Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 13-04-2023 and time 04:10:04 (UTC) in region 7 km SE Norcia (PG)

A magnitude ML 1.5 earthquake occured in region: 7 km SE Norcia (PG), on

  • 13-04-2023 04:10:04 (UTC)
  • 13-04-2023 06:10:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7480, 13.1580 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 7 4957 4957
Accumoli RI 10 667 5624
Arquata del Tronto AP 12 1178 6802
Cascia PG 12 3217 10019
Cittareale RI 14 482 10501
Castelsantangelo sul Nera MC 16 281 10782
Amatrice RI 17 2657 13439
Preci PG 18 724 14163
Montegallo AP 18 523 14686
Poggiodomo PG 19 117 14803
Monteleone di Spoleto PG 20 599 15402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km SE of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
48 Km NW of L'Aquila (69753 inhabitants)
74 Km SE of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km W of Pescara (121014 inhabitants)
92 Km NE of Tivoli (56533 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
94 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 1.5 2023-04-13
04:10:04		 42.7482 13.1575 10 2024-03-01
17:18:11		 Bollettino Sismico Italiano INGV 118336251
Reviewed
Rev100 		ML 1.7 2023-04-13
04:10:04		 42.7507 13.1613 12 2023-04-13
04:35:10		 Sala Sismica INGV-Roma 116329421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-13 04:10:04 ± 0.05
Latitude 42.7482 ± 0.0027
Longitude 13.1575 ± 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 118336251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 259
Semi-minor axis of confidence ellipse (meter) 181
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
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) 44
Number of associated phases, regardless of their use for origin computation 60
Number of defining phases 60
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.09083
Epicentral distance of station farthest from the epicenter (degree) 0.83817
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 116329421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-13 04:35:10

