Earthquake with magnitude of ML 1.4 on date 03-02-2021 and time 02:33:52 (Italy) in region 6 km NE Biancavilla (CT)

A magnitude ML 1.4 earthquake occured in region: 6 km NE Biancavilla (CT), on

  • 03-02-2021 01:33:52 (UTC)
  • 03-02-2021 02:33:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.687, 14.915 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
Biancavilla CT 6 24007 24007
Ragalna CT 7 3924 27931
Adrano CT 8 36122 64053
Santa Maria di Licodia CT 8 7641 71694
Belpasso CT 12 28108 99802
PaternĂ² CT 12 48228 148030
Nicolosi CT 13 7463 155493
Bronte CT 13 19172 174665
Pedara CT 15 14102 188767
Camporotondo Etneo CT 15 5023 193790
San Pietro Clarenza CT 16 7743 201533
Trecastagni CT 16 10910 212443
Maletto CT 17 3920 216363
Zafferana Etnea CT 17 9517 225880
Centuripe EN 17 5470 231350
Mascalucia CT 18 31958 263308
Viagrande CT 18 8563 271871
Milo CT 18 1087 272958
Tremestieri Etneo CT 19 20589 293547
Gravina di Catania CT 19 25838 319385
Aci Bonaccorsi CT 20 3524 322909
Santa Venerina CT 20 8592 331501
San Giovanni la Punta CT 20 23060 354561
Motta Sant'Anastasia CT 20 12116 366677

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km W of Acireale (52622 inhabitants)
25 Km NW of Catania (314555 inhabitants)
77 Km NW of Siracusa (122291 inhabitants)
78 Km E of Caltanissetta (63360 inhabitants)
79 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km SW of Messina (238439 inhabitants)
86 Km N of Ragusa (73313 inhabitants)
89 Km NE of Vittoria (63339 inhabitants)
91 Km NE of Gela (75827 inhabitants)
93 Km N of Modica (54633 inhabitants)
Recent and historical seismicity
Seismic hazard
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire ( that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
ML 1.4 2021-02-03
37.687 14.915 0 2021-02-03
Sala Operativa INGV_OE (Catania) 86796221
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2021-02-03 01:33:52
Latitude 37.6870
Longitude 14.9150
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 86796221


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
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
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) 0.1
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


Field Value
Value 1.4
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 86796221
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-02-03 01:41:15
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download