Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 11-09-2024 and time 20:20:30 (UTC) in region 5 km W Castel di Lucio (ME)

A magnitude ML 1.1 earthquake occured in region: 5 km W Castel di Lucio (ME), on

  • 11-09-2024 20:20:30 (UTC)
  • 11-09-2024 22:20:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8720, 14.2540 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.

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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
Castel di Lucio ME 5 1294 1294
San Mauro Castelverde PA 7 1701 2995
Geraci Siculo PA 9 1945 4940
Gangi PA 9 6811 11751
Pettineo ME 11 1350 13101
Mistretta ME 12 4791 17892
Tusa ME 13 2925 20817
Motta d'Affermo ME 13 739 21556
Reitano ME 14 806 22362
Sperlinga EN 15 805 23167
Petralia Soprana PA 15 3360 26527
Petralia Sottana PA 16 2821 29348
Castelbuono PA 16 8943 38291
Pollina PA 17 2974 41265
Santo Stefano di Camastra ME 18 4694 45959
Nicosia EN 19 13899 59858
Bompietro PA 19 1401 61259
Capizzi ME 20 3176 64435

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NE of Caltanissetta (63360 inhabitants)
69 Km E of Bagheria (55387 inhabitants)
83 Km E of Palermo (674435 inhabitants)
84 Km NW of Catania (314555 inhabitants)
85 Km W of Acireale (52622 inhabitants)
86 Km NE of Agrigento (59770 inhabitants)
90 Km N of Gela (75827 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 1.1 2024-09-11
20:20:30		 37.8715 14.2542 6 2024-09-11
20:25:39		 Sala Sismica INGV-Roma 131367041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-09-11 20:20:30 ± 0.55
Latitude 37.8715 ± 0.0108
Longitude 14.2542 ± 0.0342
Depth (km) 6 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 131367041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2900
Semi-minor axis of confidence ellipse (meter) 1023
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 261
Circular confidence region, given by single value of horizontal uncertainty (meter) 2900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 272
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.87144
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 131367041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-09-11 20:25:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CLTB.HHZ. 2024-09-11T20:20:47.83 0.1 undecidable manual P 251 96.7254 50 0.02 88
IV.MSFR.HHZ. 2024-09-11T20:20:43.99 3.0 undecidable manual P 0
IV.RESU.HHZ. 2024-09-11T20:20:42.07 0.6 undecidable manual S 215 30.3474 101 0.49 45
IV.GIB.HHZ. 2024-09-11T20:20:39.70 0.3 undecidable manual S 303 23.9538 104 0.3 71
IV.CSLB.HHZ. 2024-09-11T20:20:37.14 0.3 undecidable manual S 293 18.6702 108 -0.52 69
IV.RESU.HHZ. 2024-09-11T20:20:36.52 0.1 undecidable manual P 215 30.3474 101 -0.52 89
IV.PETRA.HHZ. 2024-09-11T20:20:35.71 0.3 undecidable manual S 251 12.876 115 -0.09 76
IV.GIB.HHZ. 2024-09-11T20:20:35.85 0.1 undecidable manual P 303 23.9538 104 0.06 100
IV.PETRA.HHZ. 2024-09-11T20:20:34.08 0.1 negative manual P 251 12.876 115 0.38 96
IV.CSLB.HHZ. 2024-09-11T20:20:34.80 0.3 positive manual P 293 18.6702 108 0.02 76
MN.VAE.HHE. 2024-09-11T20:20:29.70 3.0 undecidable manual P 45.5211 -9.99 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHN. ML:1.1 0.0001112 0.2 AML other m 2024-09-11T20:20:37.22
IV.CSLB.HNN. ML:1.2 0.0001235 0.76 AML other m 2024-09-11T20:20:37.22
IV.CSLB.HNE. ML:1.0 0.0000833 0.48 AML other m 2024-09-11T20:20:38.50
IV.CSLB.HHE. ML:1.0 0.0000875 0.84 AML other m 2024-09-11T20:20:38.51
IV.RESU.HNN. ML:1.2 0.00007555000000000001 0.44 AML other m 2024-09-11T20:20:42.67
IV.RESU.HHN. ML:1.4 0.00011949999999999999 0.4 AML other m 2024-09-11T20:20:42.65
IV.RESU.HHE. ML:1.2 0.00007230000000000001 1.06 AML other m 2024-09-11T20:20:43.01
IV.RESU.HNE. ML:1.0 0.00005625 1.02 AML other m 2024-09-11T20:20:44.03
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