Earthquake with magnitude of ML 1.6 on date 31-05-2021 and time 14:03:58 (Italy) in region 3 km S Motta Camastra (ME)

A magnitude ML 1.6 earthquake occured in region: 3 km S Motta Camastra (ME), on

  • 31-05-2021 12:03:58 (UTC)
  • 31-05-2021 14:03:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.866, 15.179 at 17 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
Motta Camastra ME 4 845 845
Gaggi ME 4 3184 4029
Linguaglossa CT 4 5403 9432
Graniti ME 5 1492 10924
Castiglione di Sicilia CT 5 3215 14139
Francavilla di Sicilia ME 6 3945 18084
Calatabiano CT 6 5308 23392
Piedimonte Etneo CT 6 3963 27355
Fiumefreddo di Sicilia CT 8 9623 36978
Castelmola ME 9 1088 38066
Giardini-Naxos ME 9 9415 47481
Taormina ME 9 10960 58441
Mongiuffi Melia ME 10 600 59041
Roccafiorita ME 11 197 59238
Gallodoro ME 11 367 59605
Letojanni ME 11 2861 62466
Limina ME 12 836 63302
Moio Alcantara ME 12 717 64019
Mascali CT 12 14282 78301
Malvagna ME 12 733 79034
Fondachelli-Fantina ME 14 1019 80053
Antillo ME 14 919 80972
Sant'Alfio CT 14 1582 82554
Forza d'Agrò ME 15 911 83465
Riposto CT 15 14838 98303
Giarre CT 15 27659 125962
Sant'Alessio Siculo ME 16 1554 127516
Casalvecchio Siculo ME 16 842 128358
Roccella Valdemone ME 17 666 129024
Milo CT 17 1087 130111
Novara di Sicilia ME 17 1337 131448
Savoca ME 17 1732 133180
Santa Teresa di Riva ME 19 9377 142557
Mandanici ME 20 601 143158
Santa Domenica Vittoria ME 20 980 144138
Zafferana Etnea CT 20 9517 153655

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km N of Acireale (52622 inhabitants)
41 Km N of Catania (314555 inhabitants)
49 Km SW of Reggio di Calabria (183035 inhabitants)
49 Km SW of Messina (238439 inhabitants)
90 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 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 1.6 2021-05-31
12:03:58
37.866 15.179 17 2021-05-31
12:11:49
Sala Operativa INGV_OE (Catania) 90659971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-31 12:03:58
Latitude 37.8660
Longitude 15.1790
Depth (km) 17 (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 90659971

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) 600
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
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:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 90659971
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-05-31 12:11:49
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