Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 17-01-2021 and time 18:11:36 (Italy) in region 2 km SE Reitano (ME)

A magnitude ML 1.9 earthquake occured in region: 2 km SE Reitano (ME), on

  • 17-01-2021 17:11:36 (UTC)
  • 17-01-2021 18:11:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9590, 14.3540 at 22 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 2 806 806
Mistretta ME 3 4791 5597
Motta d'Affermo ME 5 739 6336
Pettineo ME 6 1350 7686
Santo Stefano di Camastra ME 7 4694 12380
Castel di Lucio ME 9 1294 13674
Tusa ME 11 2925 16599
Caronia ME 11 3364 19963
San Mauro Castelverde PA 15 1701 21664
Capizzi ME 16 3176 24840
Pollina PA 19 2974 27814

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km NE of Caltanissetta (63360 inhabitants)
75 Km E of Bagheria (55387 inhabitants)
81 Km NW of Acireale (52622 inhabitants)
82 Km NW of Catania (314555 inhabitants)
89 Km E of Palermo (674435 inhabitants)
99 Km NE of Agrigento (59770 inhabitants)
100 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 1.9 2021-01-17
17:11:36		 37.959 14.3537 23 2021-07-12
16:54:56		 Bollettino Sismico Italiano INGV 86376031
Reviewed
Rev100 		ML 2.0 2021-01-17
17:11:36		 37.9648 14.3537 19 2021-01-17
17:21:09		 Sala Sismica INGV-Roma 86334151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-17 17:11:36 ± 0.24
Latitude 37.9590 ± 0.0153
Longitude 14.3537 ± 0.0114
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 86376031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1541
Semi-minor axis of confidence ellipse (meter) 1058
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 1540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.16907
Epicentral distance of station farthest from the epicenter (degree) 0.69338
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 86376031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-04 15:36:52

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 86334151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-17 17:21:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SCIAR.HHZ. 2021-01-17T17:11:54.15 0.3 undecidable manual S 268 52.9026 106 0.79 58
IV.MUCR.HHZ. 2021-01-17T17:11:52.19 0.6 undecidable manual S 78 46.4202 108 0.49 44
IV.AIO.HHZ. 2021-01-17T17:11:49.91 0.3 undecidable manual P 89 76.9674 100 0.12 68
IV.GALF.HHZ. 2021-01-17T17:11:48.47 0.6 undecidable manual S 146 33.2445 117 0.02 50
IV.PETRA.HHE. 2021-01-17T17:11:46.43 0.3 undecidable manual S 236 25.1526 125 -0.15 73
IV.SCIAR.HHZ. 2021-01-17T17:11:46.14 0.1 undecidable manual P 268 52.9026 106 -0.03 94
IV.CSLB.HHZ. 2021-01-17T17:11:46.58 0.6 undecidable manual S 265 25.9518 124 -0.19 48
IV.RESU.HHZ. 2021-01-17T17:11:45.11 0.6 undecidable manual P 217 43.3233 110 0.34 46
IV.PLLN.EHZ. 2021-01-17T17:11:45.61 0.3 undecidable manual S 282 18.7701 135 0.33 71
IV.MUCR.HHZ. 2021-01-17T17:11:45.28 0.3 undecidable manual P 78 46.4202 108 0.06 73
IV.CAGR.HHE. 2021-01-17T17:11:44.69 0.3 undecidable manual P 161 39.5271 112 0.47 67
IV.GALF.HHZ. 2021-01-17T17:11:43.05 0.1 undecidable manual P 146 33.2445 117 -0.29 93
IV.GIB.HHE. 2021-01-17T17:11:42.50 0.3 undecidable manual P 277 28.8489 121 -0.24 71
IV.PETRA.HHE. 2021-01-17T17:11:41.82 0.1 undecidable manual P 236 25.1526 125 -0.44 91
IV.CSLB.HHZ. 2021-01-17T17:11:41.93 0.1 negative manual P 265 25.9518 124 -0.44 91
IV.PLLN.EHZ. 2021-01-17T17:11:41.60 0.1 undecidable manual P 282 18.7701 135 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHE. ML:1.5 0.00013698050000000001 0.32 AML other m 2021-01-17T17:11:46.82
IV.PLLN.EHE. ML:2.3 0.00105679755 0.6144 AML other m 2021-01-17T17:11:47.08
IV.PLLN.EHN. ML:2.4 0.0012159719999999998 0.3584 AML other m 2021-01-17T17:11:47.35
IV.CSLB.HHN. ML:1.7 0.00021450000000000004 0.36 AML other m 2021-01-17T17:11:47.41
IV.SCIAR.HNE. ML:1.9 0.000190803 0.6016 AML other m 2021-01-17T17:11:49.13
IV.GALF.HHE. ML:2.5 0.001176049 0.4992 AML other m 2021-01-17T17:11:49.77
IV.GALF.HNE. ML:1.6 0.00014904565 0.4864 AML other m 2021-01-17T17:11:49.79
IV.GALF.HNN. ML:1.5 0.0001235346 0.6656 AML other m 2021-01-17T17:11:54.00
IV.MUCR.HHN. ML:2.0 0.00023116534999999998 0.32 AML other m 2021-01-17T17:11:54.89
IV.MUCR.HHE. ML:2.1 0.00032499999999999993 0.48 AML other m 2021-01-17T17:11:55.46
IV.GALF.HHN. ML:2.3 0.0007879124500000001 0.384 AML other m 2021-01-17T17:11:55.61
IV.SCIAR.HHN. ML:1.8 0.0001484468 0.3584 AML other m 2021-01-17T17:11:56.70
IV.SCIAR.HNN. ML:1.9 0.00018733814999999997 0.3712 AML other m 2021-01-17T17:11:56.72
IV.SCIAR.HHE. ML:1.8 0.000129212445 0.4096 AML other m 2021-01-17T17:11:56.92
IV.AIO.HHE. ML:2.1 0.0001731789 0.512 AML other m 2021-01-17T17:12:05.48
IV.AIO.HHN. ML:1.8 0.00009336232999999999 0.3328 AML other m 2021-01-17T17:12:06.28
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