Earthquake with magnitude of ML 1.5 on date 27-10-2020 and time 11:09:18 (Italy) in region 10 km W Zafferana Etnea (CT)

A magnitude ML 1.5 earthquake occured in region: 10 km W Zafferana Etnea (CT), on

  • 27-10-2020 10:09:18 (UTC)
  • 27-10-2020 11:09:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.73, 15 at 5 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 13 3924 14528
Sant'Alfio CT 13 1582 16110
Santa Venerina CT 13 8592 24702
Nicolosi CT 13 7463 32165
Pedara CT 14 14102 46267
Trecastagni CT 15 10910 57177
Biancavilla CT 15 24007 81184
Belpasso CT 16 28108 109292
Bronte CT 16 19172 128464
Maletto CT 16 3920 132384
Viagrande CT 16 8563 140947
Santa Maria di Licodia CT 16 7641 148588
Giarre CT 16 27659 176247
Adrano CT 17 36122 212369
Randazzo CT 17 10900 223269
Linguaglossa CT 18 5403 228672
Mascali CT 18 14282 242954
Aci Bonaccorsi CT 18 3524 246478
Aci Sant'Antonio CT 18 17984 264462
San Pietro Clarenza CT 18 7743 272205
Piedimonte Etneo CT 18 3963 276168
Riposto CT 18 14838 291006
Mascalucia CT 18 31958 322964
Camporotondo Etneo CT 18 5023 327987
Tremestieri Etneo CT 19 20589 348576
Moio Alcantara ME 19 717 349293
PaternĂ² CT 19 48228 397521
San Giovanni la Punta CT 19 23060 420581
Aci Catena CT 19 29851 450432
Fiumefreddo di Sicilia CT 20 9623 460055
Gravina di Catania CT 20 25838 485893
Acireale CT 20 52622 538515
Castiglione di Sicilia CT 20 3215 541730

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Acireale (52622 inhabitants)
27 Km N of Catania (314555 inhabitants)
71 Km SW of Reggio di Calabria (183035 inhabitants)
71 Km SW of Messina (238439 inhabitants)
79 Km NW of Siracusa (122291 inhabitants)
87 Km E of Caltanissetta (63360 inhabitants)
93 Km N of Ragusa (73313 inhabitants)
96 Km NE of Vittoria (63339 inhabitants)
99 Km NE of Gela (75827 inhabitants)
99 Km N of Modica (54633 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
Reviewed
Rev200
ML 1.5 2020-10-27
10:09:18
37.73 15 5 2020-10-27
10:25:29
Sala Operativa INGV_OE (Catania) 84177291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-27 10:09:18
Latitude 37.73
Longitude 15.00
Depth (km) 5 (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 84177291

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) 500
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
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) 0.27
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:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 84177291
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-10-27 10:25:29
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