Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 12-09-2023 and time 05:11:04 (UTC) in region Costa Siciliana centro settentrionale (Palermo)

A magnitude ML 1.6 earthquake occured in region: Costa Siciliana centro settentrionale (Palermo), on

  • 12-09-2023 05:11:04 (UTC)
  • 12-09-2023 07:11:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.0840, 13.8430 at 5 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Campofelice di Roccella PA 11 7537 7537
Lascari PA 13 3588 11125
Cefalù PA 17 14393 25518
Termini Imerese PA 17 26263 51781
Gratteri PA 17 963 52744
Trabia PA 19 10505 63249
Collesano PA 20 4054 67303
Sciara PA 20 2822 70125
Cerda PA 20 5330 75455

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Bagheria (55387 inhabitants)
42 Km E of Palermo (674435 inhabitants)
69 Km N of Caltanissetta (63360 inhabitants)
89 Km N of Agrigento (59770 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 1.6 2023-09-12
05:11:04		 38.0843 13.8428 5 2023-09-12
05:26:29		 Sala Sismica INGV-Roma 120994681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-12 05:11:04 ± 0.36
Latitude 38.0843 ± 0.0378
Longitude 13.8428 ± 0.0160
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120994681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4340
Semi-minor axis of confidence ellipse (meter) 820
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 4340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.57
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.71856
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.5
Num. used stations 14
Type of magnitude ML
Reference to an origin 120994681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-12 05:26:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SBPO.HNZ. 2023-09-12T05:12:57.80 3.0 negative manual Pn 4.96 0
IV.CIGN.HHZ. 2023-09-12T05:12:45.98 3.0 undecidable manual Sn -1.28 0
IV.OSSC.HHZ. 2023-09-12T05:12:45.21 3.0 undecidable manual Pg 13.19 0
IV.ZCCA.HHZ. 2023-09-12T05:12:41.70 3.0 undecidable manual Pn -1.89 0
GE.MATE.HHZ. 2023-09-12T05:12:34.82 3.0 undecidable manual Sn -4.22 0
IV.CSNT.HHZ. 2023-09-12T05:12:33.78 3.0 undecidable manual Pn 2.56 0
IV.MF5.EHZ. 2023-09-12T05:12:23.78 3.0 undecidable manual Pn 3.87 0
IV.ATFO.HHZ. 2023-09-12T05:12:23.48 3.0 negative manual Pn -2.79 0
IV.ARRO.EHZ. 2023-09-12T05:12:19.49 3.0 undecidable manual Pn 4.2 0
IV.SERS.HHZ. 2023-09-12T05:12:12.04 3.0 undecidable manual Sn -1.44 0
IV.SPS2.HHZ. 2023-09-12T05:12:11.98 3.0 undecidable manual Sn 0.96 0
IV.SACR.HHZ. 2023-09-12T05:12:04.46 3.0 undecidable manual Pg 5.85 0
IV.GIUL.HHZ. 2023-09-12T05:12:02.08 3.0 undecidable manual Pn 1.44 0
IV.PZUN.HHZ. 2023-09-12T05:11:52.90 3.0 undecidable manual Pn 0.33 0
IX.SNR3.EHZ.02 2023-09-12T05:11:50.10 3.0 undecidable manual Pn -0.99 0
