Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 16-10-2022 and time 13:25:59 (Italy) in region 4 km NW Contigliano (RI)

A magnitude ML 1.0 earthquake occured in region: 4 km NW Contigliano (RI), on

  • 16-10-2022 11:25:59 (UTC)
  • 16-10-2022 13:25:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4290, 12.7260 at 10 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
Contigliano RI 4 3783 3783
Cottanello RI 4 563 4346
Greccio RI 5 1558 5904
Montasola RI 6 395 6299
Configni RI 7 633 6932
Vacone RI 9 256 7188
Colli sul Velino RI 9 533 7721
Stroncone TR 9 4917 12638
Casperia RI 11 1246 13884
Torri in Sabina RI 11 1256 15140
Rieti RI 12 47698 62838
Monte San Giovanni in Sabina RI 12 714 63552
Roccantica RI 12 563 64115
Labro RI 13 374 64489
Montebuono RI 13 883 65372
Calvi dell'Umbria TR 13 1856 67228
Tarano RI 13 1444 68672
Morro Reatino RI 14 373 69045
Rivodutri RI 15 1253 70298
Selci RI 15 1106 71404
Cantalupo in Sabina RI 15 1685 73089
Poggio Catino RI 15 1341 74430
Cantalice RI 15 2755 77185
Poggio Bustone RI 16 2055 79240
Terni TR 16 111501 190741
Collevecchio RI 18 1577 192318
Arrone TR 18 2763 195081
Montenero Sabino RI 18 299 195380
Forano RI 18 3179 198559
Belmonte in Sabina RI 18 636 199195
Poggio Mirteto RI 19 6315 205510
Cittaducale RI 19 6828 212338
Salisano RI 19 567 212905
Montefranco TR 19 1276 214181
Stimigliano RI 20 2328 216509
Polino TR 20 233 216742

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km SE of Terni (111501 inhabitants)
48 Km N of Guidonia Montecelio (88673 inhabitants)
51 Km E of Viterbo (67173 inhabitants)
52 Km N of Tivoli (56533 inhabitants)
56 Km W of L'Aquila (69753 inhabitants)
59 Km S of Foligno (57155 inhabitants)
63 Km NE of Roma (2864731 inhabitants)
80 Km SE of Perugia (166134 inhabitants)
83 Km N of Velletri (53303 inhabitants)
83 Km NE of Fiumicino (78395 inhabitants)
84 Km W of Teramo (54892 inhabitants)
85 Km E of Civitavecchia (52991 inhabitants)
86 Km N of Pomezia (62966 inhabitants)
93 Km N of Aprilia (73446 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 1.0 2022-10-16
11:25:59		 42.4287 12.7265 10 2024-03-01
15:27:56		 Bollettino Sismico Italiano INGV 110889971
Reviewed
Rev100 		ML 1.3 2022-10-16
11:25:59		 42.4277 12.718 11 2022-10-16
11:35:03		 Sala Sismica INGV-Roma 110878991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-10-16 11:25:59 ± 0.08
Latitude 42.4287 ± 0.0036
Longitude 12.7265 ± 0.0085
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 110889971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 678
Semi-minor axis of confidence ellipse (meter) 212
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) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.15288
Epicentral distance of station farthest from the epicenter (degree) 0.61604
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 110889971
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-11 11:23:08

