Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 01-11-2020 and time 09:33:01 (Italy) in region 3 km NE Norcia (PG)

A magnitude ML 1.7 earthquake occured in region: 3 km NE Norcia (PG), on

  • 01-11-2020 08:33:01 (UTC)
  • 01-11-2020 09:33:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8070, 13.1240 at 11 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 11 724 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 17 1075 13650
Montegallo AP 18 523 14173
Sellano PG 19 1079 15252
Poggiodomo PG 19 117 15369
Montemonaco AP 20 604 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
69 Km E of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km W of Pescara (121014 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
99 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 1.7 2020-11-01
08:33:01		 42.8067 13.1245 11 2021-02-26
14:56:05		 Bollettino Sismico Italiano INGV 84665701
Reviewed
Rev100 		ML 1.7 2020-11-01
08:33:01		 42.8047 13.123 9 2020-11-01
08:43:27		 Sala Sismica INGV-Roma 84354821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-01 08:33:01 ± 0.03
Latitude 42.8067 ± 0.0018
Longitude 13.1245 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84665701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 203
Semi-minor axis of confidence ellipse (meter) 120
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 62
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 56
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.75093
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 37
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 50
Type of magnitude ML
Reference to an origin 84354821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-01 08:43:27

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 50
Type of magnitude ML
Reference to an origin 84665701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-12 10:48:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIR.HHZ. 2020-11-01T08:33:30.99 3.0 undecidable manual Pn 0.43 0
IV.ASSB.HHZ. 2020-11-01T08:33:16.24 0.6 undecidable manual S 305 46.0206 50 -0.25 45
IV.T0110.HHZ. 2020-11-01T08:33:16.08 0.6 undecidable manual P 140 83.3499 50 0.12 43
IV.ATFO.HHZ. 2020-11-01T08:33:15.21 0.3 undecidable manual P 324 76.5678 50 0.29 63
IV.ARVD.HHZ. 2020-11-01T08:33:15.13 0.1 undecidable manual P 349 78.0663 50 -0.03 88
IV.PF6.EHZ. 2020-11-01T08:33:14.05 0.3 undecidable manual S 9 37.1295 50 -0.08 70
IV.FAGN.HHZ. 2020-11-01T08:33:14.27 0.6 undecidable manual P 148 70.7736 50 0.24 43
IV.MURB.HHZ. 2020-11-01T08:33:14.23 0.3 undecidable manual P 316 70.1742 50 0.29 63
IV.CAMP.HHZ. 2020-11-01T08:33:14.02 0.6 undecidable manual S 142 37.9287 50 -0.32 44
