Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 03-10-2016 and time 19:33:02 (Italy) in region 1 km N Sant'Alfio (CT)

A magnitude ML 2.4 earthquake occured in region: 1 km N Sant'Alfio (CT), on

  • 03-10-2016 17:33:02 (UTC)
  • 03-10-2016 19:33:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7550, 15.1410 at 10 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
Sant'Alfio CT 1 1582 1582
Milo CT 4 1087 2669
Giarre CT 5 27659 30328
Mascali CT 5 14282 44610
Riposto CT 6 14838 59448
Piedimonte Etneo CT 7 3963 63411
Zafferana Etnea CT 7 9517 72928
Fiumefreddo di Sicilia CT 7 9623 82551
Santa Venerina CT 8 8592 91143
Linguaglossa CT 10 5403 96546
Calatabiano CT 11 5308 101854
Gaggi ME 14 3184 105038
Castiglione di Sicilia CT 14 3215 108253
Giardini-Naxos ME 15 9415 117668
Motta Camastra ME 16 845 118513
Acireale CT 16 52622 171135
Trecastagni CT 16 10910 182045
Francavilla di Sicilia ME 16 3945 185990
Viagrande CT 16 8563 194553
Aci Sant'Antonio CT 17 17984 212537
Taormina ME 17 10960 223497
Castelmola ME 17 1088 224585
Aci Catena CT 17 29851 254436
Pedara CT 17 14102 268538
Graniti ME 17 1492 270030
Aci Bonaccorsi CT 18 3524 273554
Moio Alcantara ME 18 717 274271
Nicolosi CT 19 7463 281734
Valverde CT 20 7840 289574
Malvagna ME 20 733 290307

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km N of Acireale (52622 inhabitants)
28 Km N of Catania (314555 inhabitants)
59 Km SW of Reggio di Calabria (183035 inhabitants)
61 Km SW of Messina (238439 inhabitants)
78 Km N of Siracusa (122291 inhabitants)
99 Km NE of Ragusa (73313 inhabitants)
99 Km E of Caltanissetta (63360 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 2.4 2016-10-03
17:33:02		 37.7553 15.1408 10 2017-05-29
13:48:06		 Bollettino Sismico Italiano INGV 45963661
Reviewed
Rev200 		ML 2.6 2016-10-03
17:33:00		 37.761 15.116 7 2016-10-03
17:48:44		 Sala Operativa INGV-OE (Catania) 29811511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-03 17:33:02 ± 0.11
Latitude 37.7553 ± 0.0063
Longitude 15.1408 ± 0.0102
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 45963661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 955
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 293
Circular confidence region, given by single value of horizontal uncertainty (meter) 960.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.09173
Epicentral distance of station farthest from the epicenter (degree) 0.84536
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.6

Field Value
Value 2.6
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 29811511
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2016-10-03 17:48:44

