Earthquake with magnitude of ML 1.0 on date 17-10-2023 and time 17:51:28 (Italy) in region 4 km SW Castiglione di Sicilia (CT)

A magnitude ML 1.0 earthquake occured in region: 4 km SW Castiglione di Sicilia (CT), on

  • 17-10-2023 15:51:28 (UTC)
  • 17-10-2023 17:51:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8560, 15.0980 at 3 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
Castiglione di Sicilia CT 4 3215 3215
Linguaglossa CT 4 5403 8618
Francavilla di Sicilia ME 6 3945 12563
Moio Alcantara ME 6 717 13280
Malvagna ME 8 733 14013
Motta Camastra ME 8 845 14858
Piedimonte Etneo CT 9 3963 18821
Gaggi ME 11 3184 22005
Roccella Valdemone ME 12 666 22671
Fiumefreddo di Sicilia CT 12 9623 32294
Calatabiano CT 12 5308 37602
Graniti ME 12 1492 39094
Sant'Alfio CT 13 1582 40676
Randazzo CT 14 10900 51576
Santa Domenica Vittoria ME 14 980 52556
Mascali CT 14 14282 66838
Milo CT 15 1087 67925
Castelmola ME 16 1088 69013
Giardini-Naxos ME 16 9415 78428
Giarre CT 16 27659 106087
Fondachelli-Fantina ME 16 1019 107106
Taormina ME 16 10960 118066
Mongiuffi Melia ME 17 600 118666
Riposto CT 17 14838 133504
Roccafiorita ME 17 197 133701
Zafferana Etnea CT 18 9517 143218
Gallodoro ME 18 367 143585
Limina ME 18 836 144421
Novara di Sicilia ME 18 1337 145758
Letojanni ME 19 2861 148619
Antillo ME 19 919 149538
Santa Venerina CT 19 8592 158130

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km N of Acireale (52622 inhabitants)
39 Km N of Catania (314555 inhabitants)
55 Km SW of Messina (238439 inhabitants)
56 Km SW of Reggio di Calabria (183035 inhabitants)
90 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 1.0 2023-10-17
15:51:28
37.856 15.098 3 2023-10-17
16:22:37
Sala Operativa INGV_OE (Catania) 122157111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-17 15:51:28
Latitude 37.8560
Longitude 15.0980
Depth (km) 3 (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 122157111

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) 600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
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) 0.11
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:1.0

Field Value
Value 1.0
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 122157111
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2023-10-17 16:22:37
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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