Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 04-11-2022 and time 21:07:43 (UTC) in region 2 km NE Norcia (PG)

A magnitude ML 1.8 earthquake occured in region: 2 km NE Norcia (PG), on

  • 04-11-2022 21:07:43 (UTC)
  • 04-11-2022 22:07:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8070, 13.1170 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
Norcia PG 3 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Preci PG 10 724 5962
Cascia PG 13 3217 9179
Visso MC 14 1107 10286
Arquata del Tronto AP 15 1178 11464
Ussita MC 15 444 11908
Accumoli RI 16 667 12575
Cerreto di Spoleto PG 16 1075 13650
Sellano PG 18 1079 14729
Montegallo AP 18 523 15252
Poggiodomo PG 18 117 15369

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
98 Km W of Pescara (121014 inhabitants)
100 Km NW of Chieti (51815 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 1.8 2022-11-04
21:07:43		 42.8073 13.1172 10 2024-03-01
15:28:25		 Bollettino Sismico Italiano INGV 117862861
Reviewed
Rev100 		ML 1.8 2022-11-04
21:07:43		 42.8082 13.1162 10 2022-11-04
21:13:20		 Sala Sismica INGV-Roma 111486011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-11-04 21:07:43 ± 0.04
Latitude 42.8073 ± 0.0018
Longitude 13.1172 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117862861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 265
Semi-minor axis of confidence ellipse (meter) 184
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 58
Number of defining phases 58
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) 0.02608
Epicentral distance of station farthest from the epicenter (degree) 0.84266
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 34
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 117862861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-29 20:26:29

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 111486011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-11-04 21:13:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2022-11-04T21:08:02.68 0.6 undecidable manual S 359 57.8976 50 0.49 42
IV.PIEI.HHZ. 2022-11-04T21:07:59.67 0.3 undecidable manual P 330 93.5397 50 -0.3 61
IV.TERO.HHZ. 2022-11-04T21:07:58.28 0.6 undecidable manual S 117 44.622 50 -0.37 44
IV.ASSB.HHZ. 2022-11-04T21:07:58.94 0.3 undecidable manual S 305 45.4212 50 0.07 70
IV.SAP2.EHZ. 2022-11-04T21:07:57.90 0.3 undecidable manual S 35 39.4272 50 0.64 61
IV.SSFR.HHZ. 2022-11-04T21:07:57.30 0.6 undecidable manual P 339 74.8695 50 0.2 43
IV.ARVD.HHZ. 2022-11-04T21:07:56.95 0.3 undecidable manual P 350 77.9664 50 -0.61 58
IV.MF5.EHZ. 2022-11-04T21:07:56.42 0.3 undecidable manual S 54 34.2435 50 0.54 64
IV.CAMP.HHZ. 2022-11-04T21:07:56.73 0.3 undecidable manual S 142 38.4282 50 -0.25 68
IV.ARRO.EHZ. 2022-11-04T21:07:56.71 0.6 undecidable manual S 229 38.2284 50 -0.23 46
IV.MURB.HHZ. 2022-11-04T21:07:56.85 0.3 undecidable manual P 317 69.7746 50 0.55 60
IV.GUMA.HHZ. 2022-11-04T21:07:55.74 0.3 undecidable manual S 32 33.4443 50 0.09 71
IV.CING.HHZ. 2022-11-04T21:07:55.09 0.3 undecidable manual P 6 63.3921 50 -0.23 66
IV.RM33.EHZ. 2022-11-04T21:07:55.78 0.3 undecidable manual S 166 34.0437 50 -0.04 72
