Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 27-05-2018 and time 23:49:49 (Italy) in region 10 km SE Bronte (CT)

A magnitude ML 2.3 earthquake occured in region: 10 km SE Bronte (CT), on

  • 27-05-2018 21:49:49 (UTC)
  • 27-05-2018 23:49:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7320, 14.9220 at 8 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 10 19172 19172
Adrano CT 11 36122 55294
Biancavilla CT 11 24007 79301
Ragalna CT 11 3924 83225
Maletto CT 12 3920 87145
Santa Maria di Licodia CT 13 7641 94786
Nicolosi CT 16 7463 102249
Belpasso CT 16 28108 130357
Randazzo CT 17 10900 141257
Zafferana Etnea CT 17 9517 150774
Paternò CT 17 48228 199002
Milo CT 17 1087 200089
Pedara CT 18 14102 214191
Maniace CT 18 3765 217956
Trecastagni CT 19 10910 228866
Camporotondo Etneo CT 20 5023 233889
Sant'Alfio CT 20 1582 235471
Santa Venerina CT 20 8592 244063
San Pietro Clarenza CT 20 7743 251806

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of Acireale (52622 inhabitants)
29 Km NW of Catania (314555 inhabitants)
76 Km SW of Messina (238439 inhabitants)
76 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km E of Caltanissetta (63360 inhabitants)
82 Km NW of Siracusa (122291 inhabitants)
91 Km N of Ragusa (73313 inhabitants)
93 Km NE of Vittoria (63339 inhabitants)
95 Km NE of Gela (75827 inhabitants)
98 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 2.3 2018-05-27
21:49:49		 37.7315 14.922 8 2019-04-24
14:50:57		 Bollettino Sismico Italiano INGV 61962781
Reviewed
Rev100 		ML 2.3 2018-05-27
21:49:49		 37.7305 14.9282 5 2018-05-27
22:04:17		 Sala Sismica INGV-Roma 57296351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-27 21:49:49 ± 0.09
Latitude 37.7315 ± 0.0054
Longitude 14.9220 ± 0.0080
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 61962781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 605
Semi-minor axis of confidence ellipse (meter) 585
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 285
Circular confidence region, given by single value of horizontal uncertainty (meter) 610.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.05666
Epicentral distance of station farthest from the epicenter (degree) 1.39215
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 61962781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-25 10:22:27

