Earthquake with magnitude of ML 1.1 on date 24-02-2020 and time 22:59:10 (Italy) in region 4 km E Caltavuturo (PA)

A magnitude ML 1.1 earthquake occured in region: 4 km E Caltavuturo (PA), on

  • 24-02-2020 21:59:10 (UTC)
  • 24-02-2020 22:59:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.82, 13.93 at 6 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
Caltavuturo PA 4 4017 4017
Scillato PA 5 613 4630
Polizzi Generosa PA 6 3407 8037
Sclafani Bagni PA 7 426 8463
Castellana Sicula PA 11 3411 11874
Collesano PA 11 4054 15928
Valledolmo PA 12 3594 19522
Cerda PA 14 5330 24852
Aliminusa PA 14 1236 26088
Petralia Sottana PA 14 2821 28909
Blufi PA 15 1029 29938
Montemaggiore Belsito PA 15 3365 33303
Isnello PA 15 1589 34892
Petralia Soprana PA 16 3360 38252
Gratteri PA 17 963 39215
Bompietro PA 17 1401 40616
Resuttano CL 18 2038 42654
Vallelunga Pratameno CL 18 3461 46115
Sciara PA 18 2822 48937
Castelbuono PA 19 8943 57880
Campofelice di Roccella PA 19 7537 65417
Lascari PA 20 3588 69005
Alia PA 20 3623 72628
Villalba CL 20 1633 74261

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km N of Caltanissetta (63360 inhabitants)
47 Km SE of Bagheria (55387 inhabitants)
60 Km SE of Palermo (674435 inhabitants)
65 Km NE of Agrigento (59770 inhabitants)
89 Km NW 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 1.1 2020-02-24
21:59:10
37.82 13.93 6 2020-02-24
22:11:07
Sala Sismica INGV-Roma 76784641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-24 21:59:10 ± 0.08
Latitude 37.82 ± 0.00
Longitude 13.93 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76784641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 483
Semi-minor axis of confidence ellipse (meter) 365
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 328
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.14389
Epicentral distance of station farthest from the epicenter (degree) 0.50092
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 76784641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-24 22:11:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CORL.HHZ. 2020-02-24T21:59:21.15 0.6 undecidable manual P 278 0.5009 50 -0.06 48
IV.PLLN.EHZ. 2020-02-24T21:59:20.21 1.0 undecidable manual S 44 0.2374 103 0.24 24
IV.SOLUN.HHZ. 2020-02-24T21:59:19.62 1.0 undecidable manual P 311 0.4146 50 -0.1 24
IV.CMDO.HHZ. 2020-02-24T21:59:19.03 1.0 undecidable manual P 194 0.3687 99 0.16 24
IV.GIB.HHZ. 2020-02-24T21:59:18.05 1.0 undecidable manual S 24 0.1826 107 0.11 25
IV.RESU.HHZ. 2020-02-24T21:59:18.79 1.0 undecidable manual S 151 0.2014 105 0.17 25
IV.ALJA.HHZ. 2020-02-24T21:59:17.08 1.0 undecidable manual S 242 0.1592 109 0.01 26
IV.PETRA.HHZ. 2020-02-24T21:59:16.27 0.6 undecidable manual S 86 0.1439 111 -0.25 50
IV.CSLB.HHZ. 2020-02-24T21:59:16.81 1.0 undecidable manual S 41 0.1511 110 0.03 26
IV.RESU.HHZ. 2020-02-24T21:59:15.64 0.6 negative manual P 151 0.2014 105 0.42 47
IV.PLLN.EHZ. 2020-02-24T21:59:15.94 1.0 positive manual P 44 0.2374 103 -0.06 25
IV.GIB.HHZ. 2020-02-24T21:59:15.14 0.6 undecidable manual P 24 0.1826 107 0.32 49
IV.ALJA.HHZ. 2020-02-24T21:59:14.07 0.6 positive manual P 242 0.1592 109 -0.26 50
IV.CSLB.HHZ. 2020-02-24T21:59:14.20 1.0 undecidable manual P 41 0.1511 110 0.04 26
IV.PETRA.HHZ. 2020-02-24T21:59:13.79 0.1 positive manual P 86 0.1439 111 -0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLLN.EHN. ML:1.5 0.0001719812 0.3584 AML other m 2020-02-24T21:59:23.71
IV.PETRA.HHN. ML:1.4 0.00028293685 0.4224 AML other m 2020-02-24T21:59:16.45
IV.ALJA.HHN. ML:0.9 7.8479225E-5 0.4224 AML other m 2020-02-24T21:59:17.16
IV.RESU.HHE. ML:0.8 0.0001669009 0.3584 AML other m 2020-02-24T21:59:23.32
IV.RESU.HHN. ML:0.8 0.000151623385 0.3968 AML other m 2020-02-24T21:59:25.81
IV.PLLN.EHE. ML:1.2 0.0001184059 0.9216 AML other m 2020-02-24T21:59:24.42
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