IV.MML1.EHZ. 2022-11-04T21:07:55.93 0.6 undecidable manual S 341 35.9418 50 -0.4 44
IV.ATCC.EHZ. 2022-11-04T21:07:54.44 0.3 undecidable manual P 317 57.0984 50 0.09 68
IV.FIAM.HHZ. 2022-11-04T21:07:54.62 0.3 undecidable manual P 180 59.7957 50 -0.16 67
IV.EL6.EHZ. 2022-11-04T21:07:54.29 0.3 undecidable manual P 359 57.8976 50 -0.19 67
IV.GIGS.HHZ. 2022-11-04T21:07:53.76 0.3 undecidable manual P 136 54.1014 50 -0.14 68
IV.CESI.HHZ. 2022-11-04T21:07:53.92 0.3 undecidable manual S 322 27.8499 50 -0.26 70
IV.MNTT.EHZ. 2022-11-04T21:07:53.60 0.3 undecidable manual P 54 48.0186 50 0.64 60
IV.OFFI.HHZ. 2022-11-04T21:07:53.63 0.3 undecidable manual P 73 48.3183 50 0.62 61
IV.SMA1.EHZ. 2022-11-04T21:07:53.64 0.3 undecidable manual S 138 26.4513 110 -0.09 72
IV.GAVE.EHZ. 2022-11-04T21:07:52.64 0.3 undecidable manual S 235 22.1556 113 0.29 70
IV.LNSS.HHZ. 2022-11-04T21:07:52.99 0.3 undecidable manual S 195 23.5542 112 0.21 71
IV.TERO.HHZ. 2022-11-04T21:07:52.08 0.3 undecidable manual P 117 44.622 50 -0.36 66
IV.FDMO.HHZ. 2022-11-04T21:07:52.90 0.3 undecidable manual S 355 25.5522 111 -0.52 66
IV.ASSB.HHZ. 2022-11-04T21:07:52.38 0.1 undecidable manual P 305 45.4212 50 -0.18 91
IT.MTCL.HGZ. 2022-11-04T21:07:52.18 0.6 undecidable manual S 335 22.755 113 -0.36 46
IV.MTRA.EHZ. 2022-11-04T21:07:52.47 0.6 undecidable manual S 104 23.4543 112 -0.28 47
IV.ARRO.EHZ. 2022-11-04T21:07:51.48 0.1 undecidable manual P 229 38.2284 50 0.03 96
IV.SAP2.EHZ. 2022-11-04T21:07:51.87 0.1 undecidable manual P 35 39.4272 50 0.23 91
IV.MMO1.EHZ. 2022-11-04T21:07:51.39 0.6 undecidable manual S 59 19.869 116 -0.22 47
IV.CAMP.HHZ. 2022-11-04T21:07:51.21 0.3 undecidable manual P 142 38.4282 50 -0.26 68
IV.RM33.EHZ. 2022-11-04T21:07:50.75 0.3 undecidable manual P 166 34.0437 50 -0.05 72
7F.SIB2.EHE. 2022-11-04T21:07:50.66 0.6 undecidable manual S 58 17.7711 118 -0.32 47
7F.SIB1.EHE. 2022-11-04T21:07:50.34 0.6 undecidable manual S 52 15.7731 121 -0.02 50
IV.MML1.EHZ. 2022-11-04T21:07:50.93 0.1 undecidable manual P 341 35.9418 50 -0.17 93
IV.FEMA.HNE. 2022-11-04T21:07:50.95 0.6 undecidable manual S 342 17.9709 118 -0.09 49
IV.MF5.EHZ. 2022-11-04T21:07:50.97 0.1 positive manual P 54 34.2435 50 0.13 94
IV.GUMA.HHZ. 2022-11-04T21:07:50.75 0.1 positive manual P 32 33.4443 50 0.05 96
IV.FDMO.HHZ. 2022-11-04T21:07:49.23 0.1 positive manual P 355 25.5522 111 -0.19 94
IV.SMA1.EHZ. 2022-11-04T21:07:49.58 0.1 undecidable manual P 138 26.4513 110 -0.02 98
IV.MC2.EHZ. 2022-11-04T21:07:49.83 0.3 undecidable manual S 27 12.9759 127 0.28 71
IV.CESI.HHZ. 2022-11-04T21:07:49.76 0.1 undecidable manual P 322 27.8499 50 -0.1 96
IV.GAVE.EHZ. 2022-11-04T21:07:49.08 0.1 positive manual P 235 22.1556 113 0.28 93
7F.SIB3.EHN. 2022-11-04T21:07:49.79 0.6 undecidable manual S 59 14.5743 124 -0.21 48
IV.LNSS.HHZ. 2022-11-04T21:07:49.22 0.1 undecidable manual P 195 23.5542 112 0.17 95
IV.MMO1.EHZ. 2022-11-04T21:07:48.29 0.1 positive manual P 59 19.869 116 -0.09 97
IT.MTCL.HGZ. 2022-11-04T21:07:48.81 0.1 undecidable manual P 335 22.755 113 -0.1 97
IV.MTRA.EHZ. 2022-11-04T21:07:48.88 0.1 undecidable manual P 104 23.4543 112 -0.15 96
