Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 02-07-2021 and time 07:59:56 (Italy) in region 1 km E Norcia (PG)

A magnitude ML 1.9 earthquake occured in region: 1 km E Norcia (PG), on

  • 02-07-2021 05:59:56 (UTC)
  • 02-07-2021 07:59:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7960, 13.1060 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
Preci PG 11 724 5681
Cascia PG 11 3217 8898
Castelsantangelo sul Nera MC 12 281 9179
Visso MC 15 1107 10286
Cerreto di Spoleto PG 16 1075 11361
Arquata del Tronto AP 16 1178 12539
Accumoli RI 16 667 13206
Poggiodomo PG 17 117 13323
Ussita MC 17 444 13767
Sellano PG 18 1079 14846
Montegallo AP 19 523 15369

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
46 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
97 Km SW of Ancona (100861 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 1.9 2021-07-02
05:59:56		 42.7958 13.1063 10 2021-12-29
11:12:14		 Bollettino Sismico Italiano INGV 93262271
Reviewed
Rev100 		ML 2.2 2021-07-02
05:59:56		 42.7973 13.1048 11 2021-07-02
06:05:48		 Sala Sismica INGV-Roma 92132351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-02 05:59:56 ± 0.03
Latitude 42.7958 ± 0.0018
Longitude 13.1063 ± 0.0025
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 93262271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 228
Semi-minor axis of confidence ellipse (meter) 94
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 76
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 36
Number of associated phases, regardless of their use for origin computation 71
Number of defining phases 68
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.87054
Number of stations at which the event was observed 43
Number of stations from which data was used for origin computation 40
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 62
Type of magnitude ML
Reference to an origin 93262271
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-01 15:01:36

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 92132351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-02 06:05:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.COLB.HHZ. 2021-07-02T06:00:32.88 3.0 undecidable manual Pn 2.31 0
IV.RMP.HHZ. 2021-07-02T06:00:28.46 3.0 undecidable manual S -2.19 0
IV.CERT.HHZ. 2021-07-02T06:00:26.39 3.0 undecidable manual S 0.15 0
IV.CING.HHZ. 2021-07-02T06:00:16.46 0.3 undecidable manual S 6 64.6908 50 0.2 67
IV.EL6.EHZ. 2021-07-02T06:00:15.01 0.3 undecidable manual S 360 59.1963 50 0.22 67
