Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 12-01-2021 and time 19:35:01 (Italy) in region 5 km N Sperlinga (EN)

A magnitude ML 2.4 earthquake occured in region: 5 km N Sperlinga (EN), on

  • 12-01-2021 18:35:01 (UTC)
  • 12-01-2021 19:35:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8120, 14.3400 at 8 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
Sperlinga EN 5 805 805
Nicosia EN 9 13899 14704
Castel di Lucio ME 9 1294 15998
Gangi PA 12 6811 22809
Capizzi ME 13 3176 25985
Mistretta ME 13 4791 30776
Cerami EN 15 2006 32782
Geraci Siculo PA 17 1945 34727
San Mauro Castelverde PA 17 1701 36428
Pettineo ME 18 1350 37778
Reitano ME 18 806 38584
Motta d'Affermo ME 19 739 39323
Leonforte EN 20 13439 52762
Nissoria EN 20 3000 55762

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NE of Caltanissetta (63360 inhabitants)
74 Km W of Catania (314555 inhabitants)
76 Km W of Acireale (52622 inhabitants)
79 Km E of Bagheria (55387 inhabitants)
83 Km N of Gela (75827 inhabitants)
87 Km NE of Agrigento (59770 inhabitants)
92 Km E of Palermo (674435 inhabitants)
98 Km N of Vittoria (63339 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 2.4 2021-01-12
18:35:01		 37.8123 14.3398 8 2021-07-12
16:55:09		 Bollettino Sismico Italiano INGV 89721301
Reviewed
Rev100 		ML 2.4 2021-01-12
18:35:01		 37.8302 14.3522 6 2021-01-12
18:53:36		 Sala Sismica INGV-Roma 86208751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-12 18:35:01 ± 0.08
Latitude 37.8123 ± 0.0063
Longitude 14.3398 ± 0.0057
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89721301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 551
Semi-minor axis of confidence ellipse (meter) 498
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 9
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
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) 0.17897
Epicentral distance of station farthest from the epicenter (degree) 1.05490
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 86208751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-12 18:53:36

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 89721301
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-02 17:47:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2021-01-12T18:35:20.32 0.6 undecidable manual P 144 117.0939 50 -0.54 37
IV.MUCR.HHZ. 2021-01-12T18:35:18.60 0.3 undecidable manual S 61 53.3022 50 0.27 69
IV.ILOS.HHZ. 2021-01-12T18:35:17.01 1.0 undecidable manual P 37 88.0452 50 0.61 20
IV.MPNC.HHZ. 2021-01-12T18:35:17.20 0.6 undecidable manual P 67 96.0261 50 -0.42 41
IV.MPG.HHZ. 2021-01-12T18:35:17.87 0.6 undecidable manual P 295 94.0392 50 0.55 40
IV.SSY.HNZ. 2021-01-12T18:35:17.78 0.6 undecidable manual P 138 97.2249 50 -0.02 44
IV.EPZF.HHZ. 2021-01-12T18:35:16.00 1.0 undecidable manual S 88 45.3213 50 -0.21 23
