Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 07-07-2019 and time 23:57:17 (Italy) in region 3 km NE Biancavilla (CT)

A magnitude ML 1.9 earthquake occured in region: 3 km NE Biancavilla (CT), on

  • 07-07-2019 21:57:17 (UTC)
  • 07-07-2019 23:57:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6630, 14.8950 at 21 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 3 24007 24007
Santa Maria di Licodia CT 5 7641 31648
Ragalna CT 5 3924 35572
Adrano CT 6 36122 71694
Paternò CT 10 48228 119922
Belpasso CT 11 28108 148030
Nicolosi CT 13 7463 155493
Centuripe EN 14 5470 160963
Camporotondo Etneo CT 14 5023 165986
Bronte CT 15 19172 185158
San Pietro Clarenza CT 15 7743 192901
Pedara CT 15 14102 207003
Trecastagni CT 17 10910 217913
Mascalucia CT 17 31958 249871
Motta Sant'Anastasia CT 18 12116 261987
Tremestieri Etneo CT 18 20589 282576
Misterbianco CT 19 49410 331986
Gravina di Catania CT 19 25838 357824
Viagrande CT 19 8563 366387
Zafferana Etnea CT 19 9517 375904
Maletto CT 19 3920 379824
San Giovanni la Punta CT 20 23060 402884

