Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 31-10-2022 and time 10:53:45 (UTC) in region 1 km SE Norcia (PG)

A magnitude ML 1.4 earthquake occured in region: 1 km SE Norcia (PG), on

  • 31-10-2022 10:53:45 (UTC)
  • 31-10-2022 11:53:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7840, 13.1000 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 1 4957 4957
Cascia PG 10 3217 8174
Preci PG 12 724 8898
Castelsantangelo sul Nera MC 13 281 9179
Cerreto di Spoleto PG 15 1075 10254
Accumoli RI 16 667 10921
Poggiodomo PG 16 117 11038
Arquata del Tronto AP 16 1178 12216
Visso MC 17 1107 13323
Ussita MC 18 444 13767
Sellano PG 18 1079 14846
Monteleone di Spoleto PG 19 599 15445
Cittareale RI 19 482 15927
Vallo di Nera PG 19 364 16291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SE of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
98 Km W of Pescara (121014 inhabitants)
99 Km SW of Ancona (100861 inhabitants)
100 Km W 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 1.4 2022-10-31
10:53:45		 42.7838 13.0998 10 2024-03-01
15:28:23		 Bollettino Sismico Italiano INGV 117416791
Reviewed
Rev100 		ML 1.4 2022-10-31
10:53:45		 42.7918 13.1082 10 2022-10-31
11:11:07		 Sala Sismica INGV-Roma 111344401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-10-31 10:53:45 ± 0.04
Latitude 42.7838 ± 0.0018
Longitude 13.0998 ± 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 117416791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 257
Semi-minor axis of confidence ellipse (meter) 227
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 95
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) 42
Number of associated phases, regardless of their use for origin computation 61
Number of defining phases 57
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) 0.59535
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 33
Type of magnitude ML
Reference to an origin 111344401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-10-31 11:11:07

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 33
Type of magnitude ML
Reference to an origin 117416791
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-16 23:29:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SBPO.HNZ. 2022-10-31T10:54:27.67 3.0 undecidable manual Sn -2.7 0
GU.POPM.HHZ. 2022-10-31T10:54:16.70 3.0 undecidable manual Sn 0.94 0
IT.MMP1.HGZ. 2022-10-31T10:54:06.18 0.6 undecidable manual S 206 65.8896 50 0.5 41
IV.CING.HHZ. 2022-10-31T10:54:06.81 0.6 undecidable manual S 7 66.0894 50 1.08 32
IV.FOSV.EHZ. 2022-10-31T10:54:05.58 1.0 undecidable manual S 334 62.9925 50 0.68 19
IV.ATCC.EHZ. 2022-10-31T10:54:04.00 0.6 undecidable manual S 320 58.0974 50 0.41 43
IV.EL6.EHZ. 2022-10-31T10:54:04.82 0.6 undecidable manual S 0 60.495 50 0.58 40
IV.ASSB.HHZ. 2022-10-31T10:54:00.18 0.6 undecidable manual S 309 45.9207 50 -0.16 46
IT.GNU.HGZ. 2022-10-31T10:53:59.92 0.6 undecidable manual S 273 43.1235 50 0.31 45
IV.TERO.HHZ. 2022-10-31T10:53:59.82 0.6 undecidable manual S 113 44.8218 50 -0.23 46
IV.MF5.EHZ. 2022-10-31T10:53:58.80 0.3 undecidable manual S 52 37.0296 50 0.84 56
IV.MML1.EHZ. 2022-10-31T10:53:57.53 0.6 undecidable manual S 344 38.0286 50 -0.7 40
IT.MMP1.HGZ. 2022-10-31T10:53:57.04 0.6 undecidable manual P 206 65.8896 50 -0.06 45