IV.MPAG.EHZ. 2021-07-02T06:00:12.95 0.6 undecidable manual P 343 96.6255 50 0.2 42
IV.PIEI.HHZ. 2021-07-02T06:00:12.58 0.3 undecidable manual P 331 94.239 50 0.2 63
IV.ASSB.HHZ. 2021-07-02T06:00:11.02 0.3 undecidable manual S 307 45.5211 50 -0.12 70
IV.MOMA.HHZ. 2021-07-02T06:00:11.07 0.3 undecidable manual S 271 43.623 50 0.43 66
IV.ATVO.HHZ. 2021-07-02T06:00:11.10 0.6 undecidable manual P 319 86.247 50 -0.06 44
IV.CESX.HHZ. 2021-07-02T06:00:11.66 0.3 undecidable manual S 244 47.2194 50 0.08 71
IV.FRON.EHZ. 2021-07-02T06:00:11.05 0.6 undecidable manual P 339 85.8474 50 -0.03 44
IV.TERO.HHZ. 2021-07-02T06:00:10.77 0.3 undecidable manual S 115 44.9217 50 -0.2 69
IV.T0110.HHZ. 2021-07-02T06:00:10.53 0.3 undecidable manual P 139 83.3499 50 -0.18 65
IV.SAP2.EHZ. 2021-07-02T06:00:10.10 0.3 undecidable manual S 35 40.9257 50 0.17 70
IV.MDAR.HNZ. 2021-07-02T06:00:10.79 0.6 undecidable manual S 4 44.1225 50 0.02 48
IV.SEF1.HNZ. 2021-07-02T06:00:09.80 0.6 undecidable manual S 342 41.0256 50 -0.13 47
IV.MF5.EHZ. 2021-07-02T06:00:09.49 0.6 undecidable manual S 53 35.742 50 0.96 36
IV.ATFO.HHZ. 2021-07-02T06:00:09.78 0.3 undecidable manual P 326 76.7676 50 0.09 67
IV.PF6.EHZ. 2021-07-02T06:00:09.06 0.3 undecidable manual S 11 38.628 50 -0.23 70
IV.VCEL.EHZ. 2021-07-02T06:00:09.21 0.3 undecidable manual P 126 74.6697 50 -0.16 66
IV.MURB.HHZ. 2021-07-02T06:00:08.73 0.3 undecidable manual P 318 70.0743 50 0.07 68
IV.CAMP.HHZ. 2021-07-02T06:00:08.95 0.3 undecidable manual S 139 37.9287 50 -0.17 71
IV.MML1.HNZ. 2021-07-02T06:00:08.62 0.6 undecidable manual S 343 36.9297 50 -0.22 47
IV.GUMA.HHZ. 2021-07-02T06:00:08.70 0.3 undecidable manual S 32 34.9428 50 0.38 68
IV.FOSV.EHZ. 2021-07-02T06:00:07.32 0.3 undecidable manual P 333 61.9935 50 -0.1 69
IV.RM33.EHZ. 2021-07-02T06:00:07.80 0.3 undecidable manual S 164 33.0447 50 0 74
IV.CSP1.EHZ. 2021-07-02T06:00:07.96 0.3 undecidable manual S 14 33.8439 50 -0.05 73
IV.CING.HHZ. 2021-07-02T06:00:07.79 0.3 undecidable manual P 6 64.6908 50 -0.05 69
IV.EL6.EHZ. 2021-07-02T06:00:06.88 0.3 undecidable manual P 360 59.1963 50 -0.1 69
IV.CESI.HHZ. 2021-07-02T06:00:06.40 0.3 undecidable manual S 325 28.4493 50 -0.17 72
IV.ATCC.EHZ. 2021-07-02T06:00:06.64 0.3 undecidable manual P 319 57.3981 50 -0.07 70
IV.OFFI.HHZ. 2021-07-02T06:00:06.36 0.3 undecidable manual P 72 49.617 50 0.86 56
IV.T1299.HNZ. 2021-07-02T06:00:05.35 0.3 undecidable manual S 141 22.9548 114 0.32 70
IV.CESX.HHZ. 2021-07-02T06:00:05.59 0.6 undecidable manual P 244 47.2194 50 0.46 44
IV.FDMO.HHZ. 2021-07-02T06:00:05.81 0.1 undecidable manual S 357 26.751 50 -0.31 93
