Earthquake with magnitude of ML 1.5 on date 20-02-2020 and time 05:30:23 (Italy) in region 3 km NE Scillato (PA)

A magnitude ML 1.5 earthquake occured in region: 3 km NE Scillato (PA), on

  • 20-02-2020 04:30:23 (UTC)
  • 20-02-2020 05:30:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.88, 13.94 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Scillato PA 3 613 613
Collesano PA 5 4054 4667
Caltavuturo PA 8 4017 8684
Polizzi Generosa PA 9 3407 12091
Sclafani Bagni PA 10 426 12517
Isnello PA 10 1589 14106
Gratteri PA 11 963 15069
Cerda PA 11 5330 20399
Campofelice di Roccella PA 14 7537 27936
Lascari PA 14 3588 31524
Aliminusa PA 14 1236 32760
Castellana Sicula PA 14 3411 36171
Castelbuono PA 15 8943 45114
Montemaggiore Belsito PA 16 3365 48479
Petralia Sottana PA 16 2821 51300
Sciara PA 16 2822 54122
Valledolmo PA 17 3594 57716
Petralia Soprana PA 18 3360 61076
Blufi PA 19 1029 62105
Geraci Siculo PA 19 1945 64050
Cefal├╣ PA 20 14393 78443

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km SE of Bagheria (55387 inhabitants)
44 Km N of Caltanissetta (63360 inhabitants)
57 Km SE of Palermo (674435 inhabitants)
70 Km NE of Agrigento (59770 inhabitants)
94 Km N of Gela (75827 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.5 2020-02-20
04:30:23
37.88 13.94 11 2020-02-20
04:37:49
Sala Sismica INGV-Roma 76662371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-20 04:30:23 ± 0.27
Latitude 37.88 ± 0.01
Longitude 13.94 ± 0.01
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76662371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1540
Semi-minor axis of confidence ellipse (meter) 995
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 334
Circular confidence region, given by single value of horizontal uncertainty (meter) 1540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.25001
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 76662371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-20 04:37:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LAV9.HHZ. 2020-02-20T04:32:00.79 3.0 undecidable manual Sg 18.98 0
IV.APEC.HHZ. 2020-02-20T04:31:29.76 3.0 positive manual Pn 4.71 0
IV.CAFE.HHZ. 2020-02-20T04:31:27.28 3.0 undecidable manual Sn -0.2 0
IV.FIAM.HHZ. 2020-02-20T04:31:11.60 3.0 positive manual Pn 4.82 0
IV.MIDA.HHZ. 2020-02-20T04:30:58.71 3.0 undecidable manual Pn 0.78 0
IV.ACATE.EHZ. 2020-02-20T04:30:34.78 3.0 negative manual Pn -0.26 0
IV.RESU.HHZ. 2020-02-20T04:30:33.84 0.6 undecidable manual S 158 0.25 50 0.13 50
IV.ALJA.HHZ. 2020-02-20T04:30:32.40 0.6 undecidable manual S 228 0.1943 50 0.35 48
IV.PETRA.HHZ. 2020-02-20T04:30:30.36 0.6 undecidable manual S 108 0.1475 124 -0.23 50
IV.CSLB.HHZ. 2020-02-20T04:30:30.27 0.6 undecidable manual S 58 0.1124 131 0.76 42
IV.CRJA.HHZ. 2020-02-20T04:30:30.40 3.0 undecidable manual P -0.33 0
IV.RESU.HHZ. 2020-02-20T04:30:29.45 0.6 undecidable manual P 158 0.25 50 -0.07 50
IV.GIB.HHE. 2020-02-20T04:30:29.40 0.6 undecidable manual S 32 0.1322 127 -0.71 43
IV.ALJA.HHZ. 2020-02-20T04:30:28.31 0.6 negative manual P 228 0.1943 50 -0.25 49
IV.CSLB.HHZ. 2020-02-20T04:30:27.55 0.3 positive manual P 58 0.1124 131 0.46 71
IV.GIB.HHE. 2020-02-20T04:30:27.39 0.6 undecidable manual P 32 0.1322 127 -0.05 51
IV.PETRA.HHZ. 2020-02-20T04:30:27.51 0.1 positive manual P 108 0.1475 124 -0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHN. ML:1.7 0.000419 0.48 AML other m 2020-02-20T04:30:32.50
IV.CSLB.HHE. ML:1.2 0.0001525 0.58 AML other m 2020-02-20T04:30:32.31
IV.CSLB.HHN. ML:1.2 0.000157 1.22 AML other m 2020-02-20T04:30:32.98
IV.PETRA.HHE. ML:1.8 0.000506 1.52 AML other m 2020-02-20T04:30:34.79
IV.RESU.HHN. ML:1.7 0.0002365 1.2 AML other m 2020-02-20T04:30:39.12
IV.RESU.HHE. ML:1.4 0.00012545 1.12 AML other m 2020-02-20T04:30:48.87
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download