Earthquake with magnitude of ML 1.2 on date 25-08-2021 and time 22:40:36 (Italy) in region 12 km W Milo (CT)

A magnitude ML 1.2 earthquake occured in region: 12 km W Milo (CT), on

  • 25-08-2021 20:40:36 (UTC)
  • 25-08-2021 22:40:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.757, 14.989 at 0 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 12 9517 10604
Maletto CT 14 3920 14524
Sant'Alfio CT 14 1582 16106
Randazzo CT 14 10900 27006
Bronte CT 14 19172 46178
Ragalna CT 15 3924 50102
Santa Venerina CT 15 8592 58694
Nicolosi CT 16 7463 66157
Biancavilla CT 17 24007 90164
Linguaglossa CT 17 5403 95567
Pedara CT 17 14102 109669
Moio Alcantara ME 17 717 110386
Adrano CT 17 36122 146508
Trecastagni CT 17 10910 157418
Giarre CT 18 27659 185077
Piedimonte Etneo CT 18 3963 189040
Santa Maria di Licodia CT 18 7641 196681
Santa Domenica Vittoria ME 18 980 197661
Mascali CT 18 14282 211943
Belpasso CT 18 28108 240051
Castiglione di Sicilia CT 18 3215 243266
Viagrande CT 19 8563 251829
Malvagna ME 19 733 252562
Riposto CT 19 14838 267400
Roccella Valdemone ME 20 666 268066
Maniace CT 20 3765 271831
Fiumefreddo di Sicilia CT 20 9623 281454

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Acireale (52622 inhabitants)
29 Km N of Catania (314555 inhabitants)
70 Km SW of Messina (238439 inhabitants)
70 Km SW of Reggio di Calabria (183035 inhabitants)
82 Km NW of Siracusa (122291 inhabitants)
87 Km E of Caltanissetta (63360 inhabitants)
95 Km N of Ragusa (73313 inhabitants)
98 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 1.2 2021-08-25
20:40:36
37.757 14.989 0 2021-08-25
20:56:52
Sala Operativa INGV_OE (Catania) 94633751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-25 20:40:36
Latitude 37.7570
Longitude 14.9890
Depth (km) 0 (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 94633751

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) 196
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) 0.15
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:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 94633751
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-08-25 20:56:52
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