Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 17-01-2023 and time 08:32:27 (UTC) in region 12 km N Ragalna (CT)

A magnitude ML 2.0 earthquake occured in region: 12 km N Ragalna (CT), on

  • 17-01-2023 08:32:27 (UTC)
  • 17-01-2023 09:32:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7330, 14.9660 at 10 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
Ragalna CT 12 3924 3924
Zafferana Etnea CT 13 9517 13441
Biancavilla CT 13 24007 37448
Bronte CT 13 19172 56620
Milo CT 13 1087 57707
Maletto CT 14 3920 61627
Adrano CT 14 36122 97749
Nicolosi CT 14 7463 105212
Santa Maria di Licodia CT 15 7641 112853
Pedara CT 15 14102 126955
Belpasso CT 16 28108 155063
Sant'Alfio CT 16 1582 156645
Santa Venerina CT 16 8592 165237
Randazzo CT 16 10900 176137
Trecastagni CT 16 10910 187047
Viagrande CT 18 8563 195610
Paternò CT 18 48228 243838
San Pietro Clarenza CT 19 7743 251581
Camporotondo Etneo CT 19 5023 256604
Giarre CT 19 27659 284263
Mascalucia CT 19 31958 316221
Aci Bonaccorsi CT 20 3524 319745
Tremestieri Etneo CT 20 20589 340334
Linguaglossa CT 20 5403 345737
Aci Sant'Antonio CT 20 17984 363721
Moio Alcantara ME 20 717 364438
Maniace CT 20 3765 368203

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Acireale (52622 inhabitants)
28 Km NW of Catania (314555 inhabitants)
73 Km SW of Reggio di Calabria (183035 inhabitants)
73 Km SW of Messina (238439 inhabitants)
80 Km NW of Siracusa (122291 inhabitants)
84 Km E of Caltanissetta (63360 inhabitants)
92 Km N of Ragusa (73313 inhabitants)
95 Km NE of Vittoria (63339 inhabitants)
97 Km NE of Gela (75827 inhabitants)
99 Km N of Modica (54633 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 2.0 2023-01-17
08:32:27		 37.7332 14.9658 11 2024-03-01
17:18:14		 Bollettino Sismico Italiano INGV 119924451
Reviewed
Rev200 		ML 1.4 2023-01-17
08:32:27		 37.729 14.943 6 2023-08-07
13:32:29		 Sala Operativa INGV_OE (Catania) 113614321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-17 08:32:27 ± 0.18
Latitude 37.7332 ± 0.0063
Longitude 14.9658 ± 0.0080
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 119924451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 740
Semi-minor axis of confidence ellipse (meter) 287
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.02878
Epicentral distance of station farthest from the epicenter (degree) 0.31656
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 119924451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-07 13:32:17

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 113614321
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2023-01-17 08:39:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GALF.HHZ. 2023-01-17T08:32:34.79 0.6 undecidable manual P 266 35.1426 50 0.48 43
IV.EPZF.HHZ. 2023-01-17T08:32:33.98 0.6 undecidable manual S 317 13.875 127 0.56 44
IV.ECTS.HHZ. 2023-01-17T08:32:32.36 0.3 undecidable manual P 39 21.3675 116 0.2 70
IV.EMSG.HHZ. 2023-01-17T08:32:32.14 0.6 undecidable manual S 352 9.7791 137 -0.23 48
IV.ECHR.HHE. 2023-01-17T08:32:32.06 0.6 undecidable manual S 222 6.993 146 0.31 47
IV.EMPL.HHZ. 2023-01-17T08:32:31.70 0.6 undecidable manual S 176 5.994 150 0.13 49
IV.ECBD.HHN. 2023-01-17T08:32:31.73 0.6 undecidable manual S 64 11.7771 131 -1.13 34
IV.ESPC.HHN. 2023-01-17T08:32:31.79 0.6 undecidable manual S 130 6.993 146 0.03 50
IV.ESVO.HHE. 2023-01-17T08:32:31.99 0.6 undecidable manual S 339 4.6953 156 0.62 43
IV.ESLN.HHZ. 2023-01-17T08:32:31.54 0.6 undecidable manual S 170 4.4955 157 0.21 48
IV.ESML.HHZ. 2023-01-17T08:32:31.03 0.3 undecidable manual P 211 14.874 125 0 74
IV.EMFS.HHE. 2023-01-17T08:32:31.86 0.6 undecidable manual S 118 3.1968 163 0.68 42
IV.ECZM.HHN. 2023-01-17T08:32:30.84 0.6 undecidable manual S 268 5.3946 153 -0.63 43
IV.EMFO.HHE. 2023-01-17T08:32:30.32 0.1 undecidable manual P 88 10.878 134 -0.1 98
IV.ECBD.HHN. 2023-01-17T08:32:30.75 0.1 undecidable manual P 64 11.7771 131 0.2 95
IV.EMSG.HHZ. 2023-01-17T08:32:30.33 0.1 positive manual P 352 9.7791 137 0.07 98
IV.EPZF.HHZ. 2023-01-17T08:32:30.58 0.3 undecidable manual P 317 13.875 127 -0.29 70
IV.EMFS.HHE. 2023-01-17T08:32:29.81 0.1 undecidable manual P 118 3.1968 163 0.23 96
IV.EMPL.HHZ. 2023-01-17T08:32:29.72 0.1 undecidable manual P 176 5.994 150 -0.08 99
IV.ECZM.HHN. 2023-01-17T08:32:29.27 0.1 undecidable manual P 268 5.3946 153 -0.48 91
IV.ESPC.HHN. 2023-01-17T08:32:29.93 0.1 undecidable manual P 130 6.993 146 0.02 100
IV.ESVO.HHE. 2023-01-17T08:32:29.66 0.1 undecidable manual P 339 4.6953 156 -0.03 100
IV.ESLN.HHZ. 2023-01-17T08:32:29.59 0.1 undecidable manual P 170 4.4955 157 -0.08 99
IV.ECHR.HHE. 2023-01-17T08:32:29.61 0.1 undecidable manual P 222 6.993 146 -0.3 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHN. ML:1.8 0.0007310000000000001 0.64 AML other m 2023-01-17T08:32:34.52
IV.EMPL.HHE. ML:2.2 0.0023099999999999996 0.2 AML other m 2023-01-17T08:32:34.99
IV.EMSG.HHE. ML:1.8 0.0007735 0.28 AML other m 2023-01-17T08:32:37.12
IV.EMPL.HHN. ML:2.2 0.002715 0.2 AML other m 2023-01-17T08:32:37.17
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