IT.MTCL.HGZ. 2021-07-02T06:00:05.07 0.3 undecidable manual S 338 23.6541 113 -0.17 72
IV.MTRA.HNZ. 2021-07-02T06:00:05.17 0.3 undecidable manual S 100 24.0537 113 -0.2 72
IV.SMA1.EHZ. 2021-07-02T06:00:05.82 0.3 undecidable manual S 134 26.1516 50 -0.15 72
IV.LNSS.HHZ. 2021-07-02T06:00:04.68 0.3 undecidable manual S 194 22.0668 115 -0.07 74
IV.MDAR.HNZ. 2021-07-02T06:00:04.51 0.3 undecidable manual P 4 44.1225 50 -0.15 70
IV.TERO.HHZ. 2021-07-02T06:00:04.46 0.1 undecidable manual P 115 44.9217 50 -0.31 90
IV.SEF1.HNZ. 2021-07-02T06:00:04.08 0.3 undecidable manual P 342 41.0256 50 -0.1 71
IV.ASSB.HHZ. 2021-07-02T06:00:04.66 0.3 undecidable manual P 307 45.5211 50 -0.22 69
IV.SAP2.EHZ. 2021-07-02T06:00:04.38 0.6 undecidable manual P 35 40.9257 50 0.21 46
IV.MMO1.EHZ. 2021-07-02T06:00:04.39 0.3 undecidable manual S 57 21.2676 115 -0.11 74
IV.MOMA.HHZ. 2021-07-02T06:00:04.57 0.3 undecidable manual P 271 43.623 50 -0.02 72
IV.GAVE.EHZ. 2021-07-02T06:00:04.44 0.3 undecidable manual S 236 20.7681 116 0.1 74
IV.PF6.EHZ. 2021-07-02T06:00:03.72 0.1 undecidable manual P 11 38.628 50 -0.09 96
IV.GUMA.HHZ. 2021-07-02T06:00:03.54 0.3 undecidable manual P 32 34.9428 50 0.29 69
IV.MML1.HNZ. 2021-07-02T06:00:03.42 0.1 undecidable manual P 343 36.9297 50 -0.13 95
IV.CAMP.HHZ. 2021-07-02T06:00:03.50 0.3 undecidable manual P 139 37.9287 50 -0.21 70
IV.MF5.EHZ. 2021-07-02T06:00:03.86 0.1 undecidable manual P 53 35.742 50 0.49 88
IV.FEMA.HNZ. 2021-07-02T06:00:03.79 0.3 undecidable manual S 346 18.9699 118 -0.01 75
IV.ARRO.EHZ. 2021-07-02T06:00:03.51 0.3 undecidable manual P 229 36.741 50 -0.01 73
IV.CSP1.EHZ. 2021-07-02T06:00:02.95 0.1 undecidable manual P 14 33.8439 50 -0.12 96
IV.MC2.EHZ. 2021-07-02T06:00:02.12 0.3 undecidable manual S 28 14.4744 125 -0.33 71
IV.CESI.HHZ. 2021-07-02T06:00:02.19 0.1 undecidable manual P 325 28.4493 50 -0.05 98
IV.RM33.EHZ. 2021-07-02T06:00:02.74 0.1 undecidable manual P 164 33.0447 50 -0.21 94
IV.MMO1.EHZ. 2021-07-02T06:00:01.03 0.1 undecidable manual P 57 21.2676 115 -0.01 100
IV.MTRA.HNZ. 2021-07-02T06:00:01.42 0.1 undecidable manual P 100 24.0537 113 -0.12 97
IV.GAVE.EHZ. 2021-07-02T06:00:01.07 0.1 undecidable manual P 236 20.7681 116 0.12 98
IV.SMA1.EHZ. 2021-07-02T06:00:01.79 0.1 undecidable manual P 134 26.1516 50 -0.1 97
IV.T1299.HNZ. 2021-07-02T06:00:01.45 0.1 undecidable manual P 141 22.9548 114 0.1 98
IV.LNSS.HHZ. 2021-07-02T06:00:01.21 0.1 undecidable manual P 194 22.0668 115 0.03 100
IV.FDMO.HHZ. 2021-07-02T06:00:01.88 0.1 undecidable manual P 357 26.751 50 -0.1 97
