Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.7 on date 23-10-2019 and time 15:59:10 (Italy) in region 8 km SW Bronte (CT)

A magnitude ML 2.7 earthquake occured in region: 8 km SW Bronte (CT), on

  • 23-10-2019 13:59:10 (UTC)
  • 23-10-2019 15:59:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7370, 14.7750 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.

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 8 19172 19172
Adrano CT 10 36122 55294
Maletto CT 13 3920 59214
Cesarò ME 13 2439 61653
Centuripe EN 13 5470 67123
Biancavilla CT 14 24007 91130
San Teodoro ME 14 1403 92533
Maniace CT 14 3765 96298
Regalbuto EN 15 7277 103575
Troina EN 16 9373 112948
Santa Maria di Licodia CT 17 7641 120589
Ragalna CT 19 3924 124513
Catenanuova EN 20 4866 129379

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km W of Acireale (52622 inhabitants)
38 Km NW of Catania (314555 inhabitants)
68 Km E of Caltanissetta (63360 inhabitants)
85 Km SW of Messina (238439 inhabitants)
87 Km SW of Reggio di Calabria (183035 inhabitants)
88 Km NE of Gela (75827 inhabitants)
88 Km NW of Siracusa (122291 inhabitants)
90 Km N of Vittoria (63339 inhabitants)
90 Km N of Ragusa (73313 inhabitants)
98 Km N of Modica (54633 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.7 2019-10-23
13:59:10		 37.7373 14.7752 26 2020-02-28
16:42:14		 Bollettino Sismico Italiano INGV 74735051
Reviewed
Rev100 		ML 2.7 2019-10-23
13:59:09		 37.751 14.7802 30 2019-10-23
14:15:47		 Sala Sismica INGV-Roma 73410341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-23 13:59:10 ± 0.18
Latitude 37.7373 ± 0.0054
Longitude 14.7752 ± 0.0091
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74735051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 799
Semi-minor axis of confidence ellipse (meter) 109
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 261
Circular confidence region, given by single value of horizontal uncertainty (meter) 800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 39
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 52
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.53
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.48928
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:2.7

Field Value
Value 2.7
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 73410341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-23 14:15:46

