Earthquake with magnitude of ML 1.4 on date 11-02-2021 and time 23:31:33 (UTC) in region 12 km W Zafferana Etnea (CT)

A magnitude ML 1.4 earthquake occured in region: 12 km W Zafferana Etnea (CT), on

  • 11-02-2021 23:31:33 (UTC)
  • 12-02-2021 00:31:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.74, 14.98 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
Zafferana Etnea CT 12 9517 9517
Milo CT 12 1087 10604
Ragalna CT 13 3924 14528
Maletto CT 14 3920 18448
Bronte CT 14 19172 37620
Sant'Alfio CT 14 1582 39202
Nicolosi CT 15 7463 46665
Biancavilla CT 15 24007 70672
Santa Venerina CT 15 8592 79264
Randazzo CT 15 10900 90164
Pedara CT 16 14102 104266
Adrano CT 16 36122 140388
Santa Maria di Licodia CT 16 7641 148029
Trecastagni CT 16 10910 158939
Belpasso CT 17 28108 187047
Viagrande CT 18 8563 195610
Giarre CT 18 27659 223269
Linguaglossa CT 18 5403 228672
Moio Alcantara ME 19 717 229389
Piedimonte Etneo CT 19 3963 233352
Mascali CT 19 14282 247634
San Pietro Clarenza CT 19 7743 255377
Santa Domenica Vittoria ME 19 980 256357
Aci Bonaccorsi CT 20 3524 259881
Camporotondo Etneo CT 20 5023 264904
Riposto CT 20 14838 279742
PaternĂ² CT 20 48228 327970
Aci Sant'Antonio CT 20 17984 345954
Mascalucia CT 20 31958 377912
Castiglione di Sicilia CT 20 3215 381127

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Acireale (52622 inhabitants)
28 Km NW of Catania (314555 inhabitants)
71 Km SW of Reggio di Calabria (183035 inhabitants)
71 Km SW of Messina (238439 inhabitants)
81 Km NW of Siracusa (122291 inhabitants)
86 Km E of Caltanissetta (63360 inhabitants)
94 Km N of Ragusa (73313 inhabitants)
97 Km NE of Vittoria (63339 inhabitants)
99 Km NE of Gela (75827 inhabitants)
100 Km N of Modica (54633 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 (http://www.haisentitoilterremoto.it/) 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
Reviewed
Rev200
ML 1.4 2021-02-11
23:31:33
37.74 14.98 1 2021-02-12
00:01:19
Sala Operativa INGV_OE (Catania) 87063481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-11 23:31:33
Latitude 37.74
Longitude 14.98
Depth (km) 1 (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 87063481

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) 200
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
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:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 87063481
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-02-12 00:01:19
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download