Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.6 on date 21-06-2020 and time 22:23:55 (Italy) in region 6 km S Bronte (CT)

A magnitude ML 2.6 earthquake occured in region: 6 km S Bronte (CT), on

  • 21-06-2020 20:23:55 (UTC)
  • 21-06-2020 22:23:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7400, 14.8500 at 30 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 6 19172 19172
Adrano CT 9 36122 55294
Maletto CT 10 3920 59214
Biancavilla CT 11 24007 83221
Santa Maria di Licodia CT 14 7641 90862
Maniace CT 14 3765 94627
Ragalna CT 15 3924 98551
Centuripe EN 16 5470 104021
Cesarò ME 17 2439 106460
Randazzo CT 18 10900 117360
San Teodoro ME 18 1403 118763
Paternò CT 19 48228 166991
Belpasso CT 20 28108 195099

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km W of Acireale (52622 inhabitants)
34 Km NW of Catania (314555 inhabitants)
75 Km E of Caltanissetta (63360 inhabitants)
80 Km SW of Messina (238439 inhabitants)
81 Km SW of Reggio di Calabria (183035 inhabitants)
85 Km NW of Siracusa (122291 inhabitants)
91 Km N of Ragusa (73313 inhabitants)
92 Km NE of Gela (75827 inhabitants)
92 Km N of Vittoria (63339 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 2.6 2020-06-21
20:23:55		 37.7405 14.8503 30 2020-11-19
12:37:05		 Bollettino Sismico Italiano INGV 83881701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-21 20:23:55 ± 0.09
Latitude 37.7405 ± 0.0045
Longitude 14.8503 ± 0.0080
Depth (km) 30 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83881701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 620
Semi-minor axis of confidence ellipse (meter) 354
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 291
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 32
Number of associated phases, regardless of their use for origin computation 66
Number of defining phases 66
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) 0.07374
Epicentral distance of station farthest from the epicenter (degree) 1.98390
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 44
Magnitude information

ML:2.6

Field Value
Value 2.6
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 83881701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-18 11:19:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CET2.HHZ. 2020-06-21T20:24:27.76 0.3 undecidable manual P 25 220.2129 54 0.16 39
IV.CROCE.HHZ. 2020-06-21T20:24:26.63 0.3 undecidable manual S 196 104.5176 102 0.46 59
IV.CAR1.HHZ. 2020-06-21T20:24:25.67 0.3 undecidable manual P 35 205.239 54 -0.06 44
IV.IFIL.HHZ. 2020-06-21T20:24:23.75 0.6 undecidable manual S 345 94.4388 103 0.19 42
IV.IVPL.HHZ. 2020-06-21T20:24:18.31 0.3 undecidable manual S 9 71.4729 108 0.69 57
IV.RAFF.HHZ. 2020-06-21T20:24:18.57 0.6 undecidable manual S 217 71.7726 108 0.87 36
IV.MEU.EHZ. 2020-06-21T20:24:17.53 0.6 undecidable manual S 181 69.8745 108 0.31 44
