Earthquake with magnitude of ML 1.7 on date 22-11-2021 and time 18:51:39 (UTC) in region 1 km E Norcia (PG)

A magnitude ML 1.7 earthquake occured in region: 1 km E Norcia (PG), on

  • 22-11-2021 18:51:39 (UTC)
  • 22-11-2021 19:51:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7910, 13.1080 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 11 724 8898
Castelsantangelo sul Nera MC 12 281 9179
Accumoli RI 16 667 9846
Arquata del Tronto AP 16 1178 11024
Visso MC 16 1107 12131
Cerreto di Spoleto PG 16 1075 13206
Poggiodomo PG 17 117 13323
Ussita MC 17 444 13767
Sellano PG 18 1079 14846
Montegallo AP 19 523 15369
Cittareale RI 20 482 15851
Monteleone di Spoleto PG 20 599 16450

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
46 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 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)
98 Km W of Pescara (121014 inhabitants)
98 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 1.7 2021-11-22
18:51:39
42.7912 13.1078 11 2022-03-30
13:04:41
Bollettino Sismico Italiano INGV 101978741
Reviewed
Rev100
ML 1.7 2021-11-22
18:51:39
42.7942 13.1143 12 2021-11-22
19:01:10
Sala Sismica INGV-Roma 97696721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-22 18:51:39 ± 0.06
Latitude 42.7912 ± 0.0027
Longitude 13.1078 ± 0.0049
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 101978741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 419
Semi-minor axis of confidence ellipse (meter) 239
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 281
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
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 45
Number of defining phases 45
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.04227
Epicentral distance of station farthest from the epicenter (degree) 0.71676
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:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 49
Type of magnitude ML
Reference to an origin 101978741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-14 16:23:53

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 49
Type of magnitude ML
Reference to an origin 97696721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-22 19:01:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2021-11-22T18:52:04.53 0.6 undecidable manual S 350 79.5648 50 1.25 29
IV.FIAM.HHZ. 2021-11-22T18:51:57.82 0.6 undecidable manual S 179 57.9975 50 0.29 45
IV.MOMA.HHZ. 2021-11-22T18:51:54.32 0.6 undecidable manual S 272 43.8228 50 0.59 42
IV.ARVD.HHZ. 2021-11-22T18:51:54.18 0.6 undecidable manual P 350 79.5648 50 0.97 34
IV.MML1.EHZ. 2021-11-22T18:51:52.03 0.6 undecidable manual S 343 37.4292 50 0 49
IV.MF5.EHZ. 2021-11-22T18:51:52.46 0.6 undecidable manual S 53 35.9418 50 0.82 39
IV.CAMP.HHZ. 2021-11-22T18:51:51.87 0.6 undecidable manual S 139 37.5291 50 -0.18 48
IV.MURB.HHZ. 2021-11-22T18:51:51.89 0.3 undecidable manual P 318 70.5738 50 0.07 69
IV.GUMA.HHZ. 2021-11-22T18:51:51.76 0.6 undecidable manual S 31 35.3424 50 0.29 47
IV.RM33.EHZ. 2021-11-22T18:51:50.85 0.6 undecidable manual S 164 32.4453 50 0.14 48
IV.FIAM.HHZ. 2021-11-22T18:51:50.06 0.3 undecidable manual P 179 57.9975 50 0.17 69
IV.CSP1.EHZ. 2021-11-22T18:51:50.90 0.6 undecidable manual S 13 34.2435 50 -0.29 47
