Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 17-04-2023 and time 01:05:41 (Italy) in region 10 km W Linguaglossa (CT)

A magnitude ML 1.9 earthquake occured in region: 10 km W Linguaglossa (CT), on

  • 16-04-2023 23:05:41 (UTC)
  • 17-04-2023 01:05:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8060, 15.0420 at 2 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Linguaglossa CT 10 5403 5403
Moio Alcantara ME 11 717 6120
Castiglione di Sicilia CT 11 3215 9335
Milo CT 11 1087 10422
Sant'Alfio CT 11 1582 12004
Randazzo CT 12 10900 22904
Piedimonte Etneo CT 12 3963 26867
Malvagna ME 13 733 27600
Zafferana Etnea CT 13 9517 37117
Francavilla di Sicilia ME 14 3945 41062
Santa Domenica Vittoria ME 14 980 42042
Roccella Valdemone ME 15 666 42708
Mascali CT 15 14282 56990
Fiumefreddo di Sicilia CT 15 9623 66613
Giarre CT 15 27659 94272
Motta Camastra ME 15 845 95117
Maletto CT 16 3920 99037
Santa Venerina CT 16 8592 107629
Riposto CT 16 14838 122467
Calatabiano CT 17 5308 127775
Gaggi ME 17 3184 130959
Bronte CT 18 19172 150131
Graniti ME 19 1492 151623

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NW of Acireale (52622 inhabitants)
34 Km N of Catania (314555 inhabitants)
62 Km SW of Messina (238439 inhabitants)
63 Km SW of Reggio di Calabria (183035 inhabitants)
86 Km N of Siracusa (122291 inhabitants)
93 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 1.9 2023-04-16
23:05:41		 37.8062 15.0423 2 2024-03-01
17:18:20		 Bollettino Sismico Italiano INGV 124832031
Reviewed
Rev200 		ML 1.6 2023-04-16
23:05:40		 37.813 15.052 0 2024-01-24
14:57:33		 Sala Operativa INGV_OE (Catania) 116442851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-16 23:05:41 ± 0.13
Latitude 37.8062 ± 0.0090
Longitude 15.0423 ± 0.0091
Depth (km) 2 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124832031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1020
Semi-minor axis of confidence ellipse (meter) 750
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 5
Circular confidence region, given by single value of horizontal uncertainty (meter) 1020.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.01259
Epicentral distance of station farthest from the epicenter (degree) 0.22303
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 116442851
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2023-04-16 23:12:48

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 124832031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-24 14:47:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EPOZ.HHZ. 2023-04-16T23:05:46.62 0.1 undecidable manual P 139 19.6692 96 1.2 68
IV.EPMN.HHZ. 2023-04-16T23:05:46.20 0.6 undecidable manual S 82 11.9769 101 0.53 46
IV.ECTS.HHZ. 2023-04-16T23:05:46.10 0.6 undecidable manual S 39 10.878 102 0.79 42
IV.AIO.HHZ. 2023-04-16T23:05:46.73 0.3 undecidable manual P 42 24.753 95 0.28 72
IV.EPZF.HHZ. 2023-04-16T23:05:45.24 0.3 undecidable manual P 277 16.3725 98 0.47 70
IV.EMSG.HHZ. 2023-04-16T23:05:45.02 0.6 undecidable manual S 281 8.2806 105 0.59 45
IV.EFIU.HNN. 2023-04-16T23:05:44.56 0.3 undecidable manual P 97 14.874 99 0.1 76
IV.ESPC.HHN. 2023-04-16T23:05:44.12 0.3 undecidable manual P 186 12.6762 100 0.08 76
IV.ECTS.HHZ. 2023-04-16T23:05:43.51 0.1 negative manual P 39 10.878 102 -0.18 100
IV.ECBD.HHN. 2023-04-16T23:05:43.40 0.6 undecidable manual S 127 4.7952 115 0.1 51
IV.EPMN.HHZ. 2023-04-16T23:05:43.68 0.1 negative manual P 82 11.9769 101 -0.21 99
IV.EMSG.HHZ. 2023-04-16T23:05:43.52 0.1 undecidable manual P 281 8.2806 105 0.35 97
IV.ESAL.HHZ. 2023-04-16T23:05:43.84 0.1 undecidable manual P 125 9.879 103 0.36 96
IV.ECBD.HHN. 2023-04-16T23:05:42.11 0.1 undecidable manual P 127 4.7952 115 -0.41 96
IV.EMNR.HHZ. 2023-04-16T23:05:42.40 0.6 undecidable manual S 310 1.8981 140 -0.07 52
IV.EMCN.HHN. 2023-04-16T23:05:42.00 0.6 undecidable manual S 205 1.7982 141 -0.46 48
IV.EMNR.HHZ. 2023-04-16T23:05:41.60 0.1 undecidable manual P 310 1.8981 140 -0.44 96
IV.EMCN.HHN. 2023-04-16T23:05:41.45 0.1 undecidable manual P 205 1.7982 141 -0.58 92
IV.EPIT.HHN. 2023-04-16T23:05:41.54 0.6 undecidable manual S 65 1.3986 148 -0.83 41
IV.EPIT.HHN. 2023-04-16T23:05:41.13 0.1 undecidable manual P 65 1.3986 148 -0.85 82
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESAL.HHN. ML:2.3 0.00398 0.7 AML other m 2023-04-16T23:05:48.01
IV.ESAL.HHE. ML:2.4 0.004885 0.38 AML other m 2023-04-16T23:05:48.75
IV.EPMN.HHN. ML:1.8 0.00108 0.4 AML other m 2023-04-16T23:05:49.63
IV.EPMN.HHE. ML:2.0 0.001395 0.56 AML other m 2023-04-16T23:05:50.57
IV.EPZF.HNE. ML:2.0 0.0010015 0.36 AML other m 2023-04-16T23:05:54.66
IV.EPZF.HHE. ML:2.0 0.0009845 0.36 AML other m 2023-04-16T23:05:54.50
IV.EPZF.HNN. ML:1.9 0.0008694999999999999 0.36 AML other m 2023-04-16T23:05:54.63
IV.EPZF.HHN. ML:2.0 0.0009505000000000002 0.36 AML other m 2023-04-16T23:05:54.65
IV.AIO.HHN. ML:1.6 0.000237 0.4 AML other m 2023-04-16T23:05:54.70
IV.EPOZ.HNN. ML:1.9 0.0006805 0.96 AML other m 2023-04-16T23:05:54.33
IV.EPOZ.HHN. ML:1.8 0.000532 0.56 AML other m 2023-04-16T23:05:55.31
IV.EPOZ.HHE. ML:1.9 0.0007125 0.66 AML other m 2023-04-16T23:05:56.10
IV.EPOZ.HNE. ML:1.9 0.000721 0.76 AML other m 2023-04-16T23:05:56.13
IV.AIO.HHE. ML:1.5 0.0001905 0.94 AML other m 2023-04-16T23:05:56.41
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