INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.9 on date 09-10-2018 and time 07:33:44 (Italy) in region 8 km NE Biancavilla (CT)

A magnitude ML 1.9 earthquake occured in region: 8 km NE Biancavilla (CT), on

  • 09-10-2018 05:33:44 (UTC)
  • 09-10-2018 07:33:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.71, 14.92 at 29 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Biancavilla CT 8 24007 24007
Ragalna CT 9 3924 27931
Adrano CT 9 36122 64053
Santa Maria di Licodia CT 10 7641 71694
Bronte CT 12 19172 90866
Belpasso CT 14 28108 118974
Nicolosi CT 14 7463 126437
Paternò CT 14 48228 174665
Maletto CT 15 3920 178585
Pedara CT 16 14102 192687
Zafferana Etnea CT 17 9517 202204
Camporotondo Etneo CT 17 5023 207227
Trecastagni CT 17 10910 218137
San Pietro Clarenza CT 18 7743 225880
Milo CT 18 1087 226967
Centuripe EN 18 5470 232437
Mascalucia CT 19 31958 264395
Viagrande CT 19 8563 272958
Randazzo CT 19 10900 283858
Santa Venerina CT 20 8592 292450
Tremestieri Etneo CT 20 20589 313039
Maniace CT 20 3765 316804

