Earthquake with magnitude of ML 3.0 on date 17-10-2020 and time 14:11:23 (Italy) in region 6 km NW Troina (EN)

A magnitude ML 3.0 earthquake occured in region: 6 km NW Troina (EN), on

  • 17-10-2020 12:11:23 (UTC)
  • 17-10-2020 14:11:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8330, 14.5720 at 36 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Troina EN 6 9373 9373
Cerami EN 6 2006 11379
Capizzi ME 8 3176 14555
San Teodoro ME 11 1403 15958
Cesarò ME 12 2439 18397
Gagliano Castelferrato EN 14 3593 21990
Nicosia EN 18 13899 35889
Agira EN 20 8345 44234

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km W of Acireale (52622 inhabitants)
58 Km NW of Catania (314555 inhabitants)
59 Km NE of Caltanissetta (63360 inhabitants)
90 Km NE of Gela (75827 inhabitants)
95 Km W of Messina (238439 inhabitants)
97 Km E of Bagheria (55387 inhabitants)
98 Km N of Vittoria (63339 inhabitants)
99 Km W of Reggio di Calabria (183035 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 3.0 2020-10-17
12:11:23
37.8328 14.5723 36 2021-02-26
14:55:59
Bollettino Sismico Italiano INGV 83885521
Reviewed
Rev100
ML 2.9 2020-10-17
12:11:24
37.8577 14.5727 30 2020-10-17
12:18:45
Sala Sismica INGV-Roma 83848791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-17 12:11:23 ± 0.09
Latitude 37.8328 ± 0.0072
Longitude 14.5723 ± 0.0080
Depth (km) 36 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83885521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 738
Semi-minor axis of confidence ellipse (meter) 710
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 347
Circular confidence region, given by single value of horizontal uncertainty (meter) 740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.19250
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 34
Magnitudes information

ML:3.0

Field Value
Value 3.0
Uncertainty 0.2
Num. used stations 58
Type of magnitude ML
Reference to an origin 83885521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-09 16:06:25