IV.RM33.EHZ. 2020-11-01T08:33:13.31 0.6 undecidable manual S 167 33.8439 50 0.07 47
IV.MML1.HNZ. 2020-11-01T08:33:13.90 0.3 undecidable manual S 340 36.2415 50 0.02 71
IV.GUMA.HHZ. 2020-11-01T08:33:13.39 0.3 undecidable manual S 31 33.1446 50 0.33 67
IV.EL6.EHZ. 2020-11-01T08:33:12.16 0.6 undecidable manual P 358 57.9975 50 0.1 45
IV.ATCC.EHZ. 2020-11-01T08:33:12.00 0.6 undecidable manual P 317 57.498 50 0.02 46
IV.CSP1.EHZ. 2020-11-01T08:33:12.78 0.3 undecidable manual S 12 32.3454 50 -0.05 71
IV.FOSV.EHZ. 2020-11-01T08:33:12.86 0.6 positive manual P 332 61.6938 50 0.24 43
IV.GIGS.HHN. 2020-11-01T08:33:11.03 0.1 undecidable manual P 137 53.6019 50 -0.36 86
IV.SMA1.EHZ. 2020-11-01T08:33:11.04 0.3 undecidable manual S 139 26.0517 50 -0.12 71
IV.CESI.HHZ. 2020-11-01T08:33:11.64 0.3 undecidable manual S 321 28.3494 50 -0.13 71
IV.SNTG.HHZ. 2020-11-01T08:33:11.04 0.1 undecidable manual P 343 51.9036 50 -0.08 91
IV.MTRA.EHZ. 2020-11-01T08:33:10.10 0.3 undecidable manual S 104 22.8549 50 -0.2 70
IV.MOMA.HHZ. 2020-11-01T08:33:10.16 0.6 undecidable manual P 270 45.1215 50 0.09 46
IT.GNU.HGE. 2020-11-01T08:33:10.06 0.1 undecidable manual P 270 45.1215 50 -0.01 94
IV.FDMO.HHZ. 2020-11-01T08:33:10.78 0.3 undecidable manual S 353 25.6521 50 -0.28 69
IV.LNSS.HHZ. 2020-11-01T08:33:10.52 0.3 undecidable manual S 197 23.6541 50 0 73
IV.ASSB.HHZ. 2020-11-01T08:33:10.19 0.6 undecidable manual P 305 46.0206 50 -0.02 47
IT.MTCL.HGZ. 2020-11-01T08:33:10.08 0.3 undecidable manual S 334 23.1546 50 -0.3 69
IV.T1299.HNZ. 2020-11-01T08:33:10.58 0.3 undecidable manual S 146 23.0547 50 0.22 70
IV.CESX.HHZ. 2020-11-01T08:33:10.73 0.1 undecidable manual P 244 49.0176 50 0.05 92
IV.GAVE.EHZ. 2020-11-01T08:33:10.15 0.6 undecidable manual S 236 22.6551 50 -0.11 48
IV.MMO1.EHZ. 2020-11-01T08:33:09.17 0.3 undecidable manual S 58 19.3695 119 -0.12 72
IV.ARRO.EHZ. 2020-11-01T08:33:09.30 0.6 undecidable manual P 229 38.628 50 0.23 45
IV.SAP2.EHZ. 2020-11-01T08:33:09.04 0.6 undecidable manual P 35 39.1275 50 -0.11 46
IV.TERO.HHZ. 2020-11-01T08:33:09.78 0.6 undecidable manual P 117 44.1225 50 -0.13 46
IT.FOPC.HGN. 2020-11-01T08:33:09.19 0.1 undecidable manual P 298 38.7279 50 0.1 93
IV.FEMA.HNZ. 2020-11-01T08:33:08.80 0.3 undecidable manual S 341 18.2706 120 -0.16 71
IV.CSP1.EHZ. 2020-11-01T08:33:08.20 0.3 undecidable manual P 12 32.3454 50 0.1 71
IV.CAMP.HHZ. 2020-11-01T08:33:08.91 0.3 positive manual P 142 37.9287 50 -0.06 70
IV.RM33.EHZ. 2020-11-01T08:33:08.20 0.6 undecidable manual P 167 33.8439 50 -0.14 47
IV.PF6.EHZ. 2020-11-01T08:33:08.81 0.3 undecidable manual P 9 37.1295 50 -0.04 71
IV.MML1.HNZ. 2020-11-01T08:33:08.66 0.3 undecidable manual P 340 36.2415 50 -0.04 71
