Earthquake with magnitude of ML 1.7 on date 02-11-2021 and time 22:49:14 (UTC) in region 2 km SW Militello in Val di Catania (CT)

A magnitude ML 1.7 earthquake occured in region: 2 km SW Militello in Val di Catania (CT), on

  • 02-11-2021 22:49:14 (UTC)
  • 02-11-2021 23:49:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.26, 14.783 at 23 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Militello in Val di Catania CT 2 7443 7443
Scordia CT 7 17095 24538
Mineo CT 8 5159 29697
Palagonia CT 8 16608 46305
Francofonte SR 9 12800 59105
Vizzini CT 11 6241 65346
Licodia Eubea CT 13 3081 68427
Grammichele CT 14 13418 81845
Buccheri SR 16 1999 83844
Ramacca CT 16 10894 94738
Monterosso Almo RG 19 3032 97770
Lentini SR 19 24085 121855

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km N of Ragusa (73313 inhabitants)
38 Km SW of Catania (314555 inhabitants)
41 Km NE of Vittoria (63339 inhabitants)
45 Km N of Modica (54633 inhabitants)
50 Km W of Siracusa (122291 inhabitants)
52 Km E of Gela (75827 inhabitants)
52 Km SW of Acireale (52622 inhabitants)
69 Km E of Caltanissetta (63360 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
Rev100
ML 1.7 2021-11-02
22:49:14
37.2595 14.7832 23 2021-11-02
23:18:00
Sala Sismica INGV-Roma 97178361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-02 22:49:14 ± 0.46
Latitude 37.2595 ± 0.0171
Longitude 14.7832 ± 0.0169
Depth (km) 23 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97178361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1445
Semi-minor axis of confidence ellipse (meter) 1333
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 182
Circular confidence region, given by single value of horizontal uncertainty (meter) 1450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.33635
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 97178361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-02 23:18:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RAFF.HHE. 2021-11-02T22:49:28.16 0.3 undecidable manual S 264 0.3363 114 0.82 60
IV.EFIU.HHZ. 2021-11-02T22:49:27.01 3.0 undecidable manual P 0 0
IV.SSY.HHZ. 2021-11-02T22:49:25.79 0.3 undecidable manual S 114 0.2527 122 0.65 63
IV.HMDC.HHZ. 2021-11-02T22:49:25.84 0.6 undecidable manual S 180 0.3004 117 -0.52 44
IV.HLNI.HHZ. 2021-11-02T22:49:22.18 0.6 undecidable manual S 38 0.1133 147 0.01 51
IV.RAFF.HHE. 2021-11-02T22:49:21.57 1.0 undecidable manual P 264 0.3363 114 -0.21 23
IV.HVZN.HHE. 2021-11-02T22:49:21.64 0.3 undecidable manual S 214 0.0971 151 -0.28 73
IV.HMDC.HHZ. 2021-11-02T22:49:20.96 0.1 undecidable manual P 180 0.3004 117 -0.26 94
IV.SSY.HHZ. 2021-11-02T22:49:20.51 0.3 negative manual P 114 0.2527 122 -0.01 75
IV.HVZN.HHE. 2021-11-02T22:49:18.36 1.0 undecidable manual P 214 0.0971 151 -0.3 24
IV.HLNI.HHZ. 2021-11-02T22:49:18.59 0.1 undecidable manual P 38 0.1133 147 -0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHE. ML:1.1 6.8901535E-5 2.0096 AML other m 2021-11-02T22:49:24.83
IV.HLNI.HHN. ML:1.1 6.969276E-5 3.5328 AML other m 2021-11-02T22:49:22.48
IV.SSY.HHE. ML:1.7 0.000224763 1.5488 AML other m 2021-11-02T22:49:32.93
IV.SSY.HHN. ML:1.9 0.00034066735 2.9952 AML other m 2021-11-02T22:49:21.01
IV.HMDC.HNE. ML:1.7 0.0001796178 2.88 AML other m 2021-11-02T22:49:25.08
IV.HMDC.HNN. ML:1.8 0.00023417585 2.3168 AML other m 2021-11-02T22:49:23.92
IV.HMDC.HHE. ML:1.5 0.0001205887 2.3168 AML other m 2021-11-02T22:49:24.10
IV.HMDC.HHN. ML:1.7 0.000166277 2.3296 AML other m 2021-11-02T22:49:23.87
IV.EFIU.HHE. ML:2.3 0.00029065875 1.2544 AML other m 2021-11-02T22:49:30.53
IV.EFIU.HHN. ML:2.2 0.0002293774 1.7408 AML other m 2021-11-02T22:49:35.23
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