IV.HVZN.HNZ. 2020-06-21T20:24:16.46 0.6 undecidable manual S 191 63.492 110 0.85 37
IV.JOPP.HHZ. 2020-06-21T20:24:16.91 0.6 undecidable manual P 43 131.868 54 0.31 38
IV.MPNC.HHZ. 2020-06-21T20:24:15.84 1.0 undecidable manual S 44 62.8926 110 0.36 22
MN.CEL.HHZ. 2020-06-21T20:24:14.08 0.6 undecidable manual P 57 107.9142 54 0.46 39
IV.HPAC.HHZ. 2020-06-21T20:24:14.54 0.3 undecidable manual P 172 115.6953 54 -0.04 63
IV.HAGA.HHZ. 2020-06-21T20:24:14.11 0.3 undecidable manual S 152 57.1983 112 0.06 71
IV.CLTA.HHZ. 2020-06-21T20:24:13.49 0.6 undecidable manual P 231 101.4207 102 0.83 34
IV.CROCE.HHZ. 2020-06-21T20:24:12.68 0.1 undecidable manual P 196 104.5176 102 -0.44 79
IV.SCIAR.HNZ. 2020-06-21T20:24:12.77 0.6 undecidable manual P 283 99.0231 102 0.48 39
IV.IFIL.HHZ. 2020-06-21T20:24:12.28 0.6 undecidable manual P 345 94.4388 103 0.67 37
IV.IACL.HHZ. 2020-06-21T20:24:11.56 0.3 undecidable manual P 334 97.9242 103 -0.58 58
IV.HLNI.HHZ. 2020-06-21T20:24:10.66 0.6 undecidable manual S 177 43.5231 120 -0.11 47
IV.AIO.HHZ. 2020-06-21T20:24:10.66 0.6 undecidable manual S 53 42.1245 120 0.2 47
IV.MSRU.HHZ. 2020-06-21T20:24:10.22 0.3 undecidable manual P 45 81.7515 105 0.51 60
IV.MSFR.HHZ. 2020-06-21T20:24:09.57 1.0 undecidable manual S 325 39.627 122 -0.31 23
IV.GIB.HHZ. 2020-06-21T20:24:09.90 0.6 undecidable manual P 291 77.367 106 0.84 35
IV.MTTG.HHZ. 2020-06-21T20:24:09.79 0.6 undecidable manual P 68 79.8645 106 0.35 42
IV.PLLN.EHZ. 2020-06-21T20:24:08.05 1.0 undecidable manual P 295 67.9764 109 0.37 21
IV.IVUG.HHZ. 2020-06-21T20:24:08.09 0.3 undecidable manual P 9 73.6707 107 -0.42 63
IV.PETRA.HHZ. 2020-06-21T20:24:08.14 0.6 undecidable manual P 279 65.2902 110 0.85 36
IV.IVPL.HHZ. 2020-06-21T20:24:08.05 0.3 undecidable manual P 9 71.4729 108 -0.14 68
IV.CPTP.HHZ. 2020-06-21T20:24:08.58 1.0 undecidable manual P 239 70.8735 108 0.47 21
IV.RAFF.HHZ. 2020-06-21T20:24:08.17 0.1 negative manual P 217 71.7726 108 -0.06 91
IV.EVRN.HHZ. 2020-06-21T20:24:07.06 0.6 undecidable manual S 103 25.6521 136 0.1 49
IV.IVGP.HHZ. 2020-06-21T20:24:07.97 0.6 undecidable manual P 8 73.4709 107 -0.51 41
IV.MPNC.HHZ. 2020-06-21T20:24:07.20 0.1 positive manual P 44 62.8926 110 0.25 89
IV.MEU.EHZ. 2020-06-21T20:24:07.66 0.1 positive manual P 181 69.8745 108 -0.3 87
IV.SSY.HHZ. 2020-06-21T20:24:07.43 0.1 negative manual P 163 67.5768 109 -0.19 89
IV.MUCR.HHZ. 2020-06-21T20:24:07.92 0.6 undecidable manual S 4 33.6441 127 -0.64 42
IV.ENIC.HNZ. 2020-06-21T20:24:06.29 0.3 undecidable manual S 129 19.2696 144 0.42 70
IV.GALF.HHZ. 2020-06-21T20:24:06.45 0.6 undecidable manual S 263 25.1526 136 -0.41 46
MN.VAE.HHZ. 2020-06-21T20:24:06.36 0.6 undecidable manual P 236 53.0025 114 0.82 38
IV.HVZN.HNZ. 2020-06-21T20:24:06.53 0.1 negative manual P 191 63.492 110 -0.5 84
IV.EMCN.HNZ. 2020-06-21T20:24:06.18 0.3 undecidable manual S 71 17.0718 148 0.65 65
IV.ECTS.HHZ. 2020-06-21T20:24:06.84 0.6 undecidable manual S 56 28.4493 132 -0.65 42
