Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 28-01-2023 and time 15:26:32 (UTC) in region 9 km SE Troina (EN)

A magnitude ML 2.1 earthquake occured in region: 9 km SE Troina (EN), on

  • 28-01-2023 15:26:32 (UTC)
  • 28-01-2023 16:26:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7370, 14.6790 at 27 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
Troina EN 9 9373 9373
Regalbuto EN 10 7277 16650
Cesarò ME 12 2439 19089
San Teodoro ME 13 1403 20492
Gagliano Castelferrato EN 13 3593 24085
Centuripe EN 14 5470 29555
Bronte CT 15 19172 48727
Adrano CT 16 36122 84849
Agira EN 16 8345 93194
Cerami EN 17 2006 95200
Maniace CT 18 3765 98965
Catenanuova EN 19 4866 103831
Maletto CT 20 3920 107751
Biancavilla CT 20 24007 131758

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km NW of Catania (314555 inhabitants)
45 Km W of Acireale (52622 inhabitants)
61 Km E of Caltanissetta (63360 inhabitants)
84 Km NE of Gela (75827 inhabitants)
88 Km N of Vittoria (63339 inhabitants)
90 Km N of Ragusa (73313 inhabitants)
92 Km SW of Messina (238439 inhabitants)
93 Km NW of Siracusa (122291 inhabitants)
94 Km W of Reggio di Calabria (183035 inhabitants)
98 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 2.1 2023-01-28
15:26:32		 37.7367 14.6788 27 2024-03-01
17:18:00		 Bollettino Sismico Italiano INGV 115664331
Reviewed
Rev100 		ML 2.2 2023-01-28
15:26:32		 37.7367 14.6677 29 2023-01-28
15:57:02		 Sala Sismica INGV-Roma 113857501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-28 15:26:32 ± 0.13
Latitude 37.7367 ± 0.0054
Longitude 14.6788 ± 0.0080
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115664331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 749
Semi-minor axis of confidence ellipse (meter) 181
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 55
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.09263
Epicentral distance of station farthest from the epicenter (degree) 0.85256
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 35
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 115664331
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-11 09:43:17

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 113857501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-28 15:57:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2023-01-28T15:27:00.60 0.6 undecidable manual S 155 94.6386 101 -0.03 44
IV.HMDC.HHZ. 2023-01-28T15:26:59.20 0.6 undecidable manual S 174 86.7465 102 0.64 38
IV.HSRS.HHZ. 2023-01-28T15:26:58.30 0.6 undecidable manual S 146 85.9473 102 -0.06 44
IV.SSY.HHZ. 2023-01-28T15:26:55.40 0.6 undecidable manual S 151 73.0713 104 0.41 42
