Earthquake with magnitude of ML 1.6 on date 03-07-2021 and time 15:21:27 (Italy) in region 1 km SE Norcia (PG)

A magnitude ML 1.6 earthquake occured in region: 1 km SE Norcia (PG), on

  • 03-07-2021 13:21:27 (UTC)
  • 03-07-2021 15:21:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.786, 13.107 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.

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 11 3217 8174
Preci PG 12 724 8898
Castelsantangelo sul Nera MC 13 281 9179
Accumoli RI 15 667 9846
Arquata del Tronto AP 16 1178 11024
Cerreto di Spoleto PG 16 1075 12099
Poggiodomo PG 16 117 12216
Visso MC 16 1107 13323
Ussita MC 18 444 13767
Sellano PG 19 1079 14846
Cittareale RI 19 482 15328
Monteleone di Spoleto PG 20 599 15927
Montegallo AP 20 523 16450

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)
69 Km SE of Perugia (166134 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km N of Tivoli (56533 inhabitants)
97 Km W of Pescara (121014 inhabitants)
98 Km SW of Ancona (100861 inhabitants)
99 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 1.6 2021-07-03
13:21:27
42.7858 13.1068 10 2021-12-29
11:12:14
Bollettino Sismico Italiano INGV 93176711
Reviewed
Rev100
ML 1.7 2021-07-03
13:21:27
42.7835 13.1072 9 2021-07-03
13:29:17
Sala Sismica INGV-Roma 92190951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-03 13:21:27 ± 0.03
Latitude 42.7858 ± 0.0018
Longitude 13.1068 ± 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 93176711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 254
Semi-minor axis of confidence ellipse (meter) 161
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.74284
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 93176711
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-25 02:24:58

