Earthquake with magnitude of ML 1.8 on date 11-12-2022 and time 23:10:23 (UTC) in region 3 km SW San Mauro Castelverde (PA)

A magnitude ML 1.8 earthquake occured in region: 3 km SW San Mauro Castelverde (PA), on

  • 11-12-2022 23:10:23 (UTC)
  • 12-12-2022 00:10:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8920, 14.1790 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 3 1701 1701
Geraci Siculo PA 4 1945 3646
Castelbuono PA 9 8943 12589
Gangi PA 11 6811 19400
Castel di Lucio ME 12 1294 20694
Tusa ME 12 2925 23619
Pollina PA 12 2974 26593
Petralia Sottana PA 12 2821 29414
Petralia Soprana PA 12 3360 32774
Pettineo ME 13 1350 34124
Motta d'Affermo ME 15 739 34863
Isnello PA 16 1589 36452
Mistretta ME 17 4791 41243
Castellana Sicula PA 17 3411 44654
Reitano ME 17 806 45460
Bompietro PA 17 1401 46861
Blufi PA 18 1029 47890
Polizzi Generosa PA 18 3407 51297
Gratteri PA 20 963 52260

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km N of Caltanissetta (63360 inhabitants)
62 Km E of Bagheria (55387 inhabitants)
76 Km E of Palermo (674435 inhabitants)
83 Km NE of Agrigento (59770 inhabitants)
91 Km NW of Catania (314555 inhabitants)
92 Km N of Gela (75827 inhabitants)
92 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
Bulletin
Rev1000
ML 1.8 2022-12-11
23:10:23
37.8917 14.179 11 2024-03-01
15:28:15
Bollettino Sismico Italiano INGV 113516841
Reviewed
Rev100
ML 1.6 2022-12-11
23:10:23
37.9465 14.17 19 2022-12-11
23:18:24
Sala Sismica INGV-Roma 112743791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-11 23:10:23 ± 0.18
Latitude 37.8917 ± 0.0189
Longitude 14.1790 ± 0.0148
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 113516841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2075
Semi-minor axis of confidence ellipse (meter) 1214
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 336
Circular confidence region, given by single value of horizontal uncertainty (meter) 2070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.10432
Epicentral distance of station farthest from the epicenter (degree) 0.83457
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 113516841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-01-13 14:15:18

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 112743791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-11 23:18:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AIO.HHE. 2022-12-11T23:10:40.14 0.6 undecidable manual P 84 92.6406 50 0.67 49
IV.HLNI.HHE. 2022-12-11T23:10:38.76 0.6 undecidable manual P 134 85.6476 50 0.36 55
IV.GALF.HHZ. 2022-12-11T23:10:37.39 0.6 undecidable manual S 120 39.4272 50 0.58 56
IV.MSFR.HHE. 2022-12-11T23:10:36.96 0.6 undecidable manual S 66 39.3273 50 0.17 62
IV.LIBRI.HHN. 2022-12-11T23:10:35.50 0.6 undecidable manual P 72 68.8755 50 -0.31 57
IV.MUCR.HHE. 2022-12-11T23:10:34.37 0.3 undecidable manual P 74 63.0924 50 -0.54 82
IV.CIMI.HNE. 2022-12-11T23:10:33.49 0.6 undecidable manual P 269 53.1024 50 0.12 61
IV.GALF.HHZ. 2022-12-11T23:10:31.20 0.6 undecidable manual P 120 39.4272 50 -0.07 63
IV.GIB.HHZ. 2022-12-11T23:10:31.33 0.6 undecidable manual S 309 17.2716 121 0.59 58
IV.ALJA.HHE. 2022-12-11T23:10:31.55 0.3 undecidable manual P 247 40.5261 50 0.11 94
IV.MSFR.HHE. 2022-12-11T23:10:30.46 0.6 undecidable manual P 66 39.3273 50 -0.8 51
IV.PLLN.EHZ. 2022-12-11T23:10:30.04 0.6 undecidable manual S 344 11.5773 132 0.87 52
IV.CSLB.HHZ. 2022-12-11T23:10:29.02 0.6 undecidable manual S 296 11.7771 132 -0.18 65
IV.GIB.HHZ. 2022-12-11T23:10:27.53 0.6 undecidable manual P 309 17.2716 121 -0.24 64
IV.CSLB.HHZ. 2022-12-11T23:10:26.29 0.3 undecidable manual P 296 11.7771 132 -0.59 88
IV.PLLN.EHZ. 2022-12-11T23:10:26.80 0.3 undecidable manual P 344 11.5773 132 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLLN.EHN. ML:1.8 0.0007185 0.46 AML other m 2022-12-11T23:10:32.31
IV.PLLN.EHE. ML:1.7 0.0005955 0.46 AML other m 2022-12-11T23:10:32.35
IV.GALF.HHE. ML:1.8 0.00023277085 0.4608 AML other m 2022-12-11T23:10:41.36
IV.GALF.HHN. ML:1.8 0.00023775950000000002 0.6272 AML other m 2022-12-11T23:10:41.89
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