IV.AGST.EHN. 2023-01-28T15:26:54.20 0.6 undecidable manual S 138 71.8725 105 -0.49 41
IV.HVZN.HHZ. 2023-01-28T15:26:52.80 0.6 undecidable manual S 177 61.9935 107 0.64 40
IV.AIO.HHZ. 2023-01-28T15:26:51.20 0.6 undecidable manual S 62 55.1004 110 0.8 38
IV.HCRL.HHZ. 2023-01-28T15:26:51.40 0.6 undecidable manual S 148 59.1963 108 -0.04 47
IV.HAVL.HHZ. 2023-01-28T15:26:48.05 0.3 undecidable manual P 155 94.6386 101 -0.7 55
IV.EPMN.HHZ. 2023-01-28T15:26:48.70 0.6 undecidable manual S 78 44.7219 115 0.87 37
IV.HLNI.HHZ. 2023-01-28T15:26:48.10 0.6 undecidable manual S 158 46.3203 114 -0.12 47
IV.HMDC.HHZ. 2023-01-28T15:26:47.62 0.3 undecidable manual P 174 86.7465 102 0.07 66
IV.LIBRI.HHZ. 2023-01-28T15:26:47.20 0.6 undecidable manual S 30 44.3223 115 -0.53 43
IV.HSRS.HHZ. 2023-01-28T15:26:46.91 0.3 undecidable manual P 146 85.9473 102 -0.53 60
IV.MUCR.HHZ. 2023-01-28T15:26:45.80 0.6 undecidable manual S 27 38.0286 119 -0.44 45
IV.ESPC.HHN. 2023-01-28T15:26:45.00 0.6 undecidable manual S 99 30.9468 125 0.35 46
IV.MPNC.HHZ. 2023-01-28T15:26:45.77 0.3 undecidable manual P 52 74.4699 104 0.06 68
IV.SSY.HHZ. 2023-01-28T15:26:45.24 0.1 undecidable manual P 151 73.0713 104 -0.25 87
IV.RAFF.HHZ. 2023-01-28T15:26:44.84 0.3 undecidable manual P 206 63.492 107 0.77 57
IV.EMSG.HHZ. 2023-01-28T15:26:44.60 0.6 undecidable manual S 68 25.5522 131 1.1 35
IV.PLLN.EHZ. 2023-01-28T15:26:44.13 0.6 undecidable manual P 301 54.8007 110 1.32 30
IV.EMNR.HHZ. 2023-01-28T15:26:44.70 0.6 undecidable manual S 74 31.746 124 -0.11 48
IV.AGST.EHN. 2023-01-28T15:26:44.68 0.3 undecidable manual P 138 71.8725 105 -0.64 59
IV.HVZN.HHZ. 2023-01-28T15:26:43.91 0.3 undecidable manual P 177 61.9935 107 0.05 70
IV.CSLB.HHZ. 2023-01-28T15:26:43.59 0.3 undecidable manual P 292 58.7967 108 0.21 68
IV.ESML.HHZ. 2023-01-28T15:26:42.70 0.6 undecidable manual S 127 21.9669 136 -0.12 49
IV.HCRL.HHZ. 2023-01-28T15:26:42.98 0.1 undecidable manual P 148 59.1963 108 -0.46 86
IV.EPZF.HHZ. 2023-01-28T15:26:42.90 0.6 undecidable manual S 58 18.3705 141 0.71 42
IV.AIO.HHZ. 2023-01-28T15:26:42.59 0.1 undecidable manual P 62 55.1004 110 -0.25 90
IV.EPOZ.HHN. 2023-01-28T15:26:41.74 0.3 undecidable manual P 99 45.3213 114 0.29 68
IV.ECZM.HHZ. 2023-01-28T15:26:41.70 0.6 undecidable manual S 92 19.7691 139 -0.72 41
IV.HLNI.HHZ. 2023-01-28T15:26:41.24 0.1 undecidable manual P 158 46.3203 114 -0.35 90
IV.EPMN.HHZ. 2023-01-28T15:26:41.49 0.1 undecidable manual P 78 44.7219 115 0.13 94
IV.GALF.HHE. 2023-01-28T15:26:41.20 0.6 undecidable manual S 254 10.2786 157 0.14 51
