Earthquake with magnitude of ML 1.7 on date 19-12-2020 and time 12:30:51 (UTC) in region 7 km N Ragalna (CT)

A magnitude ML 1.7 earthquake occured in region: 7 km N Ragalna (CT), on

  • 19-12-2020 12:30:51 (UTC)
  • 19-12-2020 13:30:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7, 14.92 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
Ragalna CT 7 3924 3924
Biancavilla CT 8 24007 27931
Adrano CT 9 36122 64053
Santa Maria di Licodia CT 9 7641 71694
Belpasso CT 12 28108 99802
Nicolosi CT 13 7463 107265
Bronte CT 13 19172 126437
PaternĂ² CT 13 48228 174665
Pedara CT 15 14102 188767
Zafferana Etnea CT 16 9517 198284
Maletto CT 16 3920 202204
Camporotondo Etneo CT 16 5023 207227
Trecastagni CT 16 10910 218137
San Pietro Clarenza CT 16 7743 225880
Milo CT 17 1087 226967
Mascalucia CT 18 31958 258925
Viagrande CT 18 8563 267488
Centuripe EN 18 5470 272958
Tremestieri Etneo CT 19 20589 293547
Santa Venerina CT 19 8592 302139
Gravina di Catania CT 19 25838 327977
Aci Bonaccorsi CT 20 3524 331501
San Giovanni la Punta CT 20 23060 354561

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km W of Acireale (52622 inhabitants)
26 Km NW of Catania (314555 inhabitants)
78 Km NW of Siracusa (122291 inhabitants)
78 Km SW of Reggio di Calabria (183035 inhabitants)
79 Km SW of Messina (238439 inhabitants)
79 Km E of Caltanissetta (63360 inhabitants)
87 Km N of Ragusa (73313 inhabitants)
90 Km NE of Vittoria (63339 inhabitants)
92 Km NE of Gela (75827 inhabitants)
94 Km N of Modica (54633 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 2020-12-19
12:30:51
37.7 14.92 0 2020-12-19
15:10:26
Sala Operativa INGV_OE (Catania) 85549251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-19 12:30:51
Latitude 37.70
Longitude 14.92
Depth (km) 0 (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 85549251

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
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
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) 0.24
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 85549251
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-12-19 15:10:26
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download