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 92190951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-03 13:29:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.T0110.HHZ. 2021-07-03T13:21:42.25 0.6 undecidable manual P 138 0.7428 50 0.11 44
IV.PF6.EHN. 2021-07-03T13:21:41.30 0.6 undecidable manual S 10 0.3579 50 0.14 47
IV.GUMA.HHZ. 2021-07-03T13:21:40.79 0.6 undecidable manual S 31 0.3229 50 0.64 42
IV.CSP1.EHZ. 2021-07-03T13:21:39.96 0.3 undecidable manual S 13 0.3139 50 0.09 72
IV.FOSV.EHZ. 2021-07-03T13:21:39.07 0.6 undecidable manual P 334 0.5675 50 -0.07 46
IV.RM33.EHZ. 2021-07-03T13:21:38.84 0.6 undecidable manual S 164 0.2878 50 -0.25 47
IV.ATCC.EHZ. 2021-07-03T13:21:38.41 0.6 undecidable manual P 320 0.5252 50 0 47
IV.CESI.HHZ. 2021-07-03T13:21:38.36 0.3 undecidable manual S 326 0.2644 50 -0.04 74
IV.EL6.EHZ. 2021-07-03T13:21:38.72 0.3 undecidable manual P 360 0.5432 50 0 70
IV.SMA1.EHZ. 2021-07-03T13:21:37.31 0.6 undecidable manual S 133 0.2284 111 -0.01 50
IV.FDMO.HHZ. 2021-07-03T13:21:37.74 0.6 undecidable manual S 357 0.2509 50 -0.26 47
IV.MTRA.EHZ. 2021-07-03T13:21:36.62 0.3 undecidable manual S 98 0.214 113 -0.2 72
IV.MOMA.HHZ. 2021-07-03T13:21:36.35 0.6 undecidable manual P 273 0.3939 50 0.19 47
IT.MTCL.HGZ. 2021-07-03T13:21:36.85 0.6 undecidable manual S 339 0.2221 112 -0.25 48
IV.T1299.HNN. 2021-07-03T13:21:36.61 0.6 undecidable manual S 140 0.1988 114 0.34 47
IV.TERO.HHZ. 2021-07-03T13:21:36.11 0.3 undecidable manual P 114 0.4002 50 -0.15 70
IV.MMO1.EHZ. 2021-07-03T13:21:36.07 0.1 undecidable manual S 55 0.197 114 -0.14 98
IV.ASSB.HHZ. 2021-07-03T13:21:36.34 0.6 undecidable manual P 308 0.4164 50 -0.21 46
IV.CESX.HHE. 2021-07-03T13:21:36.41 0.6 undecidable manual P 245 0.4209 50 -0.22 46
IV.MML1.HNE. 2021-07-03T13:21:35.06 0.1 undecidable manual P 343 0.3417 50 -0.22 94
IV.GAVE.EHZ. 2021-07-03T13:21:35.61 0.3 undecidable manual S 239 0.1817 116 -0.07 75
IV.PF6.EHN. 2021-07-03T13:21:35.49 0.1 undecidable manual P 10 0.3579 50 -0.05 96
IV.GUMA.HHZ. 2021-07-03T13:21:35.26 0.1 undecidable manual P 31 0.3229 50 0.31 92
IV.FEMA.HNE. 2021-07-03T13:21:35.62 0.6 undecidable manual S 347 0.1808 116 -0.03 50
IV.LNSS.HHZ. 2021-07-03T13:21:35.93 0.3 undecidable manual S 195 0.1889 115 0 76
IV.MF5.EHZ. 2021-07-03T13:21:35.59 0.3 undecidable manual P 52 0.3283 50 0.56 65
IV.SAP2.EHE. 2021-07-03T13:21:35.12 1.0 undecidable manual P 34 0.3768 50 -0.75 20
IV.RM33.EHZ. 2021-07-03T13:21:34.18 0.3 undecidable manual P 164 0.2878 50 -0.17 72
IV.CSP1.EHZ. 2021-07-03T13:21:34.83 0.1 undecidable manual P 13 0.3139 50 0.03 98
IV.CAMP.HHE. 2021-07-03T13:21:34.83 0.1 undecidable manual P 138 0.3345 50 -0.31 92
IV.ARRO.EHZ. 2021-07-03T13:21:34.96 0.6 undecidable manual P 231 0.3247 50 -0.02 49
IV.CESI.HHZ. 2021-07-03T13:21:33.96 0.1 positive manual P 326 0.2644 50 0.01 99
IT.MTCL.HGZ. 2021-07-03T13:21:33.16 0.1 undecidable manual P 339 0.2221 112 -0.04 99
IV.SMA1.EHZ. 2021-07-03T13:21:33.23 0.1 undecidable manual P 133 0.2284 111 -0.09 98
IV.FDMO.HHZ. 2021-07-03T13:21:33.66 0.6 undecidable manual P 357 0.2509 50 -0.06 49
IV.LNSS.HHZ. 2021-07-03T13:21:32.70 0.1 undecidable manual P 195 0.1889 115 0.18 97
IV.MTRA.EHZ. 2021-07-03T13:21:32.94 0.1 undecidable manual P 98 0.214 113 -0.09 98
IV.GAVE.EHZ. 2021-07-03T13:21:32.61 0.1 undecidable manual P 239 0.1817 116 0.23 96
IV.T1299.HNN. 2021-07-03T13:21:32.95 0.1 undecidable manual P 140 0.1988 114 0.23 96
IV.MMO1.EHZ. 2021-07-03T13:21:32.65 0.1 undecidable manual P 55 0.197 114 -0.03 100
IV.FEMA.HNE. 2021-07-03T13:21:32.49 0.1 undecidable manual P 347 0.1808 116 0.13 98
IV.NRCA.HNZ. 2021-07-03T13:21:31.59 0.1 undecidable manual S 6 0.0477 152 -0.19 99
IV.NRCA.HNZ. 2021-07-03T13:21:30.34 0.1 negative manual P 6 0.0477 152 0.21 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.4 0.004091338 0.096 AML other m 2021-07-03T13:21:31.74
