Earthquake with magnitude of ML 1.1 on date 24-02-2020 and time 10:44:13 (UTC) in region 3 km SE Polizzi Generosa (PA)

A magnitude ML 1.1 earthquake occured in region: 3 km SE Polizzi Generosa (PA), on

  • 24-02-2020 10:44:13 (UTC)
  • 24-02-2020 11:44:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7920, 14.0100 at 22 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 3 3407 3407
Castellana Sicula PA 3 3411 6818
Blufi PA 7 1029 7847
Petralia Sottana PA 8 2821 10668
Petralia Soprana PA 9 3360 14028
Bompietro PA 9 1401 15429
Caltavuturo PA 11 4017 19446
Scillato PA 12 613 20059
Resuttano CL 12 2038 22097
Sclafani Bagni PA 14 426 22523
Alimena PA 14 2032 24555
Geraci Siculo PA 15 1945 26500
Collesano PA 16 4054 30554
Valledolmo PA 17 3594 34148
Isnello PA 17 1589 35737
Gangi PA 17 6811 42548
Castelbuono PA 17 8943 51491
Gratteri PA 20 963 52454
Vallelunga Pratameno CL 20 3461 55915

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of Caltanissetta (63360 inhabitants)
54 Km SE of Bagheria (55387 inhabitants)
65 Km NE of Agrigento (59770 inhabitants)
67 Km SE of Palermo (674435 inhabitants)
83 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 1.1 2020-02-24
10:44:13
37.7917 14.0098 22 2020-07-18
21:08:41
Bollettino Sismico Italiano INGV 80499811
Reviewed
Rev100
ML 1.0 2020-02-24
10:44:14
37.7877 14.006 16 2020-02-24
10:54:25
Sala Sismica INGV-Roma 76770541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-24 10:44:13 ± 0.71
Latitude 37.7917 ± 0.0261
Longitude 14.0098 ± 0.0387
Depth (km) 22 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80499811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3017
Semi-minor axis of confidence ellipse (meter) 2987
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 337
Circular confidence region, given by single value of horizontal uncertainty (meter) 3020.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 195
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.20684
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 80499811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-25 16:55:47

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 76770541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-24 10:54:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIB.HHZ. 2020-02-24T10:44:23.73 0.6 undecidable manual S 4 22.0668 128 0.66 43
IV.ACATE.EHZ. 2020-02-24T10:44:23.27 3.0 undecidable manual P 0
IV.CSLB.HHZ. 2020-02-24T10:44:21.71 0.3 undecidable manual S 15 16.6722 137 -0.3 72
IV.PETRA.HHZ. 2020-02-24T10:44:20.78 0.6 undecidable manual S 63 10.2786 151 -0.22 49
IV.CLTA.HHZ. 2020-02-24T10:44:19.14 3.0 undecidable manual P 0
IV.GIB.HHZ. 2020-02-24T10:44:19.30 0.1 undecidable manual P 4 22.0668 128 0.22 97
IV.ALJA.HHZ. 2020-02-24T10:44:19.15 0.1 undecidable manual P 258 22.9548 127 -0.04 100
IV.PETRA.HHZ. 2020-02-24T10:44:18.08 0.1 undecidable manual P 63 10.2786 151 0.19 99
IV.CSLB.HHZ. 2020-02-24T10:44:18.11 0.1 undecidable manual P 15 16.6722 137 -0.36 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHN. ML:1.2 0.00010071168499999999 0.016 AML other m 2020-02-24T10:44:22.04
IV.CSLB.HHN. ML:0.9 0.0000451 1.84 AML other m 2020-02-24T10:44:22.94
IV.PETRA.HHE. ML:1.3 0.00013986515 0.576 AML other m 2020-02-24T10:44:24.39
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