Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 14-12-2017 and time 10:11:23 (Italy) in region 10 km W Zafferana Etnea (CT)

A magnitude ML 1.9 earthquake occured in region: 10 km W Zafferana Etnea (CT), on

  • 14-12-2017 09:11:23 (UTC)
  • 14-12-2017 10:11:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7370, 15.0010 at 4 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 10 9517 9517
Milo CT 10 1087 10604
Sant'Alfio CT 13 1582 12186
Ragalna CT 13 3924 16110
Santa Venerina CT 13 8592 24702
Nicolosi CT 14 7463 32165
Pedara CT 14 14102 46267
Trecastagni CT 15 10910 57177
Biancavilla CT 16 24007 81184
Maletto CT 16 3920 85104
Bronte CT 16 19172 104276
Belpasso CT 16 28108 132384
Giarre CT 16 27659 160043
Viagrande CT 16 8563 168606
Randazzo CT 17 10900 179506
Santa Maria di Licodia CT 17 7641 187147
Adrano CT 17 36122 223269
Linguaglossa CT 17 5403 228672
Mascali CT 17 14282 242954
Piedimonte Etneo CT 18 3963 246917
Riposto CT 18 14838 261755
Aci Bonaccorsi CT 18 3524 265279
Aci Sant'Antonio CT 18 17984 283263
San Pietro Clarenza CT 18 7743 291006
Camporotondo Etneo CT 19 5023 296029
Moio Alcantara ME 19 717 296746
Mascalucia CT 19 31958 328704
Tremestieri Etneo CT 19 20589 349293
Aci Catena CT 19 29851 379144
Fiumefreddo di Sicilia CT 19 9623 388767
San Giovanni la Punta CT 20 23060 411827
Paternò CT 20 48228 460055
Castiglione di Sicilia CT 20 3215 463270

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Acireale (52622 inhabitants)
27 Km N of Catania (314555 inhabitants)
70 Km SW of Reggio di Calabria (183035 inhabitants)
71 Km SW of Messina (238439 inhabitants)
80 Km NW of Siracusa (122291 inhabitants)
87 Km E of Caltanissetta (63360 inhabitants)
93 Km N of Ragusa (73313 inhabitants)
97 Km NE of Vittoria (63339 inhabitants)
100 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 1.9 2017-12-14
09:11:23		 37.7368 15.0007 4 2018-09-04
09:10:40		 Bollettino Sismico Italiano INGV 53139631
Reviewed
Rev100 		ML 2.0 2017-12-14
09:11:23		 37.7355 15.0067 1 2017-12-14
09:28:20		 Sala Sismica INGV-Roma 52586481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-12-14 09:11:23 ± 0.13
Latitude 37.7368 ± 0.0063
Longitude 15.0007 ± 0.0091
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 53139631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 800
Semi-minor axis of confidence ellipse (meter) 202
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) 800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.89662
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 53139631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-06-19 10:11:59

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 52586481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-12-14 09:28:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SOI.EHN. 2017-12-14T09:11:41.61 1.0 undecidable manual P 68 99.5226 50 0.15 21
IV.CSLB.HHZ. 2017-12-14T09:11:40.15 1.0 undecidable manual P 285 85.5477 50 0.84 18
IV.RAFF.HHZ. 2017-12-14T09:11:38.20 0.3 undecidable manual P 225 80.0643 50 -0.27 65
IV.MUCR.HHZ. 2017-12-14T09:11:36.74 0.6 undecidable manual S 342 35.742 96 0.55 44
IV.MSFR.HHZ. 2017-12-14T09:11:33.47 0.3 undecidable manual P 313 48.7179 94 -0.04 72
IV.EPOZ.HHZ. 2017-12-14T09:11:31.44 0.6 undecidable manual S 114 17.9709 101 1.35 31
IV.GALF.HHZ. 2017-12-14T09:11:31.69 0.3 undecidable manual P 266 38.2284 95 0.27 70
IV.MUCR.HHZ. 2017-12-14T09:11:30.70 0.3 undecidable manual P 342 35.742 96 -0.23 71
IV.NOV.HHZ. 2017-12-14T09:11:30.43 0.3 undecidable manual P 20 34.4433 96 -0.23 71
IV.ESML.HHZ. 2017-12-14T09:11:30.41 0.6 undecidable manual S 219 16.9719 102 0.68 43
IV.AIO.HHZ. 2017-12-14T09:11:30.00 0.3 undecidable manual P 38 33.0447 96 -0.39 69
IV.EPOZ.HHZ. 2017-12-14T09:11:27.29 0.1 undecidable manual P 114 17.9709 101 -0.12 100
IV.EPZF.HHZ. 2017-12-14T09:11:26.96 0.3 undecidable manual P 308 15.873 102 -0.03 77
IV.EMSG.HHZ. 2017-12-14T09:11:26.13 0.1 undecidable manual P 334 10.2786 109 0.21 99
IV.ESML.HHZ. 2017-12-14T09:11:26.89 0.3 undecidable manual P 219 16.9719 102 -0.31 72
IV.ESLN.HHZ. 2017-12-14T09:11:25.85 0.6 undecidable manual S 206 5.2947 123 -0.09 51
IV.ESLN.HHZ. 2017-12-14T09:11:24.66 0.1 undecidable manual P 206 5.2947 123 -0.35 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHN. ML:2.0 0.0016294415 0.2752 AML other m 2017-12-14T09:11:31.43
IV.ESML.HHN. ML:2.2 0.001497521 0.3776 AML other m 2017-12-14T09:11:31.82
IV.EPOZ.HHN. ML:2.2 0.0015027641 0.416 AML other m 2017-12-14T09:11:31.78
IV.ESML.HHE. ML:2.2 0.0015622032000000001 0.3584 AML other m 2017-12-14T09:11:32.23
IV.EMSG.HHE. ML:2.0 0.0019159245 0.2048 AML other m 2017-12-14T09:11:32.50
IV.EPOZ.HHE. ML:2.3 0.0017649999999999999 0.58 AML other m 2017-12-14T09:11:32.51
IV.EPZF.HHE. ML:2.0 0.0012220680000000002 0.3008 AML other m 2017-12-14T09:11:34.26
IV.EPZF.HHN. ML:2.0 0.0009833029499999998 0.3008 AML other m 2017-12-14T09:11:34.83
IV.NOV.HHE. ML:1.8 0.00023999999999999998 1.38 AML other m 2017-12-14T09:11:36.22
IV.MUCR.HHE. ML:1.8 0.0002717255 0.4032 AML other m 2017-12-14T09:11:37.47
IV.NOV.HHN. ML:1.7 0.0002235962 0.2624 AML other m 2017-12-14T09:11:37.98
IV.AIO.HHE. ML:1.6 0.000170834 0.384 AML other m 2017-12-14T09:11:38.64
IV.AIO.HHN. ML:1.6 0.0001735 0.5 AML other m 2017-12-14T09:11:38.43
IV.MUCR.HHN. ML:1.7 0.00018980415 0.4416 AML other m 2017-12-14T09:11:41.21
IV.GALF.HHN. ML:2.0 0.000389 1.56 AML other m 2017-12-14T09:11:43.96
IV.GALF.HHE. ML:2.0 0.0004115 0.42 AML other m 2017-12-14T09:11:44.68
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
Waveforms Seismic signals in miniseed + resp format Download