Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 23-07-2019 and time 08:29:59 (Italy) in region 2 km E Bronte (CT)

A magnitude ML 2.2 earthquake occured in region: 2 km E Bronte (CT), on

  • 23-07-2019 06:29:59 (UTC)
  • 23-07-2019 08:29:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7860, 14.8520 at 11 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
Bronte CT 2 19172 19172
Maletto CT 5 3920 23092
Maniace CT 9 3765 26857
Randazzo CT 13 10900 37757
Cesarò ME 14 2439 40196
Adrano CT 14 36122 76318
San Teodoro ME 15 1403 77721
Biancavilla CT 16 24007 101728
Santa Domenica Vittoria ME 17 980 102708
Ragalna CT 19 3924 106632
Santa Maria di Licodia CT 19 7641 114273

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of Acireale (52622 inhabitants)
38 Km NW of Catania (314555 inhabitants)
77 Km SW of Messina (238439 inhabitants)
77 Km E of Caltanissetta (63360 inhabitants)
78 Km W of Reggio di Calabria (183035 inhabitants)
90 Km NW of Siracusa (122291 inhabitants)
96 Km NE of Gela (75827 inhabitants)
96 Km N of Ragusa (73313 inhabitants)
97 Km N of Vittoria (63339 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 2.2 2019-07-23
06:29:59		 37.7865 14.8518 11 2019-11-13
14:31:06		 Bollettino Sismico Italiano INGV 73254151
Reviewed
Rev200 		ML 2.2 2019-07-23
06:29:58		 37.771 14.827 10 2019-07-23
08:43:15		 Sala Operativa INGV-OE (Catania) 70818931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-23 06:29:59 ± 0.09
Latitude 37.7865 ± 0.0063
Longitude 14.8518 ± 0.0080
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73254151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 680
Semi-minor axis of confidence ellipse (meter) 675
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
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) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.70327
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 70818931
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2019-07-23 08:43:15