IV.CSP1.EHZ. 2022-10-31T10:53:57.31 0.3 undecidable manual S 14 35.2425 50 -0.18 70
IV.CING.HHZ. 2022-10-31T10:53:57.39 0.3 undecidable manual P 7 66.0894 50 0.26 65
IV.ARRO.EHZ. 2022-10-31T10:53:57.78 0.3 undecidable manual S 230 35.4423 50 0.23 69
IV.FOSV.EHZ. 2022-10-31T10:53:56.68 0.3 undecidable manual P 334 62.9925 50 0.03 69
IV.RM33.EHZ. 2022-10-31T10:53:56.35 0.3 undecidable manual S 163 31.8459 50 -0.25 70
IV.EL6.EHZ. 2022-10-31T10:53:56.21 0.3 undecidable manual P 0 60.495 50 -0.06 69
IV.FIAM.HHZ. 2022-10-31T10:53:55.76 0.3 undecidable manual P 179 57.1983 50 0 70
IV.CESI.HHZ. 2022-10-31T10:53:55.59 0.3 undecidable manual S 327 29.2485 50 -0.29 69
IV.ATCC.EHZ. 2022-10-31T10:53:55.86 0.3 undecidable manual P 320 58.0974 50 -0.04 69
IV.SMA1.EHZ. 2022-10-31T10:53:55.27 0.6 undecidable manual S 131 25.6521 111 0.34 46
IV.FDMO.HHZ. 2022-10-31T10:53:55.25 0.3 undecidable manual S 358 28.0497 50 -0.32 69
IV.ASSB.HHZ. 2022-10-31T10:53:54.07 0.3 undecidable manual P 309 45.9207 50 0.05 71
IT.MTCL.HGZ. 2022-10-31T10:53:54.12 0.3 undecidable manual S 341 24.6531 112 -0.5 66
IV.GIGS.HHZ. 2022-10-31T10:53:54.88 0.3 undecidable manual P 133 53.3022 50 -0.27 67
IV.MTRA.HNN. 2022-10-31T10:53:54.25 0.3 undecidable manual S 97 24.3534 112 -0.26 70
IT.GNU.HGZ. 2022-10-31T10:53:53.81 0.3 undecidable manual P 273 43.1235 50 0.21 69
IV.LNSS.HHZ. 2022-10-31T10:53:53.29 0.3 undecidable manual S 194 20.6682 116 -0.05 74
IV.TERO.HHZ. 2022-10-31T10:53:53.72 0.3 undecidable manual P 113 44.8218 50 -0.13 70
7F.SIB2.EHZ. 2022-10-31T10:53:53.11 0.3 undecidable manual S 54 20.4684 116 -0.16 72
IV.CESX.HHZ. 2022-10-31T10:53:53.93 0.3 undecidable manual P 245 46.1205 50 -0.12 70
IV.MMO1.EHZ. 2022-10-31T10:53:53.70 0.3 undecidable manual S 55 22.4553 114 -0.22 71
IV.GAVE.EHZ. 2022-10-31T10:53:53.07 0.3 undecidable manual S 239 19.5693 117 0.06 74
IV.FEMA.HNZ. 2022-10-31T10:53:53.08 0.3 undecidable manual S 348 20.1687 116 -0.12 73
7F.SIB3.EHZ. 2022-10-31T10:53:52.13 0.3 undecidable manual S 54 17.1717 120 -0.14 73
IV.ARRO.EHZ. 2022-10-31T10:53:52.31 0.3 undecidable manual P 230 35.4423 50 -0.1 71
IV.MC2.EHZ. 2022-10-31T10:53:52.30 0.3 undecidable manual S 27 15.873 122 0.4 69
IV.MML1.EHZ. 2022-10-31T10:53:52.48 0.3 undecidable manual P 344 38.0286 50 -0.32 68
7F.SIB1.EHN. 2022-10-31T10:53:52.89 0.3 undecidable manual S 48 18.5703 118 0.21 72
IV.CSP1.EHZ. 2022-10-31T10:53:52.14 0.1 undecidable manual P 14 35.2425 50 -0.23 93
IV.MF5.EHZ. 2022-10-31T10:53:52.90 0.3 undecidable manual P 52 37.0296 50 0.25 69
IV.SMA1.EHZ. 2022-10-31T10:53:51.02 0.3 undecidable manual P 131 25.6521 111 0.12 72
IV.RM33.EHZ. 2022-10-31T10:53:51.66 0.3 undecidable manual P 163 31.8459 50 -0.2 70
IV.FDMO.HHZ. 2022-10-31T10:53:51.04 0.1 undecidable manual P 358 28.0497 50 -0.23 94
IV.CESI.HHZ. 2022-10-31T10:53:51.28 0.1 undecidable manual P 327 29.2485 50 -0.16 95
IV.MMO1.EHZ. 2022-10-31T10:53:50.27 0.3 undecidable manual P 55 22.4553 114 -0.04 74
IT.MTCL.HGZ. 2022-10-31T10:53:50.46 0.3 undecidable manual P 341 24.6531 112 -0.26 70
IV.MTRA.HNN. 2022-10-31T10:53:50.48 0.3 undecidable manual P 97 24.3534 112 -0.17 71
7F.SIB1.EHN. 2022-10-31T10:53:49.78 0.1 undecidable manual P 48 18.5703 118 0.18 96
IV.GAVE.EHZ. 2022-10-31T10:53:49.84 0.1 undecidable manual P 239 19.5693 117 0.05 99
