Earthquake with magnitude of ML 1.7 on date 31-01-2021 and time 19:29:09 (Italy) in region 10 km W Zafferana Etnea (CT)

A magnitude ML 1.7 earthquake occured in region: 10 km W Zafferana Etnea (CT), on

  • 31-01-2021 18:29:09 (UTC)
  • 31-01-2021 19:29:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7250, 14.9980 at 3 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 10 9517 9517
Milo CT 10 1087 10604
Ragalna CT 12 3924 14528
Nicolosi CT 13 7463 21991
Santa Venerina CT 13 8592 30583
Sant'Alfio CT 13 1582 32165
Pedara CT 13 14102 46267
Trecastagni CT 14 10910 57177
Biancavilla CT 15 24007 81184
Belpasso CT 15 28108 109292
Viagrande CT 15 8563 117855
Santa Maria di Licodia CT 15 7641 125496
Adrano CT 16 36122 161618
Bronte CT 16 19172 180790
Maletto CT 16 3920 184710
Giarre CT 17 27659 212369
San Pietro Clarenza CT 17 7743 220112
Aci Bonaccorsi CT 17 3524 223636
Aci Sant'Antonio CT 17 17984 241620
Camporotondo Etneo CT 17 5023 246643
Mascalucia CT 18 31958 278601
Randazzo CT 18 10900 289501
Tremestieri Etneo CT 18 20589 310090
Mascali CT 18 14282 324372
Riposto CT 18 14838 339210
Linguaglossa CT 18 5403 344613
PaternĂ² CT 18 48228 392841
Piedimonte Etneo CT 18 3963 396804
San Giovanni la Punta CT 18 23060 419864
Aci Catena CT 19 29851 449715
Gravina di Catania CT 19 25838 475553
Acireale CT 19 52622 528175
Valverde CT 20 7840 536015
Sant'Agata li Battiati CT 20 9479 545494
Moio Alcantara ME 20 717 546211

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of Acireale (52622 inhabitants)
26 Km N of Catania (314555 inhabitants)
71 Km SW of Reggio di Calabria (183035 inhabitants)
72 Km SW of Messina (238439 inhabitants)
78 Km NW of Siracusa (122291 inhabitants)
86 Km E of Caltanissetta (63360 inhabitants)
92 Km N of Ragusa (73313 inhabitants)
95 Km NE of Vittoria (63339 inhabitants)
98 Km N of Modica (54633 inhabitants)
99 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 1.7 2021-01-31
18:29:09
37.725 14.998 3 2021-01-31
18:42:25
Sala Operativa INGV_OE (Catania) 86740831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-31 18:29:09
Latitude 37.7250
Longitude 14.9980
Depth (km) 3 (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 86740831

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) 1300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
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) 0.19
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 86740831
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-01-31 18:42:25
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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