Earthquake with magnitude of ML 1.5 on date 12-05-2023 and time 04:21:57 (Italy) in region 3 km NW Petralia Sottana (PA)

A magnitude ML 1.5 earthquake occured in region: 3 km NW Petralia Sottana (PA), on

  • 12-05-2023 02:21:57 (UTC)
  • 12-05-2023 04:21:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8300, 14.0730 at 9 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 3 2821 2821
Petralia Soprana PA 5 3360 6181
Castellana Sicula PA 6 3411 9592
Polizzi Generosa PA 7 3407 12999
Geraci Siculo PA 8 1945 14944
Blufi PA 9 1029 15973
Bompietro PA 9 1401 17374
Castelbuono PA 12 8943 26317
Gangi PA 12 6811 33128
Isnello PA 14 1589 34717
San Mauro Castelverde PA 14 1701 36418
Scillato PA 15 613 37031
Collesano PA 16 4054 41085
Alimena PA 16 2032 43117
Caltavuturo PA 16 4017 47134
Resuttano CL 17 2038 49172
Gratteri PA 18 963 50135
Sclafani Bagni PA 19 426 50561
Pollina PA 20 2974 53535

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km N of Caltanissetta (63360 inhabitants)
57 Km SE of Bagheria (55387 inhabitants)
70 Km E of Palermo (674435 inhabitants)
72 Km NE of Agrigento (59770 inhabitants)
86 Km N of Gela (75827 inhabitants)
96 Km W of Catania (314555 inhabitants)
99 Km W of Acireale (52622 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
Reviewed
Rev100
ML 1.5 2023-05-12
02:21:57
37.8298 14.0727 9 2023-05-12
04:09:30
Sala Sismica INGV-Roma 117271211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-12 02:21:57 ± 0.12
Latitude 37.8298 ± 0.0045
Longitude 14.0727 ± 0.0102
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117271211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 867
Semi-minor axis of confidence ellipse (meter) 267
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 870.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
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) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.10792
Epicentral distance of station farthest from the epicenter (degree) 0.45686
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 117271211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-12 04:09:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ALJA.HHZ. 2023-05-12T02:22:07.99 0.6 undecidable manual S 252 29.3484 107 0.03 49
IV.CIMI.HHE. 2023-05-12T02:22:06.05 0.3 undecidable manual P 278 44.1225 50 0.2 69
IV.MSFR.HHE. 2023-05-12T02:22:06.96 0.6 undecidable manual P 63 50.7159 50 0.09 47
IV.RESU.HHZ. 2023-05-12T02:22:05.52 0.6 undecidable manual S 184 20.3685 113 0.5 45
IV.GIB.HHZ. 2023-05-12T02:22:04.99 0.6 undecidable manual S 347 18.2706 116 0.63 43
IV.PLLN.EHZ. 2023-05-12T02:22:04.41 0.6 undecidable manual S 19 19.0698 115 -0.21 48
IV.ALJA.HHZ. 2023-05-12T02:22:03.05 0.3 undecidable manual P 252 29.3484 107 -0.42 68
IV.CSLB.HHZ. 2023-05-12T02:22:02.64 0.6 undecidable manual S 354 11.9769 126 0.15 49
IV.RESU.HHZ. 2023-05-12T02:22:01.65 0.1 undecidable manual P 184 20.3685 113 -0.12 98
IV.GIB.HHZ. 2023-05-12T02:22:01.28 0.1 undecidable manual P 347 18.2706 116 -0.11 98
IV.PLLN.EHZ. 2023-05-12T02:22:01.47 0.1 undecidable manual P 19 19.0698 115 -0.07 99
IV.CSLB.HHZ. 2023-05-12T02:22:00.23 0.1 positive manual P 354 11.9769 126 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HNN. ML:1.4 0.0002635 1.56 AML other m 2023-05-12T02:22:03.89
IV.CSLB.HHN. ML:1.4 0.0002725 1.56 AML other m 2023-05-12T02:22:03.90
IV.CSLB.HNE. ML:1.4 0.00032 0.54 AML other m 2023-05-12T02:22:04.27
IV.CSLB.HHE. ML:1.4 0.0003165 0.52 AML other m 2023-05-12T02:22:04.28
IV.GIB.HHE. ML:1.5 0.000286 0.64 AML other m 2023-05-12T02:22:06.42
IV.RESU.HHE. ML:1.7 0.00035299999999999996 0.4 AML other m 2023-05-12T02:22:07.35
IV.RESU.HNN. ML:1.6 0.00028550000000000005 0.4 AML other m 2023-05-12T02:22:07.50
IV.RESU.HNE. ML:1.4 0.0001785 0.4 AML other m 2023-05-12T02:22:07.36
IV.RESU.HHN. ML:1.9 0.0005589999999999999 0.42 AML other m 2023-05-12T02:22:07.49
IV.GIB.HHN. ML:1.5 0.00028500000000000004 0.4 AML other m 2023-05-12T02:22:07.50
IV.PLLN.EHN. ML:1.5 0.000241 0.88 AML other m 2023-05-12T02:22:08.90
IV.PLLN.EHE. ML:1.4 0.000192 0.56 AML other m 2023-05-12T02:22:10.47
IV.ALJA.HHE. ML:1.4 0.0001225 0.44 AML other m 2023-05-12T02:22:11.29
IV.ALJA.HHN. ML:1.6 0.00020899999999999998 0.48 AML other m 2023-05-12T02:22:11.42
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