Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 06-01-2023 and time 09:35:30 (Italy) in region 3 km S Floresta (ME)

A magnitude ML 1.1 earthquake occured in region: 3 km S Floresta (ME), on

  • 06-01-2023 08:35:30 (UTC)
  • 06-01-2023 09:35:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9630, 14.9050 at 35 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.

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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
Floresta ME 3 485 485
Santa Domenica Vittoria ME 7 980 1465
Ucria ME 10 1058 2523
Roccella Valdemone ME 10 666 3189
Randazzo CT 10 10900 14089
Tortorici ME 10 6435 20524
Raccuja ME 11 1041 21565
San Piero Patti ME 11 2915 24480
Montalbano Elicona ME 12 2287 26767
Maniace CT 14 3765 30532
Malvagna ME 14 733 31265
Galati Mamertino ME 14 2627 33892
Sinagra ME 14 2705 36597
Moio Alcantara ME 15 717 37314
Longi ME 15 1473 38787
Maletto CT 15 3920 42707
Librizzi ME 16 1660 44367
Castell'Umberto ME 16 3128 47495
San Salvatore di Fitalia ME 16 1319 48814
Sant'Angelo di Brolo ME 17 3090 51904
Basicò ME 18 612 52516
Ficarra ME 18 1469 53985
Frazzanò ME 19 711 54696
Alcara li Fusi ME 19 1980 56676
Mirto ME 19 974 57650
Montagnareale ME 19 1615 59265
Tripi ME 20 873 60138

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of Acireale (52622 inhabitants)
54 Km N of Catania (314555 inhabitants)
63 Km W of Messina (238439 inhabitants)
67 Km W of Reggio di Calabria (183035 inhabitants)
91 Km NE of Caltanissetta (63360 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 1.1 2023-01-06
08:35:30		 37.9628 14.9047 35 2024-03-01
17:18:03		 Bollettino Sismico Italiano INGV 116342321
Reviewed
Rev100 		ML 1.1 2023-01-06
08:35:30		 37.9697 14.9062 33 2023-01-06
08:43:09		 Sala Sismica INGV-Roma 113343401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-06 08:35:30 ± 0.12
Latitude 37.9628 ± 0.0081
Longitude 14.9047 ± 0.0068
Depth (km) 35 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116342321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 870
Semi-minor axis of confidence ellipse (meter) 294
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 25
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) 76
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.08364
Epicentral distance of station farthest from the epicenter (degree) 0.85526
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 113343401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-06 08:43:09

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 13
Type of magnitude ML
Reference to an origin 116342321
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-13 14:16:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2023-01-06T08:35:46.60 0.6 negative manual P 210 94.9383 54 -0.19 42
IV.MSFR.HHZ. 2023-01-06T08:35:43.46 0.3 undecidable manual S 286 28.4493 137 -0.05 73
IV.AIO.HHZ. 2023-01-06T08:35:43.47 0.3 undecidable manual S 88 28.749 137 -0.09 73
IV.ECTS.HHZ. 2023-01-06T08:35:42.52 0.6 undecidable manual S 115 20.9679 146 0.26 48
IV.EPZF.HHZ. 2023-01-06T08:35:41.80 0.3 undecidable manual S 195 15.9729 153 0.21 73
IV.LIBRI.HHZ. 2023-01-06T08:35:41.56 0.6 undecidable manual S 9 13.5753 157 0.24 48
IV.EMSG.HHZ. 2023-01-06T08:35:41.60 0.6 undecidable manual S 166 16.2726 153 -0.02 50
IV.MUCR.HHZ. 2023-01-06T08:35:40.57 0.3 undecidable manual S 343 9.2796 164 -0.36 71
IV.AIO.HHZ. 2023-01-06T08:35:38.11 0.3 undecidable manual P 88 28.749 137 0.08 72
IV.EPMN.HHN. 2023-01-06T08:35:38.16 0.6 undecidable manual P 123 28.6491 137 0.14 48
IV.MSFR.HHZ. 2023-01-06T08:35:38.24 0.1 positive manual P 286 28.4493 137 0.24 94
IV.ECTS.HHZ. 2023-01-06T08:35:37.07 0.1 undecidable manual P 115 20.9679 146 -0.21 96
IV.NOV.HHZ. 2023-01-06T08:35:37.41 0.1 undecidable manual P 70 21.5673 145 0.08 98
IV.MUCR.HHZ. 2023-01-06T08:35:36.41 0.1 positive manual P 343 9.2796 164 -0.1 100
IV.EPZF.HHZ. 2023-01-06T08:35:36.68 1.0 negative manual P 195 15.9729 153 -0.21 24
IV.LIBRI.HHZ. 2023-01-06T08:35:36.85 0.6 positive manual P 9 13.5753 157 0.11 49
IV.EMSG.HHZ. 2023-01-06T08:35:36.86 0.3 positive manual P 166 16.2726 153 -0.05 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MUCR.HHN. ML:1.4 0.0001048 0.36 AML other m 2023-01-06T08:35:41.21
IV.MUCR.HHE. ML:1.0 0.00004735 0.38 AML other m 2023-01-06T08:35:41.88
IV.AIO.HHE. ML:1.0 0.000030100000000000003 0.5 AML other m 2023-01-06T08:35:44.58
IV.AIO.HHN. ML:0.7 0.0000168632945 0.8832 AML other m 2023-01-06T08:35:43.88
IV.EPZF.HHE. ML:1.8 0.00022053555 0.5184 AML other m 2023-01-06T08:35:42.06
IV.LIBRI.HHE. ML:0.6 0.0000132333855 0.5632 AML other m 2023-01-06T08:35:42.35
IV.LIBRI.HHN. ML:0.9 0.000029876225 0.4352 AML other m 2023-01-06T08:35:41.81
IV.LIBRI.HNN. ML:1.3 0.00007261947000000001 0.288 AML other m 2023-01-06T08:35:41.86
IV.LIBRI.HNE. ML:1.1 0.000050072725 0.2304 AML other m 2023-01-06T08:35:42.90
IV.EMSG.HHN. ML:2.0 0.00035919015 0.8 AML other m 2023-01-06T08:35:42.03
IV.EMSG.HHE. ML:1.8 0.0002164915 0.3968 AML other m 2023-01-06T08:35:43.06
IV.MSFR.HHN. ML:1.0 0.0000286946 0.4416 AML other m 2023-01-06T08:35:43.85
IV.MSFR.HHE. ML:0.8 0.000020646132999999996 0.1984 AML other m 2023-01-06T08:35:43.94
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