Earthquake with magnitude of ML 1.7 on date 14-07-2021 and time 02:02:10 (Italy) in region 1 km W Bronte (CT)

A magnitude ML 1.7 earthquake occured in region: 1 km W Bronte (CT), on

  • 14-07-2021 00:02:10 (UTC)
  • 14-07-2021 02:02:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.792, 14.818 at 32 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Bronte CT 1 19172 19172
Maletto CT 6 3920 23092
Maniace CT 8 3765 26857
CesarĂ² ME 11 2439 29296
San Teodoro ME 12 1403 30699
Adrano CT 14 36122 66821
Randazzo CT 15 10900 77721
Biancavilla CT 17 24007 101728
Santa Domenica Vittoria ME 19 980 102708
Troina EN 19 9373 112081

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of Acireale (52622 inhabitants)
40 Km NW of Catania (314555 inhabitants)
74 Km E of Caltanissetta (63360 inhabitants)
79 Km SW of Messina (238439 inhabitants)
81 Km W of Reggio di Calabria (183035 inhabitants)
92 Km NW of Siracusa (122291 inhabitants)
95 Km NE of Gela (75827 inhabitants)
97 Km N of Ragusa (73313 inhabitants)
97 Km N 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 1.7 2021-07-14
37.792 14.818 32 2021-07-14
Sala Sismica INGV-Roma 92733591
ML 1.7 2021-07-14
37.7918 14.8178 32 2021-07-14
Sala Sismica INGV-Roma 92732911
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2021-07-14 00:02:10 ± 0.23
Latitude 37.7920
Longitude 14.8180
Depth (km) 32 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV
Event type earthquake
Origin ID 92733591


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) 1250
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
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) 0.31
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
Magnitudes information


Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 92732911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-14 00:18:55


Field Value
Value 1.7
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 92733591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-14 00:32:53
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