IT.MTCL.HGZ. 2021-07-02T06:00:01.30 0.1 undecidable manual P 338 23.6541 113 -0.17 96
IV.FEMA.HNZ. 2021-07-02T06:00:00.70 0.1 undecidable manual P 346 18.9699 118 0.06 99
IV.NRCA.HHZ. 2021-07-02T06:00:00.04 0.3 undecidable manual S 9 4.1958 157 -0.09 76
IV.MC2.EHZ. 2021-07-02T06:00:00.16 0.1 undecidable manual P 28 14.4744 125 0.3 95
IV.NRCA.HHZ. 2021-07-02T05:59:58.75 0.1 undecidable manual P 9 4.1958 157 0.23 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:3.1 0.0216 0.08 AML other m 2021-07-02T06:00:00.08
IV.NRCA.HHE. ML:3.1 0.02195 0.08 AML other m 2021-07-02T06:00:00.08
IV.NRCA.HHN. ML:3.2 0.029 0.08 AML other m 2021-07-02T06:00:00.11
IV.NRCA.HNN. ML:3.2 0.02435 0.08 AML other m 2021-07-02T06:00:00.11
IV.GAVE.EHN. ML:2.2 0.0011825000000000002 0.2 AML other m 2021-07-02T06:00:04.80
IV.GAVE.EHE. ML:2.2 0.0012900000000000001 0.28 AML other m 2021-07-02T06:00:05.34
IV.LNSS.HHE. ML:2.2 0.0010574999999999998 0.1 AML other m 2021-07-02T06:00:05.56
IV.LNSS.HHN. ML:2.3 0.001305 1.3 AML other m 2021-07-02T06:00:06.67
IV.MTRA.HNN. ML:2.4 0.0014199999999999998 0.16 AML other m 2021-07-02T06:00:06.11
IV.MTRA.EHN. ML:2.4 0.001465 0.16 AML other m 2021-07-02T06:00:06.04
IV.CESI.HHN. ML:2.0 0.0005215 0.28 AML other m 2021-07-02T06:00:06.66
IV.MTRA.HNE. ML:2.5 0.001825 1.5 AML other m 2021-07-02T06:00:06.04
IV.MTRA.EHE. ML:2.5 0.001815 1.5 AML other m 2021-07-02T06:00:06.04
IV.SMA1.EHN. ML:2.1 0.0006605 0.26 AML other m 2021-07-02T06:00:06.85
IV.CESI.HHE. ML:1.9 0.00037549999999999997 0.1 AML other m 2021-07-02T06:00:07.75
IV.RM33.HNN. ML:2.0 0.000438 0.62 AML other m 2021-07-02T06:00:08.31
IV.RM33.EHN. ML:1.9 0.000366 0.14 AML other m 2021-07-02T06:00:08.31
IV.CSP1.EHE. ML:2.3 0.0008125 0.92 AML other m 2021-07-02T06:00:09.46
IV.RM33.EHE. ML:2.0 0.00042500000000000003 0.88 AML other m 2021-07-02T06:00:09.26
IV.RM33.HNE. ML:2.0 0.0004365 0.88 AML other m 2021-07-02T06:00:09.26
IV.SMA1.EHE. ML:2.1 0.000655 0.36 AML other m 2021-07-02T06:00:09.52
IV.CAMP.HHN. ML:1.5 0.00010495 0.76 AML other m 2021-07-02T06:00:09.75
IV.GUMA.HHN. ML:2.0 0.0004 0.98 AML other m 2021-07-02T06:00:10.72
IV.CSP1.EHN. ML:2.2 0.0007709999999999999 0.26 AML other m 2021-07-02T06:00:10.27
IV.ARRO.EHE. ML:1.6 0.0001375 1.4 AML other m 2021-07-02T06:00:10.09
IV.CAMP.HHE. ML:1.4 0.00009190000000000001 0.74 AML other m 2021-07-02T06:00:10.49
IV.SAP2.EHN. ML:2.6 0.0012749999999999999 0.14 AML other m 2021-07-02T06:00:11.20
IV.ARRO.EHN. ML:1.6 0.0001395 0.22 AML other m 2021-07-02T06:00:11.26
IV.SAP2.EHE. ML:1.8 0.0002065 1.2 AML other m 2021-07-02T06:00:11.28
