Earthquake with magnitude of ML 1.2 on date 01-09-2023 and time 11:31:21 (Italy) in region 4 km SE Maletto (CT)

A magnitude ML 1.2 earthquake occured in region: 4 km SE Maletto (CT), on

  • 01-09-2023 09:31:21 (UTC)
  • 01-09-2023 11:31:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8020, 14.8960 at 18 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
Maletto CT 4 3920 3920
Bronte CT 6 19172 23092
Randazzo CT 10 10900 33992
Maniace CT 10 3765 37757
Santa Domenica Vittoria ME 14 980 38737
Adrano CT 16 36122 74859
CesarĂ² ME 17 2439 77298
Moio Alcantara ME 17 717 78015
Roccella Valdemone ME 18 666 78681
Biancavilla CT 18 24007 102688
San Teodoro ME 18 1403 104091
Malvagna ME 19 733 104824
Ragalna CT 19 3924 108748

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of Acireale (52622 inhabitants)
37 Km NW of Catania (314555 inhabitants)
73 Km SW of Messina (238439 inhabitants)
74 Km W of Reggio di Calabria (183035 inhabitants)
81 Km E of Caltanissetta (63360 inhabitants)
90 Km NW of Siracusa (122291 inhabitants)
99 Km N of Ragusa (73313 inhabitants)
100 Km NE of Gela (75827 inhabitants)
100 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 1.2 2023-09-01
09:31:21
37.802 14.896 18 2023-09-01
14:42:33
Sala Operativa INGV_OE (Catania) 120661361
Reviewed
Rev200
ML 1.2 2023-09-01
09:31:21
37.802 14.896 18 2023-09-01
09:44:33
Sala Operativa INGV_OE (Catania) 120655751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-01 09:31:21
Latitude 37.8020
Longitude 14.8960
Depth (km) 18 (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 120661361

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) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
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) 0.18
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
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 120661361
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2023-09-01 14:42:33

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 120655751
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2023-09-01 09:44:33
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