IV.GUMA.HHZ. 2020-11-01T08:33:08.54 0.1 undecidable manual P 31 33.1446 50 0.31 90
IV.MF5.EHZ. 2020-11-01T08:33:08.58 0.6 undecidable manual P 53 33.8439 50 0.24 46
IV.SMA1.EHZ. 2020-11-01T08:33:07.15 0.3 undecidable manual P 139 26.0517 50 0.02 72
IV.CESI.HHZ. 2020-11-01T08:33:07.49 0.3 undecidable manual P 321 28.3494 50 0 72
IV.FDMO.HHZ. 2020-11-01T08:33:07.04 0.6 undecidable manual P 353 25.6521 50 -0.04 48
IV.MC2.EHZ. 2020-11-01T08:33:07.52 0.3 undecidable manual S 24 12.7761 130 0.15 72
IT.MTCL.HGZ. 2020-11-01T08:33:06.65 0.3 negative manual P 334 23.1546 50 -0.03 73
IV.T1299.HNZ. 2020-11-01T08:33:06.85 0.3 undecidable manual P 146 23.0547 50 0.18 71
IV.GAVE.EHZ. 2020-11-01T08:33:06.60 0.3 undecidable manual P 236 22.6551 50 -0.01 73
IV.MMO1.EHZ. 2020-11-01T08:33:06.06 0.1 positive manual P 58 19.3695 119 0 98
IV.MTRA.EHZ. 2020-11-01T08:33:06.54 0.3 undecidable manual P 104 22.8549 50 -0.1 72
IV.LNSS.HHZ. 2020-11-01T08:33:06.81 0.3 undecidable manual P 197 23.6541 50 0.05 72
IV.MC2.EHZ. 2020-11-01T08:33:05.22 0.3 negative manual P 24 12.7761 130 0.27 70
IV.FEMA.HNZ. 2020-11-01T08:33:05.94 0.3 undecidable manual P 341 18.2706 120 0.08 73
IV.NRCA.HHZ. 2020-11-01T08:33:05.08 0.3 undecidable manual S 344 3.0969 164 -0.37 70
IV.NRCA.HHZ. 2020-11-01T08:33:03.88 0.1 undecidable manual P 344 3.0969 164 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.HNN. ML:1.9 0.0005800000000000001 0.76 AML other m 2020-11-01T08:33:10.68
IV.MTRA.EHN. ML:1.9 0.000515 0.74 AML other m 2020-11-01T08:33:10.68
IV.MTRA.HNE. ML:1.9 0.0004904999999999999 1.82 AML other m 2020-11-01T08:33:10.08
IV.MTRA.EHE. ML:1.9 0.0005365 0.16 AML other m 2020-11-01T08:33:11.08
IV.GAVE.EHN. ML:1.8 0.00041900000000000005 1.56 AML other m 2020-11-01T08:33:11.89
IV.FDMO.HHE. ML:1.7 0.0002585 0.28 AML other m 2020-11-01T08:33:11.11
IV.FDMO.HHN. ML:1.8 0.0003285 0.38 AML other m 2020-11-01T08:33:11.28
IV.GAVE.EHE. ML:1.8 0.00041500000000000006 0.6 AML other m 2020-11-01T08:33:11.04
IV.CESI.HHE. ML:1.9 0.0004365 0.14 AML other m 2020-11-01T08:33:11.90
IV.CESI.HHN. ML:2.2 0.0007484999999999999 0.4 AML other m 2020-11-01T08:33:12.00
IV.SMA1.EHN. ML:1.8 0.00031800000000000003 0.14 AML other m 2020-11-01T08:33:12.18
IV.LNSS.HHE. ML:1.8 0.00036050000000000003 1.08 AML other m 2020-11-01T08:33:12.03
IV.LNSS.HHN. ML:1.6 0.00024249999999999999 0.26 AML other m 2020-11-01T08:33:12.59
IV.GAVE.HNE. ML:1.8 0.00044500000000000003 1.44 AML other m 2020-11-01T08:33:12.04
IV.CSP1.EHE. ML:1.8 0.0003075 0.78 AML other m 2020-11-01T08:33:13.93
IV.SMA1.EHE. ML:1.9 0.000477 0.32 AML other m 2020-11-01T08:33:13.79
