Earthquake with magnitude of ML 1.6 on date 12-09-2021 and time 15:22:52 (Italy) in region 2 km SE Santa Venerina (CT)

A magnitude ML 1.6 earthquake occured in region: 2 km SE Santa Venerina (CT), on

  • 12-09-2021 13:22:52 (UTC)
  • 12-09-2021 15:22:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.671, 15.153 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
Santa Venerina CT 2 8592 8592
Zafferana Etnea CT 5 9517 18109
Acireale CT 7 52622 70731
Milo CT 7 1087 71818
Giarre CT 7 27659 99477
Aci Catena CT 8 29851 129328
Aci Sant'Antonio CT 8 17984 147312
Viagrande CT 8 8563 155875
Riposto CT 8 14838 170713
Sant'Alfio CT 8 1582 172295
Trecastagni CT 9 10910 183205
Aci Bonaccorsi CT 9 3524 186729
Pedara CT 10 14102 200831
Valverde CT 10 7840 208671
Mascali CT 11 14282 222953
San Giovanni la Punta CT 12 23060 246013
San Gregorio di Catania CT 12 11966 257979
Tremestieri Etneo CT 13 20589 278568
Aci Castello CT 13 18723 297291
Nicolosi CT 13 7463 304754
Mascalucia CT 14 31958 336712
Sant'Agata li Battiati CT 14 9479 346191
Gravina di Catania CT 15 25838 372029
Fiumefreddo di Sicilia CT 15 9623 381652
Piedimonte Etneo CT 16 3963 385615
San Pietro Clarenza CT 16 7743 393358
Camporotondo Etneo CT 17 5023 398381
Belpasso CT 18 28108 426489
Calatabiano CT 18 5308 431797
Linguaglossa CT 19 5403 437200
Ragalna CT 19 3924 441124
Catania CT 19 314555 755679

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km N of Acireale (52622 inhabitants)
19 Km N of Catania (314555 inhabitants)
65 Km SW of Reggio di Calabria (183035 inhabitants)
68 Km SW of Messina (238439 inhabitants)
69 Km N of Siracusa (122291 inhabitants)
91 Km NE of Ragusa (73313 inhabitants)
97 Km NE of Modica (54633 inhabitants)
97 Km NE of Vittoria (63339 inhabitants)
98 Km E of Caltanissetta (63360 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
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 (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 2021-09-12
13:22:52
37.671 15.153 5 2021-09-12
13:30:05
Sala Operativa INGV_OE (Catania) 95348791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-12 13:22:52
Latitude 37.6710
Longitude 15.1530
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 95348791

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) 125
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) 0.3
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 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 95348791
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-09-12 13:30:05
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download