Earthquake with magnitude of ML 1.4 on date 17-09-2021 and time 15:35:54 (Italy) in region 12 km W Milo (CT)

A magnitude ML 1.4 earthquake occured in region: 12 km W Milo (CT), on

  • 17-09-2021 13:35:54 (UTC)
  • 17-09-2021 15:35:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.767, 14.993 at 2 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 12 1087 1087
Zafferana Etnea CT 13 9517 10604
Randazzo CT 13 10900 21504
Maletto CT 13 3920 25424
Sant'Alfio CT 14 1582 27006
Bronte CT 14 19172 46178
Moio Alcantara ME 16 717 46895
Santa Venerina CT 16 8592 55487
Linguaglossa CT 16 5403 60890
Ragalna CT 16 3924 64814
Santa Domenica Vittoria ME 17 980 65794
Piedimonte Etneo CT 17 3963 69757
Nicolosi CT 17 7463 77220
Castiglione di Sicilia CT 17 3215 80435
Giarre CT 17 27659 108094
Pedara CT 18 14102 122196
Biancavilla CT 18 24007 146203
Malvagna ME 18 733 146936
Mascali CT 18 14282 161218
Adrano CT 18 36122 197340
Trecastagni CT 18 10910 208250
Roccella Valdemone ME 19 666 208916
Santa Maria di Licodia CT 19 7641 216557
Riposto CT 19 14838 231395
Fiumefreddo di Sicilia CT 19 9623 241018
Belpasso CT 19 28108 269126
Maniace CT 19 3765 272891
Viagrande CT 20 8563 281454
Francavilla di Sicilia ME 20 3945 285399

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Acireale (52622 inhabitants)
30 Km N of Catania (314555 inhabitants)
69 Km SW of Messina (238439 inhabitants)
69 Km SW of Reggio di Calabria (183035 inhabitants)
83 Km NW of Siracusa (122291 inhabitants)
87 Km E of Caltanissetta (63360 inhabitants)
96 Km N of Ragusa (73313 inhabitants)
99 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 1.4 2021-09-17
13:35:54
37.767 14.993 2 2021-09-17
13:48:28
Sala Operativa INGV_OE (Catania) 95548551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-17 13:35:54
Latitude 37.7670
Longitude 14.9930
Depth (km) 2 (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 95548551

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) 300
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
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) 0.23
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:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 95548551
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-09-17 13:48:28
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