Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 03-10-2022 and time 19:20:33 (Italy) in region 2 km SW Arrone (TR)

A magnitude ML 1.3 earthquake occured in region: 2 km SW Arrone (TR), on

  • 03-10-2022 17:20:33 (UTC)
  • 03-10-2022 19:20:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5690, 12.7490 at 9 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
Arrone TR 2 2763 2763
Montefranco TR 4 1276 4039
Labro RI 6 374 4413
Ferentillo TR 7 1913 6326
Polino TR 8 233 6559
Colli sul Velino RI 8 533 7092
Morro Reatino RI 8 373 7465
Terni TR 8 111501 118966
Stroncone TR 11 4917 123883
Rivodutri RI 11 1253 125136
Greccio RI 13 1558 126694
Poggio Bustone RI 14 2055 128749
Cantalice RI 17 2755 131504
San Gemini TR 17 5018 136522
Scheggino PG 17 461 136983
Contigliano RI 18 3783 140766
Leonessa RI 18 2435 143201
Configni RI 18 633 143834
Spoleto PG 19 38218 182052
Cottanello RI 19 563 182615
Monteleone di Spoleto PG 19 599 183214
Sant'Anatolia di Narco PG 20 564 183778
Narni TR 20 19785 203563

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km E of Terni (111501 inhabitants)
43 Km S of Foligno (57155 inhabitants)
55 Km E of Viterbo (67173 inhabitants)
59 Km W of L'Aquila (69753 inhabitants)
63 Km N of Guidonia Montecelio (88673 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
67 Km N of Tivoli (56533 inhabitants)
78 Km N of Roma (2864731 inhabitants)
79 Km W of Teramo (54892 inhabitants)
95 Km NE of Civitavecchia (52991 inhabitants)
98 Km NE of Fiumicino (78395 inhabitants)
98 Km N of Velletri (53303 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 1.3 2022-10-03
17:20:33		 42.5693 12.7492 9 2024-03-01
15:28:22		 Bollettino Sismico Italiano INGV 116573221
Reviewed
Rev100 		ML 1.3 2022-10-03
17:20:33		 42.5633 12.75 9 2022-10-03
17:27:02		 Sala Sismica INGV-Roma 110460161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-10-03 17:20:33 ± 0.12
Latitude 42.5693 ± 0.0072
Longitude 12.7492 ± 0.0061
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116573221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 856
Semi-minor axis of confidence ellipse (meter) 523
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 195
Circular confidence region, given by single value of horizontal uncertainty (meter) 860.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 188
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.61963
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 116573221
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-21 14:08:43

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 110460161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-10-03 17:27:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSNT.HHZ. 2022-10-03T17:21:24.10 3.0 undecidable manual Sn 0.93 0
IV.SIRI.HNZ. 2022-10-03T17:21:21.92 3.0 undecidable manual Pg 1.03 0
IV.PII.HHZ. 2022-10-03T17:21:12.54 3.0 positive manual Pg 3.5 0
IV.CSP1.EHZ. 2022-10-03T17:20:55.79 0.6 undecidable manual S 32 68.7756 50 0.59 40
IV.MML1.EHZ. 2022-10-03T17:20:53.92 0.6 undecidable manual S 17 62.9925 50 0.26 44
IV.ASSB.HHZ. 2022-10-03T17:20:51.17 0.6 undecidable manual S 352 53.0025 50 0.19 46
IV.CESI.HHZ. 2022-10-03T17:20:50.04 0.6 undecidable manual S 15 49.9167 50 -0.13 47
IV.RM33.EHZ. 2022-10-03T17:20:47.08 0.6 undecidable manual S 100 38.628 50 -0.07 48
IV.CSP1.EHZ. 2022-10-03T17:20:46.54 0.3 undecidable manual P 32 68.7756 50 0.33 65
IV.MML1.EHZ. 2022-10-03T17:20:45.00 0.3 undecidable manual P 17 62.9925 50 -0.32 66
IV.CESI.HHZ. 2022-10-03T17:20:43.07 0.1 undecidable manual P 15 49.9167 50 -0.23 91
IV.ASSB.HHZ. 2022-10-03T17:20:43.17 0.3 undecidable manual P 352 53.0025 50 -0.6 62
IV.SMA1.EHZ. 2022-10-03T17:20:43.27 0.3 undecidable manual P 82 48.3183 50 0.21 69
IV.LNSS.HHZ. 2022-10-03T17:20:42.51 0.6 undecidable manual S 81 24.0537 111 -0.33 47
IV.RM33.EHZ. 2022-10-03T17:20:41.43 0.3 undecidable manual P 100 38.628 50 -0.13 71
IV.GAVE.EHZ. 2022-10-03T17:20:40.72 0.6 undecidable manual S 41 18.0708 117 -0.2 49
IV.LNSS.HHZ. 2022-10-03T17:20:39.12 0.1 undecidable manual P 81 24.0537 111 0.05 99
IV.CESX.HHZ. 2022-10-03T17:20:39.48 0.6 undecidable manual S 288 13.9749 123 -0.2 49
IV.GAVE.EHZ. 2022-10-03T17:20:38.13 0.1 undecidable manual P 41 18.0708 117 0.17 98
IV.ARRO.EHZ. 2022-10-03T17:20:37.04 0.3 undecidable manual S 51 1.6983 169 -0.06 77
IV.CESX.HHZ. 2022-10-03T17:20:37.44 0.1 undecidable manual P 288 13.9749 123 0.19 98
IV.ARRO.EHZ. 2022-10-03T17:20:35.96 0.1 undecidable manual P 51 1.6983 169 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.8 0.00021349999999999999 1.22 AML other m 2022-10-03T17:20:39.61
IV.CESX.HHN. ML:1.1 0.000128 0.34 AML other m 2022-10-03T17:20:39.77
IV.CESX.HHE. ML:1.0 0.00011649999999999999 0.28 AML other m 2022-10-03T17:20:39.78
IV.NRCA.HHE. ML:1.9 0.00024375 0.76 AML other m 2022-10-03T17:20:39.58
IV.GAVE.EHE. ML:1.2 0.00014800000000000002 0.28 AML other m 2022-10-03T17:20:42.10
IV.GAVE.EHN. ML:1.1 0.0001155 0.2 AML other m 2022-10-03T17:20:42.31
IV.LNSS.HHN. ML:1.2 0.00010250000000000001 0.24 AML other m 2022-10-03T17:20:43.88
IV.LNSS.HHE. ML:1.0 0.00006254999999999999 1.64 AML other m 2022-10-03T17:20:46.86
IV.CESI.HHN. ML:1.4 0.00007165000000000001 0.1 AML other m 2022-10-03T17:20:50.52
IV.CESI.HHE. ML:1.4 0.0000607 0.56 AML other m 2022-10-03T17:20:51.38
IV.MML1.EHE. ML:1.3 0.00003715 0.5 AML other m 2022-10-03T17:20:54.99
IV.MML1.EHN. ML:1.2 0.000029049999999999998 0.22 AML other m 2022-10-03T17:20:55.28
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