Earthquake with magnitude of ML 1.4 on date 24-03-2020 and time 06:24:31 (Italy) in region 7 km N Petralia Sottana (PA)

A magnitude ML 1.4 earthquake occured in region: 7 km N Petralia Sottana (PA), on

  • 24-03-2020 05:24:31 (UTC)
  • 24-03-2020 06:24:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.87, 14.07 at 10 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
Petralia Sottana PA 7 2821 2821
Geraci Siculo PA 8 1945 4766
Castelbuono PA 8 8943 13709
Petralia Soprana PA 9 3360 17069
Polizzi Generosa PA 9 3407 20476
Castellana Sicula PA 10 3411 23887
Isnello PA 10 1589 25476
San Mauro Castelverde PA 12 1701 27177
Blufi PA 13 1029 28206
Collesano PA 13 4054 32260
Bompietro PA 14 1401 33661
Gratteri PA 14 963 34624
Gangi PA 14 6811 41435
Scillato PA 14 613 42048
Pollina PA 16 2974 45022
Caltavuturo PA 17 4017 49039
Lascari PA 19 3588 52627
Cefal├╣ PA 20 14393 67020
Sclafani Bagni PA 20 426 67446
Tusa ME 20 2925 70371
Alimena PA 20 2032 72403

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Caltanissetta (63360 inhabitants)
54 Km E of Bagheria (55387 inhabitants)
68 Km E of Palermo (674435 inhabitants)
75 Km NE of Agrigento (59770 inhabitants)
91 Km N of Gela (75827 inhabitants)
98 Km W of Catania (314555 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 1.4 2020-03-24
05:24:31
37.87 14.07 10 2020-03-24
05:37:47
Sala Sismica INGV-Roma 77522661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-24 05:24:31 ± 0.21
Latitude 37.87 ± 0.01
Longitude 14.07 ± 0.02
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77522661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1774
Semi-minor axis of confidence ellipse (meter) 767
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 85
Circular confidence region, given by single value of horizontal uncertainty (meter) 1770
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.06925
Epicentral distance of station farthest from the epicenter (degree) 0.27699
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 77522661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-24 05:37:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ALJA.HHZ. 2020-03-24T05:24:42.38 0.3 undecidable manual S 245 0.277 50 -0.02 100
IV.RESU.HHZ. 2020-03-24T05:24:40.93 0.6 undecidable manual S 183 0.2221 111 0.4 62
IV.PLLN.EHZ. 2020-03-24T05:24:37.84 0.6 undecidable manual S 25 0.1367 122 0.25 65
IV.ALJA.HHZ. 2020-03-24T05:24:37.99 0.6 positive manual P 245 0.277 50 0.25 64
IV.GIB.HHZ. 2020-03-24T05:24:37.04 0.6 undecidable manual S 344 0.1268 124 -0.22 66
IV.CSLB.HHZ. 2020-03-24T05:24:35.71 0.6 undecidable manual S 352 0.0692 141 0.09 68
IV.RESU.HHZ. 2020-03-24T05:24:35.91 0.6 positive manual P 183 0.2221 111 -0.75 55
IV.GIB.HHZ. 2020-03-24T05:24:35.04 1.0 undecidable manual P 344 0.1268 124 0.26 33
IV.PLLN.EHZ. 2020-03-24T05:24:34.76 0.6 negative manual P 25 0.1367 122 -0.2 66
IV.CSLB.HHZ. 2020-03-24T05:24:33.83 0.6 positive manual P 352 0.0692 141 0 70
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHE. ML:1.3 0.000277 0.54 AML other m 2020-03-24T05:24:36.32
IV.CSLB.HHN. ML:1.1 0.0001905 1.64 AML other m 2020-03-24T05:24:36.98
IV.RESU.HHN. ML:1.7 0.0003205 0.56 AML other m 2020-03-24T05:24:41.79
IV.RESU.HHE. ML:1.5 0.000201 0.4 AML other m 2020-03-24T05:24:42.31
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