Earthquake with magnitude of ML 1.3 on date 17-02-2020 and time 23:43:33 (Italy) in region 4 km W Polizzi Generosa (PA)

A magnitude ML 1.3 earthquake occured in region: 4 km W Polizzi Generosa (PA), on

  • 17-02-2020 22:43:33 (UTC)
  • 17-02-2020 23:43:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.83, 13.95 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Polizzi Generosa PA 4 3407 3407
Scillato PA 5 613 4020
Caltavuturo PA 6 4017 8037
Sclafani Bagni PA 9 426 8463
Castellana Sicula PA 10 3411 11874
Collesano PA 10 4054 15928
Petralia Sottana PA 12 2821 18749
Isnello PA 14 1589 20338
Blufi PA 14 1029 21367
Petralia Soprana PA 14 3360 24727
Valledolmo PA 14 3594 28321
Cerda PA 15 5330 33651
Gratteri PA 16 963 34614
Aliminusa PA 16 1236 35850
Bompietro PA 16 1401 37251
Castelbuono PA 17 8943 46194
Montemaggiore Belsito PA 17 3365 49559
Resuttano CL 18 2038 51597
Geraci Siculo PA 18 1945 53542
Campofelice di Roccella PA 19 7537 61079
Lascari PA 19 3588 64667
Sciara PA 19 2822 67489
Vallelunga Pratameno CL 20 3461 70950

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km N of Caltanissetta (63360 inhabitants)
48 Km SE of Bagheria (55387 inhabitants)
61 Km SE of Palermo (674435 inhabitants)
66 Km NE of Agrigento (59770 inhabitants)
89 Km N of Gela (75827 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 1.3 2020-02-17
22:43:33
37.83 13.95 8 2020-07-18
21:08:41
Bollettino Sismico Italiano INGV 80290761
Reviewed
Rev100
ML 1.3 2020-02-17
22:43:33
37.84 13.95 9 2020-02-17
22:50:22
Sala Sismica INGV-Roma 76610841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-17 22:43:33 ± 0.19
Latitude 37.83 ± 0.01
Longitude 13.95 ± 0.01
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80290761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1077
Semi-minor axis of confidence ellipse (meter) 969
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 331
Circular confidence region, given by single value of horizontal uncertainty (meter) 1080
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.1268
Epicentral distance of station farthest from the epicenter (degree) 0.51711
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 80290761
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-18 16:46:22

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 76610841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-17 22:50:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CORL.HHZ. 2020-02-17T22:43:44.35 0.3 undecidable manual P 277 0.5171 50 0.25 69
IV.PLLN.EHZ. 2020-02-17T22:43:42.69 0.3 undecidable manual S 42 0.2203 108 0.34 72
IV.SOLUN.HHE. 2020-02-17T22:43:42.77 0.3 undecidable manual P 308 0.4236 50 0.29 70
IV.RESU.HHZ. 2020-02-17T22:43:42.64 0.6 undecidable manual S 156 0.1996 110 1.04 37
IV.ALJA.HHZ. 2020-02-17T22:43:41.09 0.3 undecidable manual S 243 0.1781 112 0.29 74
IV.CSLB.HHZ. 2020-02-17T22:43:40.01 0.3 undecidable manual S 37 0.1349 118 0.71 65
IV.PETRA.HHZ. 2020-02-17T22:43:39.12 0.6 undecidable manual S 88 0.1268 119 0.1 52
IV.PLLN.EHZ. 2020-02-17T22:43:38.02 0.1 undecidable manual P 42 0.2203 108 -0.55 91
IV.RESU.HHZ. 2020-02-17T22:43:37.95 0.1 undecidable manual P 156 0.1996 110 -0.19 100
IV.ALJA.HHZ. 2020-02-17T22:43:37.25 0.1 undecidable manual P 243 0.1781 112 -0.44 95
IV.PETRA.HHZ. 2020-02-17T22:43:36.37 0.1 positive manual P 88 0.1268 119 -0.29 99
IV.CSLB.HHZ. 2020-02-17T22:43:36.49 0.1 undecidable manual P 37 0.1349 118 -0.32 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHN. ML:1 0.0001095 0.44 AML other m 2020-02-17T22:43:40.54
IV.CSLB.HHE. ML:1 0.0001009 0.82 AML other m 2020-02-17T22:43:41.02
IV.PETRA.HHE. ML:1.6 0.000385 0.56 AML other m 2020-02-17T22:43:42.65
IV.RESU.HHE. ML:1.3 0.000128 0.56 AML other m 2020-02-17T22:43:44.35
IV.PETRA.HHN. ML:1.5 0.0003345 0.48 AML other m 2020-02-17T22:43:45.52
IV.PLLN.EHE. ML:1.3 0.0001295 0.9 AML other m 2020-02-17T22:43:45.80
IV.RESU.HHN. ML:1.3 0.000141 1.66 AML other m 2020-02-17T22:43:46.83
IV.PLLN.EHN. ML:1.4 0.0001395 0.46 AML other m 2020-02-17T22:43:48.72
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download