ML:2.9

Field Value
Value 2.9
Uncertainty 0.3
Num. used stations 80
Type of magnitude ML
Reference to an origin 83848791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-17 12:18:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HNZ. 2020-10-17T12:13:09.67 3.0 undecidable manual Sg 12.19 0
IV.PZUN.HHZ. 2020-10-17T12:12:08.96 3.0 negative manual Pn 0.01 0
IV.SGO.HHZ. 2020-10-17T12:12:04.45 3.0 undecidable manual Pn -1.93 0
XK.GIZZ.HHZ. 2020-10-17T12:11:52.66 3.0 negative manual Pn 0.75 0
IV.CRJA.HHZ. 2020-10-17T12:11:48.47 3.0 negative manual Pg 3.6 0
IV.SOI.EHZ. 2020-10-17T12:11:45.09 0.3 undecidable manual P 78 132.3675 54 0.79 51
IV.HPAC.HHZ. 2020-10-17T12:11:44.80 0.3 undecidable manual P 162 131.2686 54 0.62 55
MN.CEL.HHZ. 2020-10-17T12:11:43.69 0.3 undecidable manual P 67 124.7862 54 0.32 60
IV.HAVL.HHZ. 2020-10-17T12:11:41.08 0.3 undecidable manual P 153 108.3138 54 -0.24 63
IV.PLLN.EHZ. 2020-10-17T12:11:40.16 0.6 undecidable manual S 295 41.5251 127 0.74 40
IV.CSLB.HHZ. 2020-10-17T12:11:40.12 0.6 undecidable manual S 285 46.5201 124 -0.38 46
IV.MSRU.HHZ. 2020-10-17T12:11:40.30 0.3 undecidable manual P 59 94.7385 54 0.68 57
IV.PETRA.HHZ. 2020-10-17T12:11:39.96 0.6 undecidable manual S 270 40.1265 128 0.85 39
IV.HMDC.HHZ. 2020-10-17T12:11:39.93 0.1 undecidable manual P 169 98.7234 54 -0.19 86
IV.ESML.HHZ. 2020-10-17T12:11:38.30 0.6 undecidable manual S 131 35.9418 132 0.04 50
IV.SSY.HHZ. 2020-10-17T12:11:38.51 0.1 positive manual P 149 86.9463 54 -0.14 89
IV.AGST.EHZ. 2020-10-17T12:11:38.06 0.1 positive manual P 138 86.0472 54 -0.49 83
IV.IACL.HHZ. 2020-10-17T12:11:37.51 0.1 undecidable manual P 346 79.9644 54 -0.28 88
IV.SCIAR.HHZ. 2020-10-17T12:11:37.44 0.1 positive manual P 280 73.0713 54 0.51 85
IV.MPNC.HHZ. 2020-10-17T12:11:37.45 0.3 undecidable manual P 63 76.5678 54 0.08 69
IV.IFIL.HHZ. 2020-10-17T12:11:37.67 0.1 negative manual P 0 81.1521 54 -0.26 88
IV.IVPL.HHZ. 2020-10-17T12:11:37.12 0.1 undecidable manual P 30 69.9744 113 0.62 81
IV.MUCR.HHZ. 2020-10-17T12:11:37.54 0.1 undecidable manual S 48 35.2425 132 -0.58 89
IV.HAGA.HHZ. 2020-10-17T12:11:37.22 0.1 positive manual P 140 79.4649 54 -0.51 83
IV.HCRL.HHZ. 2020-10-17T12:11:36.35 0.1 undecidable manual P 146 73.1712 54 -0.59 81
IV.RAFF.HHZ. 2020-10-17T12:11:36.72 0.1 negative manual P 195 70.1742 113 0.19 92
IV.AIO.HHZ. 2020-10-17T12:11:35.03 0.1 undecidable manual P 75 59.7957 117 -0.05 96
IV.EPOZ.HHZ. 2020-10-17T12:11:35.12 0.1 undecidable manual P 108 56.8986 118 0.44 89
IV.GIB.HHZ. 2020-10-17T12:11:34.00 0.1 undecidable manual P 290 50.9157 121 0.12 96
IV.GALF.HHZ. 2020-10-17T12:11:34.18 0.6 undecidable manual S 182 13.5753 158 -0.56 46
IV.HLNI.HHZ. 2020-10-17T12:11:34.46 0.3 undecidable manual P 154 59.7957 117 -0.62 62
