Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.9 on date 04-02-2020 and time 05:02:12 (UTC) in region 5 km SE Troina (EN)

A magnitude ML 2.9 earthquake occured in region: 5 km SE Troina (EN), on

  • 04-02-2020 05:02:12 (UTC)
  • 04-02-2020 06:02:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7480, 14.6310 at 27 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
Troina EN 5 9373 9373
Gagliano Castelferrato EN 9 3593 12966
Regalbuto EN 11 7277 20243
San Teodoro ME 13 1403 21646
Cesarò ME 13 2439 24085
Cerami EN 13 2006 26091
Agira EN 14 8345 34436
Centuripe EN 17 5470 39906
Capizzi ME 18 3176 43082
Bronte CT 18 19172 62254
Nissoria EN 19 3000 65254

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km NW of Catania (314555 inhabitants)
50 Km W of Acireale (52622 inhabitants)
58 Km NE of Caltanissetta (63360 inhabitants)
83 Km NE of Gela (75827 inhabitants)
89 Km N of Vittoria (63339 inhabitants)
92 Km N of Ragusa (73313 inhabitants)
95 Km SW of Messina (238439 inhabitants)
96 Km NW of Siracusa (122291 inhabitants)
98 Km W of Reggio di Calabria (183035 inhabitants)
99 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 2.9 2020-02-04
05:02:12		 37.7482 14.6307 27 2020-07-18
21:08:30		 Bollettino Sismico Italiano INGV 77849161
Reviewed
Rev100 		ML 2.9 2020-02-04
05:02:12		 37.7513 14.6107 26 2020-02-04
05:16:03		 Sala Sismica INGV-Roma 76185741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-04 05:02:12 ± 0.13
Latitude 37.7482 ± 0.0063
Longitude 14.6307 ± 0.0091
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77849161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 822
Semi-minor axis of confidence ellipse (meter) 263
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 114
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 52
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.94703
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 40
Magnitudes information

ML:2.9

Field Value
Value 2.9
Uncertainty 0.2
Num. used stations 43
Type of magnitude ML
Reference to an origin 77849161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-03 21:23:51