IV.NRCA.HHE. ML:2.4 0.0042422785 0.096 AML other m 2021-07-03T13:21:31.83
IV.NRCA.HNN. ML:2.5 0.00476 0.14 AML other m 2021-07-03T13:21:31.65
IV.NRCA.HHN. ML:2.5 0.0054670845 0.1408 AML other m 2021-07-03T13:21:31.64
IV.GAVE.HNN. ML:1.4 0.00018753455 0.384 AML other m 2021-07-03T13:21:35.74
IV.GAVE.EHN. ML:1.7 0.0003865 0.2 AML other m 2021-07-03T13:21:36.21
IV.LNSS.HHN. ML:1.8 0.00047265015 0.1408 AML other m 2021-07-03T13:21:36.44
IV.LNSS.HHE. ML:2 0.000652 0.12 AML other m 2021-07-03T13:21:36.74
IV.GAVE.HNE. ML:2 0.0006658396 0.16 AML other m 2021-07-03T13:21:36.95
IV.GAVE.EHE. ML:1.9 0.000646 0.16 AML other m 2021-07-03T13:21:36.87
IV.MTRA.HNE. ML:1.9 0.00053786635 0.64 AML other m 2021-07-03T13:21:37.36
IV.MTRA.EHE. ML:1.9 0.000523 0.64 AML other m 2021-07-03T13:21:37.36
IV.MTRA.EHN. ML:1.7 0.00029297525 0.2048 AML other m 2021-07-03T13:21:38.62
IV.MTRA.HNN. ML:1.7 0.0003028102 0.2112 AML other m 2021-07-03T13:21:38.61
IV.FDMO.HHE. ML:1.4 0.000142 0.22 AML other m 2021-07-03T13:21:38.28
IV.SMA1.EHN. ML:1.6 0.0002575 0.14 AML other m 2021-07-03T13:21:38.28
IV.FDMO.HHN. ML:1.5 0.0001795 0.22 AML other m 2021-07-03T13:21:38.58
IV.CESI.HHE. ML:1.4 0.0001275 0.48 AML other m 2021-07-03T13:21:38.58
IV.RM33.EHN. ML:1.8 0.0002535 0.1 AML other m 2021-07-03T13:21:39.33
IV.CESI.HHN. ML:1.5 0.00014958185 0.16 AML other m 2021-07-03T13:21:39.42
IV.RM33.EHE. ML:1.6 0.0001753446 0.1408 AML other m 2021-07-03T13:21:40.36
IV.CSP1.EHE. ML:1.6 0.000168747095 0.16 AML other m 2021-07-03T13:21:40.58
IV.SMA1.EHE. ML:1.7 0.0002954163 0.48 AML other m 2021-07-03T13:21:40.62
IV.ARRO.EHE. ML:1.2 6.22E-5 0.18 AML other m 2021-07-03T13:21:41.02
IV.CSP1.EHN. ML:1.7 0.00019503175 0.1216 AML other m 2021-07-03T13:21:40.79
IV.GUMA.HHE. ML:1.6 0.00014750455 0.1984 AML other m 2021-07-03T13:21:41.26
IV.ARRO.EHN. ML:1.2 6.875E-5 1.86 AML other m 2021-07-03T13:21:41.97
IV.MOMA.HHE. ML:1.7 0.00013882845 0.256 AML other m 2021-07-03T13:21:44.47
IV.GUMA.HHN. ML:1.5 0.000129686345 0.224 AML other m 2021-07-03T13:21:44.56
IV.MOMA.HHN. ML:1.9 0.000233 0.2 AML other m 2021-07-03T13:21:44.56
IV.ASSB.HHN. ML:1.2 4.3732405E-5 0.1024 AML other m 2021-07-03T13:21:45.17
IV.ASSB.HHE. ML:1.2 4.7842015E-5 0.16 AML other m 2021-07-03T13:21:45.42
IV.ATCC.EHE. ML:1.2 3.631702E-5 0.1408 AML other m 2021-07-03T13:21:48.22
IV.ATCC.EHN. ML:1.2 3.157019E-5 0.1152 AML other m 2021-07-03T13:21:48.76
IV.FOSV.EHE. ML:0.9 1.3742265E-5 0.2432 AML other m 2021-07-03T13:21:55.26
IV.FOSV.EHN. ML:1.1 2.52E-5 0.46 AML other m 2021-07-03T13:21:58.45
IV.LNSS.HNN. ML:1.8 0.00043255865 0.1408 AML other m 2021-07-03T13:21:36.44
IV.LNSS.HNE. ML:1.9 0.00057387525 0.1216 AML other m 2021-07-03T13:21:36.74
IV.CESI.HNE. ML:1.4 0.000128892 0.192 AML other m 2021-07-03T13:21:38.58
IV.CESI.HNN. ML:1.5 0.0001545626 0.3008 AML other m 2021-07-03T13:21:42.03
IV.RM33.HNE. ML:1.7 0.0002159963 0.16 AML other m 2021-07-03T13:21:40.36
IV.RM33.HNN. ML:1.8 0.0002574621 0.1024 AML other m 2021-07-03T13:21:39.32
IV.MF5.EHN. ML:1.3 7.107853E-5 0.32 AML other m 2021-07-03T13:21:42.19
IV.MF5.EHE. ML:1.3 8.3704785E-5 0.2176 AML other m 2021-07-03T13:21:41.87
IV.TERO.HNE. ML:1.5 0.00010249852 0.0768 AML other m 2021-07-03T13:21:42.98
IV.TERO.HNN. ML:1.6 0.00011512145 0.5568 AML other m 2021-07-03T13:21:42.84
IV.TERO.HHE. ML:1.4 7.6151905E-5 0.1216 AML other m 2021-07-03T13:21:42.98
IV.TERO.HHN. ML:1.6 0.000120415865 0.0832 AML other m 2021-07-03T13:21:42.84
IV.MOMA.HNE. ML:1.7 0.00014426531 0.1856 AML other m 2021-07-03T13:21:44.57
IV.MOMA.HNN. ML:2 0.00029669095 0.7168 AML other m 2021-07-03T13:21:48.50
IV.T0110.HHN. ML:1.3 2.645147E-5 0.2368 AML other m 2021-07-03T13:21:56.31
IV.T0110.HHE. ML:1.3 2.5098175E-5 0.384 AML other m 2021-07-03T13:22:09.23
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