Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 28-08-2018 and time 13:20:03 (Italy) in region 7 km E Bronte (CT)

A magnitude ML 2.1 earthquake occured in region: 7 km E Bronte (CT), on

  • 28-08-2018 11:20:03 (UTC)
  • 28-08-2018 13:20:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7600, 14.9060 at 26 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 7 19172 19172
Maletto CT 9 3920 23092
Adrano CT 13 36122 59214
Biancavilla CT 14 24007 83221
Randazzo CT 14 10900 94121
Maniace CT 14 3765 97886
Ragalna CT 15 3924 101810
Santa Maria di Licodia CT 16 7641 109451
Santa Domenica Vittoria ME 18 980 110431
Zafferana Etnea CT 19 9517 119948
Milo CT 19 1087 121035
Nicolosi CT 19 7463 128498
Cesarò ME 19 2439 130937
Belpasso CT 20 28108 159045

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NW of Acireale (52622 inhabitants)
33 Km NW of Catania (314555 inhabitants)
75 Km SW of Messina (238439 inhabitants)
76 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km E of Caltanissetta (63360 inhabitants)
85 Km NW of Siracusa (122291 inhabitants)
94 Km N of Ragusa (73313 inhabitants)
96 Km NE of Vittoria (63339 inhabitants)
96 Km NE of Gela (75827 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 2.1 2018-08-28
11:20:03		 37.7602 14.9057 26 2019-04-24
14:50:54		 Bollettino Sismico Italiano INGV 60406901
Reviewed
Rev100 		ML 2.1 2018-08-28
11:20:03		 37.7557 14.9 26 2018-08-28
11:35:12		 Sala Sismica INGV-Roma 60291351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-28 11:20:03 ± 0.1
Latitude 37.7602 ± 0.0045
Longitude 14.9057 ± 0.0080
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 60406901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 728
Semi-minor axis of confidence ellipse (meter) 78
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 293
Circular confidence region, given by single value of horizontal uncertainty (meter) 730.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.38855
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 35
Type of magnitude ML
Reference to an origin 60406901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-08-31 05:35:17

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 60291351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-28 11:35:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ACER.HHZ. 2018-08-28T11:21:32.01 3.0 undecidable manual Sn 2.84 0
IV.SPS2.HHZ. 2018-08-28T11:20:58.64 3.0 undecidable manual Sn -0.48 0
IV.SPS2.HHZ. 2018-08-28T11:20:36.12 3.0 negative manual Pn 1.17 0
IV.CLTA.HHZ. 2018-08-28T11:20:35.34 0.3 undecidable manual S 231 106.6155 99 0.34 60
IV.CROCE.HHZ. 2018-08-28T11:20:35.48 0.3 undecidable manual S 198 108.0141 99 0.11 62
IV.CAR1.HHZ. 2018-08-28T11:20:33.60 3.0 undecidable manual P 0
