Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 07-10-2022 and time 22:03:19 (Italy) in region 4 km N Spoleto (PG)

A magnitude ML 1.6 earthquake occured in region: 4 km N Spoleto (PG), on

  • 07-10-2022 20:03:19 (UTC)
  • 07-10-2022 22:03:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7750, 12.7290 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
Spoleto PG 4 38218 38218
Campello sul Clitunno PG 7 2442 40660
Castel Ritaldi PG 7 3278 43938
Sant'Anatolia di Narco PG 10 564 44502
Scheggino PG 11 461 44963
Vallo di Nera PG 11 364 45327
Trevi PG 12 8469 53796
Giano dell'Umbria PG 14 3846 57642
Montefalco PG 15 5679 63321
Cerreto di Spoleto PG 16 1075 64396
Massa Martana PG 17 3770 68166
Acquasparta TR 18 4778 72944
Ferentillo TR 18 1913 74857
Poggiodomo PG 18 117 74974
Montefranco TR 20 1276 76250

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km S of Foligno (57155 inhabitants)
25 Km N of Terni (111501 inhabitants)
46 Km SE of Perugia (166134 inhabitants)
65 Km NE of Viterbo (67173 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
81 Km W of Teramo (54892 inhabitants)
86 Km N of Guidonia Montecelio (88673 inhabitants)
90 Km N of Tivoli (56533 inhabitants)
100 Km N of Roma (2864731 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 2022-10-07
20:03:19		 42.7747 12.7292 10 2024-03-01
15:28:23		 Bollettino Sismico Italiano INGV 116773791
Reviewed
Rev100 		ML 1.6 2022-10-07
20:03:19		 42.7787 12.7327 10 2022-10-07
20:11:21		 Sala Sismica INGV-Roma 110595591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-10-07 20:03:19 ± 0.05
Latitude 42.7747 ± 0.0027
Longitude 12.7292 ± 0.0049
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 116773791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 402
Semi-minor axis of confidence ellipse (meter) 283
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.84266
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 116773791
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-26 16:02:19

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 110595591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-10-07 20:11:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GSCL.HHZ. 2022-10-07T20:04:22.26 3.0 undecidable manual Sn -0.35 0
IV.GUMA.HHZ. 2022-10-07T20:03:38.38 0.6 undecidable manual S 57 58.6968 50 0.86 40
IV.MMO1.EHZ. 2022-10-07T20:03:35.52 0.6 undecidable manual S 74 50.5161 50 0.18 50
IV.CSP1.EHZ. 2022-10-07T20:03:35.94 0.6 undecidable manual S 48 52.2033 50 0.14 50
IV.NARO.HHZ. 2022-10-07T20:03:35.37 0.3 undecidable manual P 353 93.5397 50 0.23 69
IV.RM33.EHZ. 2022-10-07T20:03:35.23 0.6 undecidable manual S 126 49.4172 50 0.19 50
IV.PIEI.HHZ. 2022-10-07T20:03:34.08 0.3 undecidable manual P 350 85.8474 50 0.12 71
IV.ATCC.EHZ. 2022-10-07T20:03:34.52 0.6 undecidable manual S 351 46.1205 50 0.37 49
IV.MML1.EHZ. 2022-10-07T20:03:33.29 0.6 undecidable manual S 28 42.4242 50 0.11 52
IV.ARVD.HHZ. 2022-10-07T20:03:33.93 0.3 undecidable manual P 12 82.0512 50 0.56 65
IV.MC2.EHZ. 2022-10-07T20:03:32.85 0.6 undecidable manual S 68 40.3263 50 0.22 51
IV.SSFR.HHZ. 2022-10-07T20:03:32.30 0.3 undecidable manual P 3 73.4709 50 0.24 71
IV.FDMO.HHZ. 2022-10-07T20:03:32.65 0.6 undecidable manual S 45 41.1255 50 -0.18 51