ML:2.7

Field Value
Value 2.7
Uncertainty 0.3
Num. used stations 45
Type of magnitude ML
Reference to an origin 74735051
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-17 15:09:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.CEL.HHZ. 2019-10-23T13:59:45.20 0.1 undecidable manual S 59 113.6973 98 1.73 40
IV.HPAC.HHZ. 2019-10-23T13:59:44.90 0.3 undecidable manual S 168 116.4945 98 0.7 55
IV.SPS2.HHZ. 2019-10-23T13:59:43.96 3.0 negative manual Pn 2.08 0
IV.ISPIC.EHZ. 2019-10-23T13:59:41.90 0.3 undecidable manual S 174 106.8153 99 0.27 62
IV.IACL.HHZ. 2019-10-23T13:59:39.40 0.6 undecidable manual S 338 95.5377 100 0.72 35
IV.PLAC.HHZ. 2019-10-23T13:59:37.53 0.1 undecidable manual P 61 165.3123 54 1.27 46
IV.MSRU.HHZ. 2019-10-23T13:59:36.70 0.3 undecidable manual S 47 86.7465 101 0.34 62
IV.IVPL.HHE. 2019-10-23T13:59:33.60 0.6 undecidable manual S 14 73.0713 103 0.8 35
IV.SSY.HHZ. 2019-10-23T13:59:32.40 0.1 undecidable manual S 158 69.4749 104 0.53 84
IV.RAFF.HHZ. 2019-10-23T13:59:32.20 1.0 undecidable manual S 213 67.6767 105 0.79 19
IV.PETRA.HHE. 2019-10-23T13:59:31.70 0.6 undecidable manual S 281 58.8966 107 2.56 9
IV.AGST.EHZ. 2019-10-23T13:59:30.80 0.1 undecidable manual S 143 66.5778 105 -0.31 86
MN.CEL.HHZ. 2019-10-23T13:59:29.50 0.1 undecidable manual P 59 113.6973 98 0.02 84
IV.HPAC.HHZ. 2019-10-23T13:59:29.44 0.1 negative manual P 168 116.4945 98 -0.46 76
IV.HAGA.HHZ. 2019-10-23T13:59:29.30 0.1 undecidable manual S 146 60.2952 107 -0.2 89
IV.CLTA.HHZ. 2019-10-23T13:59:27.47 0.1 undecidable manual P 228 96.2259 100 0.65 76
IV.ISPIC.EHZ. 2019-10-23T13:59:27.90 0.1 undecidable manual P 174 106.8153 99 -0.53 75
IV.AIO.HHZ. 2019-10-23T13:59:26.90 0.3 undecidable manual S 57 47.7189 112 0.56 63
IV.NOV.HHZ. 2019-10-23T13:59:26.00 0.3 undecidable manual S 44 45.1215 113 0.3 68
IV.HLNI.HHZ. 2019-10-23T13:59:25.60 0.3 undecidable manual S 169 44.0226 114 0.19 71
IV.MSRU.HHZ. 2019-10-23T13:59:25.92 0.1 undecidable manual P 47 86.7465 101 0.54 78
IV.IACL.HHZ. 2019-10-23T13:59:25.85 0.1 undecidable manual P 338 95.5377 100 -0.87 70
IV.ECTS.EHZ. 2019-10-23T13:59:24.10 0.1 undecidable manual S 62 34.3434 120 1 72
IV.GIB.HHE. 2019-10-23T13:59:23.60 0.6 undecidable manual P 293 71.373 104 0.54 41
IV.MSFR.HHZ. 2019-10-23T13:59:23.60 0.6 undecidable manual S 334 36.6411 119 -0.04 49
IV.PLLN.EHZ. 2019-10-23T13:59:23.03 0.1 undecidable manual P 297 62.1933 106 1.33 57
IV.EPIT.HHE. 2019-10-23T13:59:22.60 0.3 undecidable manual S 72 26.0517 129 1.32 47
IV.SSY.HHZ. 2019-10-23T13:59:22.30 0.1 negative manual P 158 69.4749 104 -0.49 82
IV.IVPL.HHE. 2019-10-23T13:59:22.84 0.1 undecidable manual P 14 73.0713 103 -0.49 84
IV.MUCR.HHZ. 2019-10-23T13:59:22.60 0.1 undecidable manual S 14 34.9428 120 -0.66 86
IV.RAFF.HHZ. 2019-10-23T13:59:22.62 0.1 positive manual P 213 67.6767 105 0.1 92
IV.AGST.EHZ. 2019-10-23T13:59:21.50 0.1 negative manual P 143 66.5778 105 -0.85 71
