ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.9 on date 25-12-2018 and time 00:21:39 (UTC) in region 10 km W Zafferana Etnea (CT)

A magnitude ML 1.9 earthquake occured in region: 10 km W Zafferana Etnea (CT), on

  • 25-12-2018 00:21:39 (UTC)
  • 25-12-2018 01:21:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.71, 15 at 2 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
Ragalna CT 10 3924 13441
Milo CT 11 1087 14528
Nicolosi CT 11 7463 21991
Pedara CT 12 14102 36093
Santa Venerina CT 13 8592 44685
Trecastagni CT 13 10910 55595
Belpasso CT 14 28108 83703
Sant'Alfio CT 14 1582 85285
Biancavilla CT 14 24007 109292
Santa Maria di Licodia CT 14 7641 116933
Viagrande CT 14 8563 125496
Adrano CT 15 36122 161618
San Pietro Clarenza CT 16 7743 169361
Camporotondo Etneo CT 16 5023 174384
Aci Bonaccorsi CT 16 3524 177908
Mascalucia CT 16 31958 209866
Aci Sant'Antonio CT 16 17984 227850
Tremestieri Etneo CT 17 20589 248439
Bronte CT 17 19172 267611
Giarre CT 17 27659 295270
Paternò CT 17 48228 343498
Maletto CT 17 3920 347418
San Giovanni la Punta CT 17 23060 370478
Aci Catena CT 18 29851 400329
Gravina di Catania CT 18 25838 426167
Mascali CT 18 14282 440449
Riposto CT 19 14838 455287
Sant'Agata li Battiati CT 19 9479 464766
Valverde CT 19 7840 472606
Acireale CT 19 52622 525228
Randazzo CT 19 10900 536128
San Gregorio di Catania CT 19 11966 548094
Piedimonte Etneo CT 19 3963 552057
Linguaglossa CT 19 5403 557460

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of Acireale (52622 inhabitants)
25 Km NW of Catania (314555 inhabitants)
72 Km SW of Reggio di Calabria (183035 inhabitants)
73 Km SW of Messina (238439 inhabitants)
77 Km NW of Siracusa (122291 inhabitants)
86 Km E of Caltanissetta (63360 inhabitants)
91 Km N of Ragusa (73313 inhabitants)
94 Km NE of Vittoria (63339 inhabitants)
97 Km N of Modica (54633 inhabitants)
98 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
Rev 200 ML 1.9 2018-12-25
00:21:39
37.71 15 2 2018-12-26
13:35:59
Sala Operativa INGV-OE (Catania) 64243261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-25 00:21:39 ± 0
Latitude 37.71
Longitude 15.00
Depth (km) 2 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-CT
Event type earthquake
Origin ID 64243261

Uncertainty

Field Value
Preferred uncertainty description
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) 0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)
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)
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:1.9

Field Value
Value 1.9
Uncertainty 0
Num. used stations
Type of magnitude ML
Reference to an origin 64243261
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2018-12-26 13:35:59
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