IV.GUMA.HHE. ML:2.1 0.000587 0.48 AML other m 2021-07-02T06:00:12.02
IV.MOMA.HHE. ML:1.9 0.00026149999999999996 0.22 AML other m 2021-07-02T06:00:12.66
IV.TERO.HHN. ML:1.8 0.000203 1.62 AML other m 2021-07-02T06:00:12.04
IV.ASSB.HHN. ML:1.9 0.0002545 1.46 AML other m 2021-07-02T06:00:12.92
IV.TERO.HHE. ML:1.8 0.00020999999999999998 0.14 AML other m 2021-07-02T06:00:13.13
IV.MOMA.HHN. ML:1.6 0.000127 0.56 AML other m 2021-07-02T06:00:13.66
IV.ASSB.HHE. ML:1.8 0.00019250000000000002 1.34 AML other m 2021-07-02T06:00:14.05
IV.CESX.HHE. ML:1.6 0.00011025000000000001 0.5 AML other m 2021-07-02T06:00:14.63
IV.CESX.HHN. ML:1.6 0.0001137 1 AML other m 2021-07-02T06:00:15.00
IV.ATCC.EHN. ML:1.7 0.0001017 0.36 AML other m 2021-07-02T06:00:15.85
IV.OFFI.HHE. ML:1.8 0.0001835 0.74 AML other m 2021-07-02T06:00:16.54
IV.OFFI.HHN. ML:2.0 0.000248 0.24 AML other m 2021-07-02T06:00:16.52
IV.EL6.EHN. ML:1.9 0.000176 0.3 AML other m 2021-07-02T06:00:16.81
IV.EL6.EHE. ML:2.2 0.0003005 1.84 AML other m 2021-07-02T06:00:17.05
IV.ATCC.EHE. ML:1.8 0.000123 0.62 AML other m 2021-07-02T06:00:17.06
IV.FOSV.EHE. ML:1.4 0.0000523 0.7 AML other m 2021-07-02T06:00:18.00
IV.CING.HHE. ML:1.8 0.00010444999999999999 0.42 AML other m 2021-07-02T06:00:18.36
IV.CING.HHN. ML:1.6 0.00007230000000000001 0.6 AML other m 2021-07-02T06:00:18.90
IV.MURB.HHE. ML:2.2 0.00023249999999999999 0.2 AML other m 2021-07-02T06:00:21.41
IV.ATFO.HHN. ML:1.7 0.00007145 0.96 AML other m 2021-07-02T06:00:22.79
IV.MURB.HHN. ML:2.1 0.0002295 0.2 AML other m 2021-07-02T06:00:22.43
IV.FOSV.EHN. ML:1.5 0.0000617 0.56 AML other m 2021-07-02T06:00:22.54
IV.VCEL.EHN. ML:1.8 0.00009745000000000001 1.34 AML other m 2021-07-02T06:00:23.13
IV.ATFO.HHE. ML:1.5 0.00004455 0.98 AML other m 2021-07-02T06:00:23.48
IV.FRON.EHE. ML:1.4 0.0000322 1.24 AML other m 2021-07-02T06:00:25.04
IV.VCEL.EHE. ML:1.8 0.00008925 0.42 AML other m 2021-07-02T06:00:26.71
IV.FRON.EHN. ML:1.6 0.00005 1.58 AML other m 2021-07-02T06:00:28.18
IV.PIEI.HHN. ML:1.4 0.0000249 1.26 AML other m 2021-07-02T06:00:29.20
IV.PIEI.HHE. ML:1.5 0.00003315 0.28 AML other m 2021-07-02T06:00:30.70
IV.MPAG.EHE. ML:1.4 0.000027199999999999997 1.58 AML other m 2021-07-02T06:00:30.98
IV.T0110.HHN. ML:1.7 0.00006254999999999999 0.66 AML other m 2021-07-02T06:00:33.42
IV.MPAG.EHN. ML:1.5 0.00003505 1.04 AML other m 2021-07-02T06:00:33.34
IV.T0110.HHE. ML:1.7 0.00005824999999999999 1.24 AML other m 2021-07-02T06:00:35.19
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
Waveforms Seismic signals in miniseed + resp format Download