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 45963661
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-06-09 07:26:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2016-10-03T17:33:23.46 0.3 undecidable manual S 185 66.5778 50 0.58 60
IV.PLLN.EHZ. 2016-10-03T17:33:19.36 0.3 undecidable manual P 287 91.242 50 1.38 40
IV.HLNI.HHZ. 2016-10-03T17:33:18.34 0.3 undecidable manual S 208 50.9157 50 -0.37 66
IV.HMDC.HHZ. 2016-10-03T17:33:18.62 0.3 undecidable manual P 200 93.8394 50 0.24 62
IV.RAFF.HHZ. 2016-10-03T17:33:18.00 0.3 undecidable manual P 229 90.4428 50 0.13 64
IV.HAVL.HHZ. 2016-10-03T17:33:17.11 0.3 undecidable manual P 181 88.245 50 -0.42 61
IV.MSRU.HHZ. 2016-10-03T17:33:14.00 0.1 undecidable manual P 30 64.8906 50 0.07 91
IV.IVPL.HHZ. 2016-10-03T17:33:14.86 0.3 undecidable manual P 349 70.2741 50 0.1 67
IV.ESML.HHZ. 2016-10-03T17:33:13.26 0.3 undecidable manual S 237 27.5502 109 0.87 58
IV.SSY.HHZ. 2016-10-03T17:33:13.99 0.3 undecidable manual P 185 66.5778 50 -0.19 67
IV.MSFR.HHZ. 2016-10-03T17:33:13.00 0.3 undecidable manual P 303 57.0984 50 0.27 67
IV.MTTG.HHZ. 2016-10-03T17:33:12.58 0.3 undecidable manual P 61 56.0994 50 0 70
IV.GALF.HHZ. 2016-10-03T17:33:12.19 0.3 undecidable manual P 265 50.616 50 0.47 65
IV.MILZ.HHZ. 2016-10-03T17:33:12.58 0.3 undecidable manual P 8 57.7977 50 -0.25 67
IV.AIO.HHZ. 2016-10-03T17:33:11.84 0.3 undecidable manual S 19 25.2525 110 0.19 72
IV.HAGA.HHZ. 2016-10-03T17:33:11.70 0.3 undecidable manual P 179 52.2033 50 -0.27 67
IV.HLNI.HHZ. 2016-10-03T17:33:11.04 0.1 undecidable manual P 208 50.9157 50 -0.74 78
IV.MNO.SHZ. 2016-10-03T17:33:10.96 0.3 undecidable manual P 297 43.623 50 0.31 68
IV.MPNC.HHN. 2016-10-03T17:33:10.97 0.3 undecidable manual P 23 47.2194 50 -0.22 69
IV.ESLN.HHZ. 2016-10-03T17:33:08.26 0.3 undecidable manual S 245 16.1727 120 -0.52 68
IV.EPOZ.HHZ. 2016-10-03T17:33:07.86 0.3 undecidable manual S 156 10.1787 133 0.75 62
IV.ESML.HHZ. 2016-10-03T17:33:07.73 0.3 undecidable manual P 237 27.5502 109 -0.4 68
IV.AIO.HHZ. 2016-10-03T17:33:07.32 0.1 positive manual P 19 25.2525 110 -0.38 92
IV.EMSG.HHZ. 2016-10-03T17:33:06.44 0.1 undecidable manual P 293 18.2706 117 0.03 100
IV.ESLN.HHZ. 2016-10-03T17:33:05.33 0.1 negative manual P 245 16.1727 120 -0.71 84
IV.EPOZ.HHZ. 2016-10-03T17:33:05.24 0.1 positive manual P 156 10.1787 133 0.17 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHN. ML:2.9 0.006189999999999999 0.38 AML other m 2016-10-03T17:33:14.76
IV.EMSG.HHE. ML:2.8 0.0058200000000000005 0.96 AML other m 2016-10-03T17:33:16.55
IV.EPOZ.HHE. ML:2.6 0.0055 0.4 AML other m 2016-10-03T17:33:11.81
IV.EPOZ.HHN. ML:2.7 0.007465 1.52 AML other m 2016-10-03T17:33:14.00
IV.ESLN.HHE. ML:2.6 0.0033949999999999996 0.78 AML other m 2016-10-03T17:33:08.77
IV.ESLN.HHN. ML:2.5 0.002725 0.28 AML other m 2016-10-03T17:33:09.19
IV.ESML.HHN. ML:2.2 0.0009270000000000001 1.34 AML other m 2016-10-03T17:33:16.28
IV.ESML.HHE. ML:2.3 0.001052 0.36 AML other m 2016-10-03T17:33:17.88
IV.GALF.HHE. ML:2.2 0.0004515 1.44 AML other m 2016-10-03T17:33:26.95
IV.GALF.HHN. ML:2.1 0.0003075 1.52 AML other m 2016-10-03T17:33:27.95
IV.HAGA.HHN. ML:2.0 0.00028100000000000005 1.48 AML other m 2016-10-03T17:33:22.88
IV.HAGA.HHE. ML:2.0 0.000248 0.44 AML other m 2016-10-03T17:33:24.86
IV.HAVL.HHE. ML:2.4 0.00034100000000000005 0.98 AML other m 2016-10-03T17:33:31.07
IV.HAVL.HHN. ML:2.5 0.0004145 0.22 AML other m 2016-10-03T17:33:34.20
IV.HLNI.HHN. ML:1.8 0.00014749999999999998 0.74 AML other m 2016-10-03T17:33:19.50
IV.HLNI.HHE. ML:1.8 0.0001635 0.42 AML other m 2016-10-03T17:33:21.94
IV.HMDC.HHN. ML:2.4 0.000287 0.56 AML other m 2016-10-03T17:33:33.90
IV.HMDC.HHE. ML:2.5 0.0003745 0.34 AML other m 2016-10-03T17:33:32.30
IV.IVPL.HHN. ML:3.2 0.002415 0.38 AML other m 2016-10-03T17:33:29.43
IV.IVPL.HHE. ML:3.0 0.0018199999999999998 0.88 AML other m 2016-10-03T17:33:30.48
IV.MILZ.HHE. ML:2.2 0.000354 0.34 AML other m 2016-10-03T17:33:27.81
IV.MILZ.HHN. ML:2.1 0.000266 0.54 AML other m 2016-10-03T17:33:27.93
IV.MSFR.HHE. ML:1.8 0.0001485 1.12 AML other m 2016-10-03T17:33:26.82
IV.MSFR.HHN. ML:1.8 0.00015099999999999998 0.98 AML other m 2016-10-03T17:33:28.79
IV.PLLN.EHN. ML:2.7 0.000605 0.56 AML other m 2016-10-03T17:33:38.58
IV.PLLN.EHE. ML:2.4 0.00028199999999999997 1.58 AML other m 2016-10-03T17:33:40.05
IV.RAFF.HHE. ML:2.2 0.000187 1.2 AML other m 2016-10-03T17:33:33.64
IV.RAFF.HHN. ML:2.1 0.0001545 0.88 AML other m 2016-10-03T17:33:33.52
IV.SSY.HHE. ML:2.4 0.000475 1 AML other m 2016-10-03T17:33:27.66
IV.SSY.HHN. ML:2.8 0.001002 0.28 AML other m 2016-10-03T17:33:27.77
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