IV.CESI.HHZ. 2021-11-22T18:51:49.53 0.6 undecidable manual S 325 28.9488 50 -0.22 48
IV.OFFI.HHZ. 2021-11-22T18:51:49.27 0.3 undecidable manual P 71 49.617 50 0.68 61
IV.EL6.EHZ. 2021-11-22T18:51:49.95 0.3 undecidable manual P 360 59.6958 50 -0.19 69
IV.MNTT.EHZ. 2021-11-22T18:51:49.24 0.3 undecidable manual P 53 49.7169 50 0.63 62
IV.ATCC.EHZ. 2021-11-22T18:51:49.74 0.3 undecidable manual P 319 57.8976 50 -0.13 70
IV.FDMO.HHZ. 2021-11-22T18:51:48.94 0.6 undecidable manual S 357 27.2505 50 -0.38 47
IV.CESX.HHZ. 2021-11-22T18:51:48.07 0.3 undecidable manual P 245 47.0196 50 -0.13 71
IV.MMO1.EHZ. 2021-11-22T18:51:47.48 0.3 undecidable manual S 56 21.4674 116 -0.28 72
IV.TERO.HHZ. 2021-11-22T18:51:47.58 0.1 undecidable manual P 115 44.5221 50 -0.23 93
IV.LNSS.HHZ. 2021-11-22T18:51:47.94 0.3 undecidable manual S 195 21.5673 116 0.15 74
IV.MOMA.HHZ. 2021-11-22T18:51:47.76 0.1 undecidable manual P 272 43.8228 50 0.06 97
IV.GAVE.EHZ. 2021-11-22T18:51:47.56 0.3 undecidable manual S 238 20.5683 117 0.09 75
IV.ASSB.HHZ. 2021-11-22T18:51:47.74 0.1 undecidable manual P 308 45.9207 50 -0.28 92
IV.FEMA.HNZ. 2021-11-22T18:51:47.02 0.3 undecidable manual S 346 19.5693 118 -0.13 75
IV.GUMA.HHZ. 2021-11-22T18:51:46.39 0.3 undecidable manual P 31 35.3424 50 0 75
IV.CAMP.HHZ. 2021-11-22T18:51:46.39 0.3 undecidable manual P 139 37.5291 50 -0.33 69
IV.MC2.EHZ. 2021-11-22T18:51:46.02 0.3 undecidable manual S 26 14.874 125 0.25 74
IV.MML1.EHZ. 2021-11-22T18:51:46.41 0.3 undecidable manual P 343 37.4292 50 -0.31 70
IV.MF5.EHZ. 2021-11-22T18:51:46.61 0.1 undecidable manual P 53 35.9418 50 0.12 97
IV.CESI.HHZ. 2021-11-22T18:51:45.18 0.3 undecidable manual P 325 28.9488 50 -0.22 72
IV.RM33.EHZ. 2021-11-22T18:51:45.74 0.3 undecidable manual P 164 32.4453 50 -0.21 72
IV.CSP1.EHZ. 2021-11-22T18:51:45.99 0.3 undecidable manual P 13 34.2435 50 -0.24 71
IV.GAVE.EHZ. 2021-11-22T18:51:44.17 0.3 undecidable manual P 238 20.5683 117 0.09 75
IV.FDMO.HHZ. 2021-11-22T18:51:44.85 0.3 undecidable manual P 357 27.2505 50 -0.3 71
IV.MTRA.EHZ. 2021-11-22T18:51:44.32 0.3 undecidable manual P 99 23.8539 50 -0.29 72
IV.SMA1.EHZ. 2021-11-22T18:51:44.71 0.3 undecidable manual P 134 25.752 50 -0.2 73
IV.LNSS.HHZ. 2021-11-22T18:51:44.17 0.3 undecidable manual P 195 21.5673 116 -0.09 75
IT.MTCL.HGZ. 2021-11-22T18:51:44.39 0.3 undecidable manual P 339 24.1536 50 -0.28 72
IV.MC2.EHZ. 2021-11-22T18:51:43.21 0.3 undecidable manual P 26 14.874 125 0.11 76
IV.FEMA.HNZ. 2021-11-22T18:51:43.78 0.3 undecidable manual P 346 19.5693 118 -0.12 75
IV.NRCA.HNZ. 2021-11-22T18:51:43.60 0.3 undecidable manual S 6 4.6953 156 0.15 76
IV.MMO1.EHZ. 2021-11-22T18:51:43.96 0.1 undecidable manual P 56 21.4674 116 -0.28 96
IV.NRCA.HNZ. 2021-11-22T18:51:42.00 0.1 undecidable manual P 6 4.6953 156 0.24 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.4 0.0042450000000000005 0.12 AML other m 2021-11-22T18:51:43.65
IV.NRCA.HHN. ML:2.5 0.005 0.14 AML other m 2021-11-22T18:51:43.65
IV.NRCA.HNE. ML:2.6 0.007275 0.18 AML other m 2021-11-22T18:51:43.74
IV.NRCA.HHE. ML:2.6 0.00743 0.18 AML other m 2021-11-22T18:51:43.74
IV.MC2.EHE. ML:2.1 0.0011099999999999999 1.44 AML other m 2021-11-22T18:51:46.19
IV.MC2.EHN. ML:2.0 0.0010915 0.24 AML other m 2021-11-22T18:51:47.99
