Earthquake with magnitude of ML 1.0 on date 29-12-2023 and time 09:50:33 (UTC) in region 1 km W San Mauro Castelverde (PA)

A magnitude ML 1.0 earthquake occured in region: 1 km W San Mauro Castelverde (PA), on

  • 29-12-2023 09:50:33 (UTC)
  • 29-12-2023 10:50:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9150, 14.1830 at 8 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
San Mauro Castelverde PA 1 1701 1701
Geraci Siculo PA 7 1945 3646
Castelbuono PA 9 8943 12589
Tusa ME 9 2925 15514
Pollina PA 9 2974 18488
Pettineo ME 11 1350 19838
Castel di Lucio ME 12 1294 21132
Motta d'Affermo ME 13 739 21871
Gangi PA 13 6811 28682
Petralia Sottana PA 14 2821 31503
Petralia Soprana PA 15 3360 34863
Reitano ME 16 806 35669
Isnello PA 16 1589 37258
Mistretta ME 16 4791 42049
Santo Stefano di Camastra ME 19 4694 46743
Castellana Sicula PA 19 3411 50154
Gratteri PA 19 963 51117
Polizzi Generosa PA 20 3407 54524
Cefalù PA 20 14393 68917
Bompietro PA 20 1401 70318

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km N of Caltanissetta (63360 inhabitants)
62 Km E of Bagheria (55387 inhabitants)
75 Km E of Palermo (674435 inhabitants)
85 Km NE of Agrigento (59770 inhabitants)
92 Km NW of Catania (314555 inhabitants)
93 Km W of Acireale (52622 inhabitants)
95 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 1.0 2023-12-29
09:50:33
37.9153 14.1828 8 2023-12-29
10:03:50
Sala Sismica INGV-Roma 124337951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-29 09:50:33 ± 0.09
Latitude 37.9153 ± 0.0063
Longitude 14.1828 ± 0.0034
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124337951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 677
Semi-minor axis of confidence ellipse (meter) 327
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 357
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 305
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.05
Epicentral distance of station closest to the epicenter (degree) 0.08364
Epicentral distance of station farthest from the epicenter (degree) 0.14479
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 124337951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-29 10:03:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIB.HHZ. 2023-12-29T09:50:39.35 0.3 undecidable manual S 301 16.0728 117 0.02 74
IV.PLLN.EHZ. 2023-12-29T09:50:37.34 0.3 undecidable manual S 338 9.2796 131 -0.02 75
IV.GIB.HHZ. 2023-12-29T09:50:36.67 0.1 undecidable manual P 301 16.0728 117 -0.03 99
IV.PLLN.EHZ. 2023-12-29T09:50:35.59 0.1 undecidable manual P 338 9.2796 131 0.03 100
IV.CSLB.HHZ. 2023-12-29T09:50:35.87 0.3 negative manual P 283 11.1777 126 0 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLLN.EHN. ML:1.6 0.0005974999999999999 0.88 AML other m 2023-12-29T09:50:37.25
IV.PLLN.EHE. ML:1.7 0.000794 1.14 AML other m 2023-12-29T09:50:37.28
IV.CSLB.HHE. ML:0.8 0.0000805 1.64 AML other m 2023-12-29T09:50:38.00
IV.CSLB.HHN. ML:0.9 0.00011360000000000001 1.1 AML other m 2023-12-29T09:50:39.42
IV.GIB.HHN. ML:0.8 0.00006274898500000001 2.24 AML other m 2023-12-29T09:50:40.74
IV.GIB.HHE. ML:1.0 0.00009445997 0.9984 AML other m 2023-12-29T09:50:40.40
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