Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 16-11-2020 and time 21:13:52 (Italy) in region 2 km NW Geraci Siculo (PA)

A magnitude ML 1.3 earthquake occured in region: 2 km NW Geraci Siculo (PA), on

  • 16-11-2020 20:13:52 (UTC)
  • 16-11-2020 21:13:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8720, 14.1350 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Geraci Siculo PA 2 1945 1945
San Mauro Castelverde PA 7 1701 3646
Castelbuono PA 8 8943 12589
Petralia Sottana PA 8 2821 15410
Petralia Soprana PA 9 3360 18770
Gangi PA 10 6811 25581
Castellana Sicula PA 13 3411 28992
Polizzi Generosa PA 14 3407 32399
Pollina PA 14 2974 35373
Isnello PA 14 1589 36962
Bompietro PA 14 1401 38363
Blufi PA 14 1029 39392
Castel di Lucio ME 16 1294 40686
Tusa ME 16 2925 43611
Pettineo ME 17 1350 44961
Gratteri PA 18 963 45924
Collesano PA 18 4054 49978
Motta d'Affermo ME 19 739 50717
Alimena PA 20 2032 52749

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km N of Caltanissetta (63360 inhabitants)
59 Km E of Bagheria (55387 inhabitants)
73 Km E of Palermo (674435 inhabitants)
79 Km NE of Agrigento (59770 inhabitants)
90 Km N of Gela (75827 inhabitants)
93 Km W of Catania (314555 inhabitants)
95 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
Reviewed
Rev100 		ML 1.3 2020-11-16
20:13:52		 37.8723 14.1353 11 2020-11-16
20:19:55		 Sala Sismica INGV-Roma 84780571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-16 20:13:52 ± 0.11
Latitude 37.8723 ± 0.0063
Longitude 14.1353 ± 0.0125
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84780571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1070
Semi-minor axis of confidence ellipse (meter) 630
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 270
Circular confidence region, given by single value of horizontal uncertainty (meter) 1070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.39390
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 84780571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-16 20:19:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IVPL.HHZ. 2020-11-16T20:14:22.19 3.0 undecidable manual S -0.05 0
IV.ILOS.HHZ. 2020-11-16T20:14:09.74 3.0 negative manual P -0.04 0
IV.RESU.HHZ. 2020-11-16T20:14:01.29 0.3 undecidable manual S 195 25.9518 50 -0.31 69
IV.GALF.HHZ. 2020-11-16T20:14:00.61 0.3 undecidable manual P 115 41.8248 50 0.55 63
IV.SCIAR.HHZ. 2020-11-16T20:13:59.07 0.3 undecidable manual P 283 34.6431 50 0.12 70
IV.GIB.HHZ. 2020-11-16T20:13:59.36 0.3 undecidable manual S 324 16.1727 124 0.4 68
IV.MSFR.HHZ. 2020-11-16T20:13:59.73 0.6 undecidable manual P 66 43.7229 50 -0.63 40
IV.PLLN.EHZ. 2020-11-16T20:13:58.30 0.3 undecidable manual S 3 13.3755 129 0.13 73
IV.RESU.HHZ. 2020-11-16T20:13:57.88 0.3 undecidable manual P 195 25.9518 50 0.27 69
IV.CSLB.HHZ. 2020-11-16T20:13:57.10 0.3 undecidable manual S 317 9.879 138 -0.2 72
IV.PETRA.HHZ. 2020-11-16T20:13:56.41 0.3 undecidable manual S 203 4.6953 157 0.1 74
IV.GIB.HHZ. 2020-11-16T20:13:56.00 0.3 undecidable manual P 324 16.1727 124 -0.09 73
IV.PLLN.EHZ. 2020-11-16T20:13:55.45 0.1 positive manual P 3 13.3755 129 -0.19 96
IV.PETRA.HHZ. 2020-11-16T20:13:54.51 0.1 negative manual P 203 4.6953 157 -0.06 100
IV.CSLB.HHZ. 2020-11-16T20:13:54.95 0.3 negative manual P 317 9.879 138 -0.18 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHE. ML:1.3 0.00023249999999999999 0.58 AML other m 2020-11-16T20:13:57.25
IV.CSLB.HHN. ML:1.2 0.000188 0.78 AML other m 2020-11-16T20:13:57.62
IV.GIB.HHN. ML:1.4 0.000235 0.32 AML other m 2020-11-16T20:14:01.98
IV.GIB.HHE. ML:1.4 0.000213 0.62 AML other m 2020-11-16T20:14:02.59
IV.RESU.HHN. ML:0.0 0.000122 1.34 AML other m 2020-11-16T20:14:05.99
IV.RESU.HHE. ML:0.0 0.000087 0.42 AML other m 2020-11-16T20:14:09.57
IV.PETRA.HHE. ML:1.4 0.0003995724 0.256 AML other m 2020-11-16T20:13:57.09
IV.PETRA.HHN. ML:1.5 0.00053210855 0.2688 AML other m 2020-11-16T20:13:56.62
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