2 km E Fiumefreddo di Sicilia (CT)

A magnitude ML 1.6 earthquake occured in region: 2 km E Fiumefreddo di Sicilia (CT), on

  • 12-12-2020 05:13:16 (UTC)
  • 12-12-2020 06:13:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7900, 15.2300 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
Fiumefreddo di Sicilia CT 2 9623 9623
Calatabiano CT 4 5308 14931
Mascali CT 5 14282 29213
Piedimonte Etneo CT 5 3963 33176
Riposto CT 7 14838 48014
Giardini-Naxos ME 7 9415 57429
Giarre CT 8 27659 85088
Gaggi ME 8 3184 88272
Taormina ME 8 10960 99232
Castelmola ME 9 1088 100320
Sant'Alfio CT 9 1582 101902
Linguaglossa CT 9 5403 107305
Graniti ME 11 1492 108797
Letojanni ME 12 2861 111658
Milo CT 12 1087 112745
Motta Camastra ME 13 845 113590
Mongiuffi Melia ME 13 600 114190
Gallodoro ME 14 367 114557
Santa Venerina CT 14 8592 123149
Castiglione di Sicilia CT 14 3215 126364
Francavilla di Sicilia ME 15 3945 130309
Zafferana Etnea CT 15 9517 139826
Roccafiorita ME 16 197 140023
Forza d'Agrò ME 17 911 140934
Limina ME 17 836 141770
Sant'Alessio Siculo ME 18 1554 143324
Moio Alcantara ME 20 717 144041

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km N of Acireale (52622 inhabitants)
34 Km NE of Catania (314555 inhabitants)
51 Km SW of Reggio di Calabria (183035 inhabitants)
53 Km SW of Messina (238439 inhabitants)
81 Km N of Siracusa (122291 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 1.6 2020-12-12
05:13:16		 37.7902 15.2295 8 2021-02-26
14:56:19		 Bollettino Sismico Italiano INGV 87177451
Reviewed
Rev200 		ML 1.6 2020-12-12
05:13:15		 37.794 15.207 10 2021-02-22
15:25:07		 Sala Operativa INGV_OE (Catania) 85369281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-12 05:13:16 ± 0.19
Latitude 37.7902 ± 0.0054
Longitude 15.2295 ± 0.0125
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 87177451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1072
Semi-minor axis of confidence ellipse (meter) 301
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 98
Circular confidence region, given by single value of horizontal uncertainty (meter) 1070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 194
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.01529
Epicentral distance of station farthest from the epicenter (degree) 0.37772
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 87177451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-22 15:24:02

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 85369281
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-12-12 05:30:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EPZF.HHZ. 2020-12-12T05:13:29.31 0.6 undecidable manual S 277 32.8449 104 1.26 31
IV.MUCR.HHZ. 2020-12-12T05:13:24.31 0.3 undecidable manual P 312 41.9247 50 -0.28 71
IV.EPZF.HHZ. 2020-12-12T05:13:23.10 0.3 undecidable manual P 277 32.8449 104 0.01 72
IV.AIO.HHZ. 2020-12-12T05:13:23.93 0.6 undecidable manual S 1 20.0688 112 0.12 49
IV.EPOZ.HHZ. 2020-12-12T05:13:22.41 0.6 undecidable manual S 195 13.5753 120 0.63 44
IV.EPIT.HHZ. 2020-12-12T05:13:22.56 0.6 undecidable manual S 279 15.3735 117 0.26 49
IV.EVRN.HHZ. 2020-12-12T05:13:21.18 0.6 undecidable manual S 216 13.875 120 -0.69 42
IV.ECTS.HHZ. 2020-12-12T05:13:21.85 0.6 undecidable manual S 317 13.9749 120 -0.03 49
IV.EMSG.HHZ. 2020-12-12T05:13:21.57 0.3 undecidable manual P 278 24.753 108 0.05 74
IV.ECBD.HHZ. 2020-12-12T05:13:21.60 0.6 undecidable manual S 265 12.5763 122 0.12 51
IV.ENIC.HHZ. 2020-12-12T05:13:21.95 0.6 undecidable manual P 226 25.3524 107 0.31 46
IV.AIO.HHZ. 2020-12-12T05:13:20.86 0.1 undecidable manual P 1 20.0688 112 0.22 95
IV.EMCN.HHZ. 2020-12-12T05:13:20.11 0.3 undecidable manual P 270 17.1717 115 0 76
IV.EFIU.HHE. 2020-12-12T05:13:19.61 0.6 undecidable manual S 268 1.6983 168 0.48 49
IV.EVRN.HHZ. 2020-12-12T05:13:19.20 0.1 undecidable manual P 216 13.875 120 -0.32 96
IV.EPIT.HHZ. 2020-12-12T05:13:19.68 0.1 undecidable manual P 279 15.3735 117 -0.09 99
IV.ECTS.HHZ. 2020-12-12T05:13:19.23 0.1 undecidable manual P 317 13.9749 120 -0.3 95
IV.EPOZ.HHZ. 2020-12-12T05:13:19.64 0.1 undecidable manual P 195 13.5753 120 0.17 97
IV.ECBD.HHZ. 2020-12-12T05:13:18.98 0.1 undecidable manual P 265 12.5763 122 -0.31 95
IV.EFIU.HHE. 2020-12-12T05:13:17.81 0.1 undecidable manual P 268 1.6983 168 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ECTS.HHE. ML:1.5 0.00032478659999999996 0.3392 AML other m 2020-12-12T05:13:22.42
IV.EVRN.HNE. ML:1.9 0.00083103815 0.1888 AML other m 2020-12-12T05:13:22.78
IV.EVRN.HHE. ML:1.8 0.0007578015000000001 0.1792 AML other m 2020-12-12T05:13:22.77
IV.ECTS.HHN. ML:1.6 0.000383 0.2 AML other m 2020-12-12T05:13:23.00
IV.EPOZ.HHN. ML:1.8 0.0007934999999999999 0.42 AML other m 2020-12-12T05:13:24.30
IV.EPOZ.HHE. ML:1.6 0.00048023624999999996 0.4992 AML other m 2020-12-12T05:13:24.19
IV.EVRN.HHN. ML:1.9 0.0009152870000000001 0.1984 AML other m 2020-12-12T05:13:24.63
IV.EVRN.HNN. ML:1.9 0.00093997555 0.1792 AML other m 2020-12-12T05:13:24.63
IV.AIO.HHE. ML:1.3 0.000145978 0.2176 AML other m 2020-12-12T05:13:26.10
IV.AIO.HHN. ML:1.3 0.00013900000000000002 0.36 AML other m 2020-12-12T05:13:26.49
IV.EPZF.HHE. ML:1.6 0.00015773495 0.3424 AML other m 2020-12-12T05:13:29.58
IV.EPZF.HHN. ML:1.6 0.00018119114000000002 0.3392 AML other m 2020-12-12T05:13:29.62
IV.MUCR.HHN. ML:1.3 0.0000595525 0.3808 AML other m 2020-12-12T05:13:34.53
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