IV.ESLN.HHZ. 2020-06-21T20:24:05.07 0.3 undecidable manual S 116 12.0768 156 0.16 75
IV.HAGA.HHZ. 2020-06-21T20:24:05.72 0.1 negative manual P 152 57.1983 112 -0.41 87
IV.ECHR.HNZ. 2020-06-21T20:24:05.06 0.6 undecidable manual S 138 8.1807 163 0.52 47
IV.EMSG.HHZ. 2020-06-21T20:24:05.24 0.3 undecidable manual S 44 12.4764 155 0.29 73
IV.ESML.HHZ. 2020-06-21T20:24:05.88 0.6 undecidable manual S 169 13.7751 153 0.78 42
IT.LNT.HGZ. 2020-06-21T20:24:04.95 0.1 undecidable manual P 165 51.9036 115 -0.43 87
IV.EPZF.HHZ. 2020-06-21T20:24:04.46 0.6 undecidable manual S 4 9.2796 161 -0.17 50
IV.AIO.HHZ. 2020-06-21T20:24:04.26 0.3 undecidable manual P 53 42.1245 120 0.21 70
IV.CAGR.HHZ. 2020-06-21T20:24:03.75 0.3 undecidable manual P 247 33.4443 127 0.82 59
IV.EPOZ.HNZ. 2020-06-21T20:24:03.00 0.1 positive manual P 104 30.6471 130 0.41 91
IV.HLNI.HHZ. 2020-06-21T20:24:03.71 0.1 negative manual P 177 43.5231 120 -0.52 86
IV.MSFR.HHZ. 2020-06-21T20:24:03.07 0.3 undecidable manual P 325 39.627 122 -0.65 63
IV.ECTS.HHZ. 2020-06-21T20:24:02.06 0.1 positive manual P 56 28.4493 132 -0.28 94
IV.MUCR.HHZ. 2020-06-21T20:24:02.30 0.1 negative manual P 4 33.6441 127 -0.66 84
IV.EVRN.HHZ. 2020-06-21T20:24:02.75 0.3 undecidable manual P 103 25.6521 136 0.72 62
IV.EMCN.HNZ. 2020-06-21T20:24:01.29 0.1 negative manual P 71 17.0718 148 0.08 100
IV.ENIC.HNZ. 2020-06-21T20:24:01.45 0.6 undecidable manual P 129 19.2696 144 0.05 50
IV.EPIT.HHZ. 2020-06-21T20:24:01.51 0.3 undecidable manual P 66 19.7691 144 0.07 75
IV.GALF.HHZ. 2020-06-21T20:24:01.36 0.1 undecidable manual P 263 25.1526 136 -0.62 86
IV.EMSG.HHZ. 2020-06-21T20:24:00.33 0.1 negative manual P 44 12.4764 155 -0.54 91
IV.ESML.HHZ. 2020-06-21T20:24:00.56 0.6 undecidable manual P 169 13.7751 153 -0.4 47
IV.ESLN.HHZ. 2020-06-21T20:24:00.37 0.6 undecidable manual P 116 12.0768 156 -0.48 46
IV.ECHR.HNZ. 2020-06-21T20:24:00.10 0.6 undecidable manual P 138 8.1807 163 -0.53 46
IV.EPZF.HHZ. 2020-06-21T20:23:59.90 0.1 positive manual P 4 9.2796 161 -0.79 83
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:3.0 0.0044 0.7 AML other m 2020-06-21T20:24:05.71
IV.EMSG.HHN. ML:3.1 0.005849999999999999 0.4 AML other m 2020-06-21T20:24:05.55
IV.ESLN.HHN. ML:2.8 0.003085 1 AML other m 2020-06-21T20:24:06.09
IV.EPZF.HHN. ML:3.3 0.00917 0.32 AML other m 2020-06-21T20:24:06.06
IV.EMCN.HHN. ML:2.8 0.0028799999999999997 0.74 AML other m 2020-06-21T20:24:06.44
IV.EMCN.HNN. ML:2.8 0.0030099999999999997 0.54 AML other m 2020-06-21T20:24:06.44
IV.EMSG.HHE. ML:3.0 0.004705 0.82 AML other m 2020-06-21T20:24:06.86
IV.ESLN.HHE. ML:2.8 0.002885 1 AML other m 2020-06-21T20:24:07.25
IV.GALF.HHN. ML:2.7 0.0019399999999999999 0.4 AML other m 2020-06-21T20:24:07.94
IV.GALF.HNN. ML:1.9 0.0002945 0.46 AML other m 2020-06-21T20:24:07.72
IV.EVRN.HNE. ML:2.5 0.0012549999999999998 0.9 AML other m 2020-06-21T20:24:08.42