IV.HMDC.HHZ. 2018-08-28T11:20:30.79 0.1 undecidable manual S 187 89.5437 101 0.28 83
IV.PLAC.HHZ. 2018-08-28T11:20:28.98 0.3 undecidable manual P 60 154.1346 54 0.69 46
IV.MSRU.HHZ. 2018-08-28T11:20:27.75 0.3 undecidable manual S 43 76.7676 103 0.57 59
IV.MPNC.HHZ. 2018-08-28T11:20:23.12 0.1 undecidable manual S 42 57.9975 107 0.79 75
IV.HAGA.HHZ. 2018-08-28T11:20:22.08 0.1 undecidable manual S 157 57.0984 108 -0.02 94
IV.CLTA.HHZ. 2018-08-28T11:20:22.06 0.3 undecidable manual P 231 106.6155 99 0.24 61
IV.CROCE.HHZ. 2018-08-28T11:20:21.92 0.3 undecidable manual P 198 108.0141 99 -0.1 63
IV.HLNI.HHZ. 2018-08-28T11:20:19.04 0.1 undecidable manual S 184 45.7209 113 -0.22 92
IV.HMDC.HHZ. 2018-08-28T11:20:18.90 0.1 undecidable manual P 187 89.5437 101 -0.32 83
IV.AIO.HHZ. 2018-08-28T11:20:17.01 0.1 undecidable manual S 51 37.0296 118 -0.13 95
IV.RAFF.HHZ. 2018-08-28T11:20:17.21 0.1 undecidable manual P 219 76.4679 103 -0.03 90
IV.MSRU.HHZ. 2018-08-28T11:20:17.83 0.1 undecidable manual P 43 76.7676 103 0.53 80
IV.CSLB.HHZ. 2018-08-28T11:20:17.74 0.1 undecidable manual P 285 76.7676 103 0.44 82
IV.GALF.HHZ. 2018-08-28T11:20:16.07 0.1 undecidable manual S 260 30.2475 124 0.47 90
IV.NOV.HHZ. 2018-08-28T11:20:16.52 0.1 undecidable manual S 34 35.9418 119 -0.37 90
IV.PETRA.HHZ. 2018-08-28T11:20:15.91 0.3 undecidable manual P 277 69.7746 104 -0.34 64
IV.MUCR.HHZ. 2018-08-28T11:20:15.61 0.1 undecidable manual S 355 31.4463 123 -0.26 92
IV.MPNC.HHZ. 2018-08-28T11:20:14.45 0.1 undecidable manual P 42 57.9975 107 -0.05 93
IV.HAGA.HHZ. 2018-08-28T11:20:13.84 0.1 undecidable manual P 157 57.0984 108 -0.52 84
IV.ESML.HHZ. 2018-08-28T11:20:13.43 0.1 undecidable manual S 188 15.9729 144 0.6 90
IV.ESLN.HHZ. 2018-08-28T11:20:12.27 0.1 undecidable manual S 141 9.5793 157 0.28 98
IV.HLNI.HHZ. 2018-08-28T11:20:12.30 0.1 undecidable manual P 184 45.7209 113 -0.42 88
IV.NOV.HHZ. 2018-08-28T11:20:11.08 0.1 undecidable manual P 34 35.9418 119 -0.28 92
IV.EPZF.HHZ. 2018-08-28T11:20:11.79 0.1 undecidable manual S 329 8.2806 160 -0.08 99
IV.AIO.HHZ. 2018-08-28T11:20:11.58 0.1 undecidable manual P 51 37.0296 118 0.08 96
IV.MUCR.HHZ. 2018-08-28T11:20:10.28 0.1 undecidable manual P 355 31.4463 123 -0.49 89
IV.GALF.HHZ. 2018-08-28T11:20:10.47 0.1 undecidable manual P 260 30.2475 124 -0.14 95
IV.EPOZ.HHZ. 2018-08-28T11:20:10.38 0.1 undecidable manual P 111 26.6511 128 0.21 95
IV.ESML.HHZ. 2018-08-28T11:20:09.09 0.1 undecidable manual P 188 15.9729 144 0.08 100
IV.ESLN.HHZ. 2018-08-28T11:20:08.31 0.1 undecidable manual P 141 9.5793 157 -0.22 97
IV.EMCN.HNZ. 2018-08-28T11:20:08.61 0.1 undecidable manual P 73 11.7771 152 -0.06 100
IV.EPZF.HHZ. 2018-08-28T11:20:07.81 0.1 undecidable manual P 329 8.2806 160 -0.65 86
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESLN.HHE. ML:2.3 0.0011563965 0.2368 AML other m 2018-08-28T11:20:15.19