IV.MMO1.EHE. ML:1.6 0.0002945 0.48 AML other m 2021-11-22T18:51:48.36
IV.MMO1.EHN. ML:1.8 0.00040649999999999996 0.84 AML other m 2021-11-22T18:51:48.68
IV.GAVE.EHE. ML:1.8 0.0004015 0.12 AML other m 2021-11-22T18:51:48.40
IV.LNSS.HHE. ML:1.8 0.00039449999999999994 0.12 AML other m 2021-11-22T18:51:48.63
IV.MTRA.EHN. ML:1.6 0.00022250000000000001 0.36 AML other m 2021-11-22T18:51:48.82
IV.LNSS.HHN. ML:1.7 0.00032599999999999996 0.54 AML other m 2021-11-22T18:51:48.64
IV.MTRA.EHE. ML:1.7 0.0003255 1.24 AML other m 2021-11-22T18:51:49.67
IV.GAVE.EHN. ML:1.7 0.00035499999999999996 1.42 AML other m 2021-11-22T18:51:49.82
IV.FDMO.HHE. ML:1.6 0.000199 0.16 AML other m 2021-11-22T18:51:49.71
IV.CESI.HHN. ML:1.8 0.000296 0.62 AML other m 2021-11-22T18:51:49.79
IV.SMA1.EHE. ML:1.6 0.000254 0.34 AML other m 2021-11-22T18:51:49.98
IV.CESI.HHE. ML:1.5 0.000176 1.1 AML other m 2021-11-22T18:51:50.71
IV.FDMO.HHN. ML:1.4 0.000149 1.08 AML other m 2021-11-22T18:51:51.81
IV.RM33.EHN. ML:1.7 0.000199 0.28 AML other m 2021-11-22T18:51:51.37
IV.RM33.EHE. ML:1.4 0.000113 0.52 AML other m 2021-11-22T18:51:52.26
IV.GUMA.HHE. ML:1.8 0.0002395 1.1 AML other m 2021-11-22T18:51:52.85
IV.CSP1.EHN. ML:2.0 0.00041749999999999996 0.9 AML other m 2021-11-22T18:51:52.38
IV.CSP1.EHE. ML:1.8 0.000261 0.26 AML other m 2021-11-22T18:51:52.61
IV.MML1.EHN. ML:1.4 0.00010025000000000001 0.68 AML other m 2021-11-22T18:51:52.49
IV.CAMP.HHE. ML:1.2 0.000057050000000000004 0.62 AML other m 2021-11-22T18:51:52.87
IV.CAMP.HHN. ML:1.2 0.00005685 0.42 AML other m 2021-11-22T18:51:53.23
IV.SMA1.EHN. ML:1.6 0.000215 1.42 AML other m 2021-11-22T18:51:53.76
IV.GUMA.HHN. ML:1.8 0.0002305 0.78 AML other m 2021-11-22T18:51:54.19
IV.TERO.HNN. ML:1.5 0.00010025398 0.0896 AML other m 2021-11-22T18:51:54.25
IV.MML1.EHE. ML:1.4 0.00009570000000000001 0.7 AML other m 2021-11-22T18:51:54.63
IV.TERO.HNE. ML:1.6 0.0001222216 0.128 AML other m 2021-11-22T18:51:55.21
IV.MOMA.HNE. ML:2.0 0.00027800000000000004 0.26 AML other m 2021-11-22T18:51:55.52
IV.MOMA.HHE. ML:1.9 0.00026949999999999994 0.26 AML other m 2021-11-22T18:51:55.39
IV.ASSB.HHE. ML:1.6 0.000132 0.58 AML other m 2021-11-22T18:51:55.89
IV.ASSB.HHN. ML:1.7 0.00014000000000000001 0.16 AML other m 2021-11-22T18:51:56.09
IV.MOMA.HNN. ML:1.8 0.0001835 0.68 AML other m 2021-11-22T18:51:56.19
IV.MOMA.HHN. ML:1.8 0.000187 0.28 AML other m 2021-11-22T18:51:56.19
IV.CESX.HHE. ML:1.3 0.00006005000000000001 1.48 AML other m 2021-11-22T18:51:56.03
IV.CESX.HHN. ML:1.4 0.0000672 0.76 AML other m 2021-11-22T18:51:57.89
IV.FIAM.HHN. ML:1.2 0.000029199999999999998 1.24 AML other m 2021-11-22T18:51:58.22
IV.ATCC.EHE. ML:1.7 0.00010980000000000001 0.46 AML other m 2021-11-22T18:51:59.38
IV.FIAM.HHE. ML:1.1 0.0000248 0.64 AML other m 2021-11-22T18:51:59.88
IV.ATCC.EHN. ML:1.6 0.00008774999999999999 0.64 AML other m 2021-11-22T18:51:59.57
IV.EL6.EHE. ML:1.8 0.000127 1.34 AML other m 2021-11-22T18:52:00.12
IV.EL6.EHN. ML:1.7 0.000103469795 0.2816 AML other m 2021-11-22T18:52:00.21
IV.MURB.HHE. ML:2.0 0.00017199999999999998 1.26 AML other m 2021-11-22T18:52:04.88
IV.MURB.HHN. ML:2.0 0.0001605 0.96 AML other m 2021-11-22T18:52:04.28
IV.ARVD.HHE. ML:1.0 0.000016016412 0.1792 AML other m 2021-11-22T18:52:05.54
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