Earthquake with magnitude of ML 1.4 on date 22-11-2021 and time 04:06:04 (UTC) in region 2 km SE Castiglione di Sicilia (CT)

A magnitude ML 1.4 earthquake occured in region: 2 km SE Castiglione di Sicilia (CT), on

  • 22-11-2021 04:06:04 (UTC)
  • 22-11-2021 05:06:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.873, 15.142 at 12 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
Castiglione di Sicilia CT 2 3215 3215
Francavilla di Sicilia ME 3 3945 7160
Linguaglossa CT 4 5403 12563
Motta Camastra ME 4 845 13408
Gaggi ME 7 3184 16592
Piedimonte Etneo CT 8 3963 20555
Graniti ME 8 1492 22047
Moio Alcantara ME 9 717 22764
Malvagna ME 9 733 23497
Calatabiano CT 9 5308 28805
Fiumefreddo di Sicilia CT 11 9623 38428
Castelmola ME 12 1088 39516
Mongiuffi Melia ME 12 600 40116
Giardini-Naxos ME 13 9415 49531
Taormina ME 13 10960 60491
Roccafiorita ME 13 197 60688
Fondachelli-Fantina ME 13 1019 61707
Roccella Valdemone ME 13 666 62373
Mascali CT 14 14282 76655
Limina ME 14 836 77491
Gallodoro ME 14 367 77858
Sant'Alfio CT 14 1582 79440
Letojanni ME 15 2861 82301
Antillo ME 15 919 83220
Novara di Sicilia ME 16 1337 84557
Giarre CT 16 27659 112216
Riposto CT 17 14838 127054
Santa Domenica Vittoria ME 17 980 128034
Milo CT 17 1087 129121
Randazzo CT 17 10900 140021
Forza d'Agrò ME 18 911 140932
Casalvecchio Siculo ME 19 842 141774
Sant'Alessio Siculo ME 19 1554 143328
Savoca ME 20 1732 145060
Zafferana Etnea CT 20 9517 154577

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of Acireale (52622 inhabitants)
41 Km N of Catania (314555 inhabitants)
51 Km SW of Messina (238439 inhabitants)
51 Km SW of Reggio di Calabria (183035 inhabitants)
91 Km N of Siracusa (122291 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev200
ML 1.4 2021-11-22
04:06:04
37.873 15.142 12 2021-11-22
04:20:10
Sala Operativa INGV_OE (Catania) 97676841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-22 04:06:04
Latitude 37.8730
Longitude 15.1420
Depth (km) 12 (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 97676841

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) 700
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
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) 0.21
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 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 97676841
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-11-22 04:20:10
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