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km W of Acireale (52622 inhabitants)
27 Km NW of Catania (314555 inhabitants)
78 Km SW of Reggio di Calabria (183035 inhabitants)
78 Km SW of Messina (238439 inhabitants)
79 Km E of Caltanissetta (63360 inhabitants)
79 Km NW of Siracusa (122291 inhabitants)
88 Km N of Ragusa (73313 inhabitants)
91 Km NE of Vittoria (63339 inhabitants)
92 Km NE of Gela (75827 inhabitants)
95 Km N of Modica (54633 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.9 2018-10-09
05:33:44
37.71 14.92 29 2018-10-09
05:40:31
Sala Sismica INGV-Roma 61759801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-09 05:33:44 ± 0.17
Latitude 37.71 ± 0.01
Longitude 14.92 ± 0.01
Depth (km) 29 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 61759801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1082
Semi-minor axis of confidence ellipse (meter) 566
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 65
Circular confidence region, given by single value of horizontal uncertainty (meter) 1080
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.75453
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 61759801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-10-09 05:40:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PANTE.HHZ. 2018-10-09T05:34:22.49 3.0 undecidable manual Pn -0.52 0
IV.PIPA.HHZ. 2018-10-09T05:34:21.18 3.0 positive manual Pn 0.67 0
IV.CROCE.HHZ. 2018-10-09T05:34:15.48 3.0 undecidable manual S 0.77 0
IV.IACL.HHZ. 2018-10-09T05:34:02.24 3.0 positive manual P 0.63 0
IV.HMDC.HHZ. 2018-10-09T05:33:59.16 0.3 undecidable manual P 188 0.7545 104 0.26 84
IV.MNO.SHZ. 2018-10-09T05:33:57.50 0.6 undecidable manual S 322 0.2851 127 0.66 55
IV.RAFF.HHZ. 2018-10-09T05:33:57.54 0.6 undecidable manual P 223 0.6538 106 0.3 57
IV.MILZ.HHZ. 2018-10-09T05:33:56.79 0.3 undecidable manual P 24 0.6169 107 0.16 88
IV.MPNC.HHZ. 2018-10-09T05:33:55.96 0.6 undecidable manual P 38 0.5585 109 0.28 58
IV.SSY.HHZ. 2018-10-09T05:33:55.67 0.3 undecidable manual P 167 0.5621 109 -0.07 91
IV.EPZF.HHZ. 2018-10-09T05:33:54.10 0.6 undecidable manual S 338 0.1268 151 0.38 62
IV.ESML.HHZ. 2018-10-09T05:33:53.40 0.3 undecidable manual S 199 0.0926 158 0.12 100
IV.NOV.HHZ. 2018-10-09T05:33:52.65 0.6 undecidable manual P 28 0.3651 120 -0.01 64
IV.MUCR.HHZ. 2018-10-09T05:33:51.94 0.3 undecidable manual P 354 0.3381 122 -0.34 91
IV.MNO.SHZ. 2018-10-09T05:33:51.26 0.3 undecidable manual P 322 0.2851 127 -0.26 93
IV.GALF.HHZ. 2018-10-09T05:33:51.35 0.3 undecidable manual P 271 0.2779 128 -0.07 97
IV.EPOZ.HHZ. 2018-10-09T05:33:50.87 0.6 undecidable manual P 99 0.2167 136 0.22 63
IV.ESML.HHZ. 2018-10-09T05:33:49.03 0.6 undecidable manual P 199 0.0926 158 -0.44 61
IV.EMCN.HNZ. 2018-10-09T05:33:49.55 0.6 undecidable manual P 47 0.125 151 -0.16 65
IV.EPZF.HHZ. 2018-10-09T05:33:49.18 0.3 undecidable manual P 338 0.1268 151 -0.54 89
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:2.7 0.002235 0.46 AML other m 2018-10-09T05:33:54.28
IV.ESML.HHN. ML:2 0.0004545 0.32 AML other m 2018-10-09T05:33:54.52
IV.EPZF.HHN. ML:2.3 0.000916 0.36 AML other m 2018-10-09T05:33:54.59
IV.ESML.HHE. ML:2.1 0.0006565 0.24 AML other m 2018-10-09T05:33:54.65
IV.MNO.SHE. ML:0 0.0002215 0.96 AML other m 2018-10-09T05:33:58.06
IV.MNO.SHN. ML:0 0.000155 1.4 AML other m 2018-10-09T05:33:59.70
IV.GALF.HHN. ML:1.8 0.0002 0.76 AML other m 2018-10-09T05:33:59.10
IV.MUCR.HHN. ML:1.6 0.0001165 1.44 AML other m 2018-10-09T05:33:59.27
IV.MUCR.HHE. ML:1.8 0.000205 0.44 AML other m 2018-10-09T05:33:59.52
IV.GALF.HHE. ML:1.9 0.000291 0.36 AML other m 2018-10-09T05:33:59.48
IV.NOV.HHN. ML:2 0.000287 0.74 AML other m 2018-10-09T05:34:00.27
IV.NOV.HHE. ML:2.1 0.000372 0.4 AML other m 2018-10-09T05:34:00.73
IV.SSY.HHE. ML:2.5 0.0005045 0.16 AML other m 2018-10-09T05:34:04.74
IV.MPNC.HHE. ML:1.7 8.35E-5 0.58 AML other m 2018-10-09T05:34:06.14
IV.MILZ.HHE. ML:1.8 0.00010065 0.38 AML other m 2018-10-09T05:34:08.75
IV.RAFF.HHE. ML:1.6 5.415E-5 0.76 AML other m 2018-10-09T05:34:09.77
IV.RAFF.HHN. ML:1.6 5.64E-5 1.24 AML other m 2018-10-09T05:34:09.35
IV.SSY.HHN. ML:2.7 0.0008855 1.58 AML other m 2018-10-09T05:34:10.05
IV.MILZ.HHN. ML:1.6 6.855E-5 1.24 AML other m 2018-10-09T05:34:11.20
IV.MPNC.HHN. ML:1.7 9.28E-5 0.68 AML other m 2018-10-09T05:34:11.20
IV.HMDC.HHE. ML:2.2 0.0002005 0.34 AML other m 2018-10-09T05:34:11.44
IV.HMDC.HHN. ML:2.1 0.000164 0.22 AML other m 2018-10-09T05:34:12.18
IV.CROCE.HHE. ML:2 8.19E-5 0.66 AML other m 2018-10-09T05:34:16.04
IV.CROCE.HHN. ML:2 8.915E-5 0.16 AML other m 2018-10-09T05:34:17.28
IV.PANTE.HHN. ML:3.9 0.00119 0.08 AML other m 2018-10-09T05:34:27.59
IV.PANTE.HHE. ML:3.8 0.001011 0.06 AML other m 2018-10-09T05:34:27.74
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download