IV.FEMA.HNE. 2022-11-04T21:07:48.19 0.1 undecidable manual P 342 17.9709 118 0.14 97
7F.SIB3.EHN. 2022-11-04T21:07:47.44 0.1 undecidable manual P 59 14.5743 124 -0.01 100
IV.NRCA.HNZ. 2022-11-04T21:07:47.44 0.3 undecidable manual S 355 2.8971 163 -0.01 76
7F.SIB2.EHE. 2022-11-04T21:07:47.91 0.1 undecidable manual P 58 17.7711 118 -0.1 98
7F.SIB1.EHE. 2022-11-04T21:07:47.77 0.1 undecidable manual P 52 15.7731 121 0.12 98
IV.MC2.EHZ. 2022-11-04T21:07:47.44 0.1 undecidable manual P 27 12.9759 127 0.25 95
IV.NRCA.HNZ. 2022-11-04T21:07:46.28 0.1 undecidable manual P 355 2.8971 163 0.31 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.2 0.00281 0.16 AML other m 2022-11-04T21:07:47.63
IV.NRCA.HHE. ML:2.3 0.00375 0.14 AML other m 2022-11-04T21:07:47.72
IV.NRCA.HNE. ML:2.3 0.0035549999999999996 0.16 AML other m 2022-11-04T21:07:47.73
IV.NRCA.HHN. ML:2.2 0.0030549999999999996 0.1 AML other m 2022-11-04T21:07:48.56
IV.MC2.EHE. ML:2.2 0.00165 0.54 AML other m 2022-11-04T21:07:50.97
IV.MC2.EHN. ML:2.1 0.001495 0.44 AML other m 2022-11-04T21:07:51.51
IV.MMO1.EHN. ML:1.7 0.000402 0.46 AML other m 2022-11-04T21:07:53.02
IV.MMO1.EHE. ML:1.6 0.000313 0.48 AML other m 2022-11-04T21:07:53.08
IV.GAVE.EHE. ML:1.8 0.000391 0.88 AML other m 2022-11-04T21:07:53.56
IV.MTRA.HNN. ML:1.7 0.00034399999999999996 0.7 AML other m 2022-11-04T21:07:53.93
IV.MTRA.EHE. ML:1.7 0.00033199999999999994 1.2 AML other m 2022-11-04T21:07:53.65
IV.MTRA.HNE. ML:1.7 0.00033850000000000004 1.2 AML other m 2022-11-04T21:07:53.65
IV.GAVE.EHN. ML:1.7 0.00033999999999999997 0.42 AML other m 2022-11-04T21:07:53.67
IV.LNSS.HHE. ML:1.9 0.00054 0.38 AML other m 2022-11-04T21:07:53.70
IV.FDMO.HHN. ML:1.5 0.00017299999999999998 1.32 AML other m 2022-11-04T21:07:54.66
IV.CESI.HHE. ML:1.5 0.000157 0.18 AML other m 2022-11-04T21:07:54.26
IV.MTRA.EHN. ML:1.8 0.00035299999999999996 0.62 AML other m 2022-11-04T21:07:54.51
IV.FDMO.HHE. ML:1.3 0.00011949999999999999 0.74 AML other m 2022-11-04T21:07:54.71
IV.CESI.HHN. ML:1.6 0.000228 0.24 AML other m 2022-11-04T21:07:54.32
IV.LNSS.HHN. ML:1.8 0.0003805 0.72 AML other m 2022-11-04T21:07:54.08
IV.GUMA.HHE. ML:1.9 0.00036350000000000005 0.36 AML other m 2022-11-04T21:07:56.31
IV.GUMA.HHN. ML:1.8 0.0002945 0.14 AML other m 2022-11-04T21:07:57.51
IV.RM33.EHE. ML:1.4 0.0001092 1.02 AML other m 2022-11-04T21:07:57.17
IV.SAP2.EHN. ML:2.6 0.0013199999999999998 0.14 AML other m 2022-11-04T21:07:58.14
IV.SAP2.EHE. ML:1.9 0.00028750000000000005 0.46 AML other m 2022-11-04T21:07:58.48
IV.RM33.EHN. ML:1.4 0.0001105 0.52 AML other m 2022-11-04T21:07:58.71
IV.ASSB.HHN. ML:1.5 0.00008565000000000001 1.04 AML other m 2022-11-04T21:08:00.37
IV.ASSB.HHE. ML:1.5 0.00009245000000000001 1.44 AML other m 2022-11-04T21:08:01.86
IV.ATCC.EHN. ML:1.6 0.00009165 0.5 AML other m 2022-11-04T21:08:04.67
IV.ATCC.EHE. ML:1.6 0.00007775 0.8 AML other m 2022-11-04T21:08:06.42
IV.MURB.HHE. ML:1.9 0.0001351 0.5 AML other m 2022-11-04T21:08:09.31
IV.MURB.HHN. ML:1.9 0.0001305 0.56 AML other m 2022-11-04T21:08:09.49
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