IV.CORL.HHZ. 2021-01-12T18:35:16.89 0.6 undecidable manual P 276 91.242 50 0.01 45
IV.IVGP.HHZ. 2021-01-12T18:35:16.00 0.6 undecidable manual P 40 84.5487 50 0.15 44
IV.IFIL.HHZ. 2021-01-12T18:35:16.32 0.1 undecidable manual P 14 85.8474 50 0.26 86
IV.IACL.HHZ. 2021-01-12T18:35:15.62 0.1 undecidable manual P 1 79.9644 50 0.47 83
IV.HVZN.HNZ. 2021-01-12T18:35:15.07 0.6 undecidable manual P 155 77.7666 50 0.27 44
IV.HCRL.HHZ. 2021-01-12T18:35:15.52 0.6 undecidable manual P 134 84.6486 50 -0.34 42
IV.CMDO.HHZ. 2021-01-12T18:35:14.44 0.6 undecidable manual P 230 59.5959 50 2.42 12
IV.SOLUN.HHZ. 2021-01-12T18:35:14.52 0.6 undecidable manual P 294 77.1672 50 -0.19 44
IV.AIO.HHZ. 2021-01-12T18:35:14.84 0.6 undecidable manual P 77 80.1642 50 -0.33 43
IV.HLNI.HHZ. 2021-01-12T18:35:13.43 0.6 undecidable manual P 138 69.5748 50 -0.11 46
IV.NOV.HHZ. 2021-01-12T18:35:13.44 0.6 undecidable manual P 71 73.6707 50 -0.75 38
IV.MSFR.HHZ. 2021-01-12T18:35:13.10 0.6 undecidable manual S 42 33.0447 104 0.22 47
IV.GIB.HHZ. 2021-01-12T18:35:13.55 0.3 undecidable manual S 306 33.8439 50 0.41 69
IV.ECTS.HHZ. 2021-01-12T18:35:13.71 0.3 undecidable manual P 83 68.8755 50 0.28 67
IV.RESU.HHZ. 2021-01-12T18:35:12.22 1.0 undecidable manual S 234 30.8469 105 0.05 25
IV.RAFF.HHZ. 2021-01-12T18:35:12.47 0.6 undecidable manual P 178 65.49 50 -0.44 43
IV.PLLN.EHZ. 2021-01-12T18:35:11.40 0.6 undecidable manual S 319 26.3514 108 0.73 41
IV.CPTP.HHZ. 2021-01-12T18:35:11.23 1.0 undecidable manual P 199 47.5191 50 1.08 17
IV.CSLB.HHZ. 2021-01-12T18:35:11.20 0.6 undecidable manual S 299 28.3494 107 -0.11 50
IV.CAGR.HHZ. 2021-01-12T18:35:11.00 0.3 undecidable manual S 146 25.3524 108 0.67 64
IV.SCIAR.HHZ. 2021-01-12T18:35:10.89 0.1 undecidable manual P 286 53.6019 50 -0.2 92
IV.GALF.HHZ. 2021-01-12T18:35:10.38 0.3 undecidable manual S 120 22.8549 110 0.87 58
IV.MUCR.HHZ. 2021-01-12T18:35:10.37 0.1 undecidable manual P 61 53.3022 50 -0.67 81
IV.EPZF.HHZ. 2021-01-12T18:35:10.48 0.3 undecidable manual P 88 45.3213 50 0.67 62
IV.PETRA.HHZ. 2021-01-12T18:35:08.70 0.3 undecidable manual S 277 19.869 113 0.16 74
IV.MSFR.HHZ. 2021-01-12T18:35:07.38 0.6 undecidable manual P 42 33.0447 104 -0.5 45
IV.GIB.HHZ. 2021-01-12T18:35:07.75 0.6 undecidable manual P 306 33.8439 50 -0.28 47
IV.RESU.HHZ. 2021-01-12T18:35:07.51 0.1 undecidable manual P 234 30.8469 105 0.03 100
IV.CSLB.HHZ. 2021-01-12T18:35:06.22 0.1 undecidable manual P 299 28.3494 107 -0.76 82
IV.CAGR.HHZ. 2021-01-12T18:35:06.18 0.1 undecidable manual P 146 25.3524 108 -0.24 97
IV.PLLN.EHZ. 2021-01-12T18:35:06.55 0.3 undecidable manual P 319 26.3514 108 -0.06 75
IV.GALF.HHZ. 2021-01-12T18:35:05.21 0.1 negative manual P 120 22.8549 110 -0.73 84