IV.EVRN.HHZ. 2020-10-17T12:11:34.03 0.3 undecidable manual P 108 51.9036 121 0.02 74
IV.CPTP.HHZ. 2020-10-17T12:11:34.46 0.6 undecidable manual P 217 59.3961 117 -0.56 43
IV.MSFR.HHZ. 2020-10-17T12:11:34.86 0.6 undecidable manual S 4 22.3554 146 -1 38
MN.VAE.HHZ. 2020-10-17T12:11:33.86 0.3 undecidable manual P 206 44.7219 125 0.78 60
IV.CSLB.HHZ. 2020-10-17T12:11:33.04 0.1 undecidable manual P 285 46.5201 124 -0.27 94
IV.EMCN.HHZ. 2020-10-17T12:11:33.34 0.3 undecidable manual P 96 40.626 128 0.76 61
IV.ENIC.HNZ. 2020-10-17T12:11:33.62 0.1 undecidable manual P 119 45.3213 125 0.47 90
IV.ESML.HHZ. 2020-10-17T12:11:32.04 0.3 undecidable manual P 131 35.9418 132 0.02 76
IV.PLLN.EHZ. 2020-10-17T12:11:32.58 0.1 undecidable manual P 295 41.5251 127 -0.11 98
IV.EMSG.HHZ. 2020-10-17T12:11:32.16 0.1 positive manual P 92 33.0447 134 0.46 92
IV.PETRA.HHZ. 2020-10-17T12:11:32.52 0.1 undecidable manual P 270 40.1265 128 0.01 100
IV.EPZF.HHZ. 2020-10-17T12:11:31.24 0.1 positive manual P 92 24.9528 143 0.37 95
IV.MUCR.HHZ. 2020-10-17T12:11:31.66 0.1 positive manual P 48 35.2425 132 -0.28 96
IV.MSFR.HHZ. 2020-10-17T12:11:30.20 0.1 undecidable manual P 4 22.3554 146 -0.44 95
IV.GALF.HHZ. 2020-10-17T12:11:29.43 0.1 negative manual P 182 13.5753 158 -0.56 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HNE. ML:2.7 0.002005 0.62 AML other m 2020-10-17T12:11:34.96
IV.GALF.HHE. ML:3.7 0.01815 0.56 AML other m 2020-10-17T12:11:34.94
IV.GALF.HHN. ML:3.4 0.008895 0.6 AML other m 2020-10-17T12:11:36.36
IV.GALF.HNN. ML:2.5 0.00113 0.5 AML other m 2020-10-17T12:11:36.37
IV.EPZF.HHN. ML:3.0 0.003255 1.62 AML other m 2020-10-17T12:11:38.81
IV.EPZF.HHE. ML:3.0 0.0030099999999999997 0.48 AML other m 2020-10-17T12:11:39.16
IV.MUCR.HHE. ML:2.9 0.00197 0.38 AML other m 2020-10-17T12:11:40.52
IV.ESML.HHN. ML:3.0 0.0029649999999999998 1.34 AML other m 2020-10-17T12:11:40.86
IV.ESML.HHE. ML:3.1 0.0030250000000000003 0.7 AML other m 2020-10-17T12:11:41.37
IV.MUCR.HHN. ML:2.9 0.0023 0.58 AML other m 2020-10-17T12:11:41.49
IV.ENIC.HHN. ML:3.1 0.00264 0.78 AML other m 2020-10-17T12:11:42.06
IV.ENIC.HNN. ML:3.1 0.0025700000000000002 1.74 AML other m 2020-10-17T12:11:42.09
IV.EMCN.HHN. ML:3.0 0.00221 0.4 AML other m 2020-10-17T12:11:43.56
IV.EMCN.HNN. ML:3.0 0.0023499999999999997 0.42 AML other m 2020-10-17T12:11:43.57
IV.ENIC.HHE. ML:3.2 0.00325 1.18 AML other m 2020-10-17T12:11:44.69
IV.PETRA.HHN. ML:2.7 0.0013399999999999998 0.56 AML other m 2020-10-17T12:11:44.70
IV.PETRA.HHE. ML:2.8 0.00166 0.76 AML other m 2020-10-17T12:11:44.52
IV.HLNI.HHE. ML:3.0 0.00168 1.02 AML other m 2020-10-17T12:11:45.59
IV.HLNI.HHN. ML:3.1 0.002055 0.22 AML other m 2020-10-17T12:11:45.86
IV.GIB.HHN. ML:3.0 0.001955 0.52 AML other m 2020-10-17T12:11:45.81
IV.AIO.HHE. ML:2.9 0.001327 0.34 AML other m 2020-10-17T12:11:46.18
