Earthquake with magnitude of ML 1.4 on date 10-10-2021 and time 06:40:00 (Italy) in region 4 km S Santa Venerina (CT)

A magnitude ML 1.4 earthquake occured in region: 4 km S Santa Venerina (CT), on

  • 10-10-2021 04:40:00 (UTC)
  • 10-10-2021 06:40:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.655, 15.146 at 23 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 4 8592 8592
Acireale CT 5 52622 61214
Aci Sant'Antonio CT 6 17984 79198
Aci Catena CT 6 29851 109049
Zafferana Etnea CT 6 9517 118566
Viagrande CT 7 8563 127129
Aci Bonaccorsi CT 7 3524 130653
Trecastagni CT 7 10910 141563
Milo CT 8 1087 142650
Pedara CT 9 14102 156752
Valverde CT 9 7840 164592
Giarre CT 9 27659 192251
San Giovanni la Punta CT 10 23060 215311
Sant'Alfio CT 10 1582 216893
Riposto CT 10 14838 231731
San Gregorio di Catania CT 10 11966 243697
Tremestieri Etneo CT 11 20589 264286
Aci Castello CT 11 18723 283009
Nicolosi CT 11 7463 290472
Sant'Agata li Battiati CT 12 9479 299951
Mascalucia CT 12 31958 331909
Mascali CT 12 14282 346191
Gravina di Catania CT 13 25838 372029
San Pietro Clarenza CT 14 7743 379772
Camporotondo Etneo CT 16 5023 384795
Belpasso CT 16 28108 412903
Fiumefreddo di Sicilia CT 16 9623 422526
Piedimonte Etneo CT 17 3963 426489
Catania CT 18 314555 741044
Ragalna CT 18 3924 744968
Misterbianco CT 19 49410 794378

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NW of Acireale (52622 inhabitants)
18 Km N of Catania (314555 inhabitants)
67 Km SW of Reggio di Calabria (183035 inhabitants)
67 Km N of Siracusa (122291 inhabitants)
70 Km SW of Messina (238439 inhabitants)
89 Km NE of Ragusa (73313 inhabitants)
95 Km NE of Modica (54633 inhabitants)
95 Km NE of Vittoria (63339 inhabitants)
97 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 1.4 2021-10-10
04:40:00
37.655 15.146 23 2021-10-12
09:48:37
Sala Operativa INGV_OE (Catania) 96398571
Reviewed
Rev100
ML 1.8 2021-10-10
04:40:01
37.6618 15.2233 19 2021-10-10
05:00:45
Sala Sismica INGV-Roma 96398601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-10 04:40:00
Latitude 37.6550
Longitude 15.1460
Depth (km) 23 (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 96398571

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) 1100
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
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) 0.17
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

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 96398601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-10 05:00:45

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 96398571
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-10-10 04:59:29
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