IV.FEMA.HNZ. 2022-10-31T10:53:49.91 0.3 undecidable manual P 348 20.1687 116 0.02 75
7F.SIB3.EHZ. 2022-10-31T10:53:49.36 0.1 undecidable manual P 54 17.1717 120 0 100
IV.LNSS.HHZ. 2022-10-31T10:53:49.98 0.1 undecidable manual P 194 20.6682 116 0 99
7F.SIB2.EHZ. 2022-10-31T10:53:49.85 0.1 undecidable manual P 54 20.4684 116 -0.09 98
IV.MC2.EHZ. 2022-10-31T10:53:49.41 0.1 undecidable manual P 27 15.873 122 0.27 95
IV.NRCA.HHZ. 2022-10-31T10:53:49.63 0.3 undecidable manual S 12 5.6943 150 0.27 73
IV.NRCA.HHZ. 2022-10-31T10:53:48.02 0.1 undecidable manual P 12 5.6943 150 0.34 95
IV.CRTC.HHZ. 2022-10-31T10:53:42.61 3.0 negative manual P 2.66 0
IV.MCIV.CHZ. 2022-10-31T10:53:41.08 3.0 undecidable manual P 1.25 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHE. ML:1.1 0.0000165744815 0.0768 AML other m 2022-10-31T10:53:41.59
IV.NRCA.HHN. ML:1.9 0.001365 0.14 AML other m 2022-10-31T10:53:50.21
IV.NRCA.HNN. ML:1.9 0.0012250000000000002 0.14 AML other m 2022-10-31T10:53:50.21
IV.NRCA.HNE. ML:1.8 0.0010342505500000002 0.0576 AML other m 2022-10-31T10:53:50.34
IV.NRCA.HHE. ML:1.8 0.0010698602 0.0768 AML other m 2022-10-31T10:53:50.58
IV.GAVE.HNN. ML:1.3 0.00015299085 0.1216 AML other m 2022-10-31T10:53:53.88
IV.GAVE.EHN. ML:1.8 0.0004978317 0.1216 AML other m 2022-10-31T10:53:53.95
IV.GAVE.EHE. ML:1.8 0.00054377575 0.1408 AML other m 2022-10-31T10:53:54.20
IV.GAVE.HNE. ML:1.8 0.0005394917 0.1216 AML other m 2022-10-31T10:53:54.21
IV.FDMO.HHE. ML:1.5 0.00018114059999999998 0.1856 AML other m 2022-10-31T10:53:55.60
IV.CESI.HHE. ML:1.3 0.00010063628 0.2432 AML other m 2022-10-31T10:53:55.67
IV.CESI.HHN. ML:1.7 0.0002320838 0.2368 AML other m 2022-10-31T10:53:55.88
IV.FDMO.HHN. ML:1.5 0.00016543045 1.8016 AML other m 2022-10-31T10:53:55.95
IV.CSP1.EHE. ML:2.0 0.00036230649999999996 0.16 AML other m 2022-10-31T10:53:58.04
IV.CSP1.EHN. ML:2.0 0.00041878755 0.224 AML other m 2022-10-31T10:53:58.50
IV.MML1.EHN. ML:1.4 0.00009455 0.2 AML other m 2022-10-31T10:53:58.72
IV.MML1.EHE. ML:1.4 0.00008315 0.16 AML other m 2022-10-31T10:53:59.62
IV.ARRO.EHN. ML:1.3 0.00008354022 0.16 AML other m 2022-10-31T10:53:59.57
IV.ARRO.EHE. ML:1.2 0.0000604917 1.8016 AML other m 2022-10-31T10:53:59.96
IV.CESX.HHE. ML:1.1 0.000039667095 0.1792 AML other m 2022-10-31T10:54:00.64
IV.ASSB.HHE. ML:1.2 0.00004304299 1.8208 AML other m 2022-10-31T10:54:00.06
IV.ASSB.HHN. ML:1.2 0.00004461704 0.1792 AML other m 2022-10-31T10:54:01.65
IV.FIAM.HHN. ML:1.3 0.00004001411000000001 1.84 AML other m 2022-10-31T10:54:03.05
IV.CESX.HHN. ML:1.4 0.000063034965 1.8208 AML other m 2022-10-31T10:54:04.91
IV.FIAM.HHE. ML:1.2 0.000033488192 0.2816 AML other m 2022-10-31T10:54:04.55
IV.ATCC.EHE. ML:1.2 0.00002871581 0.1216 AML other m 2022-10-31T10:54:05.35
IV.EL6.EHE. ML:1.6 0.000073026105 0.1408 AML other m 2022-10-31T10:54:06.17
IV.FOSV.EHE. ML:1.0 0.000017705075 0.2176 AML other m 2022-10-31T10:54:06.28
IV.FOSV.EHN. ML:1.1 0.00002294764 0.2752 AML other m 2022-10-31T10:54:06.51
IV.EL6.EHN. ML:1.5 0.00006617455 0.1408 AML other m 2022-10-31T10:54:06.59
IV.ATCC.EHN. ML:1.3 0.000038903855 1.6608 AML other m 2022-10-31T10:54:07.93
IV.CING.HHE. ML:1.3 0.000036793885 0.1216 AML other m 2022-10-31T10:54:08.55
IV.CING.HHN. ML:1.1 0.000023716305 0.1984 AML other m 2022-10-31T10:54:08.82
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