Earthquake with magnitude of ML 1.1 on date 15-12-2023 and time 07:22:49 (Italy) in region 3 km N Sant'Alfio (CT)

A magnitude ML 1.1 earthquake occured in region: 3 km N Sant'Alfio (CT), on

  • 15-12-2023 06:22:49 (UTC)
  • 15-12-2023 07:22:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7720, 15.1380 at 6 km depth.

The earthquake was located by: Sala Operativa INGV_OE (Catania).

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
Sant'Alfio CT 3 1582 1582
Mascali CT 5 14282 15864
Piedimonte Etneo CT 5 3963 19827
Milo CT 6 1087 20914
Giarre CT 6 27659 48573
Fiumefreddo di Sicilia CT 7 9623 58196
Riposto CT 7 14838 73034
Linguaglossa CT 8 5403 78437
Zafferana Etnea CT 9 9517 87954
Santa Venerina CT 9 8592 96546
Calatabiano CT 10 5308 101854
Gaggi ME 12 3184 105038
Castiglione di Sicilia CT 13 3215 108253
Motta Camastra ME 14 845 109098
Francavilla di Sicilia ME 15 3945 113043
Giardini-Naxos ME 15 9415 122458
Graniti ME 16 1492 123950
Taormina ME 16 10960 134910
Castelmola ME 16 1088 135998
Moio Alcantara ME 16 717 136715
Acireale CT 18 52622 189337
Trecastagni CT 18 10910 200247
Malvagna ME 18 733 200980
Viagrande CT 18 8563 209543
Aci Sant'Antonio CT 18 17984 227527
Pedara CT 18 14102 241629
Aci Catena CT 19 29851 271480
Mongiuffi Melia ME 19 600 272080
Letojanni ME 19 2861 274941
Aci Bonaccorsi CT 19 3524 278465
Nicolosi CT 20 7463 285928
Gallodoro ME 20 367 286295

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km N of Acireale (52622 inhabitants)
30 Km N of Catania (314555 inhabitants)
58 Km SW of Reggio di Calabria (183035 inhabitants)
60 Km SW of Messina (238439 inhabitants)
80 Km N of Siracusa (122291 inhabitants)
100 Km E 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
Reviewed
Rev200
ML 1.1 2023-12-15
06:22:49
37.772 15.138 6 2023-12-15
06:25:48
Sala Operativa INGV_OE (Catania) 124031141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-15 06:22:49
Latitude 37.7720
Longitude 15.1380
Depth (km) 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-CT#SeismPicker_SO-OE
Event type earthquake
Origin ID 124031141

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 1
Number of defining phases 1
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree)
Epicentral distance of station farthest from the epicenter (degree)
Number of stations at which the event was observed 0
Number of stations from which data was used for origin computation 0
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 124031141
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2023-12-15 06:25:48
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download