IV.ACATE.EHZ. 2023-09-12T05:11:42.84 3.0 undecidable manual S 5.09 0
IV.CRJA.HHE. 2023-09-12T05:11:31.45 0.3 undecidable manual S 247 79.7646 50 1.54 39
7C.SPAOL.HNZ. 2023-09-12T05:11:23.02 3.0 positive manual P -0.18 0
IV.CRJA.HHE. 2023-09-12T05:11:20.23 0.1 undecidable manual P 247 79.7646 50 0.9 73
IV.MBFT.HHZ. 2023-09-12T05:11:20.35 3.0 positive manual P -0.26 0
IV.MPG.HHE. 2023-09-12T05:11:19.30 0.3 undecidable manual S 282 43.0236 97 -0.61 66
IV.GALF.HHE. 2023-09-12T05:11:19.52 0.1 undecidable manual P 123 75.6687 50 0.82 76
IV.PLLN.EHZ. 2023-09-12T05:11:15.17 0.6 undecidable manual S 111 28.1496 101 0.36 49
IV.SOLUN.HHZ. 2023-09-12T05:11:14.17 0.3 undecidable manual S 272 27.1506 101 -0.29 74
IV.MPG.HHE. 2023-09-12T05:11:14.51 0.1 undecidable manual P 282 43.0236 97 0.96 76
IV.CORL.HHZ. 2023-09-12T05:11:14.87 1.0 positive manual P 246 51.6039 50 -0.12 24
IV.CSLB.HNZ. 2023-09-12T05:11:13.39 0.3 undecidable manual S 131 24.8529 102 -0.31 74
IV.MARIO.HHE. 2023-09-12T05:11:11.95 0.1 undecidable manual P 248 38.628 98 -0.73 84
IV.GIB.HHZ. 2023-09-12T05:11:11.96 0.6 undecidable manual S 123 19.0698 105 0.21 51
IV.ALJA.HHZ. 2023-09-12T05:11:11.22 3.0 positive manual P 0.68 0
IV.PLLN.EHZ. 2023-09-12T05:11:10.38 0.1 negative manual P 111 28.1496 101 -0.23 100
IV.CSLB.HNZ. 2023-09-12T05:11:09.34 0.1 undecidable manual P 131 24.8529 102 -0.63 90
IV.SOLUN.HHZ. 2023-09-12T05:11:09.89 0.1 undecidable manual P 272 27.1506 101 -0.51 94
IV.GIB.HHZ. 2023-09-12T05:11:08.32 1.0 negative manual P 123 19.0698 105 -0.53 24
IV.RESU.HNZ. 2023-09-12T05:11:02.92 0.1 undecidable manual P 52.0035 -9.99 0
IV.CIMI.HHE. 2023-09-12T05:10:59.34 0.1 undecidable manual P 32.6451 -9.99 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GIB.HHN. ML:1.6 0.0003435 1.56 AML other m 2023-09-12T05:11:13.81
IV.GIB.HHE. ML:1.8 0.0005349999999999999 1.5 AML other m 2023-09-12T05:11:14.81
IV.SOLUN.HHN. ML:1.5 0.000182 0.46 AML other m 2023-09-12T05:11:14.70
IV.PLLN.EHN. ML:1.5 0.0001825 0.7 AML other m 2023-09-12T05:11:15.61
IV.SOLUN.HHE. ML:1.5 0.000189 0.58 AML other m 2023-09-12T05:11:16.76
IV.PLLN.EHE. ML:1.4 0.0001455 1.26 AML other m 2023-09-12T05:11:16.95
IV.CORL.HHN. ML:1.6 0.00009005 0.52 AML other m 2023-09-12T05:11:26.60
IV.CORL.HHE. ML:1.6 0.00009504999999999999 0.72 AML other m 2023-09-12T05:11:27.08
IV.MBFT.HHN. ML:1.2 0.00002315 1.58 AML other m 2023-09-12T05:11:33.05
IV.MBFT.HHE. ML:1.2 0.00002395 1.38 AML other m 2023-09-12T05:11:33.00
7C.SPAOL.HNE. ML:4.3 0.0134 0.82 AML other m 2023-09-12T05:11:57.77
7C.SPAOL.HNN. ML:4.2 0.0105 0.42 AML other m 2023-09-12T05:11:59.42
IV.SPS2.HHE. ML:2.0 0.000019950000000000004 0.1 AML other m 2023-09-12T05:12:17.16
IV.SPS2.HHN. ML:2.0 0.00002095 0.16 AML other m 2023-09-12T05:12:32.80
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