Earthquake with magnitude of ML 1.3 on date 23-09-2020 and time 22:20:31 (UTC) in region 11 km W Milo (CT)

A magnitude ML 1.3 earthquake occured in region: 11 km W Milo (CT), on

  • 23-09-2020 22:20:31 (UTC)
  • 24-09-2020 00:20:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.759, 14.999 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
Milo CT 11 1087 1087
Zafferana Etnea CT 12 9517 10604
Sant'Alfio CT 13 1582 12186
Maletto CT 14 3920 16106
Randazzo CT 14 10900 27006
Santa Venerina CT 15 8592 35598
Bronte CT 15 19172 54770
Ragalna CT 15 3924 58694
Linguaglossa CT 16 5403 64097
Nicolosi CT 16 7463 71560
Moio Alcantara ME 16 717 72277
Pedara CT 17 14102 86379
Piedimonte Etneo CT 17 3963 90342
Giarre CT 17 27659 118001
Biancavilla CT 17 24007 142008
Trecastagni CT 17 10910 152918
Mascali CT 17 14282 167200
Castiglione di Sicilia CT 18 3215 170415
Santa Domenica Vittoria ME 18 980 171395
Adrano CT 18 36122 207517
Riposto CT 18 14838 222355
Santa Maria di Licodia CT 19 7641 229996
Viagrande CT 19 8563 238559
Malvagna ME 19 733 239292
Belpasso CT 19 28108 267400
Fiumefreddo di Sicilia CT 19 9623 277023
Roccella Valdemone ME 20 666 277689

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Acireale (52622 inhabitants)
29 Km N of Catania (314555 inhabitants)
69 Km SW of Messina (238439 inhabitants)
69 Km SW of Reggio di Calabria (183035 inhabitants)
82 Km NW of Siracusa (122291 inhabitants)
88 Km E of Caltanissetta (63360 inhabitants)
96 Km N of Ragusa (73313 inhabitants)
99 Km NE of Vittoria (63339 inhabitants)
Recent and historical seismicity
Seismic hazard
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 ( 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
ML 1.3 2020-09-23
37.759 14.999 1 2020-09-23
Sala Operativa INGV_OE (Catania) 83172551
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2020-09-23 22:20:31
Latitude 37.7590
Longitude 14.9990
Depth (km) 1 (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 83172551


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) 200
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
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) 0.13
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


Field Value
Value 1.3
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 83172551
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-09-23 22:51:07
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download