Earthquake with magnitude of ML 1.7 on date 16-01-2021 and time 09:02:17 (Italy) in region 4 km W Zafferana Etnea (CT)

A magnitude ML 1.7 earthquake occured in region: 4 km W Zafferana Etnea (CT), on

  • 16-01-2021 08:02:17 (UTC)
  • 16-01-2021 09:02:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.69, 15.06 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
Zafferana Etnea CT 4 9517 9517
Milo CT 7 1087 10604
Santa Venerina CT 7 8592 19196
Pedara CT 8 14102 33298
Trecastagni CT 8 10910 44208
Nicolosi CT 9 7463 51671
Viagrande CT 10 8563 60234
Sant'Alfio CT 10 1582 61816
Aci Sant'Antonio CT 11 17984 79800
Aci Bonaccorsi CT 11 3524 83324
Ragalna CT 12 3924 87248
Giarre CT 12 27659 114907
Aci Catena CT 12 29851 144758
Tremestieri Etneo CT 13 20589 165347
Belpasso CT 13 28108 193455
San Giovanni la Punta CT 13 23060 216515
Mascalucia CT 13 31958 248473
Acireale CT 13 52622 301095
San Pietro Clarenza CT 13 7743 308838
Valverde CT 14 7840 316678
Riposto CT 14 14838 331516
Camporotondo Etneo CT 14 5023 336539
Gravina di Catania CT 14 25838 362377
Mascali CT 15 14282 376659
San Gregorio di Catania CT 15 11966 388625
Sant'Agata li Battiati CT 15 9479 398104
Santa Maria di Licodia CT 17 7641 405745
Aci Castello CT 17 18723 424468
Piedimonte Etneo CT 17 3963 428431
Biancavilla CT 17 24007 452438
Fiumefreddo di Sicilia CT 18 9623 462061
PaternĂ² CT 18 48228 510289
Linguaglossa CT 19 5403 515692
Misterbianco CT 19 49410 565102
Adrano CT 20 36122 601224

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NW of Acireale (52622 inhabitants)
21 Km N of Catania (314555 inhabitants)
70 Km SW of Reggio di Calabria (183035 inhabitants)
71 Km SW of Messina (238439 inhabitants)
73 Km N of Siracusa (122291 inhabitants)
90 Km NE of Ragusa (73313 inhabitants)
90 Km E of Caltanissetta (63360 inhabitants)
94 Km NE of Vittoria (63339 inhabitants)
96 Km N of Modica (54633 inhabitants)
99 Km NE of Gela (75827 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 1.7 2021-01-16
08:02:17
37.69 15.06 16 2021-01-16
08:32:29
Sala Operativa INGV_OE (Catania) 86296081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-16 08:02:17
Latitude 37.69
Longitude 15.06
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 86296081

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) 1000
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
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) 0.25
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:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 86296081
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-01-16 08:32:29
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