IV.PETRA.HHE. 2019-10-23T13:59:21.54 0.3 undecidable manual P 281 58.8966 107 0.33 66
IV.HAGA.HHZ. 2019-10-23T13:59:20.62 0.1 undecidable manual P 146 60.2952 107 -0.8 74
IV.MNO.SHZ. 2019-10-23T13:59:20.30 0.1 undecidable manual S 342 22.5552 134 -0.3 96
IV.GALF.HHZ. 2019-10-23T13:59:20.40 0.6 undecidable manual S 261 18.5703 140 0.55 45
IV.ECHR.HHE. 2019-10-23T13:59:20.30 0.6 undecidable manual S 115 13.3755 149 1.25 34
IV.AIO.HHZ. 2019-10-23T13:59:19.53 0.1 positive manual P 57 47.7189 112 -0.06 96
IV.NOV.HHZ. 2019-10-23T13:59:18.86 0.1 undecidable manual P 44 45.1215 113 -0.37 90
IV.HLNI.HHZ. 2019-10-23T13:59:18.47 0.1 negative manual P 169 44.0226 114 -0.59 83
IV.MSFR.HHZ. 2019-10-23T13:59:17.30 0.1 negative manual P 334 36.6411 119 -0.74 82
IV.MUCR.HHZ. 2019-10-23T13:59:17.00 0.1 positive manual P 14 34.9428 120 -0.82 80
IV.CAGR.HHZ. 2019-10-23T13:59:17.70 0.1 undecidable manual P 242 27.3504 127 0.86 78
IV.ECTS.EHZ. 2019-10-23T13:59:17.20 0.3 undecidable manual P 62 34.3434 120 -0.53 66
IV.EMCN.HNE. 2019-10-23T13:59:16.46 0.3 undecidable manual P 75 23.4543 132 0.09 74
IV.EPIT.HHE. 2019-10-23T13:59:16.84 0.1 positive manual P 72 26.0517 129 0.16 97
IV.EMSG.HHZ. 2019-10-23T13:59:15.42 0.1 positive manual P 59 17.871 141 -0.37 94
IV.ESLN.HHZ. 2019-10-23T13:59:15.60 0.1 undecidable manual P 106 18.1707 140 -0.21 97
IV.MNO.SHZ. 2019-10-23T13:59:15.53 0.1 undecidable manual P 342 22.5552 134 -0.75 83
IV.ECHR.HHE. 2019-10-23T13:59:15.18 0.1 undecidable manual P 115 13.3755 149 -0.21 98
IV.ESML.HHZ. 2019-10-23T13:59:15.56 0.1 undecidable manual P 145 16.0728 144 -0.06 100
IV.GALF.HHZ. 2019-10-23T13:59:15.46 0.1 undecidable manual P 261 18.5703 140 -0.39 94
IV.EPZF.HHZ. 2019-10-23T13:59:14.73 0.1 positive manual P 37 11.9769 152 -0.55 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:0.0 0.0028734320000000004 0.6016 AML other m 2019-10-23T13:59:19.83
IV.MNO.SHN. ML:0.0 0.00336 1.36 AML other m 2019-10-23T13:59:20.04
IV.MNO.SHE. ML:0.0 0.0015113989999999999 0.48 AML other m 2019-10-23T13:59:20.84
IV.GALF.HHN. ML:0.0 0.0031268845 0.6016 AML other m 2019-10-23T13:59:21.82
IV.EPZF.HHN. ML:0.0 0.004165874500000001 0.2816 AML other m 2019-10-23T13:59:21.59
IV.GALF.HNN. ML:0.0 0.0005513784000000001 0.4992 AML other m 2019-10-23T13:59:21.82
IV.GALF.HHE. ML:0.0 0.004376654000000001 0.2816 AML other m 2019-10-23T13:59:21.83
IV.GALF.HNE. ML:0.0 0.0004930353000000001 0.4096 AML other m 2019-10-23T13:59:22.60
IV.ESML.HHE. ML:0.0 0.002134942 0.256 AML other m 2019-10-23T13:59:22.79
IV.MUCR.HHE. ML:0.0 0.001326693 0.32 AML other m 2019-10-23T13:59:23.94
IV.EMSG.HHN. ML:0.0 0.00509291 0.4224 AML other m 2019-10-23T13:59:23.09
IV.ESLN.HHE. ML:0.0 0.0026266144999999995 0.32 AML other m 2019-10-23T13:59:23.56
IV.EMSG.HHE. ML:0.0 0.0041054455 0.32 AML other m 2019-10-23T13:59:25.67
IV.MUCR.HHN. ML:0.0 0.0014155424999999998 0.3008 AML other m 2019-10-23T13:59:23.49
