Earthquake with magnitude of ML 1.7 on date 17-01-2021 and time 17:14:21 (Italy) in region 2 km SE Reitano (ME)

A magnitude ML 1.7 earthquake occured in region: 2 km SE Reitano (ME), on

  • 17-01-2021 16:14:21 (UTC)
  • 17-01-2021 17:14:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9580, 14.3560 at 20 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.

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
Caronia ME 11 3364 17038
Tusa ME 11 2925 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 1.7 2021-01-17
16:14:21
37.9582 14.3565 20 2021-07-12
16:54:56
Bollettino Sismico Italiano INGV 86375781
Reviewed
Rev100
ML 1.7 2021-01-17
16:14:21
37.9433 14.363 9 2021-01-17
16:27:52
Sala Sismica INGV-Roma 86333221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-17 16:14:21 ± 0.29
Latitude 37.9582 ± 0.0135
Longitude 14.3565 ± 0.0091
Depth (km) 20 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86375781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1394
Semi-minor axis of confidence ellipse (meter) 665
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 190
Circular confidence region, given by single value of horizontal uncertainty (meter) 1390.0
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 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.17177
Epicentral distance of station farthest from the epicenter (degree) 0.69068
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 86333221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-17 16:27:52

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 86375781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-04 15:32:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SCIAR.HHZ. 2021-01-17T16:14:38.89 0.3 undecidable manual S 268 53.2023 103 0.88 54
IV.MUCR.HHZ. 2021-01-17T16:14:36.56 0.3 undecidable manual S 78 46.2204 105 0.35 67
IV.AIO.HHZ. 2021-01-17T16:14:34.15 0.3 undecidable manual P 89 76.6677 98 -0.27 64
IV.GALF.HHZ. 2021-01-17T16:14:33.00 0.3 undecidable manual S 146 33.0447 113 0.11 72
IV.CSLB.HHZ. 2021-01-17T16:14:31.18 0.3 undecidable manual S 265 26.2515 120 -0.08 73
IV.PLLN.EHZ. 2021-01-17T16:14:30.18 0.3 undecidable manual S 282 19.0698 130 0.5 68
IV.SCIAR.HHZ. 2021-01-17T16:14:30.64 0.1 undecidable manual P 268 53.2023 103 -0.22 91
IV.PETRA.HHZ. 2021-01-17T16:14:30.74 0.6 undecidable manual S 237 25.2525 121 -0.3 46
IV.MUCR.HHZ. 2021-01-17T16:14:29.70 0.3 undecidable manual P 78 46.2204 105 -0.12 70
IV.RESU.HHZ. 2021-01-17T16:14:29.97 0.3 undecidable manual P 217 43.4232 107 0.57 63
IV.CAGR.HHE. 2021-01-17T16:14:29.40 0.3 undecidable manual P 161 39.3273 109 0.59 63
IV.GALF.HHZ. 2021-01-17T16:14:27.62 0.1 undecidable manual P 146 33.0447 113 -0.28 92
IV.PETRA.HHZ. 2021-01-17T16:14:26.25 0.1 negative manual P 237 25.2525 121 -0.58 87
IV.PLLN.EHZ. 2021-01-17T16:14:26.05 0.1 undecidable manual P 282 19.0698 130 0 100
IV.CSLB.HHZ. 2021-01-17T16:14:26.38 0.1 negative manual P 265 26.2515 120 -0.58 87
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLLN.EHN. ML:2.0 0.000644 0.92 AML other m 2021-01-17T16:14:31.57
IV.CSLB.HHE. ML:1.3 0.00009215 0.76 AML other m 2021-01-17T16:14:31.72
IV.PLLN.EHE. ML:1.8 0.0003635 0.62 AML other m 2021-01-17T16:14:31.54
IV.CSLB.HHN. ML:1.4 0.000124 0.64 AML other m 2021-01-17T16:14:31.22
IV.GALF.HHN. ML:2.0 0.00038950000000000003 0.64 AML other m 2021-01-17T16:14:33.55
IV.GALF.HHE. ML:2.0 0.0004195 1.12 AML other m 2021-01-17T16:14:34.83
IV.PETRA.HHE. ML:1.7 0.00023299999999999997 0.68 AML other m 2021-01-17T16:14:36.99
IV.MUCR.HHE. ML:1.8 0.00016999999999999999 1.22 AML other m 2021-01-17T16:14:39.11
IV.PETRA.HHN. ML:1.5 0.00016099999999999998 0.54 AML other m 2021-01-17T16:14:39.53
IV.MUCR.HHN. ML:1.7 0.00014250000000000002 0.82 AML other m 2021-01-17T16:14:40.19
IV.SCIAR.HHN. ML:1.6 0.00008041238 0.448 AML other m 2021-01-17T16:14:40.77
IV.SCIAR.HHE. ML:1.7 0.000113954445 0.4864 AML other m 2021-01-17T16:14:41.40
IV.AIO.HHN. ML:1.8 0.00008774999999999999 0.44 AML other m 2021-01-17T16:14:50.52
IV.AIO.HHE. ML:1.8 0.0000885 0.42 AML other m 2021-01-17T16:14:51.89
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