IV.EL6.EHZ. 2022-10-07T20:03:31.16 0.3 undecidable manual P 26 68.5758 50 -0.13 74
IV.SRES.HHZ. 2022-10-07T20:03:30.36 0.3 undecidable manual P 197 62.2932 50 0.04 76
IV.NRCA.HHZ. 2022-10-07T20:03:30.11 0.6 undecidable manual S 78 32.0457 50 -0.29 51
IV.LNSS.HHZ. 2022-10-07T20:03:30.28 0.3 undecidable manual S 127 31.746 50 -0.05 80
IV.FIAM.HHZ. 2022-10-07T20:03:30.48 0.3 undecidable manual P 150 64.5909 50 -0.19 73
IV.GUMA.HHZ. 2022-10-07T20:03:30.09 0.3 undecidable manual P 57 58.6968 50 0.32 72
IV.MF5.EHZ. 2022-10-07T20:03:30.94 0.6 undecidable manual P 68 63.8916 50 0.36 47
IV.ASSB.HHZ. 2022-10-07T20:03:29.84 0.3 undecidable manual S 349 30.2475 50 -0.09 79
IV.MURB.HHZ. 2022-10-07T20:03:29.32 0.3 undecidable manual P 343 56.5989 50 -0.13 75
IV.MGAB.HHZ. 2022-10-07T20:03:29.15 0.6 undecidable manual P 287 52.503 50 0.34 48
IV.CESI.HHZ. 2022-10-07T20:03:29.36 0.3 undecidable manual S 29 29.2485 50 -0.3 76
IV.RM33.EHZ. 2022-10-07T20:03:28.21 0.3 undecidable manual P 126 49.4172 50 -0.12 76
IV.MMO1.EHZ. 2022-10-07T20:03:28.32 0.1 undecidable manual P 74 50.5161 50 -0.19 100
IV.ARRO.EHZ. 2022-10-07T20:03:28.02 0.3 undecidable manual S 172 21.867 115 0.48 74
IV.CSP1.EHZ. 2022-10-07T20:03:28.65 0.3 undecidable manual P 48 52.2033 50 -0.13 76
IV.SMA1.EHZ. 2022-10-07T20:03:28.89 0.3 undecidable manual P 108 51.9036 50 0.16 75
IV.CESX.HHZ. 2022-10-07T20:03:27.34 0.3 undecidable manual S 212 21.7671 115 -0.17 79
IV.MML1.EHZ. 2022-10-07T20:03:27.07 0.3 undecidable manual P 28 42.4242 50 -0.19 76
IV.ATCC.EHZ. 2022-10-07T20:03:27.76 0.3 undecidable manual P 351 46.1205 50 -0.07 78
IV.FDMO.HHZ. 2022-10-07T20:03:26.78 0.3 undecidable manual P 45 41.1255 50 -0.28 75
IV.MC2.EHZ. 2022-10-07T20:03:26.90 0.3 undecidable manual P 68 40.3263 50 -0.05 79
IV.GAVE.EHZ. 2022-10-07T20:03:25.79 0.3 undecidable manual S 124 16.2726 122 -0.04 82
IV.ASSB.HHZ. 2022-10-07T20:03:25.16 0.3 undecidable manual P 349 30.2475 50 -0.23 77
IV.NRCA.HHZ. 2022-10-07T20:03:25.33 0.3 undecidable manual P 78 32.0457 50 -0.33 75
IV.LNSS.HHZ. 2022-10-07T20:03:25.44 0.3 undecidable manual P 127 31.746 50 -0.18 78
IV.CESI.HHZ. 2022-10-07T20:03:24.99 0.3 undecidable manual P 29 29.2485 50 -0.24 77
IT.GNU.HGZ. 2022-10-07T20:03:24.99 0.3 undecidable manual S 284 13.3755 127 0.01 83
IV.ARRO.EHZ. 2022-10-07T20:03:24.10 0.3 undecidable manual P 172 21.867 115 0.09 81
IV.GAVE.EHZ. 2022-10-07T20:03:23.01 0.3 undecidable manual P 124 16.2726 122 -0.01 83
IV.CESX.HHZ. 2022-10-07T20:03:23.81 0.3 undecidable manual P 212 21.7671 115 -0.18 79
IT.GNU.HGZ. 2022-10-07T20:03:22.54 0.3 undecidable manual P 284 13.3755 127 0.01 83
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.HNE. ML:1.8 0.0005865 0.76 AML other m 2022-10-07T20:03:26.39
IV.GAVE.EHE. ML:1.8 0.0004965 0.76 AML other m 2022-10-07T20:03:26.40
IV.GAVE.EHN. ML:1.8 0.0006085 0.96 AML other m 2022-10-07T20:03:27.59
IV.CESX.HHN. ML:1.5 0.0002295 0.24 AML other m 2022-10-07T20:03:28.03
IV.CESX.HHE. ML:1.5 0.0002125 1.34 AML other m 2022-10-07T20:03:28.78
IV.GAVE.HNN. ML:1.5 0.00028649999999999997 0.8 AML other m 2022-10-07T20:03:28.59
IV.ARRO.EHN. ML:1.4 0.000163 0.6 AML other m 2022-10-07T20:03:29.04
