Earthquake with magnitude of ML 1.6 on date 24-01-2021 and time 04:12:34 (UTC) in region 1 km SE Sant'Alfio (CT)

A magnitude ML 1.6 earthquake occured in region: 1 km SE Sant'Alfio (CT), on

  • 24-01-2021 04:12:34 (UTC)
  • 24-01-2021 05:12:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7380, 15.1500 at 16 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 1 1582 1582
Giarre CT 3 27659 29241
Milo CT 3 1087 30328
Mascali CT 5 14282 44610
Riposto CT 5 14838 59448
Santa Venerina CT 6 8592 68040
Zafferana Etnea CT 6 9517 77557
Fiumefreddo di Sicilia CT 8 9623 87180
Piedimonte Etneo CT 8 3963 91143
Linguaglossa CT 12 5403 96546
Calatabiano CT 12 5308 101854
Acireale CT 14 52622 154476
Aci Sant'Antonio CT 15 17984 172460
Trecastagni CT 15 10910 183370
Viagrande CT 15 8563 191933
Aci Catena CT 15 29851 221784
Gaggi ME 15 3184 224968
Pedara CT 15 14102 239070
Aci Bonaccorsi CT 16 3524 242594
Giardini-Naxos ME 16 9415 252009
Castiglione di Sicilia CT 16 3215 255224
Taormina ME 17 10960 266184
Nicolosi CT 17 7463 273647
Castelmola ME 18 1088 274735
Valverde CT 18 7840 282575
Motta Camastra ME 18 845 283420
Francavilla di Sicilia ME 18 3945 287365
San Giovanni la Punta CT 18 23060 310425
Graniti ME 19 1492 311917
Tremestieri Etneo CT 19 20589 332506
San Gregorio di Catania CT 20 11966 344472
Moio Alcantara ME 20 717 345189

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km N of Acireale (52622 inhabitants)
27 Km N of Catania (314555 inhabitants)
60 Km SW of Reggio di Calabria (183035 inhabitants)
62 Km SW of Messina (238439 inhabitants)
76 Km N of Siracusa (122291 inhabitants)
98 Km NE of Ragusa (73313 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 1.6 2021-01-24
04:12:34
37.738 15.15 16 2021-05-04
10:41:44
Sala Operativa INGV_OE (Catania) 86515951
Reviewed
Rev200
ML 1.6 2021-01-24
04:12:35
37.744 15.163 15 2021-01-24
04:28:19
Sala Operativa INGV_OE (Catania) 86515751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-24 04:12:34
Latitude 37.7380
Longitude 15.1500
Depth (km) 16 (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 86515951

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) 1700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
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) 0.09
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:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 86515751
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-01-24 04:28:19

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 86515951
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-01-24 04:35:50
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