Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 27-12-2019 and time 22:01:37 (Italy) in region 11 km W Zafferana Etnea (CT)

A magnitude ML 1.4 earthquake occured in region: 11 km W Zafferana Etnea (CT), on

  • 27-12-2019 21:01:37 (UTC)
  • 27-12-2019 22:01:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7360, 14.9900 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
Zafferana Etnea CT 11 9517 9517
Milo CT 11 1087 10604
Ragalna CT 12 3924 14528
Sant'Alfio CT 14 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
Santa Maria di Licodia CT 16 7641 111917
Adrano CT 16 36122 148039
Belpasso CT 16 28108 176147
Randazzo CT 16 10900 187047
Viagrande CT 17 8563 195610
Giarre CT 17 27659 223269
Linguaglossa CT 18 5403 228672
San Pietro Clarenza CT 18 7743 236415
Mascali CT 18 14282 250697
Aci Bonaccorsi CT 19 3524 254221
Piedimonte Etneo CT 19 3963 258184
Camporotondo Etneo CT 19 5023 263207
Aci Sant'Antonio CT 19 17984 281191
Mascalucia CT 19 31958 313149
Riposto CT 19 14838 327987
Moio Alcantara ME 19 717 328704
Paternò CT 19 48228 376932
Tremestieri Etneo CT 19 20589 397521
San Giovanni la Punta CT 20 23060 420581
Aci Catena CT 20 29851 450432

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Acireale (52622 inhabitants)
27 Km NW 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)
99 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 1.4 2019-12-27
21:01:37		 37.7357 14.9897 9 2020-02-28
16:42:28		 Bollettino Sismico Italiano INGV 76802401
Reviewed
Rev200 		ML 1.1 2019-12-27
21:01:36		 37.726 15.013 2 2019-12-27
21:24:22		 Sala Operativa INGV-OE (Catania) 75024381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-27 21:01:37 ± 0.17
Latitude 37.7357 ± 0.0081
Longitude 14.9897 ± 0.0114
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 76802401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 778
Semi-minor axis of confidence ellipse (meter) 688
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 115
Circular confidence region, given by single value of horizontal uncertainty (meter) 870.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.04407
Epicentral distance of station farthest from the epicenter (degree) 0.58186
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 76802401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-25 14:50:22

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 75024381
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2019-12-27 21:24:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHN. 2019-12-27T21:01:49.04 0.6 undecidable manual P 173 64.5909 50 0.12 44
IV.EPOZ.HHE. 2019-12-27T21:01:45.59 0.6 undecidable manual S 112 18.87 114 1.19 33
IV.AIO.HHE. 2019-12-27T21:01:44.03 0.3 undecidable manual P 39 33.744 50 -0.13 70
IV.MUCR.HHE. 2019-12-27T21:01:44.60 1.0 undecidable manual P 343 35.5422 50 0.15 23
IV.EMSG.HHN. 2019-12-27T21:01:42.29 0.6 undecidable manual S 340 10.0788 130 0.48 45
IV.ECHR.HHE. 2019-12-27T21:01:42.05 0.6 undecidable manual S 231 8.6802 135 0.59 44
IV.EPOZ.HHE. 2019-12-27T21:01:41.37 0.1 undecidable manual P 112 18.87 114 0 99
IV.EPZF.HHN. 2019-12-27T21:01:41.07 0.3 undecidable manual P 310 15.1737 119 0.35 69
IV.EMCN.HNE. 2019-12-27T21:01:40.96 0.6 undecidable manual S 32 7.2927 140 -0.16 49
IV.ESML.HHZ. 2019-12-27T21:01:40.95 0.3 undecidable manual P 217 16.2726 118 0.05 74
IV.ECHR.HHE. 2019-12-27T21:01:39.52 0.1 undecidable manual P 231 8.6802 135 -0.15 98
IV.EMSG.HHN. 2019-12-27T21:01:39.89 0.1 undecidable manual P 340 10.0788 130 0.02 100
IV.EMCN.HNE. 2019-12-27T21:01:39.03 0.3 undecidable manual P 32 7.2927 140 -0.44 69
IV.EPIT.HHN. 2019-12-27T21:01:39.89 0.1 undecidable manual P 35 10.2786 130 -0.01 100
IV.ESLN.HHN. 2019-12-27T21:01:38.44 0.1 undecidable manual P 196 4.8951 150 -0.76 82
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHN. ML:1.4 0.0003829646 0.5376 AML other m 2019-12-27T21:01:38.44
IV.EMSG.HHE. ML:1.6 0.0005451159 0.7168 AML other m 2019-12-27T21:01:39.83
IV.EPZF.HHN. ML:1.2 0.0001626783 0.656 AML other m 2019-12-27T21:01:39.94
IV.EPOZ.HHN. ML:1.4 0.000197043855 0.4352 AML other m 2019-12-27T21:01:45.55
IV.EPOZ.HHE. ML:1.4 0.0001865669375 0.3968 AML other m 2019-12-27T21:01:46.26
IV.GALF.HNE. ML:1.5 0.00012816605 0.9216 AML other m 2019-12-27T21:01:46.73
IV.ESML.HHN. ML:1.1 0.00013068671500000002 0.5632 AML other m 2019-12-27T21:01:49.18
IV.EPZF.HHE. ML:1.2 0.00016122715 0.768 AML other m 2019-12-27T21:01:50.60
IV.ESML.HHE. ML:1.1 0.00011803869 0.4224 AML other m 2019-12-27T21:01:51.32
IV.GALF.HHN. ML:1.4 0.00009683882500000001 0.5632 AML other m 2019-12-27T21:01:54.16
IV.GALF.HHE. ML:1.5 0.0001254841 1.36 AML other m 2019-12-27T21:01:56.06
IV.GALF.HNN. ML:1.6 0.00015692785 1.088 AML other m 2019-12-27T21:02:02.27
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