Earthquake with magnitude of ML 1.0 on date 12-10-2021 and time 22:09:53 (Italy) in region 4 km W Milo (CT)

A magnitude ML 1.0 earthquake occured in region: 4 km W Milo (CT), on

  • 12-10-2021 20:09:53 (UTC)
  • 12-10-2021 22:09:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.738, 15.076 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
Milo CT 4 1087 1087
Zafferana Etnea CT 5 9517 10604
Sant'Alfio CT 6 1582 12186
Santa Venerina CT 8 8592 20778
Giarre CT 10 27659 48437
Mascali CT 11 14282 62719
Riposto CT 11 14838 77557
Piedimonte Etneo CT 12 3963 81520
Linguaglossa CT 13 5403 86923
Fiumefreddo di Sicilia CT 13 9623 96546
Trecastagni CT 13 10910 107456
Pedara CT 13 14102 121558
Viagrande CT 14 8563 130121
Nicolosi CT 14 7463 137584
Aci Sant'Antonio CT 15 17984 155568
Aci Bonaccorsi CT 16 3524 159092
Acireale CT 16 52622 211714
Aci Catena CT 16 29851 241565
Calatabiano CT 17 5308 246873
Castiglione di Sicilia CT 17 3215 250088
Ragalna CT 17 3924 254012
San Giovanni la Punta CT 18 23060 277072
Tremestieri Etneo CT 18 20589 297661
Moio Alcantara ME 18 717 298378
Valverde CT 18 7840 306218
Belpasso CT 18 28108 334326
Mascalucia CT 18 31958 366284
Gaggi ME 19 3184 369468
San Pietro Clarenza CT 19 7743 377211
Francavilla di Sicilia ME 19 3945 381156
San Gregorio di Catania CT 19 11966 393122
Randazzo CT 19 10900 404022
Gravina di Catania CT 20 25838 429860
Motta Camastra ME 20 845 430705
Sant'Agata li Battiati CT 20 9479 440184
Camporotondo Etneo CT 20 5023 445207

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NW of Acireale (52622 inhabitants)
26 Km N of Catania (314555 inhabitants)
65 Km SW of Reggio di Calabria (183035 inhabitants)
66 Km SW of Messina (238439 inhabitants)
78 Km N of Siracusa (122291 inhabitants)
93 Km E of Caltanissetta (63360 inhabitants)
95 Km NE of Ragusa (73313 inhabitants)
100 Km NE of Vittoria (63339 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 1.0 2021-10-12
20:09:53
37.738 15.076 5 2021-10-12
20:20:39
Sala Operativa INGV_OE (Catania) 96481371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-12 20:09:53
Latitude 37.7380
Longitude 15.0760
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 96481371

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) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
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) 0.22
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

Field Value
Value 1
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 96481371
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-10-12 20:20:39
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