IV.PETRA.HHZ. 2021-01-12T18:35:05.25 0.1 undecidable manual P 277 19.869 113 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHN. ML:3.0 0.00713 1.52 AML other m 2021-01-12T18:35:12.12
IV.GALF.HNN. ML:2.1 0.0008725 1.54 AML other m 2021-01-12T18:35:12.12
IV.PETRA.HHN. ML:2.3 0.0015699999999999998 0.34 AML other m 2021-01-12T18:35:13.63
IV.GALF.HHE. ML:2.8 0.00445 0.66 AML other m 2021-01-12T18:35:13.65
IV.GALF.HNE. ML:1.9 0.00048550000000000004 0.64 AML other m 2021-01-12T18:35:14.15
IV.CAGR.HHN. ML:2.7 0.00312 1.42 AML other m 2021-01-12T18:35:15.72
IV.MSFR.HHN. ML:1.8 0.00027 0.46 AML other m 2021-01-12T18:35:15.25
IV.PETRA.HHE. ML:2.2 0.0013900000000000002 0.56 AML other m 2021-01-12T18:35:15.47
IV.MSFR.HHE. ML:1.7 0.00020649999999999998 1.2 AML other m 2021-01-12T18:35:15.75
IV.CAGR.HHE. ML:2.7 0.003285 0.42 AML other m 2021-01-12T18:35:16.14
IV.CSLB.HHE. ML:1.8 0.000307 0.52 AML other m 2021-01-12T18:35:16.67
IV.CSLB.HHN. ML:1.8 0.000303 1.04 AML other m 2021-01-12T18:35:17.10
IV.PLLN.EHE. ML:2.4 0.0013599999999999999 0.8 AML other m 2021-01-12T18:35:17.72
IV.PLLN.EHN. ML:2.4 0.001335 0.44 AML other m 2021-01-12T18:35:17.53
IV.RESU.HHE. ML:2.4 0.00135 0.52 AML other m 2021-01-12T18:35:18.59
IV.GIB.HHE. ML:2.4 0.0010155 0.46 AML other m 2021-01-12T18:35:19.60
IV.MUCR.HHN. ML:2.2 0.00034250000000000003 0.4 AML other m 2021-01-12T18:35:20.55
IV.RESU.HHN. ML:2.5 0.00145 1.56 AML other m 2021-01-12T18:35:20.88
IV.GIB.HHN. ML:2.4 0.001011 0.42 AML other m 2021-01-12T18:35:21.11
IV.MUCR.HHE. ML:2.3 0.000447 0.32 AML other m 2021-01-12T18:35:21.35
IV.EPZF.HHN. ML:2.5 0.0008580000000000001 0.74 AML other m 2021-01-12T18:35:25.43
IV.SCIAR.HHE. ML:2.3 0.0004865 0.4 AML other m 2021-01-12T18:35:25.68
IV.SCIAR.HNE. ML:2.2 0.00041200000000000004 0.4 AML other m 2021-01-12T18:35:25.69
IV.SCIAR.HHN. ML:2.2 0.00040149999999999995 1.28 AML other m 2021-01-12T18:35:26.70
IV.SCIAR.HNN. ML:2.3 0.0005075 1.26 AML other m 2021-01-12T18:35:26.69
IV.EPZF.HHE. ML:2.5 0.0008629999999999999 0.84 AML other m 2021-01-12T18:35:28.78
IV.CPTP.HHN. ML:2.2 0.00043149999999999997 0.42 AML other m 2021-01-12T18:35:28.99
IV.CPTP.HHE. ML:2.2 0.00043200000000000004 1.1 AML other m 2021-01-12T18:35:31.28
IV.NOV.HHN. ML:2.6 0.000611 1.14 AML other m 2021-01-12T18:35:31.34
IV.IACL.HHN. ML:2.6 0.000514 1.3 AML other m 2021-01-12T18:35:33.66
IV.IACL.HHE. ML:2.5 0.000456 0.74 AML other m 2021-01-12T18:35:35.48
IV.NOV.HHE. ML:2.7 0.0008385 0.52 AML other m 2021-01-12T18:35:36.35
IV.IFIL.HHN. ML:2.6 0.000561 0.56 AML other m 2021-01-12T18:35:36.64
IV.IFIL.HHE. ML:2.9 0.0010635000000000002 1.08 AML other m 2021-01-12T18:35:37.56
IV.HAVL.HHE. ML:2.5 0.000244 1 AML other m 2021-01-12T18:35:38.78
IV.HAVL.HHN. ML:2.6 0.000343 1.7 AML other m 2021-01-12T18:35:39.07
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
Waveforms Seismic signals in miniseed + resp format Download