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of Catania (314555 inhabitants)
25 Km W of Acireale (52622 inhabitants)
76 Km NW of Siracusa (122291 inhabitants)
76 Km E of Caltanissetta (63360 inhabitants)
82 Km SW of Reggio di Calabria (183035 inhabitants)
83 Km SW of Messina (238439 inhabitants)
83 Km N of Ragusa (73313 inhabitants)
85 Km NE of Vittoria (63339 inhabitants)
87 Km NE of Gela (75827 inhabitants)
90 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 2019-07-07
21:57:17		 37.6632 14.8953 21 2019-11-13
14:30:56		 Bollettino Sismico Italiano INGV 70826821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-07 21:57:17 ± 0.16
Latitude 37.6632 ± 0.0063
Longitude 14.8953 ± 0.0125
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 70826821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1118
Semi-minor axis of confidence ellipse (meter) 168
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.50542
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 70826821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-23 13:33:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AGST.EHE. 2019-07-07T21:57:35.49 0.1 undecidable manual S 147 53.7018 104 0.57 86
IV.HVZN.HNZ. 2019-07-07T21:57:35.98 0.3 undecidable manual S 196 56.0994 103 0.45 66
IV.MSFR.HHZ. 2019-07-07T21:57:34.20 0.6 undecidable manual S 327 49.0176 106 0.51 44
IV.HAGA.HHZ. 2019-07-07T21:57:33.95 0.1 undecidable manual S 151 47.8188 106 0.57 87
IV.AIO.HHE. 2019-07-07T21:57:33.51 0.6 undecidable manual S 41 45.2214 107 0.78 39
IV.MUCR.HHZ. 2019-07-07T21:57:32.06 0.1 undecidable manual S 357 42.1245 109 0.1 97
IV.CAGR.HHE. 2019-07-07T21:57:31.16 1.0 undecidable manual S 263 35.0427 113 0.98 19
IV.HLNI.HHZ. 2019-07-07T21:57:30.14 0.1 undecidable manual S 183 34.9428 113 -0.02 100
IV.ECTS.EHZ. 2019-07-07T21:57:29.31 1.0 undecidable manual S 39 31.3464 116 0.04 25
IV.AGST.EHE. 2019-07-07T21:57:28.53 0.6 undecidable manual P 147 53.7018 104 0.85 38
IV.HVZN.HNZ. 2019-07-07T21:57:27.58 0.1 undecidable manual P 196 56.0994 103 -0.45 88
IV.EPZF.HHZ. 2019-07-07T21:57:27.12 0.6 undecidable manual S 349 18.1707 134 0.74 43
IV.EMSG.HHZ. 2019-07-07T21:57:26.53 0.6 undecidable manual S 15 18.1707 134 0.16 50
IV.MSFR.HHZ. 2019-07-07T21:57:26.83 0.3 undecidable manual P 327 49.0176 106 -0.14 72
IV.HAGA.HHZ. 2019-07-07T21:57:26.23 0.1 undecidable manual P 151 47.8188 106 -0.56 87
IV.AIO.HHE. 2019-07-07T21:57:26.34 0.1 undecidable manual P 41 45.2214 107 -0.07 98
IV.MUCR.HHZ. 2019-07-07T21:57:25.49 0.1 undecidable manual P 357 42.1245 109 -0.47 91
IV.ESLN.HHZ. 2019-07-07T21:57:25.14 0.6 undecidable manual S 64 7.6812 157 0.36 49
IV.CAGR.HHE. 2019-07-07T21:57:25.38 0.1 undecidable manual P 263 35.0427 113 0.44 92
IV.ESML.HHZ. 2019-07-07T21:57:24.71 0.3 undecidable manual S 196 5.1948 164 0.15 78
IV.ECTS.EHZ. 2019-07-07T21:57:24.21 0.1 undecidable manual P 39 31.3464 116 -0.21 98
IV.HLNI.HHZ. 2019-07-07T21:57:24.42 0.1 undecidable manual P 183 34.9428 113 -0.51 91
IV.EPZF.HHZ. 2019-07-07T21:57:23.34 0.1 undecidable manual P 349 18.1707 134 0.6 90
IV.GALF.HHZ. 2019-07-07T21:57:23.79 0.1 undecidable manual P 280 29.3484 118 -0.36 95
IV.EMCN.HNE. 2019-07-07T21:57:22.88 0.3 undecidable manual P 40 18.6702 133 0.08 76
IV.EMSG.HHZ. 2019-07-07T21:57:22.43 0.1 undecidable manual P 15 18.1707 134 -0.31 98
IV.EPIT.HHN. 2019-07-07T21:57:22.98 0.1 undecidable manual P 41 21.6672 128 -0.18 100
IV.ESML.HHZ. 2019-07-07T21:57:21.06 0.1 undecidable manual P 196 5.1948 164 -0.63 90
IV.ESLN.HHZ. 2019-07-07T21:57:21.52 0.1 undecidable manual P 64 7.6812 157 -0.3 99
IV.ECHR.HHE. 2019-07-07T21:57:21.15 0.6 undecidable manual P 31 2.997 171 -0.47 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHN. ML:2.1 0.0006725 0.4 AML other m 2019-07-07T21:57:29.54
IV.ESLN.HHE. ML:2.2 0.001071 0.42 AML other m 2019-07-07T21:57:27.37
IV.EMSG.HHN. ML:2.2 0.0008105 1.58 AML other m 2019-07-07T21:57:28.92
IV.EPZF.HHE. ML:1.8 0.000333 0.26 AML other m 2019-07-07T21:57:29.31
IV.HLNI.HHE. ML:2.0 0.000316 0.52 AML other m 2019-07-07T21:57:30.87
IV.HLNI.HHN. ML:1.6 0.0001225 0.3 AML other m 2019-07-07T21:57:31.00
IV.GALF.HHE. ML:2.2 0.000605 1.34 AML other m 2019-07-07T21:57:31.78
IV.GALF.HHN. ML:2.2 0.000683 0.4 AML other m 2019-07-07T21:57:33.27
IV.MUCR.HHE. ML:1.7 0.0001545 0.54 AML other m 2019-07-07T21:57:33.26
IV.MUCR.HHN. ML:1.6 0.00011199999999999998 0.46 AML other m 2019-07-07T21:57:33.37
IV.EMSG.HHE. ML:2.1 0.0007749999999999999 0.38 AML other m 2019-07-07T21:57:35.71
IV.MSFR.HHE. ML:1.1 0.0000323 0.42 AML other m 2019-07-07T21:57:36.38
IV.MSFR.HHN. ML:1.1 0.00003095 0.7 AML other m 2019-07-07T21:57:38.83
IV.ESML.HHE. ML:2.0 0.0007611629 0.6144 AML other m 2019-07-07T21:57:28.00
IV.ESLN.HHN. ML:2.0 0.00083726775 0.3968 AML other m 2019-07-07T21:57:26.12
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