Earthquake with magnitude of ML 1.5 on date 11-09-2021 and time 20:01:37 (UTC) in region 5 km N Pedara (CT)

A magnitude ML 1.5 earthquake occured in region: 5 km N Pedara (CT), on

  • 11-09-2021 20:01:37 (UTC)
  • 11-09-2021 22:01:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.662, 15.056 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
Pedara CT 5 14102 14102
Trecastagni CT 5 10910 25012
Zafferana Etnea CT 6 9517 34529
Nicolosi CT 6 7463 41992
Viagrande CT 7 8563 50555
Santa Venerina CT 8 8592 59147
Aci Bonaccorsi CT 8 3524 62671
Aci Sant'Antonio CT 9 17984 80655
Milo CT 9 1087 81742
Tremestieri Etneo CT 10 20589 102331
Mascalucia CT 10 31958 134289
San Giovanni la Punta CT 10 23060 157349
Aci Catena CT 10 29851 187200
San Pietro Clarenza CT 10 7743 194943
Belpasso CT 10 28108 223051
Ragalna CT 11 3924 226975
Valverde CT 11 7840 234815
Gravina di Catania CT 11 25838 260653
Acireale CT 11 52622 313275
Camporotondo Etneo CT 11 5023 318298
Sant'Agata li Battiati CT 12 9479 327777
San Gregorio di Catania CT 12 11966 339743
Sant'Alfio CT 12 1582 341325
Giarre CT 14 27659 368984
Aci Castello CT 14 18723 387707
Riposto CT 15 14838 402545
Santa Maria di Licodia CT 16 7641 410186
Misterbianco CT 16 49410 459596
Mascali CT 16 14282 473878
PaternĂ² CT 16 48228 522106
Biancavilla CT 17 24007 546113
Catania CT 18 314555 860668
Motta Sant'Anastasia CT 18 12116 872784
Adrano CT 20 36122 908906
Piedimonte Etneo CT 20 3963 912869
Fiumefreddo di Sicilia CT 20 9623 922492

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NW of Acireale (52622 inhabitants)
18 Km N of Catania (314555 inhabitants)
70 Km N of Siracusa (122291 inhabitants)
72 Km SW of Reggio di Calabria (183035 inhabitants)
74 Km SW of Messina (238439 inhabitants)
87 Km NE of Ragusa (73313 inhabitants)
90 Km E of Caltanissetta (63360 inhabitants)
91 Km NE of Vittoria (63339 inhabitants)
93 Km N of Modica (54633 inhabitants)
97 Km NE of Gela (75827 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 1.5 2021-09-11
20:01:37
37.662 15.056 12 2021-09-11
20:07:31
Sala Operativa INGV_OE (Catania) 95315461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-11 20:01:37
Latitude 37.6620
Longitude 15.0560
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 95315461

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) 168
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) 0.22
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:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 95315461
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-09-11 20:07:31
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