Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 28-10-2013 and time 18:44:15 (Italy) in region 5 km E Bronte (CT)

A magnitude ML 1.6 earthquake occured in region: 5 km E Bronte (CT), on

  • 28-10-2013 17:44:15 (UTC)
  • 28-10-2013 18:44:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7850, 14.8950 at 32 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 5 19172 19172
Maletto CT 6 3920 23092
Randazzo CT 11 10900 33992
Maniace CT 12 3765 37757
Adrano CT 15 36122 73879
Santa Domenica Vittoria ME 16 980 74859
Biancavilla CT 16 24007 98866
Cesarò ME 17 2439 101305
Ragalna CT 18 3924 105229
San Teodoro ME 19 1403 106632
Moio Alcantara ME 19 717 107349
Santa Maria di Licodia CT 19 7641 114990
Roccella Valdemone ME 19 666 115656

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of Acireale (52622 inhabitants)
36 Km NW of Catania (314555 inhabitants)
74 Km SW of Messina (238439 inhabitants)
75 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km E of Caltanissetta (63360 inhabitants)
88 Km NW of Siracusa (122291 inhabitants)
97 Km N of Ragusa (73313 inhabitants)
98 Km NE of Vittoria (63339 inhabitants)
98 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 1.6 2013-10-28
17:44:15		 37.785 14.8953 32 2015-01-20
11:29:32		 Bollettino Sismico Italiano INGV 8349721
Reviewed
Rev100 		ML 1.7 2013-10-28
17:44:15		 37.7918 14.8952 34 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 4756131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-10-28 17:44:15 ± 0.19
Latitude 37.7850 ± 0.0045
Longitude 14.8953 ± 0.0091
Depth (km) 32 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 8349721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 760
Semi-minor axis of confidence ellipse (meter) 426
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 760.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.21494
Epicentral distance of station farthest from the epicenter (degree) 0.84446
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 8349721
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:29:09

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 4756131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-10-28 17:52:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2013-10-28T17:44:43.90 0.3 undecidable manual S 168 93.7395 104 0.08 67
IV.HAGA.HHZ. 2013-10-28T17:44:35.30 0.6 undecidable manual S 158 59.9955 113 0.04 48
IV.HLNI.HHZ. 2013-10-28T17:44:32.10 0.6 undecidable manual S 182 48.5181 118 -0.38 46
IV.HAVL.HHZ. 2013-10-28T17:44:31.73 0.3 undecidable manual P 168 93.7395 104 -0.19 66
IV.MCPD.HHZ. 2013-10-28T17:44:30.60 0.6 undecidable manual S 339 39.8268 124 0.1 50
IV.MCSR.HHZ. 2013-10-28T17:44:30.50 0.6 undecidable manual S 43 42.624 122 -0.64 43
IV.AIO.HHE. 2013-10-28T17:44:29.92 0.6 undecidable manual S 55 36.0417 127 0.24 48
IV.SSY.HHZ. 2013-10-28T17:44:28.51 0.6 undecidable manual P 167 71.373 109 -0.1 47
IV.GALF.HHZ. 2013-10-28T17:44:28.61 0.6 undecidable manual S 254 30.0477 133 0.17 50
IV.MNO.SHZ. 2013-10-28T17:44:27.14 0.6 undecidable manual S 313 23.8539 140 -0.16 50
IV.HAGA.HHZ. 2013-10-28T17:44:26.77 0.1 undecidable manual P 158 59.9955 113 -0.2 93
IV.MPNC.HHE. 2013-10-28T17:44:26.69 0.3 undecidable manual P 45 56.5989 114 0.19 71
IV.HLNI.HHZ. 2013-10-28T17:44:25.15 0.1 undecidable manual P 182 48.5181 118 -0.22 95
IV.MCPD.HHZ. 2013-10-28T17:44:24.19 0.3 undecidable manual P 339 39.8268 124 -0.04 75
IV.MCSR.HHZ. 2013-10-28T17:44:24.61 0.1 undecidable manual P 43 42.624 122 0.01 100
IV.AIO.HHE. 2013-10-28T17:44:23.87 0.1 undecidable manual P 55 36.0417 127 0.11 99
IV.GALF.HHZ. 2013-10-28T17:44:23.35 0.1 undecidable manual P 254 30.0477 133 0.31 97
IV.ECNV.HHE. 2013-10-28T17:44:23.50 0.6 undecidable manual P 217 26.4513 136 0.85 41
IV.EPOZ.HHZ. 2013-10-28T17:44:23.23 0.3 undecidable manual P 116 28.6491 134 0.35 72
IV.NOV.HHE. 2013-10-28T17:44:23.38 0.6 undecidable manual P 38 34.2435 128 -0.15 49
IV.MUCR.HHZ. 2013-10-28T17:44:22.57 0.1 undecidable manual P 356 28.6491 134 -0.32 96
IV.MNO.SHZ. 2013-10-28T17:44:22.43 0.3 undecidable manual P 313 23.8539 140 0.05 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:1.6 0.0001295 0.74 AML other m 2013-10-28T17:44:31.56
IV.GALF.HHN. ML:1.7 0.00016849999999999998 0.54 AML other m 2013-10-28T17:44:32.07
IV.HAGA.HHN. ML:1.8 0.00010625 1.24 AML other m 2013-10-28T17:44:29.17
IV.HAGA.HHE. ML:1.8 0.00010059999999999999 0.7 AML other m 2013-10-28T17:44:39.53
IV.HLNI.HHN. ML:1.8 0.000125 0.64 AML other m 2013-10-28T17:44:34.28
IV.HLNI.HHE. ML:1.8 0.00014700000000000002 0.12 AML other m 2013-10-28T17:44:33.93
IV.MCPD.HHN. ML:1.2 0.000043299999999999995 1.5 AML other m 2013-10-28T17:44:32.86
IV.MCPD.HHE. ML:1.4 0.0000629 0.36 AML other m 2013-10-28T17:44:32.17
IV.MCSR.HHE. ML:2.0 0.000261 0.26 AML other m 2013-10-28T17:44:33.71
IV.MCSR.HHN. ML:1.8 0.00016749999999999998 1.58 AML other m 2013-10-28T17:44:33.05
IV.MNO.SHE. ML:1.5 0.0001235 0.64 AML other m 2013-10-28T17:44:34.61
IV.MNO.SHN. ML:1.7 0.00018449999999999999 0.72 AML other m 2013-10-28T17:44:29.25
IV.MUCR.HHE. ML:1.4 0.00007735 0.44 AML other m 2013-10-28T17:44:32.36
IV.MUCR.HHN. ML:1.4 0.0000783 1.02 AML other m 2013-10-28T17:44:31.57
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