Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 17-01-2021 and time 17:10:53 (UTC) in region 2 km S Reitano (ME)

A magnitude ML 2.3 earthquake occured in region: 2 km S Reitano (ME), on

  • 17-01-2021 17:10:53 (UTC)
  • 17-01-2021 18:10:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9520, 14.3430 at 23 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
Reitano ME 3 806 806
Mistretta ME 3 4791 5597
Pettineo ME 5 1350 6947
Motta d'Affermo ME 5 739 7686
Santo Stefano di Camastra ME 7 4694 12380
Castel di Lucio ME 8 1294 13674
Tusa ME 10 2925 16599
Caronia ME 12 3364 19963
San Mauro Castelverde PA 14 1701 21664
Capizzi ME 16 3176 24840
Pollina PA 18 2974 27814
Geraci Siculo PA 19 1945 29759

Municipalities with at least 50000 inhabitants

An earthquake occurred to
57 Km NE of Caltanissetta (63360 inhabitants)
74 Km E of Bagheria (55387 inhabitants)
82 Km W of Acireale (52622 inhabitants)
82 Km NW of Catania (314555 inhabitants)
88 Km E of Palermo (674435 inhabitants)
98 Km NE of Agrigento (59770 inhabitants)
99 Km N of Gela (75827 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 2.3 2021-01-17
17:10:53		 37.9518 14.3432 23 2021-07-12
16:54:56		 Bollettino Sismico Italiano INGV 86375941
Reviewed
Rev100 		ML 2.3 2021-01-17
17:10:53		 37.9563 14.3387 25 2021-01-17
17:28:07		 Sala Sismica INGV-Roma 86334161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-17 17:10:53 ± 0.16
Latitude 37.9518 ± 0.0126
Longitude 14.3432 ± 0.0068
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86375941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1419
Semi-minor axis of confidence ellipse (meter) 309
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 183
Circular confidence region, given by single value of horizontal uncertainty (meter) 1420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.81838
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 86334161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-17 17:28:07

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 86375941
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-19 11:07:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIZZ.HHZ. 2021-01-17T17:11:52.08 3.0 undecidable manual Sg 1.43 0
IV.HLNI.HHZ. 2021-01-17T17:11:18.48 0.3 undecidable manual S 145 81.4518 100 0.44 62
IV.SCIAR.HHZ. 2021-01-17T17:11:10.77 0.3 undecidable manual S 269 52.0035 107 0.4 66
IV.MUCR.HHZ. 2021-01-17T17:11:09.28 0.6 undecidable manual S 78 47.5191 109 0.06 47
IV.MPNC.HHZ. 2021-01-17T17:11:08.96 0.1 undecidable manual P 76 90.8424 99 -0.15 87
IV.AIO.HHZ. 2021-01-17T17:11:07.19 0.1 undecidable manual P 88 77.8665 100 0.05 89
IV.HLNI.HHZ. 2021-01-17T17:11:06.84 0.3 undecidable manual P 145 81.4518 100 -0.85 52
IV.GALF.HHZ. 2021-01-17T17:11:05.67 0.3 undecidable manual S 144 33.1446 118 -0.02 73
IV.CSLB.HHZ. 2021-01-17T17:11:03.53 0.6 undecidable manual S 266 25.0527 126 -0.32 47
IV.PLLN.EHZ. 2021-01-17T17:11:03.20 0.3 undecidable manual S 285 18.0708 137 0.74 61
IV.PETRA.HHZ. 2021-01-17T17:11:03.23 0.3 undecidable manual S 237 23.9538 128 -0.39 69
IV.SCIAR.HHZ. 2021-01-17T17:11:03.44 0.1 undecidable manual P 269 52.0035 107 0.18 92
IV.EPZF.HHZ. 2021-01-17T17:11:02.89 0.3 undecidable manual P 107 47.1195 109 0.33 67
IV.MUCR.HHZ. 2021-01-17T17:11:02.43 0.1 undecidable manual P 78 47.5191 109 -0.17 94
IV.RESU.HHZ. 2021-01-17T17:11:02.06 0.1 undecidable manual P 217 42.1245 111 0.23 93
IV.CAGR.HHZ. 2021-01-17T17:11:01.82 0.1 undecidable manual P 159 39.0276 113 0.43 90
IV.GALF.HHZ. 2021-01-17T17:11:00.42 0.1 undecidable manual P 144 33.1446 118 -0.14 95
IV.PETRA.HHZ. 2021-01-17T17:10:59.07 0.1 undecidable manual P 237 23.9538 128 -0.3 94
IV.CSLB.HHZ. 2021-01-17T17:10:59.14 0.1 undecidable manual P 266 25.0527 126 -0.36 93
IV.GIB.HHE. 2021-01-17T17:10:59.53 0.6 undecidable manual P 279 28.0497 123 -0.36 46
IV.PLLN.EHZ. 2021-01-17T17:10:58.73 0.1 undecidable manual P 285 18.0708 137 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHE. ML:2.5 0.0013399999999999998 1.28 AML other m 2021-01-17T17:11:05.80
IV.PETRA.HHN. ML:2.4 0.00115 0.32 AML other m 2021-01-17T17:11:05.01
IV.GALF.HNN. ML:1.9 0.000297 0.62 AML other m 2021-01-17T17:11:06.75
IV.GALF.HHN. ML:2.7 0.0017549999999999998 0.62 AML other m 2021-01-17T17:11:06.75
IV.GALF.HHE. ML:2.9 0.002745 0.56 AML other m 2021-01-17T17:11:07.09
IV.GALF.HNE. ML:1.9 0.00028149999999999996 0.56 AML other m 2021-01-17T17:11:08.37
IV.MUCR.HHN. ML:2.2 0.00041700000000000005 0.38 AML other m 2021-01-17T17:11:12.23
IV.MUCR.HHE. ML:2.3 0.000582 0.6 AML other m 2021-01-17T17:11:12.86
IV.CAGR.HHN. ML:2.4 0.000737 0.46 AML other m 2021-01-17T17:11:13.36
IV.CAGR.HHE. ML:2.4 0.0007124999999999999 0.48 AML other m 2021-01-17T17:11:13.33
IV.SCIAR.HHE. ML:2.1 0.0002945 1.16 AML other m 2021-01-17T17:11:13.41
IV.SCIAR.HNE. ML:2.2 0.000365 1.16 AML other m 2021-01-17T17:11:13.99
IV.EPZF.HHE. ML:2.3 0.00046399999999999995 1.22 AML other m 2021-01-17T17:11:15.84
IV.SCIAR.HHN. ML:2.1 0.000262 1.22 AML other m 2021-01-17T17:11:17.80
IV.SCIAR.HNN. ML:2.1 0.00030649999999999997 0.68 AML other m 2021-01-17T17:11:17.54
IV.EPZF.HHN. ML:2.3 0.000506 1.18 AML other m 2021-01-17T17:11:19.62
IV.HLNI.HHE. ML:2.0 0.00014150000000000002 0.62 AML other m 2021-01-17T17:11:22.33
IV.AIO.HHN. ML:2.2 0.0002185 1.32 AML other m 2021-01-17T17:11:22.13
IV.AIO.HHE. ML:2.5 0.000428 0.52 AML other m 2021-01-17T17:11:22.86
IV.HLNI.HHN. ML:2.0 0.0001225 0.6 AML other m 2021-01-17T17:11:24.38
IV.MPNC.HHE. ML:2.3 0.00023199999999999997 1.58 AML other m 2021-01-17T17:11:28.92
IV.MPNC.HHN. ML:2.4 0.000246 0.48 AML other m 2021-01-17T17:11:34.71
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