IV.CESI.HHN. ML:1.7 0.000243 0.22 AML other m 2022-10-07T20:03:29.76
IV.CESI.HHE. ML:1.4 0.000123 1.74 AML other m 2022-10-07T20:03:30.99
IV.ASSB.HHN. ML:1.5 0.000141 0.18 AML other m 2022-10-07T20:03:30.24
IV.ARRO.EHE. ML:1.3 0.000136 0.24 AML other m 2022-10-07T20:03:30.94
IV.NRCA.HHE. ML:1.8 0.000265 0.14 AML other m 2022-10-07T20:03:31.05
IV.LNSS.HHE. ML:1.8 0.0002845 0.48 AML other m 2022-10-07T20:03:31.72
IV.ASSB.HHE. ML:1.5 0.00014900000000000002 1.62 AML other m 2022-10-07T20:03:32.99
IV.LNSS.HHN. ML:1.8 0.00029949999999999996 0.96 AML other m 2022-10-07T20:03:32.66
IV.NRCA.HHN. ML:1.7 0.000237 0.1 AML other m 2022-10-07T20:03:32.76
IV.FDMO.HHE. ML:1.4 0.00009070000000000001 0.18 AML other m 2022-10-07T20:03:33.10
IV.FDMO.HHN. ML:1.4 0.0000727 0.58 AML other m 2022-10-07T20:03:34.71
IV.MML1.EHE. ML:1.4 0.00007405000000000001 0.48 AML other m 2022-10-07T20:03:34.26
IV.MC2.EHN. ML:2.0 0.000332 0.24 AML other m 2022-10-07T20:03:34.53
IV.ATCC.EHE. ML:1.6 0.0001175 0.44 AML other m 2022-10-07T20:03:35.29
IV.MC2.EHE. ML:1.9 0.000261 0.24 AML other m 2022-10-07T20:03:35.57
IV.ATCC.EHN. ML:1.6 0.000104 0.4 AML other m 2022-10-07T20:03:35.40
IV.MMO1.EHE. ML:1.7 0.000134 0.16 AML other m 2022-10-07T20:03:35.80
IV.RM33.EHN. ML:1.4 0.0000649 0.94 AML other m 2022-10-07T20:03:36.28
IV.MMO1.EHN. ML:1.8 0.0001585 0.22 AML other m 2022-10-07T20:03:36.23
IV.CSP1.EHE. ML:1.8 0.000157 0.56 AML other m 2022-10-07T20:03:36.37
IV.MML1.EHN. ML:1.2 0.000056 0.26 AML other m 2022-10-07T20:03:36.73
IV.CSP1.EHN. ML:1.9 0.000216 0.5 AML other m 2022-10-07T20:03:36.73
IV.RM33.EHE. ML:1.5 0.00007815 0.16 AML other m 2022-10-07T20:03:37.20
IV.SMA1.EHN. ML:1.4 0.00007205 0.96 AML other m 2022-10-07T20:03:38.60
IV.GUMA.HHE. ML:1.8 0.000142 0.28 AML other m 2022-10-07T20:03:38.74
IV.MGAB.HHN. ML:1.6 0.00009140000000000001 0.18 AML other m 2022-10-07T20:03:38.91
IV.SMA1.EHE. ML:1.5 0.000082 1.4 AML other m 2022-10-07T20:03:38.98
IV.MGAB.HHE. ML:1.4 0.00006570000000000001 0.2 AML other m 2022-10-07T20:03:40.46
IV.MURB.HHE. ML:1.9 0.0001675 0.22 AML other m 2022-10-07T20:03:40.28
IV.MURB.HHN. ML:1.8 0.0001545 0.26 AML other m 2022-10-07T20:03:40.26
IV.SRES.HHE. ML:1.3 0.000041349999999999995 0.18 AML other m 2022-10-07T20:03:40.60
IV.GUMA.HHN. ML:1.8 0.000131 0.54 AML other m 2022-10-07T20:03:41.51
IV.FIAM.HHN. ML:1.2 0.00002925 0.66 AML other m 2022-10-07T20:03:42.50
IV.SRES.HHN. ML:1.2 0.000034099999999999995 0.24 AML other m 2022-10-07T20:03:42.52
IV.FIAM.HHE. ML:1.1 0.000023449999999999997 1.14 AML other m 2022-10-07T20:03:42.17
IV.SSFR.HHN. ML:2.0 0.0001385 0.24 AML other m 2022-10-07T20:03:43.81
IV.SSFR.HHE. ML:1.8 0.00010650000000000001 0.22 AML other m 2022-10-07T20:03:43.83
IV.ARVD.HHE. ML:1.3 0.0000257 0.34 AML other m 2022-10-07T20:03:45.71
IV.ARVD.HHN. ML:0.9 0.000008422413 0.2176 AML other m 2022-10-07T20:03:46.11
IV.PIEI.HHN. ML:1.3 0.0000247 0.3 AML other m 2022-10-07T20:03:48.34
IV.PIEI.HHE. ML:1.3 0.00002385 0.64 AML other m 2022-10-07T20:03:48.53
IV.NARO.HHE. ML:1.1 0.000013700000000000001 1.38 AML other m 2022-10-07T20:03:49.72
IV.NARO.HHN. ML:1.0 0.000011550000000000001 0.46 AML other m 2022-10-07T20:03:51.44
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