IV.ESML.HHN. ML:2.6 0.001795 0.86 AML other m 2020-06-21T20:24:08.26
IV.GALF.HHE. ML:2.9 0.002765 1.58 AML other m 2020-06-21T20:24:08.14
IV.GALF.HNE. ML:2.0 0.00039549999999999996 1.58 AML other m 2020-06-21T20:24:08.94
IV.EVRN.HNN. ML:2.6 0.00158 0.46 AML other m 2020-06-21T20:24:09.26
IV.EMCN.HNE. ML:2.9 0.00313 0.16 AML other m 2020-06-21T20:24:09.33
IV.EMCN.HHE. ML:2.9 0.00329 0.16 AML other m 2020-06-21T20:24:09.33
IV.MUCR.HHN. ML:0.0 0.000943 0.98 AML other m 2020-06-21T20:24:09.85
IV.EVRN.HHN. ML:2.6 0.0015249999999999999 0.6 AML other m 2020-06-21T20:24:10.03
IV.MUCR.HHE. ML:0.0 0.000549 0.64 AML other m 2020-06-21T20:24:10.56
IV.MSFR.HHN. ML:2.0 0.0002605 0.5 AML other m 2020-06-21T20:24:10.48
IV.AIO.HHE. ML:2.2 0.00038500000000000003 1.3 AML other m 2020-06-21T20:24:11.65
IV.EVRN.HHE. ML:2.6 0.0015 1.24 AML other m 2020-06-21T20:24:11.03
IV.MSFR.HHE. ML:1.9 0.0002055 0.48 AML other m 2020-06-21T20:24:11.50
IV.HLNI.HHN. ML:2.5 0.00078 1.84 AML other m 2020-06-21T20:24:12.94
IV.HLNI.HHE. ML:2.4 0.0005555 1.28 AML other m 2020-06-21T20:24:12.17
IV.CAGR.HHN. ML:2.6 0.0013700000000000001 1.36 AML other m 2020-06-21T20:24:12.11
IV.AIO.HHN. ML:2.4 0.000651 0.62 AML other m 2020-06-21T20:24:12.80
IV.CAGR.HHE. ML:2.5 0.0009265000000000001 1.4 AML other m 2020-06-21T20:24:14.76
IV.HAGA.HHN. ML:2.5 0.0006094999999999999 0.78 AML other m 2020-06-21T20:24:14.35
IV.HAGA.HHE. ML:2.5 0.0005765 0.38 AML other m 2020-06-21T20:24:14.45
IV.MPNC.HHN. ML:2.5 0.0004935 0.46 AML other m 2020-06-21T20:24:18.21
IV.MEU.EHN. ML:2.9 0.00125 0.34 AML other m 2020-06-21T20:24:19.00
IV.MPNC.HHE. ML:2.5 0.0005669999999999999 0.44 AML other m 2020-06-21T20:24:19.47
IV.MEU.EHE. ML:2.7 0.0008405 0.2 AML other m 2020-06-21T20:24:19.96
IV.RAFF.HHN. ML:2.4 0.000382 1.02 AML other m 2020-06-21T20:24:22.26
IV.IFIL.HHE. ML:3.4 0.002255 0.3 AML other m 2020-06-21T20:24:24.78
IV.IACL.HHE. ML:2.6 0.00033899999999999995 0.24 AML other m 2020-06-21T20:24:26.27
IV.RAFF.HHE. ML:2.5 0.00041400000000000003 0.44 AML other m 2020-06-21T20:24:26.41
IV.CROCE.HHN. ML:2.8 0.0005195 0.4 AML other m 2020-06-21T20:24:26.94
IV.CROCE.HNE. ML:2.9 0.000686 0.34 AML other m 2020-06-21T20:24:26.93
IV.CROCE.HHE. ML:2.8 0.000565 0.34 AML other m 2020-06-21T20:24:26.93
IV.IFIL.HHN. ML:3.0 0.00094 0.32 AML other m 2020-06-21T20:24:27.40
IV.CROCE.HNN. ML:2.9 0.000661 0.6 AML other m 2020-06-21T20:24:27.85
IV.IACL.HHN. ML:2.5 0.00032799999999999995 0.68 AML other m 2020-06-21T20:24:29.54
IV.CAR1.HHN. ML:2.5 0.0000781 1.2 AML other m 2020-06-21T20:24:50.79
IV.CAR1.HHE. ML:2.5 0.00007755 1.38 AML other m 2020-06-21T20:24:50.10
IV.ESML.HHE. ML:2.6 0.002032381 0.2688 AML other m 2020-06-21T20:24:10.33
IV.CET2.HHN. ML:2.5 0.0000817505 0.4736 AML other m 2020-06-21T20:24:58.52
IV.CET2.HHE. ML:2.6 0.00008895027 0.5504 AML other m 2020-06-21T20:24:53.66
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