Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 06-02-2023 and time 20:11:55 (UTC) in region 4 km SE Militello in Val di Catania (CT)

A magnitude ML 1.7 earthquake occured in region: 4 km SE Militello in Val di Catania (CT), on

  • 06-02-2023 20:11:55 (UTC)
  • 06-02-2023 21:11:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.2560, 14.8270 at 9 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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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 4 7443 7443
Scordia CT 5 17095 24538
Francofonte SR 5 12800 37338
Palagonia CT 11 16608 53946
Mineo CT 12 5159 59105
Vizzini CT 13 6241 65346
Buccheri SR 14 1999 67345
Licodia Eubea CT 16 3081 70426
Lentini SR 16 24085 94511
Carlentini SR 17 17798 112309
Grammichele CT 17 13418 125727
Ferla SR 18 2523 128250
Ramacca CT 19 10894 139144
Monterosso Almo RG 19 3032 142176
Buscemi SR 20 1051 143227
Cassaro SR 20 821 144048

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Catania (314555 inhabitants)
38 Km N of Ragusa (73313 inhabitants)
43 Km NE of Vittoria (63339 inhabitants)
44 Km N of Modica (54633 inhabitants)
47 Km NW of Siracusa (122291 inhabitants)
50 Km SW of Acireale (52622 inhabitants)
55 Km E of Gela (75827 inhabitants)
73 Km E of Caltanissetta (63360 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
Bulletin
Rev1000 		ML 1.7 2023-02-06
20:11:55		 37.2558 14.8272 9 2024-03-01
17:17:56		 Bollettino Sismico Italiano INGV 114655461
Reviewed
Rev100 		ML 1.7 2023-02-06
20:11:55		 37.2522 14.8278 9 2023-02-06
20:25:35		 Sala Sismica INGV-Roma 114180491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-06 20:11:55 ± 0.08
Latitude 37.2558 ± 0.0063
Longitude 14.8272 ± 0.0045
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 114655461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 646
Semi-minor axis of confidence ellipse (meter) 394
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 353
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.09893
Epicentral distance of station farthest from the epicenter (degree) 0.48294
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 114655461
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-02-21 12:32:06

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 114180491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-06 20:25:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CROCE.HHE. 2023-02-06T20:12:13.06 0.3 undecidable manual S 209 53.6019 50 0.38 64
IV.HAVL.HHE. 2023-02-06T20:12:10.29 0.3 undecidable manual S 141 41.9247 50 0.72 59
IV.RAFF.HHZ. 2023-02-06T20:12:10.56 0.6 undecidable manual S 265 41.2254 50 1.2 32
IV.HSRS.HNN. 2023-02-06T20:12:09.03 0.6 undecidable manual S 117 39.3273 50 0.17 46
IV.HVIT.HHE. 2023-02-06T20:12:08.72 0.3 undecidable manual S 223 39.8268 50 -0.27 68
IV.AGST.EHE. 2023-02-06T20:12:07.40 0.6 undecidable manual S 90 35.3424 50 -0.4 44
IV.HMDC.HHZ. 2023-02-06T20:12:06.52 0.3 undecidable manual S 187 33.1446 50 -0.69 60
IV.HAGA.HHE. 2023-02-06T20:12:05.84 0.3 undecidable manual S 84 29.1486 107 -0.13 71
IV.CROCE.HHE. 2023-02-06T20:12:05.79 0.6 undecidable manual P 209 53.6019 50 0.41 43
IV.SSY.HHZ. 2023-02-06T20:12:04.83 0.3 undecidable manual S 116 24.3534 110 0.42 67
IV.ESML.HNE. 2023-02-06T20:12:03.11 1.0 undecidable manual P 7 40.4262 50 -0.25 23
IV.HVIT.HHE. 2023-02-06T20:12:03.04 0.1 undecidable manual P 223 39.8268 50 -0.21 91
IV.HAVL.HHE. 2023-02-06T20:12:03.42 0.1 undecidable manual P 141 41.9247 50 -0.16 92
IV.AGST.EHE. 2023-02-06T20:12:03.32 1.0 undecidable manual P 90 35.3424 50 0.76 20
IV.RAFF.HHZ. 2023-02-06T20:12:03.57 0.1 undecidable manual P 265 41.2254 50 0.1 93
IV.HMDC.HHZ. 2023-02-06T20:12:02.06 0.1 undecidable manual P 187 33.1446 50 -0.17 93
IV.HSRS.HNN. 2023-02-06T20:12:02.37 1.0 undecidable manual P 117 39.3273 50 -0.81 19
IV.HCRL.HHZ. 2023-02-06T20:12:02.62 0.3 undecidable manual S 80 18.3705 116 0.12 72
IT.LNT.HGE. 2023-02-06T20:12:01.80 0.3 undecidable manual S 77 15.873 119 0.08 73
IV.HAGA.HHE. 2023-02-06T20:12:01.37 0.1 undecidable manual P 84 29.1486 107 -0.14 94
IV.HLNI.HHZ. 2023-02-06T20:12:00.43 0.3 undecidable manual S 21 10.9779 129 0.11 74
IV.HVZN.HHZ. 2023-02-06T20:12:00.96 0.3 undecidable manual S 229 13.0758 124 0.07 74
IV.SSY.HHZ. 2023-02-06T20:12:00.56 0.1 undecidable manual P 116 24.3534 110 -0.04 97
IV.EMSA.HHZ. 2023-02-06T20:12:00.93 1.0 undecidable manual P 21 28.8489 107 -0.52 22
IT.LNT.HGE. 2023-02-06T20:11:59.09 0.1 undecidable manual P 77 15.873 119 0.04 99
IV.HCRL.HHZ. 2023-02-06T20:11:59.43 0.1 undecidable manual P 80 18.3705 116 -0.07 98
IV.HLNI.HHZ. 2023-02-06T20:11:58.26 0.1 undecidable manual P 21 10.9779 129 0.01 100
IV.HVZN.HHZ. 2023-02-06T20:11:58.42 0.1 undecidable manual P 229 13.0758 124 -0.16 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHE. ML:1.9 0.00102 0.72 AML other m 2023-02-06T20:12:00.57
IV.HLNI.HHN. ML:1.8 0.000796 0.1 AML other m 2023-02-06T20:12:00.58
IV.HVZN.HHE. ML:1.6 0.000524 0.38 AML other m 2023-02-06T20:12:01.72
IV.HVZN.HNE. ML:1.6 0.0005185 0.36 AML other m 2023-02-06T20:12:01.73
IV.HCRL.HHE. ML:1.5 0.0002685 0.68 AML other m 2023-02-06T20:12:02.90
IV.HVZN.HHN. ML:1.7 0.0005835 1.64 AML other m 2023-02-06T20:12:02.94
IV.HVZN.HNN. ML:1.7 0.00054910665 1.6544 AML other m 2023-02-06T20:12:02.12
IV.HCRL.HHN. ML:1.5 0.00026649999999999997 0.2 AML other m 2023-02-06T20:12:03.07
IV.SSY.HNE. ML:1.7 0.00034250000000000003 1.36 AML other m 2023-02-06T20:12:07.20
IV.SSY.HNN. ML:1.7 0.000333 0.22 AML other m 2023-02-06T20:12:07.79
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