IV.AIO.HHN. ML:3.1 0.00232 1.58 AML other m 2020-10-17T12:11:46.99
IV.ENIC.HNE. ML:3.2 0.0032350000000000005 1.08 AML other m 2020-10-17T12:11:46.32
IV.EMSG.HHE. ML:3.1 0.0034500000000000004 1.42 AML other m 2020-10-17T12:11:46.15
IV.EVRN.HHN. ML:2.9 0.0014199999999999998 0.98 AML other m 2020-10-17T12:11:47.22
IV.HCRL.HHE. ML:3.3 0.00256 0.56 AML other m 2020-10-17T12:11:48.36
IV.RAFF.HHE. ML:3.0 0.001435 1.26 AML other m 2020-10-17T12:11:48.16
IV.HCRL.HHN. ML:3.1 0.001605 0.82 AML other m 2020-10-17T12:11:48.35
IV.RAFF.HHN. ML:2.9 0.00107 0.5 AML other m 2020-10-17T12:11:48.96
IV.EPOZ.HHN. ML:2.7 0.000975 1.28 AML other m 2020-10-17T12:11:49.88
IV.EMCN.HHE. ML:3.1 0.00293 0.9 AML other m 2020-10-17T12:11:49.07
IV.EMCN.HNE. ML:3.1 0.00293 0.9 AML other m 2020-10-17T12:11:49.07
IV.EMSG.HHN. ML:3.0 0.0030549999999999996 1.5 AML other m 2020-10-17T12:11:49.20
IV.IVPL.HHE. ML:3.1 0.00173 1.36 AML other m 2020-10-17T12:11:50.88
IV.IVPL.HHN. ML:3.0 0.00145 0.46 AML other m 2020-10-17T12:11:50.36
IV.GIB.HHE. ML:2.9 0.0016 1.5 AML other m 2020-10-17T12:11:50.08
IV.IACL.HHN. ML:2.7 0.0006585 1.38 AML other m 2020-10-17T12:11:50.91
IV.SCIAR.HNE. ML:2.8 0.0009930000000000002 0.62 AML other m 2020-10-17T12:11:51.30
IV.SCIAR.HHE. ML:2.8 0.0009699999999999999 0.66 AML other m 2020-10-17T12:11:51.31
IV.EPOZ.HHE. ML:2.8 0.0012250000000000002 0.44 AML other m 2020-10-17T12:11:51.15
IV.SCIAR.HHN. ML:2.7 0.0007195 0.58 AML other m 2020-10-17T12:11:51.74
IV.SCIAR.HNN. ML:2.8 0.0008999999999999999 0.64 AML other m 2020-10-17T12:11:51.75
IV.MPNC.HHE. ML:3.1 0.0016749999999999998 0.46 AML other m 2020-10-17T12:11:52.78
IV.MPNC.HHN. ML:2.9 0.0010935 1.52 AML other m 2020-10-17T12:11:53.87
IV.EVRN.HHE. ML:2.9 0.001565 1.14 AML other m 2020-10-17T12:11:53.63
IV.IACL.HHE. ML:2.7 0.0005925 0.98 AML other m 2020-10-17T12:11:54.38
IV.HMDC.HNN. ML:3.2 0.0013514999999999998 0.48 AML other m 2020-10-17T12:11:54.43
IV.HMDC.HHN. ML:3.2 0.0016349999999999997 0.5 AML other m 2020-10-17T12:11:54.42
IV.HMDC.HHE. ML:3.2 0.001395 0.2 AML other m 2020-10-17T12:11:55.41
IV.HMDC.HNE. ML:3.1 0.001206 0.22 AML other m 2020-10-17T12:11:55.41
IV.MSRU.HHN. ML:2.8 0.0006395 1 AML other m 2020-10-17T12:11:55.88
IV.MSRU.HHE. ML:2.9 0.0008665000000000001 1.4 AML other m 2020-10-17T12:11:57.06
IV.IFIL.HHE. ML:3.2 0.00198 1.3 AML other m 2020-10-17T12:11:57.87
IV.IFIL.HHN. ML:3.0 0.0011549999999999998 0.7 AML other m 2020-10-17T12:11:59.06
IV.HPAC.HHE. ML:3.3 0.001101 0.28 AML other m 2020-10-17T12:12:02.52
IV.SOI.EHE. ML:2.8 0.00037 0.74 AML other m 2020-10-17T12:12:03.58
IV.SOI.EHN. ML:2.7 0.00033150000000000003 1.06 AML other m 2020-10-17T12:12:03.97
IV.HPAC.HHN. ML:3.2 0.0009159999999999999 0.94 AML other m 2020-10-17T12:12:08.06
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