Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 14-10-2020 and time 12:43:19 (UTC) in region 6 km W Pietraperzia (EN)

A magnitude ML 2.1 earthquake occured in region: 6 km W Pietraperzia (EN), on

  • 14-10-2020 12:43:19 (UTC)
  • 14-10-2020 14:43:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.4110, 14.0690 at 31 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
Pietraperzia EN 6 7013 7013
Caltanissetta CL 9 63360 70373
Sommatino CL 11 7038 77411
San Cataldo CL 11 23253 100664
Barrafranca EN 13 13380 114044
Delia CL 14 4277 118321
Riesi CL 14 11586 129907
Serradifalco CL 17 6091 135998
Mazzarino CL 17 12145 148143
Ravanusa AG 18 11766 159909

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km S of Caltanissetta (63360 inhabitants)
42 Km NW of Gela (75827 inhabitants)
44 Km E of Agrigento (59770 inhabitants)
66 Km NW of Vittoria (63339 inhabitants)
80 Km NW of Ragusa (73313 inhabitants)
87 Km NW of Modica (54633 inhabitants)
89 Km SE of Bagheria (55387 inhabitants)
91 Km W of Catania (314555 inhabitants)
99 Km W of Acireale (52622 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 2020-10-14
12:43:19		 37.4108 14.0693 31 2021-02-26
14:56:18		 Bollettino Sismico Italiano INGV 86891131
Reviewed
Rev100 		ML 2.1 2020-10-14
12:43:19		 37.4148 14.0798 31 2020-10-14
12:56:48		 Sala Sismica INGV-Roma 83776441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-14 12:43:19 ± 0.29
Latitude 37.4108 ± 0.0171
Longitude 14.0693 ± 0.0181
Depth (km) 31 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86891131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2239
Semi-minor axis of confidence ellipse (meter) 607
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
Circular confidence region, given by single value of horizontal uncertainty (meter) 2240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 229
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.95148
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 86891131
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-15 11:44:57

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 83776441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-14 12:56:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LRP.EHZ. 2020-10-14T12:45:19.30 3.0 undecidable manual Sn 1.65 0
IV.PTRJ.HHZ. 2020-10-14T12:45:08.77 3.0 undecidable manual Sn -1.34 0
IV.PE3.EHZ. 2020-10-14T12:44:53.71 3.0 undecidable manual Pn -2.8 0
IV.GAVE.EHZ. 2020-10-14T12:44:47.44 3.0 negative manual Pn 5.23 0
IV.HAVL.HHZ. 2020-10-14T12:43:51.45 0.6 undecidable manual S 118 105.6165 54 1.01 33
IV.AGST.EHE. 2020-10-14T12:43:50.23 0.6 undecidable manual S 99 103.5186 54 0.24 43
IV.SSY.HHZ. 2020-10-14T12:43:47.96 0.1 undecidable manual S 107 92.9403 104 0.69 76
IV.HMDC.HHE. 2020-10-14T12:43:45.01 0.6 undecidable manual S 128 80.5638 106 0.94 35
IV.HCRL.HHE. 2020-10-14T12:43:45.52 0.6 undecidable manual S 99 86.1471 105 0.02 46
IV.HLNI.HHZ. 2020-10-14T12:43:41.07 0.3 undecidable manual S 95 71.0733 109 -0.59 62
IV.HAVL.HHZ. 2020-10-14T12:43:37.23 0.3 undecidable manual P 118 105.6165 54 -0.07 65
IV.AGST.EHE. 2020-10-14T12:43:36.32 1.0 undecidable manual P 99 103.5186 54 -0.71 18
IV.SSY.HHZ. 2020-10-14T12:43:35.10 0.6 positive manual P 107 92.9403 104 -0.37 42
IV.HAGA.HHE. 2020-10-14T12:43:35.70 1.0 undecidable manual P 98 96.7254 103 -0.34 21
IV.HMDC.HHE. 2020-10-14T12:43:33.56 0.3 undecidable manual P 128 80.5638 106 -0.06 68
IV.HCRL.HHE. 2020-10-14T12:43:33.87 1.0 undecidable manual P 99 86.1471 105 -0.57 20
IV.RAFF.HHZ. 2020-10-14T12:43:32.68 0.6 undecidable manual S 129 33.2445 129 0 51
IV.CSLB.HHZ. 2020-10-14T12:43:31.08 0.3 undecidable manual P 359 58.3971 113 0.68 65
IV.HLNI.HHZ. 2020-10-14T12:43:31.59 0.1 positive manual P 95 71.0733 109 -0.64 80
IV.HVZN.HHE. 2020-10-14T12:43:31.20 1.0 undecidable manual P 114 62.5929 111 0.2 23
IV.CPTP.HHZ. 2020-10-14T12:43:29.51 0.6 undecidable manual S 93 8.1807 164 0.68 46
IV.RESU.HHZ. 2020-10-14T12:43:26.53 0.6 undecidable manual P 358 26.1516 136 0.29 50
MN.VAE.HHZ. 2020-10-14T12:43:26.11 0.1 negative manual P 75 25.8519 137 -0.09 100
IV.RAFF.HHZ. 2020-10-14T12:43:26.69 0.1 negative manual P 129 33.2445 129 -0.35 94
IV.CPTP.HHZ. 2020-10-14T12:43:24.45 0.3 undecidable manual P 93 8.1807 164 -0.37 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.VAE.HHN. ML:1.6 0.00014580574999999998 0.1728 AML other m 2020-10-14T12:43:29.37
IV.CPTP.HHN. ML:2.3 0.0009890727 0.4352 AML other m 2020-10-14T12:43:31.87
IV.RAFF.HHN. ML:1.8 0.00021116681 0.1792 AML other m 2020-10-14T12:43:32.93
IV.RAFF.HHE. ML:2.0 0.0002802879 0.2624 AML other m 2020-10-14T12:43:33.05
MN.VAE.HHE. ML:1.5 0.00010318372500000001 0.2752 AML other m 2020-10-14T12:43:34.56
IV.CPTP.HHE. ML:2.2 0.0008310801000000001 0.4608 AML other m 2020-10-14T12:43:34.89
IV.RESU.HHN. ML:1.7 0.00016167145 1.1552 AML other m 2020-10-14T12:43:36.24
IV.RESU.HHE. ML:1.7 0.00018877654999999998 1.6416 AML other m 2020-10-14T12:43:37.01
IV.SSY.HHN. ML:2.9 0.0008511485999999999 0.2624 AML other m 2020-10-14T12:43:50.05
IV.SSY.HHE. ML:2.6 0.0003791897 0.16 AML other m 2020-10-14T12:43:51.08
IV.HAVL.HHE. ML:2.3 0.00016948015 0.1408 AML other m 2020-10-14T12:43:53.78
IV.HAVL.HHN. ML:2.4 0.00018918259999999997 1.7952 AML other m 2020-10-14T12:43:57.04
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