IV.EPIT.HHE. 2023-01-28T15:26:40.53 0.3 undecidable manual P 76 34.1436 122 0.6 64
IV.EMSA.HHZ. 2023-01-28T15:26:40.33 0.3 undecidable manual P 138 35.3424 121 0.25 70
IV.LIBRI.HHZ. 2023-01-28T15:26:40.88 0.1 undecidable manual P 30 44.3223 115 -0.42 89
IV.EMCN.HHN. 2023-01-28T15:26:40.03 0.6 undecidable manual P 79 31.746 124 0.42 45
IV.ECBD.HHN. 2023-01-28T15:26:40.27 0.3 undecidable manual P 82 36.0417 121 0.09 72
IV.ESCV.HHZ. 2023-01-28T15:26:40.80 0.6 undecidable manual S 85 11.9769 153 -0.46 46
IV.MUCR.HHZ. 2023-01-28T15:26:39.96 0.1 undecidable manual P 27 38.0286 119 -0.48 89
IV.EMPL.HHZ. 2023-01-28T15:26:39.29 0.3 undecidable manual P 104 26.3514 130 0.33 70
IV.ESLN.HHZ. 2023-01-28T15:26:39.19 0.3 undecidable manual P 100 26.3514 130 0.23 72
IV.EMNR.HHZ. 2023-01-28T15:26:39.98 0.3 undecidable manual P 74 31.746 124 0.37 69
IV.MSFR.HHZ. 2023-01-28T15:26:39.62 0.1 undecidable manual P 347 33.8439 122 -0.27 93
IV.EMSG.HHZ. 2023-01-28T15:26:39.03 0.1 undecidable manual P 68 25.5522 131 0.17 97
IV.ESML.HHZ. 2023-01-28T15:26:39.03 0.3 undecidable manual P 127 21.9669 136 0.57 67
IV.EMFO.HHE. 2023-01-28T15:26:39.77 0.3 undecidable manual P 90 36.1416 121 -0.41 68
IV.ESPC.HHN. 2023-01-28T15:26:39.98 0.6 undecidable manual P 99 30.9468 125 0.46 45
IV.EPZF.HHZ. 2023-01-28T15:26:38.18 0.1 positive manual P 58 18.3705 141 0.08 100
IV.ESVO.HHZ. 2023-01-28T15:26:38.68 0.3 undecidable manual P 80 23.8539 133 0.01 75
IV.ECHR.HNZ. 2023-01-28T15:26:38.54 0.3 undecidable manual P 105 21.2676 137 0.15 74
IV.ECZM.HHZ. 2023-01-28T15:26:37.77 0.3 undecidable manual P 92 19.7691 139 -0.47 69
IV.GALF.HHE. 2023-01-28T15:26:37.22 0.1 undecidable manual P 254 10.2786 157 -0.23 98
IV.ESCV.HHZ. 2023-01-28T15:26:36.85 0.1 undecidable manual P 85 11.9769 153 -0.71 84
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESCV.HHN. ML:2.7 0.0027199999999999998 0.32 AML other m 2023-01-28T15:26:41.61
IV.ESCV.HHE. ML:2.4 0.00151 0.2 AML other m 2023-01-28T15:26:42.40
IV.GALF.HHE. ML:2.4 0.00125 1.12 AML other m 2023-01-28T15:26:43.10
IV.GALF.HHN. ML:2.3 0.00123 0.46 AML other m 2023-01-28T15:26:43.79
IV.EPZF.HHN. ML:2.0 0.000432 0.8 AML other m 2023-01-28T15:26:43.44
IV.MUCR.HHE. ML:1.8 0.00020750000000000003 0.4 AML other m 2023-01-28T15:26:46.31
IV.EPZF.HHE. ML:1.8 0.000264 0.34 AML other m 2023-01-28T15:26:47.18
IV.MUCR.HHN. ML:1.8 0.000176 0.34 AML other m 2023-01-28T15:26:47.14
IV.LIBRI.HHE. ML:1.4 0.00007039999999999999 0.88 AML other m 2023-01-28T15:26:47.62
IV.LIBRI.HNE. ML:1.8 0.00015 1 AML other m 2023-01-28T15:26:47.17
IV.LIBRI.HHN. ML:1.4 0.00006705 0.82 AML other m 2023-01-28T15:26:47.38
