Earthquake with magnitude of ML 1.2 on date 22-07-2020 and time 12:46:36 (Italy) in region 1 km SW Zafferana Etnea (CT)

A magnitude ML 1.2 earthquake occured in region: 1 km SW Zafferana Etnea (CT), on

  • 22-07-2020 10:46:36 (UTC)
  • 22-07-2020 12:46:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.68, 15.09 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
Zafferana Etnea CT 2 9517 9517
Santa Venerina CT 4 8592 18109
Milo CT 5 1087 19196
Trecastagni CT 8 10910 30106
Sant'Alfio CT 8 1582 31688
Pedara CT 8 14102 45790
Viagrande CT 8 8563 54353
Aci Sant'Antonio CT 9 17984 72337
Giarre CT 10 27659 99996
Aci Bonaccorsi CT 10 3524 103520
Nicolosi CT 10 7463 110983
Aci Catena CT 10 29851 140834
Acireale CT 10 52622 193456
Riposto CT 11 14838 208294
San Giovanni la Punta CT 12 23060 231354
Valverde CT 12 7840 239194
Mascali CT 12 14282 253476
Tremestieri Etneo CT 12 20589 274065
Mascalucia CT 13 31958 306023
San Gregorio di Catania CT 13 11966 317989
San Pietro Clarenza CT 14 7743 325732
Sant'Agata li Battiati CT 14 9479 335211
Gravina di Catania CT 14 25838 361049
Belpasso CT 15 28108 389157
Ragalna CT 15 3924 393081
Aci Castello CT 15 18723 411804
Camporotondo Etneo CT 15 5023 416827
Piedimonte Etneo CT 16 3963 420790
Fiumefreddo di Sicilia CT 16 9623 430413
Linguaglossa CT 18 5403 435816
Calatabiano CT 20 5308 441124
Santa Maria di Licodia CT 20 7641 448765
Misterbianco CT 20 49410 498175

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km NW of Acireale (52622 inhabitants)
20 Km N of Catania (314555 inhabitants)
68 Km SW of Reggio di Calabria (183035 inhabitants)
70 Km SW of Messina (238439 inhabitants)
72 Km N of Siracusa (122291 inhabitants)
90 Km NE of Ragusa (73313 inhabitants)
93 Km E of Caltanissetta (63360 inhabitants)
95 Km NE of Vittoria (63339 inhabitants)
96 Km N of Modica (54633 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 2020-07-22
10:46:36
37.69 15.09 0 2020-07-22
11:25:46
Sala Operativa INGV_OE (Catania) 81242391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-22 10:46:36
Latitude 37.69
Longitude 15.09
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 81242391

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) 74
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:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 81242391
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-07-22 11:25:46
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download