IV.EMCN.HNE. ML:2.4 0.0013701505 0.288 AML other m 2018-08-28T11:20:14.97
IV.ESML.HHE. ML:2.3 0.0010718261500000002 0.256 AML other m 2018-08-28T11:20:15.88
IV.MUCR.HHE. ML:1.8 0.00024099965000000002 0.3392 AML other m 2018-08-28T11:20:17.34
IV.MUCR.HHN. ML:1.8 0.00024419759999999997 0.3776 AML other m 2018-08-28T11:20:17.63
IV.EPOZ.HHE. ML:2.3 0.0008883215 0.416 AML other m 2018-08-28T11:20:17.53
IV.GALF.HHE. ML:2.6 0.0014032675 0.4224 AML other m 2018-08-28T11:20:17.03
IV.GALF.HNE. ML:2.1 0.00045339305 0.7744 AML other m 2018-08-28T11:20:17.04
IV.GALF.HNN. ML:1.9 0.00030241175 0.3712 AML other m 2018-08-28T11:20:17.74
IV.GALF.HHN. ML:2.5 0.0010718429999999998 0.3776 AML other m 2018-08-28T11:20:17.74
IV.AIO.HHN. ML:2.0 0.00028082405 0.2816 AML other m 2018-08-28T11:20:18.66
IV.AIO.HHE. ML:2.0 0.00028628454999999996 0.4032 AML other m 2018-08-28T11:20:18.18
IV.HLNI.HHE. ML:2.1 0.0003230357 0.1024 AML other m 2018-08-28T11:20:19.96
IV.HLNI.HHN. ML:2.1 0.00029181884999999997 0.1984 AML other m 2018-08-28T11:20:20.29
IV.HAGA.HHE. ML:2.0 0.00018965718000000002 0.1216 AML other m 2018-08-28T11:20:22.87
IV.HAGA.HHN. ML:2.0 0.00019376535 0.1024 AML other m 2018-08-28T11:20:22.48
IV.MPNC.HHE. ML:2.4 0.00043175114999999996 0.48 AML other m 2018-08-28T11:20:23.81
IV.MPNC.HHN. ML:2.4 0.0005130710499999999 0.32 AML other m 2018-08-28T11:20:23.76
IV.PETRA.HHN. ML:1.8 0.00010587400499999999 0.5184 AML other m 2018-08-28T11:20:32.44
IV.RAFF.HHE. ML:1.8 0.00009114593500000001 0.2432 AML other m 2018-08-28T11:20:30.66
IV.MSRU.HHN. ML:2.0 0.0001535362 0.3648 AML other m 2018-08-28T11:20:29.76
IV.MSRU.HHE. ML:2.3 0.0002570764 0.5376 AML other m 2018-08-28T11:20:30.84
IV.HMDC.HHE. ML:2.3 0.0002262023 0.2368 AML other m 2018-08-28T11:20:31.62
IV.HMDC.HHN. ML:2.2 0.00017868845 0.2624 AML other m 2018-08-28T11:20:33.60
IV.CROCE.HHE. ML:2.1 0.000114152735 0.2624 AML other m 2018-08-28T11:20:36.23
IV.CROCE.HHN. ML:2.1 0.000103276765 0.4416 AML other m 2018-08-28T11:20:36.18
IV.CLTA.HHE. ML:1.9 0.000075056755 0.4992 AML other m 2018-08-28T11:20:40.28
MN.CEL.HNN. ML:2.0 0.000087515085 0.4992 AML other m 2018-08-28T11:20:40.27
MN.CEL.HHN. ML:2.0 0.00008900462 0.4992 AML other m 2018-08-28T11:20:40.27
MN.CEL.HHE. ML:1.8 0.000052772525 0.384 AML other m 2018-08-28T11:20:39.38
IV.PLAC.HHN. ML:2.2 0.000069275265 0.5184 AML other m 2018-08-28T11:20:53.10
IV.PLAC.HNE. ML:2.2 0.000080560285 0.5376 AML other m 2018-08-28T11:20:53.10
IV.PLAC.HHE. ML:2.1 0.000054685579999999996 0.3392 AML other m 2018-08-28T11:20:54.36
IV.CAR1.HHN. ML:2.1 0.000038688250000000004 0.5376 AML other m 2018-08-28T11:21:04.45
IV.CAR1.HHE. ML:2.3 0.00006013394 0.6208 AML other m 2018-08-28T11:21:08.22
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