Earthquake with magnitude of ML 1.1 on date 08-05-2021 and time 23:01:24 (Italy) in region 3 km W Sant'Alfio (CT)

A magnitude ML 1.1 earthquake occured in region: 3 km W Sant'Alfio (CT), on

  • 08-05-2021 21:01:24 (UTC)
  • 08-05-2021 23:01:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7500, 15.1150 at 6 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
Sant'Alfio CT 3 1582 1582
Milo CT 3 1087 2669
Zafferana Etnea CT 6 9517 12186
Giarre CT 7 27659 39845
Mascali CT 7 14282 54127
Santa Venerina CT 7 8592 62719
Riposto CT 8 14838 77557
Piedimonte Etneo CT 9 3963 81520
Fiumefreddo di Sicilia CT 10 9623 91143
Linguaglossa CT 11 5403 96546
Calatabiano CT 13 5308 101854
Castiglione di Sicilia CT 15 3215 105069
Trecastagni CT 15 10910 115979
Pedara CT 15 14102 130081
Viagrande CT 16 8563 138644
Gaggi ME 16 3184 141828
Acireale CT 16 52622 194450
Aci Sant'Antonio CT 16 17984 212434
Aci Catena CT 16 29851 242285
Nicolosi CT 17 7463 249748
Aci Bonaccorsi CT 17 3524 253272
Francavilla di Sicilia ME 17 3945 257217
Motta Camastra ME 17 845 258062
Giardini-Naxos ME 18 9415 267477
Moio Alcantara ME 18 717 268194
Taormina ME 19 10960 279154
Graniti ME 19 1492 280646
Castelmola ME 19 1088 281734
Valverde CT 19 7840 289574
San Giovanni la Punta CT 19 23060 312634
Malvagna ME 20 733 313367
Tremestieri Etneo CT 20 20589 333956

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km N of Acireale (52622 inhabitants)
28 Km N of Catania (314555 inhabitants)
61 Km SW of Reggio di Calabria (183035 inhabitants)
63 Km SW of Messina (238439 inhabitants)
78 Km N of Siracusa (122291 inhabitants)
97 Km E of Caltanissetta (63360 inhabitants)
98 Km NE of Ragusa (73313 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev200
ML 1.1 2021-05-08
21:01:24
37.75 15.115 6 2021-05-08
21:21:25
Sala Operativa INGV_OE (Catania) 89926351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-08 21:01:24
Latitude 37.7500
Longitude 15.1150
Depth (km) 6 (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 89926351

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) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
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) 0.14
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:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 89926351
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-05-08 21:21:25
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