Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 06-01-2023 and time 09:35:55 (Italy) in region 4 km S Floresta (ME)

A magnitude ML 1.0 earthquake occured in region: 4 km S Floresta (ME), on

  • 06-01-2023 08:35:55 (UTC)
  • 06-01-2023 09:35:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9560, 14.9050 at 32 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 4 485 485
Santa Domenica Vittoria ME 7 980 1465
Randazzo CT 9 10900 12365
Roccella Valdemone ME 10 666 13031
Ucria ME 10 1058 14089
Tortorici ME 11 6435 20524
Raccuja ME 11 1041 21565
San Piero Patti ME 12 2915 24480
Montalbano Elicona ME 12 2287 26767
Maniace CT 13 3765 30532
Malvagna ME 14 733 31265
Moio Alcantara ME 14 717 31982
Maletto CT 14 3920 35902
Galati Mamertino ME 15 2627 38529
Sinagra ME 15 2705 41234
Longi ME 16 1473 42707
Librizzi ME 17 1660 44367
Castell'Umberto ME 17 3128 47495
San Salvatore di Fitalia ME 17 1319 48814
Sant'Angelo di Brolo ME 18 3090 51904
Basicò ME 18 612 52516
Ficarra ME 19 1469 53985
Frazzanò ME 19 711 54696
Alcara li Fusi ME 19 1980 56676
Mirto ME 20 974 57650
Bronte CT 20 19172 76822
Montagnareale ME 20 1615 78437

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of Acireale (52622 inhabitants)
53 Km N of Catania (314555 inhabitants)
63 Km W of Messina (238439 inhabitants)
67 Km W of Reggio di Calabria (183035 inhabitants)
90 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 1.0 2023-01-06
08:35:55		 37.9563 14.9047 32 2024-03-01
17:18:07		 Bollettino Sismico Italiano INGV 117218861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-06 08:35:55 ± 0.18
Latitude 37.9563 ± 0.0081
Longitude 14.9047 ± 0.0068
Depth (km) 32 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117218861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 698
Semi-minor axis of confidence ellipse (meter) 596
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 205
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
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) 0.08993
Epicentral distance of station farthest from the epicenter (degree) 0.25900
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.5
Num. used stations 6
Type of magnitude ML
Reference to an origin 117218861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-10 14:25:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AIO.HHE. 2023-01-06T08:36:08.19 0.6 undecidable manual S 87 28.749 134 0.19 48
IV.MSFR.HHZ. 2023-01-06T08:36:07.99 0.6 undecidable manual S 288 28.6491 134 0 49
IV.NOV.HHZ. 2023-01-06T08:36:06.64 0.6 undecidable manual S 69 21.7671 143 -0.12 49
IV.EPZF.HHZ. 2023-01-06T08:36:06.11 0.6 undecidable manual S 196 15.2736 152 0.28 48
IV.LIBRI.HHN. 2023-01-06T08:36:05.90 0.6 undecidable manual S 8 14.2746 154 0.19 49
IV.MUCR.HHZ. 2023-01-06T08:36:04.93 0.6 undecidable manual S 344 9.9789 161 -0.34 47
IV.MSFR.HHZ. 2023-01-06T08:36:02.87 0.3 undecidable manual P 288 28.6491 134 0.2 71
IV.AIO.HHE. 2023-01-06T08:36:02.54 0.3 undecidable manual P 87 28.749 134 -0.14 73
IV.NOV.HHZ. 2023-01-06T08:36:02.06 0.3 undecidable manual P 69 21.7671 143 0.1 73
IV.EPZF.HHZ. 2023-01-06T08:36:01.27 0.1 undecidable manual P 196 15.2736 152 -0.15 98
IV.EMSG.HHZ. 2023-01-06T08:36:01.42 0.3 undecidable manual P 165 15.5733 152 -0.02 76
IV.LIBRI.HHN. 2023-01-06T08:36:01.42 0.1 undecidable manual P 8 14.2746 154 0.07 100
IV.MUCR.HHZ. 2023-01-06T08:36:00.98 0.1 undecidable manual P 344 9.9789 161 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MUCR.HHE. ML:0.8 0.00003079038 0.3584 AML other m 2023-01-06T08:36:06.12
IV.MUCR.HHN. ML:1.1 0.00006029165 0.2432 AML other m 2023-01-06T08:36:06.43
IV.EPZF.HHN. ML:1.7 0.00020412534999999997 0.3584 AML other m 2023-01-06T08:36:07.26
IV.EPZF.HHE. ML:1.7 0.00022745465 0.4224 AML other m 2023-01-06T08:36:06.48
IV.MSFR.HHN. ML:0.5 0.00001107006 1.0176 AML other m 2023-01-06T08:36:08.55
IV.MSFR.HHE. ML:0.7 0.000014797022 0.7616 AML other m 2023-01-06T08:36:08.69
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