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 57296351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-27 22:04:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLAC.HHZ. 2018-05-27T21:50:15.84 0.6 undecidable manual P 59 154.5342 50 0.78 30
IV.MEU.SHZ. 2018-05-27T21:50:12.00 0.6 undecidable manual S 187 69.2751 50 0.88 35
IV.SSY.HHZ. 2018-05-27T21:50:10.84 0.3 undecidable manual S 168 65.0904 50 0.86 53
IV.MPNC.HHZ. 2018-05-27T21:50:09.63 0.6 undecidable manual S 39 59.496 50 1.13 32
IV.HPAC.HHZ. 2018-05-27T21:50:08.65 0.3 undecidable manual P 175 113.8971 50 -0.17 60
MN.CEL.HHZ. 2018-05-27T21:50:07.19 0.3 undecidable manual P 55 103.2189 50 0.02 63
IV.RAFF.HHZ. 2018-05-27T21:50:03.23 0.6 undecidable manual P 221 74.9694 50 0.42 41
IV.SSY.HHZ. 2018-05-27T21:50:01.34 0.3 undecidable manual P 168 65.0904 50 0.06 68
IV.MEU.SHZ. 2018-05-27T21:50:01.72 0.6 undecidable manual P 187 69.2751 50 -0.22 43
IV.MPNC.HHZ. 2018-05-27T21:50:00.44 0.3 undecidable manual P 39 59.496 50 0.01 69
IV.GALF.HHZ. 2018-05-27T21:50:00.57 0.3 undecidable manual S 266 31.2465 104 0.01 73
IV.HAGA.HHZ. 2018-05-27T21:49:59.00 0.3 undecidable manual P 157 53.6019 50 -0.52 62
IV.MNO.SHZ. 2018-05-27T21:49:59.94 0.6 undecidable manual S 318 29.748 104 -0.11 48
IV.HLNI.HHZ. 2018-05-27T21:49:57.02 0.3 undecidable manual P 186 42.7239 50 -0.82 56
IV.AIO.HHZ. 2018-05-27T21:49:56.77 0.3 undecidable manual P 46 38.0286 50 -0.35 67
IV.NOV.HHZ. 2018-05-27T21:49:56.56 0.1 undecidable manual P 30 37.8288 50 -0.53 85
IV.MUCR.HHZ. 2018-05-27T21:49:56.03 0.1 undecidable manual P 353 34.8429 102 -0.5 87
IV.GALF.HHZ. 2018-05-27T21:49:55.91 0.3 undecidable manual P 266 31.2465 104 0.07 72
IV.MNO.SHZ. 2018-05-27T21:49:55.89 0.3 undecidable manual P 318 29.748 104 0.35 68
IV.EPZF.HHZ. 2018-05-27T21:49:54.93 0.6 undecidable manual S 331 11.7771 123 0.69 42
IV.EMSG.HHZ. 2018-05-27T21:49:54.50 0.6 undecidable manual S 14 10.1787 127 0.7 42
IV.EPOZ.HHZ. 2018-05-27T21:49:54.41 0.6 undecidable manual P 106 24.3534 107 -0.09 48
IV.ESLN.HHZ. 2018-05-27T21:49:53.11 0.3 undecidable manual S 133 6.2937 140 0.31 71
IV.EPZF.HHZ. 2018-05-27T21:49:52.03 0.1 undecidable manual P 331 11.7771 123 -0.16 97
IV.ESML.HHZ. 2018-05-27T21:49:52.27 0.3 undecidable manual P 197 13.0758 120 -0.15 73
IV.ESLN.HHZ. 2018-05-27T21:49:51.11 0.1 undecidable manual P 133 6.2937 140 -0.25 96
IV.EMSG.HHZ. 2018-05-27T21:49:51.91 0.1 undecidable manual P 14 10.1787 127 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHE. ML:2.8 0.0084305515 0.3072 AML other m 2018-05-27T21:49:54.87
IV.ESML.HHE. ML:2.4 0.0032849909999999997 1.4496 AML other m 2018-05-27T21:49:55.87
IV.EPZF.HHE. ML:2.5 0.0039547605 0.2944 AML other m 2018-05-27T21:49:56.79
IV.EPZF.HHN. ML:2.6 0.0049779665 0.3456 AML other m 2018-05-27T21:49:57.20
IV.EMSG.HHN. ML:2.8 0.008426277000000001 1.5776 AML other m 2018-05-27T21:49:59.14
IV.ESML.HHN. ML:2.6 0.005431013 0.4864 AML other m 2018-05-27T21:50:00.40
IV.EPOZ.HHE. ML:2.2 0.00102530495 0.576 AML other m 2018-05-27T21:50:00.94
IV.MNO.SHE. ML:0.0 0.0008882900499999999 0.6784 AML other m 2018-05-27T21:50:05.59
IV.EPOZ.HHN. ML:2.2 0.0009061623 0.5504 AML other m 2018-05-27T21:50:07.71
IV.GALF.HHE. ML:2.2 0.00078523085 1.36 AML other m 2018-05-27T21:50:08.84
IV.HLNI.HHE. ML:1.9 0.000273241 0.256 AML other m 2018-05-27T21:50:08.38
IV.GALF.HHN. ML:2.3 0.0010420145000000001 1.2064 AML other m 2018-05-27T21:50:08.33
IV.AIO.HHE. ML:2.3 0.0007223728 1.2192 AML other m 2018-05-27T21:50:08.96
IV.GALF.HNE. ML:1.7 0.00024517584999999995 0.4992 AML other m 2018-05-27T21:50:09.32
IV.AIO.HHN. ML:2.3 0.0007859210999999999 0.64 AML other m 2018-05-27T21:50:09.88
IV.HLNI.HHN. ML:1.7 0.00016895365 0.32 AML other m 2018-05-27T21:50:09.57
IV.GALF.HNN. ML:1.8 0.00029365470000000004 0.6144 AML other m 2018-05-27T21:50:09.61
IV.MNO.SHN. ML:0.0 0.0012567224 0.7552 AML other m 2018-05-27T21:50:09.54
IV.MUCR.HHN. ML:2.2 0.0006322182000000001 1.4368 AML other m 2018-05-27T21:50:09.93
IV.MPNC.HHE. ML:2.5 0.0006235295000000001 0.4352 AML other m 2018-05-27T21:50:11.42
IV.MUCR.HHE. ML:2.1 0.00050743705 0.4864 AML other m 2018-05-27T21:50:12.43
IV.MPNC.HHN. ML:2.6 0.00080972565 0.6528 AML other m 2018-05-27T21:50:12.78
IV.SSY.HHN. ML:2.6 0.0008263979500000001 0.2688 AML other m 2018-05-27T21:50:14.18
IV.SSY.HHE. ML:2.3 0.00034500274999999995 0.3456 AML other m 2018-05-27T21:50:14.20
IV.MEU.SHN. ML:0.0 0.00039528429999999997 0.2688 AML other m 2018-05-27T21:50:15.66
IV.MEU.SHE. ML:0.0 0.00024849895 0.32 AML other m 2018-05-27T21:50:18.18
MN.CEL.HHE. ML:1.9 0.00007988975500000001 1.616 AML other m 2018-05-27T21:50:25.05
MN.CEL.HNE. ML:1.9 0.000074284405 1.5648 AML other m 2018-05-27T21:50:25.07
IV.HPAC.HHE. ML:2.4 0.00021516535 0.6784 AML other m 2018-05-27T21:50:27.53
MN.CEL.HHN. ML:1.9 0.000074764155 0.5504 AML other m 2018-05-27T21:50:28.42
IV.HPAC.HHN. ML:2.5 0.0002525354 0.8192 AML other m 2018-05-27T21:50:33.90
MN.CEL.HNN. ML:2.0 0.000095416445 1.0656 AML other m 2018-05-27T21:50:43.23
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