ML:1.3

Field Value
Value 1.3
Uncertainty 0.7
Num. used stations 10
Type of magnitude ML
Reference to an origin 110878991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-10-16 11:35:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MC2.EHZ. 2022-10-16T11:26:20.40 1.0 undecidable manual S 35 65.49 50 0.63 21
IV.CESI.HHZ. 2022-10-16T11:26:20.46 0.6 undecidable manual S 13 65.5899 50 0.68 40
IV.CERT.HNE. 2022-10-16T11:26:17.35 0.3 undecidable manual S 158 57.1983 50 -0.19 70
IV.SMA1.EHN. 2022-10-16T11:26:17.55 0.6 undecidable manual S 66 54.6009 50 0.7 41
IV.NRCA.HHZ. 2022-10-16T11:26:16.88 0.3 undecidable manual S 35 54.9006 50 -0.07 72
IV.RM33.EHZ. 2022-10-16T11:26:13.28 0.3 undecidable manual S 77 40.9257 50 0.08 74
IV.CESI.HHZ. 2022-10-16T11:26:11.14 0.1 positive manual P 13 65.5899 50 -0.08 95
IV.MC2.EHZ. 2022-10-16T11:26:11.53 1.0 undecidable manual P 35 65.49 50 0.32 23
IV.ASSB.HHN. 2022-10-16T11:26:11.43 0.6 undecidable manual P 355 68.376 50 -0.22 46
IV.FIAM.HNN. 2022-10-16T11:26:11.72 0.3 undecidable manual S 119 36.6411 50 -0.34 71
IV.GAVE.EHZ. 2022-10-16T11:26:10.60 0.3 undecidable manual S 25 32.3454 50 -0.3 72
IV.LNSS.HHZ. 2022-10-16T11:26:10.57 0.3 undecidable manual S 53 32.1456 50 -0.29 72
IV.SRES.HHN. 2022-10-16T11:26:10.19 0.6 undecidable manual S 220 27.6501 50 0.52 46
IV.SMA1.EHN. 2022-10-16T11:26:09.58 0.6 undecidable manual P 66 54.6009 50 0.05 49
IV.CERT.HNE. 2022-10-16T11:26:09.73 0.6 undecidable manual P 158 57.1983 50 -0.2 47
IV.NRCA.HHZ. 2022-10-16T11:26:09.10 0.3 undecidable manual P 35 54.9006 50 -0.49 66
IT.MMP1.HGE. 2022-10-16T11:26:07.09 0.3 undecidable manual S 175 19.9689 116 -0.16 76
IV.RM33.EHZ. 2022-10-16T11:26:07.68 0.3 undecidable manual P 77 40.9257 50 0.25 72
IV.CESX.HHE. 2022-10-16T11:26:07.94 0.6 undecidable manual S 330 22.9548 113 -0.26 49
IV.FIAM.HNN. 2022-10-16T11:26:07.15 0.3 undecidable manual P 119 36.6411 50 0.38 70
IV.ARRO.EHZ. 2022-10-16T11:26:06.53 0.3 undecidable manual S 11 16.9719 120 0.19 76
IV.SRES.HHN. 2022-10-16T11:26:05.67 1.0 undecidable manual P 220 27.6501 50 0.28 24
IV.LNSS.HHZ. 2022-10-16T11:26:05.96 0.3 undecidable manual P 53 32.1456 50 -0.11 75
IV.GAVE.EHZ. 2022-10-16T11:26:05.98 0.1 positive manual P 25 32.3454 50 -0.12 100
IV.CESX.HHE. 2022-10-16T11:26:04.27 0.3 undecidable manual P 330 22.9548 113 -0.27 74
IT.MMP1.HGE. 2022-10-16T11:26:04.12 0.3 undecidable manual P 175 19.9689 116 0.14 76
IV.ARRO.EHZ. 2022-10-16T11:26:03.69 0.1 positive manual P 11 16.9719 120 0.23 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:0.8 0.00005015 0.74 AML other m 2022-10-16T11:26:06.67
IV.ARRO.EHE. ML:0.7 0.000040499999999999995 0.16 AML other m 2022-10-16T11:26:08.11
IV.GAVE.EHN. ML:1.0 0.000051000000000000006 0.64 AML other m 2022-10-16T11:26:10.58
IV.LNSS.HHE. ML:1.1 0.00005755 0.8 AML other m 2022-10-16T11:26:11.49
IV.LNSS.HHN. ML:1.2 0.00007294999999999998 0.14 AML other m 2022-10-16T11:26:11.63
IV.GAVE.EHE. ML:1.1 0.0000544 0.44 AML other m 2022-10-16T11:26:11.43
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