Earthquake with magnitude of ML 1.9 on date 28-12-2018 and time 19:40:17 (Italy) in region 4 km E Ragalna (CT)

A magnitude ML 1.9 earthquake occured in region: 4 km E Ragalna (CT), on

  • 28-12-2018 18:40:17 (UTC)
  • 28-12-2018 19:40:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.64, 14.99 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 4 3924 3924
Nicolosi CT 4 7463 11387
Belpasso CT 5 28108 39495
Pedara CT 7 14102 53597
Camporotondo Etneo CT 8 5023 58620
San Pietro Clarenza CT 8 7743 66363
Trecastagni CT 9 10910 77273
Santa Maria di Licodia CT 9 7641 84914
Mascalucia CT 9 31958 116872
PaternĂ² CT 10 48228 165100
Viagrande CT 10 8563 173663
Biancavilla CT 10 24007 197670
Tremestieri Etneo CT 10 20589 218259
Gravina di Catania CT 11 25838 244097
San Giovanni la Punta CT 12 23060 267157
Aci Bonaccorsi CT 12 3524 270681
Sant'Agata li Battiati CT 12 9479 280160
Zafferana Etnea CT 12 9517 289677
Aci Sant'Antonio CT 13 17984 307661
Misterbianco CT 13 49410 357071
San Gregorio di Catania CT 13 11966 369037
Adrano CT 14 36122 405159
Valverde CT 14 7840 412999
Motta Sant'Anastasia CT 14 12116 425115
Aci Catena CT 14 29851 454966
Santa Venerina CT 15 8592 463558
Milo CT 15 1087 464645
Acireale CT 16 52622 517267
Aci Castello CT 17 18723 535990
Catania CT 17 314555 850545
Sant'Alfio CT 18 1582 852127

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km W of Acireale (52622 inhabitants)
17 Km NW of Catania (314555 inhabitants)
70 Km NW of Siracusa (122291 inhabitants)
78 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km SW of Messina (238439 inhabitants)
82 Km N of Ragusa (73313 inhabitants)
83 Km E of Caltanissetta (63360 inhabitants)
86 Km NE of Vittoria (63339 inhabitants)
89 Km N of Modica (54633 inhabitants)
91 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
Rev 200 ML 1.9 2018-12-28
18:40:17
37.64 14.99 0 2018-12-28
20:40:06
Sala Operativa INGV-OE (Catania) 64311801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-28 18:40:17 ± 0
Latitude 37.64
Longitude 14.99
Depth (km) 0 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-CT
Event type earthquake
Origin ID 64311801

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 64311801
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2018-12-28 20:40:06
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