IV.ECTS.EHN. ML:0.0 0.0009500581500000001 0.2752 AML other m 2019-10-23T13:59:24.50
IV.ECTS.EHE. ML:0.0 0.00075441605 0.7424 AML other m 2019-10-23T13:59:24.31
IV.ESLN.HHN. ML:0.0 0.0026846705000000003 0.32 AML other m 2019-10-23T13:59:25.63
IV.ESML.HHN. ML:0.0 0.00206 0.24 AML other m 2019-10-23T13:59:25.72
IV.HLNI.HHN. ML:0.0 0.0026246140000000004 0.1408 AML other m 2019-10-23T13:59:26.26
IV.HLNI.HHE. ML:0.0 0.0021315445 0.1408 AML other m 2019-10-23T13:59:26.33
IV.CAGR.HHE. ML:0.0 0.0012005 0.62 AML other m 2019-10-23T13:59:27.47
IV.CAGR.HHN. ML:0.0 0.0017251585 0.7616 AML other m 2019-10-23T13:59:26.81
IV.NOV.HHE. ML:0.0 0.0014199999999999998 0.6 AML other m 2019-10-23T13:59:27.73
IV.NOV.HHN. ML:0.0 0.0019301780000000003 0.256 AML other m 2019-10-23T13:59:28.09
IV.AIO.HHE. ML:0.0 0.00039178995 0.3584 AML other m 2019-10-23T13:59:27.59
IV.HAGA.HHN. ML:0.0 0.00069616915 0.1408 AML other m 2019-10-23T13:59:29.90
IV.HAGA.HHE. ML:0.0 0.00078218305 0.16 AML other m 2019-10-23T13:59:29.89
IV.AGST.EHN. ML:0.0 0.0016799999999999999 0.24 AML other m 2019-10-23T13:59:31.08
IV.AGST.EHE. ML:0.0 0.0019250000000000003 0.42 AML other m 2019-10-23T13:59:31.29
IV.AIO.HHN. ML:0.0 0.0005079284 0.2752 AML other m 2019-10-23T13:59:31.56
IV.PLLN.EHN. ML:0.0 0.0008922989999999999 0.4608 AML other m 2019-10-23T13:59:35.84
IV.PLLN.EHE. ML:0.0 0.0007488924 0.5632 AML other m 2019-10-23T13:59:36.88
IV.RAFF.HHE. ML:0.0 0.0003311826 0.4992 AML other m 2019-10-23T13:59:37.18
IV.RAFF.HHN. ML:0.0 0.0002960789 0.4224 AML other m 2019-10-23T13:59:40.12
IV.MSRU.HHE. ML:0.0 0.00047713915 0.32 AML other m 2019-10-23T13:59:40.44
IV.MSRU.HHN. ML:0.0 0.0004323054 0.2816 AML other m 2019-10-23T13:59:40.20
IV.IACL.HHE. ML:0.0 0.0004509688 0.3776 AML other m 2019-10-23T13:59:40.83
IV.ISPIC.HNN. ML:0.0 0.00158 0.26 AML other m 2019-10-23T13:59:42.61
IV.ISPIC.EHN. ML:0.0 0.001565 0.28 AML other m 2019-10-23T13:59:42.61
IV.ISPIC.EHE. ML:0.0 0.0009976462 0.1984 AML other m 2019-10-23T13:59:42.86
IV.ISPIC.HNE. ML:0.0 0.00099873955 0.1792 AML other m 2019-10-23T13:59:42.86
IV.IACL.HHN. ML:0.0 0.00028291345 0.2816 AML other m 2019-10-23T13:59:43.66
MN.CEL.HHE. ML:0.0 0.000093445455 0.3008 AML other m 2019-10-23T13:59:46.14
IV.HPAC.HHE. ML:0.0 0.00058570095 0.1984 AML other m 2019-10-23T13:59:48.23
IV.HPAC.HHN. ML:0.0 0.0006158297500000001 0.1792 AML other m 2019-10-23T13:59:49.10
MN.CEL.HHN. ML:0.0 0.00011641020500000001 0.6016 AML other m 2019-10-23T13:59:52.11
IV.MSFR.HHE. ML:0.0 0.00024499945 0.32 AML other m 2019-10-23T13:59:25.89
IV.MSFR.HHN. ML:0.0 0.0002651425 0.5184 AML other m 2019-10-23T13:59:25.37
IV.SSY.HHN. ML:0.0 0.013858539999999999 0.2432 AML other m 2019-10-23T13:59:34.14
IV.SSY.HHE. ML:0.0 0.00496 0.38 AML other m 2019-10-23T13:59:35.34
MN.CEL.HNE. ML:2.3 0.00014396985000000002 0.6016 AML other m 2019-10-23T13:59:46.15
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
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