Earthquake with magnitude of ML 1.6 on date 18-05-2023 and time 01:32:45 (UTC) in region 4 km N Acireale (CT)

A magnitude ML 1.6 earthquake occured in region: 4 km N Acireale (CT), on

  • 18-05-2023 01:32:45 (UTC)
  • 18-05-2023 03:32:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6490, 15.1810 at 0 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
Acireale CT 4 52622 52622
Santa Venerina CT 6 8592 61214
Aci Catena CT 6 29851 91065
Aci Sant'Antonio CT 7 17984 109049
Aci Bonaccorsi CT 8 3524 112573
Zafferana Etnea CT 9 9517 122090
Viagrande CT 9 8563 130653
Giarre CT 9 27659 158312
Valverde CT 9 7840 166152
Trecastagni CT 10 10910 177062
Riposto CT 10 14838 191900
Milo CT 10 1087 192987
Aci Castello CT 11 18723 211710
San Giovanni la Punta CT 11 23060 234770
Pedara CT 11 14102 248872
San Gregorio di Catania CT 11 11966 260838
Sant'Alfio CT 11 1582 262420
Mascali CT 12 14282 276702
Tremestieri Etneo CT 12 20589 297291
Sant'Agata li Battiati CT 13 9479 306770
Mascalucia CT 14 31958 338728
Nicolosi CT 14 7463 346191
Gravina di Catania CT 14 25838 372029
San Pietro Clarenza CT 16 7743 379772
Fiumefreddo di Sicilia CT 16 9623 389395
Piedimonte Etneo CT 18 3963 393358
Camporotondo Etneo CT 18 5023 398381
Catania CT 18 314555 712936
Belpasso CT 19 28108 741044
Calatabiano CT 20 5308 746352

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km N of Acireale (52622 inhabitants)
18 Km NE of Catania (314555 inhabitants)
66 Km SW of Reggio di Calabria (183035 inhabitants)
66 Km N of Siracusa (122291 inhabitants)
69 Km SW of Messina (238439 inhabitants)
90 Km NE of Ragusa (73313 inhabitants)
95 Km NE of Modica (54633 inhabitants)
96 Km NE of Vittoria (63339 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 1.6 2023-05-18
01:32:45
37.649 15.181 0 2023-05-18
02:57:15
Sala Operativa INGV_OE (Catania) 117438811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-18 01:32:45
Latitude 37.6490
Longitude 15.1810
Depth (km) 0 (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 117438811

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) 1500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 239
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) 0.13
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:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 117438811
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2023-05-18 02:57:15
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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