Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 17-09-2022 and time 00:31:52 (Italy) in region 6 km N Sortino (SR)

A magnitude ML 1.7 earthquake occured in region: 6 km N Sortino (SR), on

  • 16-09-2022 22:31:52 (UTC)
  • 17-09-2022 00:31:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.2130, 15.0220 at 25 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
Sortino SR 6 8690 8690
Carlentini SR 7 17798 26488
Lentini SR 8 24085 50573
Melilli SR 10 13621 64194
Ferla SR 13 2523 66717
Francofonte SR 13 12800 79517
Cassaro SR 14 821 80338
Solarino SR 15 8091 88429
Priolo Gargallo SR 16 12091 100520
Augusta SR 18 36305 136825
Buccheri SR 18 1999 138824
Scordia CT 18 17095 155919
Floridia SR 19 22762 178681
Buscemi SR 19 1051 179732
Palazzolo Acreide SR 20 8808 188540
Canicattini Bagni SR 20 7109 195649

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Siracusa (122291 inhabitants)
33 Km S of Catania (314555 inhabitants)
41 Km NE of Ragusa (73313 inhabitants)
46 Km NE of Modica (54633 inhabitants)
46 Km S of Acireale (52622 inhabitants)
52 Km NE of Vittoria (63339 inhabitants)
70 Km E of Gela (75827 inhabitants)
90 Km E of Caltanissetta (63360 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 2022-09-16
22:31:52		 37.2133 15.0217 25 2024-03-01
15:27:54		 Bollettino Sismico Italiano INGV 110047971
Reviewed
Rev100 		ML 1.8 2022-09-16
22:31:52		 37.2143 15.0172 25 2022-09-16
22:37:28		 Sala Sismica INGV-Roma 109799381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-16 22:31:52 ± 0.1
Latitude 37.2133 ± 0.0036
Longitude 15.0217 ± 0.0045
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 110047971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 420
Semi-minor axis of confidence ellipse (meter) 237
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 315
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.06925
Epicentral distance of station farthest from the epicenter (degree) 0.54409
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 109799381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-16 22:37:28

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 110047971
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-06 17:44:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CROCE.HHZ. 2022-09-16T22:32:11.44 0.6 undecidable manual S 226 60.3951 106 0.28 44
IV.ISPIC.EHZ. 2022-09-16T22:32:08.15 0.6 undecidable manual S 192 49.1175 110 -0.16 46
IV.HMDC.HHZ. 2022-09-16T22:32:04.97 0.6 undecidable manual S 217 35.2425 119 0.05 48
IV.HVZN.HHZ. 2022-09-16T22:32:03.09 0.6 undecidable manual S 262 27.3504 127 -0.05 49
IV.HAVL.HHZ. 2022-09-16T22:32:03.41 0.6 undecidable manual S 162 29.5482 124 -0.21 47
IV.CROCE.HHZ. 2022-09-16T22:32:03.11 0.1 undecidable manual P 226 60.3951 106 0.03 92
IV.HSRS.HNZ. 2022-09-16T22:32:02.13 0.6 undecidable manual S 127 22.1556 133 0.05 50
IV.ISPIC.EHZ. 2022-09-16T22:32:01.29 0.1 undecidable manual P 192 49.1175 110 -0.15 92
IV.HLNI.HHZ. 2022-09-16T22:32:01.26 0.6 undecidable manual S 319 19.9689 137 -0.41 46
IV.SSY.HHZ. 2022-09-16T22:32:00.05 0.6 undecidable manual S 143 7.6812 161 0.11 50
1J.FX02.HHZ. 2022-09-16T22:32:00.08 0.3 undecidable manual S 112 10.7781 154 -0.19 73
IV.HAGA.HHZ. 2022-09-16T22:32:00.74 0.6 undecidable manual S 56 14.1747 147 0.03 50
IV.HCRL.HHZ. 2022-09-16T22:32:00.17 0.6 undecidable manual S 7 7.7811 161 0.22 49
IT.LNT.HGZ. 2022-09-16T22:31:59.88 0.6 undecidable manual S 348 8.4804 159 -0.13 50
IV.HMDC.HHZ. 2022-09-16T22:31:59.49 0.1 undecidable manual P 217 35.2425 119 0.01 97
IV.HVZN.HHZ. 2022-09-16T22:31:58.48 0.3 undecidable manual P 262 27.3504 127 0.02 73
IV.HAVL.HHZ. 2022-09-16T22:31:58.77 0.1 undecidable manual P 162 29.5482 124 0.04 98
IV.HLNI.HHZ. 2022-09-16T22:31:57.49 0.1 undecidable manual P 319 19.9689 137 -0.11 98
IV.HSRS.HNZ. 2022-09-16T22:31:57.89 0.1 undecidable manual P 127 22.1556 133 0.04 99
IV.HAGA.HHZ. 2022-09-16T22:31:57.12 0.1 undecidable manual P 56 14.1747 147 0.07 100
1J.FX02.HHZ. 2022-09-16T22:31:56.72 0.1 undecidable manual P 112 10.7781 154 -0.08 100
IV.HCRL.HHZ. 2022-09-16T22:31:56.76 0.1 undecidable manual P 7 7.7811 161 0.15 99
IV.SSY.HHZ. 2022-09-16T22:31:56.78 0.1 positive manual P 143 7.6812 161 0.17 99
IT.LNT.HGZ. 2022-09-16T22:31:56.71 0.3 undecidable manual P 348 8.4804 159 0.06 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HCRL.HHN. ML:1.9 0.0004605 0.18 AML other m 2022-09-16T22:32:00.33
IV.SSY.HHN. ML:2.3 0.00125 1.2 AML other m 2022-09-16T22:32:00.93
IV.SSY.HNE. ML:1.7 0.000309 1.18 AML other m 2022-09-16T22:32:00.34
IV.SSY.HNN. ML:1.7 0.00033099999999999997 1.18 AML other m 2022-09-16T22:32:00.93
IV.HCRL.HHE. ML:2.1 0.0008365 0.16 AML other m 2022-09-16T22:32:00.35
IV.SSY.HHE. ML:2.0 0.0006285 0.14 AML other m 2022-09-16T22:32:00.78
IV.HLNI.HHE. ML:1.7 0.000246 0.1 AML other m 2022-09-16T22:32:01.98
IV.HLNI.HHN. ML:1.4 0.0001361 0.14 AML other m 2022-09-16T22:32:02.79
IV.HVZN.HHN. ML:1.7 0.0001855 1.24 AML other m 2022-09-16T22:32:04.22
IV.HVZN.HHE. ML:1.7 0.000203 1.6 AML other m 2022-09-16T22:32:04.19
IV.HMDC.HHE. ML:1.0 0.000029749999999999998 1.82 AML other m 2022-09-16T22:32:04.08
IV.HMDC.HHN. ML:1.5 0.00010714999999999999 1.2 AML other m 2022-09-16T22:32:06.24
IV.CROCE.HHE. ML:1.3 0.000036036185 0.8448 AML other m 2022-09-16T22:32:07.90
IV.ISPIC.EHE. ML:1.8 0.00016 0.22 AML other m 2022-09-16T22:32:08.37
IV.ISPIC.EHN. ML:1.7 0.00012179999999999999 0.5 AML other m 2022-09-16T22:32:08.37
IV.CROCE.HHN. ML:1.5 0.000061047725 0.1536 AML other m 2022-09-16T22:32:11.74
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