ML:2.9

Field Value
Value 2.9
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 76185741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-04 05:16:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2020-02-04T05:02:44.02 0.6 undecidable manual P 39 216.117 54 -0.23 27
IV.CROCE.HHZ. 2020-02-04T05:02:42.39 0.6 undecidable manual S 185 101.9202 100 0.16 43
IV.IST3.HHZ. 2020-02-04T05:02:38.94 3.0 undecidable manual Sn -2.83 0
IV.SSY.HHZ. 2020-02-04T05:02:36.15 0.6 undecidable manual S 149 76.2681 104 0.62 41
IV.JOPP.HNZ. 2020-02-04T05:02:35.22 0.6 undecidable manual P 49 145.0437 54 -0.18 40
IV.HAGA.HHZ. 2020-02-04T05:02:33.47 0.3 undecidable manual S 138 69.0753 106 -0.2 68
IV.SOI.EHZ. 2020-02-04T05:02:33.29 0.6 undecidable manual P 73 129.6702 54 -0.2 41
IV.CORL.HHZ. 2020-02-04T05:02:33.27 0.3 undecidable manual P 278 117.3936 99 1.38 37
IV.HVZN.HHE. 2020-02-04T05:02:32.71 0.6 undecidable manual S 173 63.6918 107 0.42 44
MN.CEL.HNZ. 2020-02-04T05:02:32.76 0.3 undecidable manual P 62 124.1868 54 -0.04 64
IV.GMB.BHZ. 2020-02-04T05:02:31.67 0.3 undecidable manual P 66 114.6963 99 0.19 63
IV.HPAC.HHZ. 2020-02-04T05:02:31.84 0.1 undecidable manual P 163 120.7902 54 -0.54 77
IV.AIO.HHZ. 2020-02-04T05:02:31.84 0.6 undecidable manual S 65 58.2972 109 0.91 38
IV.MTTG.HHZ. 2020-02-04T05:02:29.33 0.3 undecidable manual P 73 97.8243 101 0.42 62
IV.CLTA.HHZ. 2020-02-04T05:02:28.05 0.3 undecidable manual P 222 88.0452 102 0.62 59
IV.CROCE.HHZ. 2020-02-04T05:02:28.58 0.3 undecidable manual P 185 101.9202 100 -0.95 50
IV.MSRU.HHZ. 2020-02-04T05:02:28.77 0.3 undecidable manual P 53 95.7264 101 0.18 65
IV.IFIL.HHZ. 2020-02-04T05:02:28.38 0.3 undecidable manual P 357 90.6426 102 0.55 59
IV.HLNI.HHZ. 2020-02-04T05:02:28.01 0.6 undecidable manual S 154 49.1175 113 -0.64 41
IV.ALJA.HHZ. 2020-02-04T05:02:28.54 0.6 undecidable manual P 270 76.8675 104 2.78 5
IV.IACL.HHE. 2020-02-04T05:02:27.53 0.6 undecidable manual P 345 90.3429 102 -0.25 44
IV.CMDO.HHZ. 2020-02-04T05:02:27.96 0.6 undecidable manual P 246 77.6667 104 2.09 16
IV.ENIC.HHZ. 2020-02-04T05:02:27.04 0.6 undecidable manual S 111 36.741 121 1.36 32
IV.MUCR.HHZ. 2020-02-04T05:02:26.30 0.6 undecidable manual S 33 39.0276 119 0.08 50
IV.ACATE.HNE. 2020-02-04T05:02:26.37 1.0 undecidable manual P 188 81.1521 103 -0.03 23
IV.MILZ.HHN. 2020-02-04T05:02:25.92 0.6 undecidable manual P 42 78.2661 104 -0.05 47
IV.MPNC.HHZ. 2020-02-04T05:02:25.72 0.3 undecidable manual P 55 77.0673 104 -0.07 69
IV.IVPL.HNE. 2020-02-04T05:02:25.79 0.6 undecidable manual P 24 76.0683 104 0.15 45
IV.SSY.HHZ. 2020-02-04T05:02:24.99 0.3 undecidable manual P 149 76.2681 104 -0.67 59
IV.MSFR.HHZ. 2020-02-04T05:02:24.10 0.1 undecidable manual S 354 31.8459 125 -0.5 93
IV.AIO.HHZ. 2020-02-04T05:02:23.00 0.1 positive manual P 65 58.2972 109 -0.01 97
IV.HAGA.HHZ. 2020-02-04T05:02:23.71 0.1 undecidable manual P 138 69.0753 106 -0.88 73
IV.EPZF.HHZ. 2020-02-04T05:02:23.51 0.6 undecidable manual S 67 21.5673 137 0.99 39
IV.HVZN.HHE. 2020-02-04T05:02:23.35 0.3 undecidable manual P 173 63.6918 107 -0.44 66
IV.RESU.HHZ. 2020-02-04T05:02:23.08 1.0 undecidable manual P 258 51.6039 112 1.04 17
IV.RAFF.HHZ. 2020-02-04T05:02:23.76 0.3 undecidable manual P 202 62.8926 107 0.08 71
IV.CSLB.HHZ. 2020-02-04T05:02:22.14 0.1 undecidable manual P 293 54.4011 111 -0.3 93
IV.EPOZ.HHZ. 2020-02-04T05:02:22.07 0.3 undecidable manual P 100 49.7169 113 0.3 70
IV.PLLN.EHZ. 2020-02-04T05:02:22.63 3.0 undecidable manual P 0
IV.CAGR.HHZ. 2020-02-04T05:02:22.59 0.6 undecidable manual S 219 18.0708 143 0.67 44
IV.ENIC.HHZ. 2020-02-04T05:02:21.07 0.6 undecidable manual P 111 36.741 121 1.1 36
IV.PETRA.HHE. 2020-02-04T05:02:21.72 0.3 undecidable manual P 282 46.2204 114 0.45 67
IV.GALF.HHZ. 2020-02-04T05:02:20.21 0.6 undecidable manual S 234 6.993 164 -0.37 49
IV.EPIT.HHE. 2020-02-04T05:02:20.46 0.3 undecidable manual P 79 38.0286 120 0.31 71
IV.ESLN.HHZ. 2020-02-04T05:02:20.03 0.6 undecidable manual P 101 30.747 126 0.81 41
IV.HLNI.HHZ. 2020-02-04T05:02:20.91 0.1 undecidable manual P 154 49.1175 113 -0.78 79
