Earthquake with magnitude of ML 1.6 on date 27-09-2020 and time 10:02:32 (Italy) in region 4 km NW Randazzo (CT)

A magnitude ML 1.6 earthquake occured in region: 4 km NW Randazzo (CT), on

  • 27-09-2020 08:02:32 (UTC)
  • 27-09-2020 10:02:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9, 14.91 at 32 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
Randazzo CT 4 10900 10900
Santa Domenica Vittoria ME 5 980 11880
Maletto CT 8 3920 15800
Maniace CT 10 3765 19565
Roccella Valdemone ME 10 666 20231
Floresta ME 10 485 20716
Moio Alcantara ME 13 717 21433
Malvagna ME 13 733 22166
Bronte CT 14 19172 41338
Tortorici ME 17 6435 47773
Ucria ME 17 1058 48831
Montalbano Elicona ME 17 2287 51118
Raccuja ME 18 1041 52159
CesarĂ² ME 18 2439 54598
San Piero Patti ME 18 2915 57513
Castiglione di Sicilia CT 19 3215 60728
San Teodoro ME 19 1403 62131
Galati Mamertino ME 20 2627 64758

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of Acireale (52622 inhabitants)
46 Km NW of Catania (314555 inhabitants)
66 Km SW of Messina (238439 inhabitants)
69 Km W of Reggio di Calabria (183035 inhabitants)
87 Km NE of Caltanissetta (63360 inhabitants)
99 Km NW of Siracusa (122291 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 1.6 2020-09-27
08:02:32
37.9 14.91 32 2020-09-27
08:38:55
Sala Operativa INGV_OE (Catania) 83294241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-27 08:02:32
Latitude 37.90
Longitude 14.91
Depth (km) 32 (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 83294241

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) 2900
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
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) 0.06
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:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 83294241
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-09-27 08:38:55
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