Earthquake with magnitude of ML 1.1 on date 19-12-2021 and time 02:38:36 (UTC) in region Ragalna (CT)

A magnitude ML 1.1 earthquake occured in region: Ragalna (CT), on

  • 19-12-2021 02:38:36 (UTC)
  • 19-12-2021 03:38:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6300, 14.9380 at 4 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
Ragalna CT 0 3924 3924
Santa Maria di Licodia CT 5 7641 11565
Belpasso CT 5 28108 39673
Biancavilla CT 6 24007 63680
PaternĂ² CT 7 48228 111908
Nicolosi CT 8 7463 119371
Camporotondo Etneo CT 9 5023 124394
Adrano CT 10 36122 160516
San Pietro Clarenza CT 10 7743 168259
Pedara CT 11 14102 182361
Mascalucia CT 12 31958 214319
Trecastagni CT 13 10910 225229
Tremestieri Etneo CT 13 20589 245818
Motta Sant'Anastasia CT 13 12116 257934
Gravina di Catania CT 13 25838 283772
Misterbianco CT 14 49410 333182
Viagrande CT 14 8563 341745
Sant'Agata li Battiati CT 15 9479 351224
San Giovanni la Punta CT 15 23060 374284
Aci Bonaccorsi CT 16 3524 377808
Zafferana Etnea CT 16 9517 387325
San Gregorio di Catania CT 17 11966 399291
Aci Sant'Antonio CT 17 17984 417275
Centuripe EN 17 5470 422745
Valverde CT 17 7840 430585
Aci Catena CT 18 29851 460436
Santa Venerina CT 19 8592 469028
Milo CT 19 1087 470115
Catania CT 19 314555 784670
Bronte CT 20 19172 803842

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of Catania (314555 inhabitants)
20 Km W of Acireale (52622 inhabitants)
71 Km NW of Siracusa (122291 inhabitants)
79 Km E of Caltanissetta (63360 inhabitants)
80 Km N of Ragusa (73313 inhabitants)
82 Km SW of Reggio di Calabria (183035 inhabitants)
83 Km SW of Messina (238439 inhabitants)
84 Km NE of Vittoria (63339 inhabitants)
87 Km N of Modica (54633 inhabitants)
87 Km NE of Gela (75827 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 1.1 2021-12-19
02:38:36
37.63 14.938 4 2021-12-19
03:36:59
Sala Operativa INGV_OE (Catania) 98710361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-19 02:38:36
Latitude 37.6300
Longitude 14.9380
Depth (km) 4 (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 98710361

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) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
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) 0.07
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:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 98710361
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-12-19 03:36:59
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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