Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 19-08-2017 and time 15:37:43 (Italy) in region 4 km E Biancavilla (CT)

A magnitude ML 2.0 earthquake occured in region: 4 km E Biancavilla (CT), on

  • 19-08-2017 13:37:43 (UTC)
  • 19-08-2017 15:37:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6540, 14.9080 at 23 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
Biancavilla CT 4 24007 24007
Ragalna CT 4 3924 27931
Santa Maria di Licodia CT 5 7641 35572
Adrano CT 7 36122 71694
Paternò CT 9 48228 119922
Belpasso CT 9 28108 148030
Nicolosi CT 11 7463 155493
Camporotondo Etneo CT 13 5023 160516
San Pietro Clarenza CT 14 7743 168259
Pedara CT 14 14102 182361
Centuripe EN 15 5470 187831
Trecastagni CT 16 10910 198741
Mascalucia CT 16 31958 230699
Bronte CT 16 19172 249871
Motta Sant'Anastasia CT 17 12116 261987
Tremestieri Etneo CT 17 20589 282576
Misterbianco CT 17 49410 331986
Gravina di Catania CT 17 25838 357824
Viagrande CT 17 8563 366387
Zafferana Etnea CT 18 9517 375904
San Giovanni la Punta CT 19 23060 398964
Sant'Agata li Battiati CT 19 9479 408443
Aci Bonaccorsi CT 19 3524 411967
Maletto CT 20 3920 415887
Aci Sant'Antonio CT 20 17984 433871
Milo CT 20 1087 434958

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Catania (314555 inhabitants)
23 Km W of Acireale (52622 inhabitants)
74 Km NW of Siracusa (122291 inhabitants)
77 Km E of Caltanissetta (63360 inhabitants)
82 Km SW of Reggio di Calabria (183035 inhabitants)
83 Km N of Ragusa (73313 inhabitants)
83 Km SW of Messina (238439 inhabitants)
85 Km NE of Vittoria (63339 inhabitants)
87 Km NE of Gela (75827 inhabitants)
89 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 2.0 2017-08-19
13:37:43		 37.6543 14.9082 23 2018-07-06
15:40:34		 Bollettino Sismico Italiano INGV 51099551
Reviewed
Rev100 		ML 2.0 2017-08-19
13:37:43		 37.6578 14.893 7 2017-08-19
15:28:00		 Sala Sismica INGV-Roma 49185731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-08-19 13:37:43 ± 0.11
Latitude 37.6543 ± 0.0054
Longitude 14.9082 ± 0.0091
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 51099551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 784
Semi-minor axis of confidence ellipse (meter) 178
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 103
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
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) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.27609
Epicentral distance of station farthest from the epicenter (degree) 0.90022
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 51099551
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-10-18 14:45:20

ML:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 49185731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-08-19 15:28:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CLTA.HHN. 2017-08-19T13:38:00.27 0.6 undecidable manual P 237 99.9222 98 0.31 44
IV.HAGA.HHZ. 2017-08-19T13:37:58.83 0.6 undecidable manual S 152 46.4202 110 0.41 48
IV.MTTG.HHE. 2017-08-19T13:37:57.28 0.6 undecidable manual P 61 79.4649 100 0.43 44
IV.AIO.HHZ. 2017-08-19T13:37:57.87 1.0 undecidable manual S 39 45.2214 110 -0.27 25
IV.CSLB.HHZ. 2017-08-19T13:37:57.39 0.3 undecidable manual P 293 80.8635 100 0.32 67
IV.IVPL.HHZ. 2017-08-19T13:37:57.04 0.3 undecidable manual P 4 80.364 100 0.05 71
IV.MNO.SHZ. 2017-08-19T13:37:56.32 0.6 undecidable manual S 329 35.9418 116 0.47 47
IV.PETRA.HHN. 2017-08-19T13:37:56.06 0.3 undecidable manual P 286 72.372 102 0.28 69
IV.RAFF.HHZ. 2017-08-19T13:37:55.05 0.3 undecidable manual P 225 67.8765 103 -0.05 73
IV.RESU.HHZ. 2017-08-19T13:37:55.96 1.0 undecidable manual P 270 74.7696 101 -0.18 23
IV.HLNI.HHZ. 2017-08-19T13:37:55.48 0.6 undecidable manual S 185 34.0437 117 0.08 52
IV.MILZ.HHZ. 2017-08-19T13:37:55.79 0.3 undecidable manual P 22 74.0703 101 -0.24 70
IV.GALF.HHZ. 2017-08-19T13:37:54.75 0.6 undecidable manual S 282 30.6471 121 0.15 51
IV.MSFR.HHZ. 2017-08-19T13:37:52.02 0.6 undecidable manual P 327 50.4162 108 -0.48 46
IV.AGST.EHZ. 2017-08-19T13:37:52.63 0.3 undecidable manual P 147 52.3032 107 -0.15 73
IV.AIO.HHZ. 2017-08-19T13:37:51.85 0.1 undecidable manual P 39 45.2214 110 0.11 100
IV.HAGA.HHZ. 2017-08-19T13:37:51.82 0.3 undecidable manual P 152 46.4202 110 -0.09 75
IV.HLNI.HHZ. 2017-08-19T13:37:50.05 0.3 undecidable manual P 185 34.0437 117 -0.12 76
IV.MNO.SHZ. 2017-08-19T13:37:49.95 0.3 undecidable manual P 329 35.9418 116 -0.47 71
IV.GALF.HHZ. 2017-08-19T13:37:49.35 0.3 undecidable manual P 282 30.6471 121 -0.35 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHN. ML:1.9 0.00028822735 0.7232 AML other m 2017-08-19T13:37:55.13
IV.GALF.HHE. ML:2.0 0.0004008601 0.6208 AML other m 2017-08-19T13:37:56.06
IV.MNO.SHN. ML:0.0 0.0003756165 0.5568 AML other m 2017-08-19T13:37:56.40
IV.MNO.SHE. ML:0.0 0.00043216719999999997 0.48 AML other m 2017-08-19T13:37:56.32
IV.HAGA.HHE. ML:1.9 0.00020454164999999998 0.3776 AML other m 2017-08-19T13:38:00.23
IV.HAGA.HHN. ML:1.4 0.000067818605 1.504 AML other m 2017-08-19T13:37:58.92
IV.AIO.HHE. ML:2.0 0.00024258205 0.48 AML other m 2017-08-19T13:37:59.50
IV.AIO.HHN. ML:1.4 0.000065310955 0.224 AML other m 2017-08-19T13:37:58.92
IV.RAFF.HHN. ML:2.2 0.0002856303 0.5824 AML other m 2017-08-19T13:38:06.93
IV.RAFF.HHE. ML:2.2 0.0002877887 0.4416 AML other m 2017-08-19T13:38:06.80
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