Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 16-09-2017 and time 18:08:12 (UTC) in region 4 km NW San Teodoro (ME)

A magnitude ML 1.6 earthquake occured in region: 4 km NW San Teodoro (ME), on

  • 16-09-2017 18:08:12 (UTC)
  • 16-09-2017 20:08:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8770, 14.6730 at 37 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
San Teodoro ME 4 1403 1403
Cesarò ME 5 2439 3842
Troina EN 12 9373 13215
Maniace CT 12 3765 16980
Cerami EN 16 2006 18986
Alcara li Fusi ME 16 1980 20966
San Fratello ME 17 3707 24673
Bronte CT 17 19172 43845
Capizzi ME 17 3176 47021
Maletto CT 18 3920 50941
Longi ME 18 1473 52414
Militello Rosmarino ME 19 1324 53738
Galati Mamertino ME 20 2627 56365

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km NW of Acireale (52622 inhabitants)
55 Km NW of Catania (314555 inhabitants)
69 Km NE of Caltanissetta (63360 inhabitants)
85 Km W of Messina (238439 inhabitants)
89 Km W of Reggio di Calabria (183035 inhabitants)
98 Km NE 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 1.6 2017-09-16
18:08:12		 37.8767 14.6727 37 2018-09-04
09:06:01		 Bollettino Sismico Italiano INGV 58126281
Reviewed
Rev100 		ML 1.4 2017-09-16
18:08:12		 37.8552 14.7335 31 2017-09-16
18:20:35		 Sala Sismica INGV-Roma 50157591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-09-16 18:08:12 ± 0.3
Latitude 37.8767 ± 0.0162
Longitude 14.6727 ± 0.0330
Depth (km) 37 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 58126281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2840
Semi-minor axis of confidence ellipse (meter) 1585
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 272
Circular confidence region, given by single value of horizontal uncertainty (meter) 2840.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.05666
Epicentral distance of station farthest from the epicenter (degree) 0.78601
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 50157591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-09-16 18:20:35

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 58126281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-06-25 13:53:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2017-09-16T18:08:27.16 0.3 undecidable manual P 156 87.246 54 -0.2 66
IV.EPZF.HHN. 2017-09-16T18:08:24.82 0.6 undecidable manual S 110 17.1717 153 0.89 42
IV.GALF.HHZ. 2017-09-16T18:08:24.36 0.6 undecidable manual S 207 20.6682 148 -0.02 50
IV.MUCR.HHE. 2017-09-16T18:08:24.08 0.6 undecidable manual S 44 25.4523 142 -1.04 35
IV.MSFR.HHZ. 2017-09-16T18:08:24.62 0.6 undecidable manual S 338 18.87 151 0.49 46
IV.IVPL.HHZ. 2017-09-16T18:08:24.81 0.3 undecidable manual P 26 61.5939 116 0.76 56
IV.HLNI.HHZ. 2017-09-16T18:08:23.99 0.3 undecidable manual P 163 61.1943 117 0 71
IV.MNO.SHE. 2017-09-16T18:08:22.45 0.6 undecidable manual S 18 6.2937 169 -0.53 45
IV.EPZF.HHN. 2017-09-16T18:08:19.29 0.1 undecidable manual P 110 17.1717 153 0.32 97
IV.GALF.HHZ. 2017-09-16T18:08:19.35 0.3 undecidable manual P 207 20.6682 148 0.12 75
IV.MUCR.HHE. 2017-09-16T18:08:19.39 0.1 undecidable manual P 44 25.4523 142 -0.27 96
IV.MSFR.HHZ. 2017-09-16T18:08:18.91 0.1 positive manual P 338 18.87 151 -0.18 100
IV.MNO.SHE. 2017-09-16T18:08:18.21 0.3 undecidable manual P 18 6.2937 169 -0.22 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:1.4 0.0000919 0.64 AML other m 2017-09-16T18:08:25.33
IV.MSFR.HHN. ML:1.2 0.00006214999999999999 1 AML other m 2017-09-16T18:08:25.03
IV.MSFR.HHE. ML:1.2 0.00005205 0.34 AML other m 2017-09-16T18:08:25.67
IV.MEU.SHE. ML:0.0 0.0001145 0.24 AML other m 2017-09-16T18:08:28.50
IV.GALF.HHN. ML:1.4 0.0000969 1.46 AML other m 2017-09-16T18:08:28.99
IV.HLNI.HHN. ML:1.9 0.000142 1.38 AML other m 2017-09-16T18:08:33.27
IV.HLNI.HHE. ML:1.7 0.0000833 0.78 AML other m 2017-09-16T18:08:34.57
IV.SSY.HHE. ML:2.1 0.000124 1.12 AML other m 2017-09-16T18:08:39.31
IV.SSY.HHN. ML:2.3 0.00022999999999999998 0.38 AML other m 2017-09-16T18:08:40.37
IV.MEU.SHN. ML:0.0 0.0001235 0.88 AML other m 2017-09-16T18:08:40.26
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