IV.CSP1.EHN. ML:1.8 0.000248 1.68 AML other m 2020-11-01T08:33:13.85
IV.GAVE.HNN. ML:1.5 0.00021600000000000002 0.88 AML other m 2020-11-01T08:33:14.52
IV.RM33.EHE. ML:1.6 0.00014900000000000002 0.12 AML other m 2020-11-01T08:33:14.21
IV.RM33.EHN. ML:1.5 0.00014500000000000003 0.98 AML other m 2020-11-01T08:33:14.21
IV.CAMP.HHE. ML:1.6 0.0001363 0.24 AML other m 2020-11-01T08:33:14.55
IV.CAMP.HHN. ML:1.6 0.00013945000000000003 0.28 AML other m 2020-11-01T08:33:14.56
IV.SAP2.EHN. ML:2.4 0.0008209999999999999 0.16 AML other m 2020-11-01T08:33:16.09
IV.SAP2.EHE. ML:1.5 0.00011330000000000002 0.5 AML other m 2020-11-01T08:33:16.10
IV.TERO.HHN. ML:1.9 0.000257 0.08 AML other m 2020-11-01T08:33:16.49
IV.GUMA.HHE. ML:1.8 0.00027649999999999994 0.34 AML other m 2020-11-01T08:33:16.66
IV.GUMA.HHN. ML:1.8 0.0002495 0.26 AML other m 2020-11-01T08:33:16.70
IV.TERO.HHE. ML:1.8 0.0001945 1.18 AML other m 2020-11-01T08:33:17.65
IV.ASSB.HHN. ML:1.6 0.00011549999999999999 1.16 AML other m 2020-11-01T08:33:17.73
IV.MOMA.HHN. ML:1.5 0.0000877 0.48 AML other m 2020-11-01T08:33:18.12
IV.MOMA.HHE. ML:1.7 0.00014150000000000002 0.2 AML other m 2020-11-01T08:33:18.38
IV.MOMA.HNE. ML:1.7 0.0001615 0.2 AML other m 2020-11-01T08:33:18.38
IV.ASSB.HHE. ML:1.7 0.00014399999999999998 0.28 AML other m 2020-11-01T08:33:18.41
IV.MF5.EHE. ML:1.6 0.00015000000000000001 0.46 AML other m 2020-11-01T08:33:19.31
IV.MOMA.HNN. ML:1.9 0.00022099999999999998 0.62 AML other m 2020-11-01T08:33:19.58
IV.SNTG.HHE. ML:1.5 0.00008545 0.16 AML other m 2020-11-01T08:33:19.32
IV.MF5.EHN. ML:1.4 0.00011619999999999999 0.56 AML other m 2020-11-01T08:33:19.53
IV.SNTG.HHN. ML:1.4 0.00006025 0.84 AML other m 2020-11-01T08:33:20.17
IV.ATCC.EHN. ML:1.7 0.0000986 0.64 AML other m 2020-11-01T08:33:20.64
IV.ATCC.EHE. ML:1.6 0.00008185000000000001 0.14 AML other m 2020-11-01T08:33:21.66
IV.EL6.EHE. ML:1.7 0.0001144 0.12 AML other m 2020-11-01T08:33:21.84
IV.EL6.EHN. ML:1.8 0.00013309999999999998 1.5 AML other m 2020-11-01T08:33:21.16
IV.FOSV.EHE. ML:1.3 0.000042050000000000006 0.62 AML other m 2020-11-01T08:33:22.27
IV.FOSV.EHN. ML:1.4 0.000044800000000000005 0.24 AML other m 2020-11-01T08:33:25.22
IV.FAGN.HHN. ML:1.6 0.00007125000000000001 0.24 AML other m 2020-11-01T08:33:26.44
IV.MURB.HHE. ML:2.0 0.00015000000000000001 0.22 AML other m 2020-11-01T08:33:26.57
IV.MURB.HHN. ML:1.8 0.0001079 1.78 AML other m 2020-11-01T08:33:27.03
IV.T0110.HHN. ML:1.7 0.00006604999999999999 0.42 AML other m 2020-11-01T08:33:30.28
IV.FAGN.HHE. ML:1.7 0.0000881 0.3 AML other m 2020-11-01T08:33:30.35
IV.T0110.HHE. ML:1.6 0.00005065 1.5 AML other m 2020-11-01T08:33:32.17
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