IV.MUCR.HHZ. 2020-02-04T05:02:19.83 0.1 positive manual P 33 39.0276 119 -0.46 92
IV.CAGR.HHZ. 2020-02-04T05:02:18.04 0.1 undecidable manual P 219 18.0708 143 0.23 100
IV.EMSG.HHZ. 2020-02-04T05:02:18.88 0.1 positive manual P 74 29.1486 128 -0.13 99
IV.ECHR.HHE. 2020-02-04T05:02:18.87 0.1 negative manual P 105 25.752 132 0.26 98
IV.ESML.HHZ. 2020-02-04T05:02:18.87 0.6 undecidable manual P 123 26.1516 131 0.21 50
IV.MSFR.HHZ. 2020-02-04T05:02:18.89 0.1 positive manual P 354 31.8459 125 -0.46 93
IV.EPZF.HHZ. 2020-02-04T05:02:17.98 0.1 positive manual P 67 21.5673 137 -0.17 100
IV.GALF.HHZ. 2020-02-04T05:02:15.88 0.1 undecidable manual P 234 6.993 164 -1.15 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HNN. ML:2.4 0.0015157530000000001 0.5408 AML other m 2020-02-04T05:02:23.25
IV.GALF.HHN. ML:3.2 0.0093792305 0.56 AML other m 2020-02-04T05:02:23.25
IV.GALF.HNE. ML:2.3 0.0012366730000000002 0.4512 AML other m 2020-02-04T05:02:21.13
IV.GALF.HHE. ML:3.2 0.0102425935 0.48 AML other m 2020-02-04T05:02:25.09
IV.EPZF.HHN. ML:3.1 0.0057120545 0.5408 AML other m 2020-02-04T05:02:24.29
IV.EPZF.HHE. ML:3.0 0.0043147795 0.9184 AML other m 2020-02-04T05:02:25.39
IV.CAGR.HHE. ML:3.0 0.0050162955 0.7616 AML other m 2020-02-04T05:02:25.31
IV.CAGR.HHN. ML:3.2 0.0066958799999999995 0.9984 AML other m 2020-02-04T05:02:25.82
IV.ESML.HHN. ML:2.8 0.002492535 0.72 AML other m 2020-02-04T05:02:29.73
IV.ESML.HHE. ML:2.7 0.0018479604999999998 0.5632 AML other m 2020-02-04T05:02:28.90
IV.EMSG.HHN. ML:3.0 0.003463263 0.5184 AML other m 2020-02-04T05:02:33.76
IV.EMSG.HHE. ML:3.0 0.0035956095 0.4192 AML other m 2020-02-04T05:02:34.37
IV.MSFR.HHN. ML:2.2 0.0006084007000000001 0.64 AML other m 2020-02-04T05:02:25.62
IV.MSFR.HHE. ML:2.3 0.0007027707 0.8608 AML other m 2020-02-04T05:02:25.99
IV.MUCR.HHN. ML:2.8 0.002014382 0.5408 AML other m 2020-02-04T05:02:26.97
IV.MUCR.HHE. ML:2.8 0.001784597 0.3776 AML other m 2020-02-04T05:02:26.79
IV.ESLN.HHN. ML:2.9 0.0028537555 0.6016 AML other m 2020-02-04T05:02:36.83
IV.ESLN.HHE. ML:2.9 0.002610696 0.6208 AML other m 2020-02-04T05:02:32.30
IV.HLNI.HHN. ML:2.7 0.001136635 0.2592 AML other m 2020-02-04T05:02:30.19
IV.ENIC.HHN. ML:3.0 0.0030040075 0.5024 AML other m 2020-02-04T05:02:30.38
IV.ENIC.HNN. ML:3.1 0.0035585244999999997 0.5504 AML other m 2020-02-04T05:02:30.40
IV.ENIC.HHE. ML:3.0 0.0033798515 0.56 AML other m 2020-02-04T05:02:32.52
IV.ENIC.HNE. ML:3.0 0.0028692204999999998 1.12 AML other m 2020-02-04T05:02:31.87
IV.PLLN.EHE. ML:2.8 0.001512142 0.7808 AML other m 2020-02-04T05:02:35.52
IV.PLLN.EHN. ML:2.9 0.0016152769999999998 0.64 AML other m 2020-02-04T05:02:35.52
IV.AIO.HHE. ML:2.6 0.00083880915 0.5824 AML other m 2020-02-04T05:02:32.48
IV.AIO.HHN. ML:2.6 0.0008305300999999999 0.3616 AML other m 2020-02-04T05:02:33.28
IV.RESU.HHE. ML:2.5 0.00066819695 0.64 AML other m 2020-02-04T05:02:41.25
IV.RESU.HHN. ML:2.6 0.0008419752000000001 0.6208 AML other m 2020-02-04T05:02:40.85
IV.HAGA.HHE. ML:3.0 0.0015611229999999998 0.4608 AML other m 2020-02-04T05:02:37.46
IV.HAGA.HHN. ML:3.1 0.001980117 0.3616 AML other m 2020-02-04T05:02:33.56
IV.RAFF.HHN. ML:2.9 0.0013696229500000001 0.32 AML other m 2020-02-04T05:02:36.91
IV.RAFF.HHE. ML:2.9 0.0013787805 0.48 AML other m 2020-02-04T05:02:36.91
IV.MPNC.HHN. ML:2.9 0.0011900650000000001 0.5024 AML other m 2020-02-04T05:02:40.64
IV.MPNC.HHE. ML:3.0 0.0014421710000000001 0.7808 AML other m 2020-02-04T05:02:42.77
IV.IFIL.HHN. ML:3.0 0.0011808117 0.4576 AML other m 2020-02-04T05:02:46.57
IV.IFIL.HHE. ML:3.4 0.0029435159999999998 0.6816 AML other m 2020-02-04T05:02:42.19
IV.CROCE.HHE. ML:2.8 0.0006769464499999999 0.3008 AML other m 2020-02-04T05:02:44.33
IV.CROCE.HHN. ML:2.9 0.0008064253 0.24 AML other m 2020-02-04T05:02:44.41
IV.CROCE.HNE. ML:2.9 0.0008168956000000001 0.3104 AML other m 2020-02-04T05:02:44.33
IV.CROCE.HNN. ML:3.0 0.0010138864999999998 0.24 AML other m 2020-02-04T05:02:44.42
IV.HPAC.HHE. ML:3.3 0.0015952959999999997 0.3392 AML other m 2020-02-04T05:02:51.13
IV.HPAC.HHN. ML:3.3 0.0014391825 0.5792 AML other m 2020-02-04T05:02:51.59
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