Earthquake with magnitude of ML 1.4 on date 23-10-2020 and time 08:41:11 (Italy) in region 6 km N Polizzi Generosa (PA)

A magnitude ML 1.4 earthquake occured in region: 6 km N Polizzi Generosa (PA), on

  • 23-10-2020 06:41:11 (UTC)
  • 23-10-2020 08:41:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.87, 14 at 24 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 6 3407 3407
Collesano PA 8 4054 7461
Isnello PA 8 1589 9050
Scillato PA 9 613 9663
Castellana Sicula PA 10 3411 13074
Castelbuono PA 10 8943 22017
Petralia Sottana PA 10 2821 24838
Gratteri PA 11 963 25801
Caltavuturo PA 11 4017 29818
Petralia Soprana PA 12 3360 33178
Geraci Siculo PA 13 1945 35123
Sclafani Bagni PA 14 426 35549
Blufi PA 15 1029 36578
Lascari PA 16 3588 40166
Bompietro PA 16 1401 41567
Cerda PA 17 5330 46897
San Mauro Castelverde PA 17 1701 48598
Campofelice di Roccella PA 17 7537 56135
Pollina PA 19 2974 59109
Cefal├╣ PA 19 14393 73502
Gangi PA 19 6811 80313
Aliminusa PA 20 1236 81549

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Caltanissetta (63360 inhabitants)
49 Km SE of Bagheria (55387 inhabitants)
63 Km E of Palermo (674435 inhabitants)
72 Km NE of Agrigento (59770 inhabitants)
92 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 1.4 2020-10-23
06:41:11
37.87 14 24 2021-02-26
14:56:00
Bollettino Sismico Italiano INGV 84052581
Reviewed
Rev100
ML 1.4 2020-10-23
06:41:11
37.93 14 25 2020-10-23
06:48:29
Sala Sismica INGV-Roma 84049911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-23 06:41:11 ± 0.28
Latitude 37.87 ± 0.02
Longitude 14.00 ± 0.01
Depth (km) 24 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84052581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1447
Semi-minor axis of confidence ellipse (meter) 987
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 1
Circular confidence region, given by single value of horizontal uncertainty (meter) 1450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
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) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.07914
Epicentral distance of station farthest from the epicenter (degree) 0.49013
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:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 84052581
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-22 16:22:32

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 12
Type of magnitude ML
Reference to an origin 84049911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-23 06:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSFR.HHE. 2020-10-23T06:41:21.32 0.6 undecidable manual P 70 0.4901 107 0.19 45
IV.SCIAR.HHZ. 2020-10-23T06:41:21.30 0.3 undecidable manual S 289 0.2131 130 0.05 74
IV.PLLN.EHZ. 2020-10-23T06:41:20.39 0.3 undecidable manual S 42 0.1637 139 0.2 71
IV.GIB.HHZ. 2020-10-23T06:41:19.80 0.3 undecidable manual S 8 0.1214 148 0.37 69
IV.CSLB.HHZ. 2020-10-23T06:41:18.60 0.6 undecidable manual S 32 0.0791 158 -0.26 48
IV.PETRA.HHZ. 2020-10-23T06:41:18.94 0.6 undecidable manual S 113 0.0944 154 -0.11 50
IV.RESU.HHZ. 2020-10-23T06:41:17.60 0.3 undecidable manual P 170 0.2266 128 0.5 66
IV.PLLN.EHZ. 2020-10-23T06:41:16.23 0.1 undecidable manual P 42 0.1637 139 -0.08 98
IV.SCIAR.HHZ. 2020-10-23T06:41:16.95 0.1 undecidable manual P 289 0.2131 130 0.03 98
IV.GIB.HHZ. 2020-10-23T06:41:15.86 0.1 undecidable manual P 8 0.1214 148 -0.01 100
IV.CSLB.HHZ. 2020-10-23T06:41:15.23 0.1 undecidable manual P 32 0.0791 158 -0.31 95
IV.PETRA.HHZ. 2020-10-23T06:41:15.31 0.1 undecidable manual P 113 0.0944 154 -0.34 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHN. ML:1.5 0.0001995 0.38 AML other m 2020-10-23T06:41:18.75
IV.CSLB.HHE. ML:1.2 0.000106 0.46 AML other m 2020-10-23T06:41:18.73
IV.PETRA.HHN. ML:1.3 0.0001315 0.46 AML other m 2020-10-23T06:41:20.19
IV.GIB.HHE. ML:1.5 0.0001925 0.28 AML other m 2020-10-23T06:41:20.34
IV.PETRA.HHE. ML:1.4 0.0001385 1.32 AML other m 2020-10-23T06:41:20.97
IV.GIB.HHN. ML:1.9 0.000439 0.34 AML other m 2020-10-23T06:41:20.39
IV.PLLN.EHE. ML:1.5 0.000159 0.56 AML other m 2020-10-23T06:41:21.31
IV.SCIAR.HHE. ML:1.5 0.0001375 0.3 AML other m 2020-10-23T06:41:22.22
IV.SCIAR.HHN. ML:1.3 9.64E-5 1.64 AML other m 2020-10-23T06:41:23.88
IV.PLLN.EHN. ML:1.4 0.000135 1.62 AML other m 2020-10-23T06:41:23.85
IV.RESU.HHE. ML:1.3 8.18E-5 0.32 AML other m 2020-10-23T06:41:25.48
IV.RESU.HHN. ML:1.4 0.00010295 0.46 AML other m 2020-10-23T06:41:25.71
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