ML:2.2

Field Value
Value 2.2
Uncertainty 0.4
Num. used stations 28
Type of magnitude ML
Reference to an origin 73254151
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-14 16:21:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2019-07-23T06:30:13.31 0.3 undecidable manual P 215 75.9684 50 0.9 54
IV.MSRU.HHZ. 2019-07-23T06:30:12.78 0.3 undecidable manual P 47 78.0663 50 0.04 68
IV.SSY.HHZ. 2019-07-23T06:30:11.70 0.3 undecidable manual P 164 72.4719 50 -0.17 65
IV.MUCR.HHZ. 2019-07-23T06:30:10.11 0.6 undecidable manual S 4 28.5492 50 0.75 42
IV.MPNC.HHZ. 2019-07-23T06:30:09.92 0.3 undecidable manual P 47 59.2962 50 0.08 70
IV.HLNI.HHZ. 2019-07-23T06:30:08.14 0.6 undecidable manual P 178 48.618 50 -0.06 47
IV.GALF.HHZ. 2019-07-23T06:30:08.99 0.6 undecidable manual S 252 26.3514 50 0.19 49
IV.MNO.SHZ. 2019-07-23T06:30:07.90 0.6 undecidable manual S 319 21.0678 50 0.52 45
IV.EPIT.HHN. 2019-07-23T06:30:07.51 0.6 undecidable manual S 81 18.1707 50 0.91 38
IV.ESLN.HHZ. 2019-07-23T06:30:06.98 0.6 undecidable manual S 134 14.874 127 1.26 31
IV.AIO.HHZ. 2019-07-23T06:30:06.58 0.1 undecidable manual P 58 39.1275 50 -0.16 93
IV.MSFR.HHZ. 2019-07-23T06:30:06.11 0.3 undecidable manual P 320 35.6421 50 -0.09 72
IV.ECHR.HHE. 2019-07-23T06:30:05.03 0.6 undecidable manual S 154 12.3765 132 0 50
IV.MUCR.HHZ. 2019-07-23T06:30:05.00 0.1 positive manual P 4 28.5492 50 -0.1 96
IV.GALF.HHZ. 2019-07-23T06:30:04.67 0.1 negative manual P 252 26.3514 50 -0.11 97
IV.ESML.HHZ. 2019-07-23T06:30:04.10 0.3 undecidable manual P 173 18.87 50 0.49 68
IV.ECTS.EHZ. 2019-07-23T06:30:04.31 0.1 undecidable manual P 66 25.8519 50 -0.38 91
IV.EMSG.HHZ. 2019-07-23T06:30:04.68 0.6 undecidable manual S 66 9.3795 140 0.37 46
IV.EPIT.HHN. 2019-07-23T06:30:03.57 0.1 undecidable manual P 81 18.1707 50 0.06 99
IV.MNO.SHZ. 2019-07-23T06:30:03.98 0.1 negative manual P 319 21.0678 50 0.02 100
IV.EPZF.HHZ. 2019-07-23T06:30:03.60 0.6 undecidable manual S 6 4.1958 159 0.22 47
IV.EMCN.HNE. 2019-07-23T06:30:03.18 0.1 undecidable manual P 88 15.9729 50 0.01 100
IV.ESLN.HHZ. 2019-07-23T06:30:02.74 0.1 positive manual P 134 14.874 127 -0.26 98
IV.EPZF.HHZ. 2019-07-23T06:30:01.23 0.1 positive manual P 6 4.1958 159 -0.42 98
IV.EMSG.HHZ. 2019-07-23T06:30:01.95 0.1 positive manual P 66 9.3795 140 -0.24 100
IV.ECHR.HHE. 2019-07-23T06:30:01.93 0.1 undecidable manual P 154 12.3765 132 -0.67 89
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:2.6 0.005925 0.6 AML other m 2019-07-23T06:30:04.34
IV.EPZF.HHN. ML:2.7 0.008525 0.3 AML other m 2019-07-23T06:30:04.47
IV.EMSG.HHN. ML:2.8 0.00739 0.26 AML other m 2019-07-23T06:30:04.82
IV.EMSG.HHE. ML:3.0 0.01325 0.26 AML other m 2019-07-23T06:30:05.13
IV.ESLN.HHE. ML:2.5 0.003205 0.44 AML other m 2019-07-23T06:30:07.35
IV.ESLN.HHN. ML:2.4 0.00231 1.38 AML other m 2019-07-23T06:30:07.92
IV.MNO.SHE. ML:0.0 0.00138 0.28 AML other m 2019-07-23T06:30:09.26
IV.GALF.HNE. ML:1.9 0.0004415 1.14 AML other m 2019-07-23T06:30:09.17
IV.GALF.HHN. ML:2.8 0.00364 0.66 AML other m 2019-07-23T06:30:10.18
IV.MNO.SHN. ML:0.0 0.0015435 0.32 AML other m 2019-07-23T06:30:10.24
IV.MUCR.HHE. ML:2.5 0.0017200000000000002 0.6 AML other m 2019-07-23T06:30:10.74
IV.ESML.HHE. ML:2.3 0.0015350000000000001 1.16 AML other m 2019-07-23T06:30:10.38
IV.MUCR.HHN. ML:2.4 0.0014399999999999999 1.56 AML other m 2019-07-23T06:30:12.13
IV.MSFR.HHE. ML:1.8 0.00023199999999999997 0.8 AML other m 2019-07-23T06:30:12.74
IV.MSFR.HHN. ML:1.8 0.000245 0.98 AML other m 2019-07-23T06:30:12.62
IV.GALF.HHE. ML:2.8 0.0032400000000000003 1.56 AML other m 2019-07-23T06:30:12.13
IV.GALF.HNN. ML:1.8 0.000354 0.52 AML other m 2019-07-23T06:30:14.49
IV.ESML.HHN. ML:2.3 0.001435 0.6 AML other m 2019-07-23T06:30:14.26
IV.HLNI.HHE. ML:1.8 0.000157 0.64 AML other m 2019-07-23T06:30:16.01
IV.AIO.HHE. ML:1.9 0.00028799999999999995 0.24 AML other m 2019-07-23T06:30:17.07
IV.AIO.HHN. ML:2.0 0.000316 1.12 AML other m 2019-07-23T06:30:17.83
IV.SSY.HHE. ML:2.4 0.0004360000000000001 0.76 AML other m 2019-07-23T06:30:23.84
IV.HLNI.HHN. ML:1.7 0.0001265 0.92 AML other m 2019-07-23T06:30:23.15
IV.MPNC.HHN. ML:2.2 0.000345 0.42 AML other m 2019-07-23T06:30:23.46
IV.SSY.HHN. ML:2.7 0.0008375 0.72 AML other m 2019-07-23T06:30:27.05
IV.MPNC.HHE. ML:2.2 0.0003155 0.42 AML other m 2019-07-23T06:30:27.28
IV.RAFF.HHN. ML:1.7 0.00007035 1.66 AML other m 2019-07-23T06:30:29.01
IV.MSRU.HHE. ML:2.1 0.0001635 0.6 AML other m 2019-07-23T06:30:30.54
IV.RAFF.HHE. ML:1.7 0.0000807 0.66 AML other m 2019-07-23T06:30:32.84
IV.MSRU.HHN. ML:1.8 0.0000992 1.68 AML other m 2019-07-23T06:30:34.90
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