IV.ENIC.HHN. ML:2.5 0.0010095 0.22 AML other m 2023-01-28T15:26:47.74
IV.EPMN.HHE. ML:2.2 0.0004415 0.24 AML other m 2023-01-28T15:26:49.19
IV.EMPL.HHN. ML:2.5 0.0012999999999999997 0.2 AML other m 2023-01-28T15:26:49.20
IV.ESML.HHE. ML:1.8 0.00027400000000000005 1.26 AML other m 2023-01-28T15:26:49.95
IV.EMPL.HHE. ML:2.4 0.0010245 0.76 AML other m 2023-01-28T15:26:49.38
IV.LIBRI.HNN. ML:1.8 0.0001485 0.76 AML other m 2023-01-28T15:26:49.53
IV.EPOZ.HNN. ML:2.1 0.000317 1.16 AML other m 2023-01-28T15:26:49.28
IV.ENIC.HHE. ML:2.5 0.001017 0.56 AML other m 2023-01-28T15:26:49.89
IV.EPMN.HHN. ML:2.0 0.00022999999999999998 1.4 AML other m 2023-01-28T15:26:49.29
IV.EPOZ.HHN. ML:2.1 0.000315 0.5 AML other m 2023-01-28T15:26:51.26
IV.ESML.HHN. ML:1.8 0.0002595 1.12 AML other m 2023-01-28T15:26:51.07
1J.FX12.HHN.00 ML:1.5 0.000028450000000000004 1.58 AML other m 2023-01-28T15:26:51.96
1J.FX12.HHE.00 ML:1.2 0.00001455 0.44 AML other m 2023-01-28T15:26:51.07
IV.EPOZ.HNE. ML:2.2 0.0003845 0.42 AML other m 2023-01-28T15:26:52.43
IV.EPOZ.HHE. ML:2.1 0.000352 1.08 AML other m 2023-01-28T15:26:52.44
IV.AIO.HHE. ML:1.7 0.0001033 1.54 AML other m 2023-01-28T15:26:52.84
IV.HCRL.HHE. ML:1.9 0.0001555 0.86 AML other m 2023-01-28T15:26:53.44
IV.HVZN.HNN. ML:2.4 0.00048550000000000004 0.8 AML other m 2023-01-28T15:26:53.56
IV.HCRL.HHN. ML:2.0 0.0001965 0.64 AML other m 2023-01-28T15:26:55.45
IV.AIO.HHN. ML:1.7 0.0000958 0.5 AML other m 2023-01-28T15:26:55.86
IV.SSY.HHE. ML:2.6 0.0006525 0.74 AML other m 2023-01-28T15:26:56.86
IV.SSY.HHN. ML:2.9 0.00115 0.2 AML other m 2023-01-28T15:26:57.35
IV.SSY.HNE. ML:2.4 0.0003745 0.16 AML other m 2023-01-28T15:26:57.45
IV.HVZN.HNE. ML:2.1 0.0002445 0.52 AML other m 2023-01-28T15:26:57.36
IV.HVZN.HHN. ML:2.2 0.0002575 0.44 AML other m 2023-01-28T15:26:57.46
IV.SSY.HNN. ML:2.4 0.00037150000000000003 1.56 AML other m 2023-01-28T15:26:58.14
IV.HVZN.HHE. ML:2.2 0.000272 0.42 AML other m 2023-01-28T15:27:00.73
IV.MPNC.HHE. ML:2.0 0.000155 0.94 AML other m 2023-01-28T15:27:00.35
IV.HAVL.HHE. ML:2.2 0.000166 0.44 AML other m 2023-01-28T15:27:01.00
IV.HAVL.HHN. ML:2.3 0.00022600000000000002 1.32 AML other m 2023-01-28T15:27:01.85
IV.HMDC.HHN. ML:2.3 0.00022 0.74 AML other m 2023-01-28T15:27:02.16
IV.HMDC.HHE. ML:1.6 0.0000459 0.64 AML other m 2023-01-28T15:27:02.78
IV.MPNC.HHN. ML:2.0 0.00013550000000000001 0.32 AML other m 2023-01-28T15:27:04.30
1J.FX11.HHN. ML:2.0 0.0001375 0.92 AML other m 2023-01-28T15:27:18.99
1J.FX11.HHE. ML:2.0 0.000135 0.08 AML other m 2023-01-28T15:27:19.44
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
Waveforms Seismic signals in miniseed + resp format Download