Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 01-10-2016 and time 11:54:02 (Italy) in region 3 km NE Leonforte (EN)

A magnitude ML 2.1 earthquake occured in region: 3 km NE Leonforte (EN), on

  • 01-10-2016 09:54:02 (UTC)
  • 01-10-2016 11:54:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6620, 14.4060 at 47 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
Leonforte EN 3 13439 13439
Nissoria EN 4 3000 16439
Assoro EN 4 5191 21630
Nicosia EN 10 13899 35529
Agira EN 10 8345 43874
Sperlinga EN 13 805 44679
Gagliano Castelferrato EN 13 3593 48272
Calascibetta EN 14 4528 52800
Enna EN 15 28019 80819
Valguarnera Caropepe EN 18 7866 88685
Cerami EN 19 2006 90691

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NE of Caltanissetta (63360 inhabitants)
63 Km W of Catania (314555 inhabitants)
67 Km W of Acireale (52622 inhabitants)
68 Km N of Gela (75827 inhabitants)
80 Km N of Vittoria (63339 inhabitants)
82 Km NE of Agrigento (59770 inhabitants)
87 Km NW of Ragusa (73313 inhabitants)
91 Km SE of Bagheria (55387 inhabitants)
95 Km NW of Modica (54633 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 2.1 2016-10-01
09:54:02		 37.6617 14.4065 47 2017-03-16
11:39:24		 Bollettino Sismico Italiano INGV 42491161
Reviewed
Rev100 		ML 2.0 2016-10-01
09:54:03		 37.6357 14.3827 45 2016-10-01
10:09:40		 Sala Sismica INGV-Roma 29743021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-01 09:54:02 ± 0.2
Latitude 37.6617 ± 0.0099
Longitude 14.4065 ± 0.0136
Depth (km) 47 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 42491161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1288
Semi-minor axis of confidence ellipse (meter) 698
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 1290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.08364
Epicentral distance of station farthest from the epicenter (degree) 0.90292
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 29743021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-01 10:09:40

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 42491161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-03-16 11:51:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2016-10-01T09:54:33.10 0.3 undecidable manual S 141 100.2219 99 1.11 47
IV.SSY.HHZ. 2016-10-01T09:54:29.00 0.3 undecidable manual S 133 81.1521 103 1.05 50
IV.HMDC.HHZ. 2016-10-01T09:54:28.90 1.0 undecidable manual S 157 84.7485 102 0.19 22
IV.HAGA.HHZ. 2016-10-01T09:54:27.70 1.0 undecidable manual S 122 78.0663 104 0.4 22
IV.CLTA.HHZ. 2016-10-01T09:54:25.60 1.0 undecidable manual S 215 68.1762 108 0.33 22
IV.HVZN.HHE. 2016-10-01T09:54:23.10 1.0 undecidable manual S 153 60.0954 112 -0.53 22
IV.RAFF.HHZ. 2016-10-01T09:54:21.70 0.3 undecidable manual S 185 48.9177 120 0.24 70
IV.GIB.HHZ. 2016-10-01T09:54:21.60 0.6 undecidable manual S 318 49.4172 120 0.05 49
IV.HLNI.HHE. 2016-10-01T09:54:21.70 1.0 undecidable manual S 130 53.7018 117 -0.68 21
IV.PLLN.EHZ. 2016-10-01T09:54:21.10 1.0 undecidable manual S 328 43.3233 125 0.65 21
IV.HAVL.HHZ. 2016-10-01T09:54:19.84 0.1 positive manual P 141 100.2219 99 0.1 88
IV.PETRA.HHE. 2016-10-01T09:54:18.60 0.3 undecidable manual S 307 31.9458 136 0.02 76
IV.HMDC.HHZ. 2016-10-01T09:54:17.55 0.6 undecidable manual P 157 84.7485 102 -0.29 44
IV.SSY.HHZ. 2016-10-01T09:54:17.47 0.1 positive manual P 133 81.1521 103 0.07 92
IV.HAGA.HHZ. 2016-10-01T09:54:16.87 0.1 positive manual P 122 78.0663 104 -0.16 91
IV.CLTA.HHZ. 2016-10-01T09:54:16.10 0.3 undecidable manual P 215 68.1762 108 0.25 68
IV.GALF.HHZ. 2016-10-01T09:54:16.60 0.3 undecidable manual S 69 15.0738 158 0.01 79
IV.HVZN.HHE. 2016-10-01T09:54:14.42 0.1 positive manual P 153 60.0954 112 -0.49 88
IV.GIB.HHZ. 2016-10-01T09:54:13.66 0.1 positive manual P 318 49.4172 120 -0.05 98
IV.RAFF.HHZ. 2016-10-01T09:54:13.17 0.1 positive manual P 185 48.9177 120 -0.48 90
IV.MSFR.HHN. 2016-10-01T09:54:13.50 0.3 undecidable manual P 21 44.3223 124 0.32 70
IV.HLNI.HHE. 2016-10-01T09:54:13.49 0.1 positive manual P 130 53.7018 117 -0.69 82
IV.PLLN.EHZ. 2016-10-01T09:54:12.88 0.6 undecidable manual P 328 43.3233 125 -0.19 48
IV.PETRA.HHE. 2016-10-01T09:54:12.64 0.3 undecidable manual P 307 31.9458 136 0.65 65
IV.GALF.HHZ. 2016-10-01T09:54:10.59 0.1 undecidable manual P 69 15.0738 158 -0.25 100
IV.CAGR.HHZ. 2016-10-01T09:54:10.35 0.3 undecidable manual P 118 9.2796 166 -0.27 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHN. ML:1.4 0.000076 1.58 AML other m 2016-10-01T09:54:19.82
IV.GALF.HHE. ML:1.6 0.00011205000000000001 0.28 AML other m 2016-10-01T09:54:21.27
IV.HAGA.HHE. ML:2.2 0.000169 0.92 AML other m 2016-10-01T09:54:29.46
IV.HAGA.HHN. ML:2.0 0.000121 1.08 AML other m 2016-10-01T09:54:29.63
IV.HAVL.HHN. ML:2.8 0.000475 0.32 AML other m 2016-10-01T09:54:33.89
IV.HAVL.HHE. ML:2.5 0.00024349999999999998 0.3 AML other m 2016-10-01T09:54:33.74
IV.HLNI.HHN. ML:1.8 0.00011599999999999999 0.28 AML other m 2016-10-01T09:54:23.76
IV.HLNI.HHE. ML:1.8 0.0001002 0.94 AML other m 2016-10-01T09:54:25.21
IV.HMDC.HHE. ML:2.2 0.00017449999999999999 1.62 AML other m 2016-10-01T09:54:30.98
IV.HMDC.HHN. ML:2.2 0.000175 0.34 AML other m 2016-10-01T09:54:30.25
IV.RAFF.HHN. ML:1.7 0.0000919 0.72 AML other m 2016-10-01T09:54:24.86
IV.RAFF.HHE. ML:2.0 0.0001835 1.38 AML other m 2016-10-01T09:54:22.16
IV.SSY.HHE. ML:2.3 0.00020950000000000002 0.9 AML other m 2016-10-01T09:54:30.54
IV.SSY.HHN. ML:2.6 0.0004685 0.2 AML other m 2016-10-01T09:54:31.00
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