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 68
Type of magnitude ML
Reference to an origin 118336251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-14 10:57:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T0110.HHZ. 2023-04-13T04:10:27.91 0.6 undecidable manual S 138 76.6677 50 0.68 38
IV.CING.HHZ. 2023-04-13T04:10:26.36 0.3 undecidable manual S 3 69.6747 50 0.99 50
IV.VCEL.EHZ. 2023-04-13T04:10:25.73 0.3 undecidable manual S 125 68.1762 50 0.75 56
IV.FAGN.HHZ. 2023-04-13T04:10:24.52 0.3 undecidable manual S 147 63.8916 50 0.7 58
IV.SNTG.HHZ. 2023-04-13T04:10:22.66 0.3 undecidable manual S 343 58.8966 50 0.16 68
IV.ASSB.HHZ. 2023-04-13T04:10:20.96 0.6 undecidable manual S 309 52.0035 50 0.29 45
IV.CESX.HHZ. 2023-04-13T04:10:20.24 0.3 undecidable manual S 252 49.0176 50 0.37 66
IV.ATVO.HHZ. 2023-04-13T04:10:19.86 0.3 undecidable manual P 319 93.0402 50 -0.14 64
IV.MOMA.HHZ. 2023-04-13T04:10:19.75 0.3 undecidable manual S 278 48.2184 50 0.1 70
IV.MML1.EHZ. 2023-04-13T04:10:18.25 0.3 undecidable manual S 340 43.2234 50 -0.07 71
IV.GIGS.HHZ. 2023-04-13T04:10:18.81 0.3 undecidable manual S 134 47.1195 50 -0.54 63
IV.GUMA.HHZ. 2023-04-13T04:10:17.50 0.3 undecidable manual S 22 37.7289 50 0.65 62
IV.MF5.EHZ. 2023-04-13T04:10:17.32 0.3 undecidable manual S 43 36.2415 50 0.88 56
IV.T0110.HHZ. 2023-04-13T04:10:17.45 0.3 undecidable manual P 138 76.6677 50 -0.03 67
IV.TERO.HHZ. 2023-04-13T04:10:16.85 0.3 undecidable manual S 111 38.9277 50 -0.33 68
IV.CING.HHZ. 2023-04-13T04:10:16.69 0.3 undecidable manual P 3 69.6747 50 0.28 65
IV.VCEL.EHZ. 2023-04-13T04:10:16.28 0.3 undecidable manual P 125 68.1762 50 0.1 68
IV.ARRO.EHZ. 2023-04-13T04:10:16.46 0.3 undecidable manual S 240 37.0296 50 -0.2 70
IV.CSP1.EHZ. 2023-04-13T04:10:16.86 0.3 undecidable manual S 6 38.3283 50 -0.14 71
IV.FAGN.HHZ. 2023-04-13T04:10:15.22 0.6 undecidable manual P 147 63.8916 50 -0.29 44
IV.EL6.EHZ. 2023-04-13T04:10:15.41 1.0 undecidable manual P 356 64.5909 50 -0.22 22
IV.FDMO.HHZ. 2023-04-13T04:10:15.06 0.3 undecidable manual S 350 32.4453 50 -0.38 68
IV.CESI.HHZ. 2023-04-13T04:10:15.89 0.3 undecidable manual S 324 35.1426 50 -0.26 69
IV.CAMP.HHZ. 2023-04-13T04:10:14.89 0.3 undecidable manual S 139 31.2465 50 -0.22 70
IV.SNTG.HHZ. 2023-04-13T04:10:14.44 0.3 undecidable manual P 343 58.8966 50 -0.31 66
IV.FEMA.HNZ. 2023-04-13T04:10:13.28 0.3 undecidable manual S 340 25.2525 50 -0.25 71
IV.RM33.EHZ. 2023-04-13T04:10:13.94 0.3 undecidable manual S 170 26.9508 50 -0.02 74
IV.MOMA.HHZ. 2023-04-13T04:10:13.07 0.3 undecidable manual P 278 48.2184 50 -0.03 71
IV.ASSB.HHZ. 2023-04-13T04:10:13.37 0.3 undecidable manual P 309 52.0035 50 -0.32 66
IV.GIGS.HHZ. 2023-04-13T04:10:12.28 0.3 undecidable manual P 134 47.1195 50 -0.65 61
IV.CESX.HHZ. 2023-04-13T04:10:12.65 0.6 undecidable manual P 252 49.0176 50 -0.58 42
IV.MMO1.EHZ. 2023-04-13T04:10:12.30 0.3 undecidable manual S 39 21.6672 116 -0.21 72
IV.MML1.EHZ. 2023-04-13T04:10:12.12 0.1 undecidable manual P 340 43.2234 50 -0.21 92
IV.GAVE.EHZ. 2023-04-13T04:10:12.63 0.3 undecidable manual S 254 22.3554 115 -0.08 74
IV.ARRO.EHZ. 2023-04-13T04:10:11.42 0.3 undecidable manual P 240 37.0296 50 0.04 72
IV.SMA1.EHZ. 2023-04-13T04:10:11.94 0.3 undecidable manual S 132 19.4694 118 0.11 74
IV.CSP1.EHZ. 2023-04-13T04:10:11.45 0.1 negative manual P 6 38.3283 50 -0.12 95
IV.LNSS.HHZ. 2023-04-13T04:10:11.92 0.3 undecidable manual S 211 18.7701 119 0.32 71
IV.TERO.HHZ. 2023-04-13T04:10:11.36 0.1 negative manual P 111 38.9277 50 -0.32 91
IV.GUMA.HHZ. 2023-04-13T04:10:11.72 0.1 undecidable manual P 22 37.7289 50 0.23 93
7F.SIB2.EHZ. 2023-04-13T04:10:11.72 0.3 undecidable manual S 37 19.869 118 -0.21 72
IV.MF5.EHZ. 2023-04-13T04:10:11.48 0.3 undecidable manual P 43 36.2415 50 0.23 70
7F.SIB1.EHZ. 2023-04-13T04:10:11.64 0.3 undecidable manual S 29 18.6702 119 0.07 74
IV.MTRA.EHZ. 2023-04-13T04:10:11.55 0.3 undecidable manual S 87 19.4694 118 -0.28 71
IV.FDMO.HHZ. 2023-04-13T04:10:10.46 0.1 negative manual P 350 32.4453 50 -0.22 94
IV.CESI.HHZ. 2023-04-13T04:10:10.97 0.1 negative manual P 324 35.1426 50 -0.11 95
7F.SIB3.EHZ. 2023-04-13T04:10:10.88 0.3 undecidable manual S 33 16.7721 122 -0.14 74
IV.CAMP.HHZ. 2023-04-13T04:10:10.30 0.1 undecidable manual P 139 31.2465 50 -0.19 95
IV.GAVE.EHZ. 2023-04-13T04:10:09.16 0.1 negative manual P 254 22.3554 115 0.06 99
IV.FEMA.HNZ. 2023-04-13T04:10:09.50 0.3 undecidable manual P 340 25.2525 50 -0.07 73
IV.RM33.EHZ. 2023-04-13T04:10:09.77 0.1 negative manual P 170 26.9508 50 -0.05 98
IV.NRCA.HHZ. 2023-04-13T04:10:09.40 0.3 undecidable manual S 340 10.0788 136 0.21 73
7F.SIB2.EHZ. 2023-04-13T04:10:08.57 0.1 undecidable manual P 37 19.869 118 -0.08 99
IV.MMO1.EHZ. 2023-04-13T04:10:08.93 0.1 positive manual P 39 21.6672 116 -0.05 99
7F.SIB1.EHZ. 2023-04-13T04:10:08.55 0.1 undecidable manual P 29 18.6702 119 0.11 98
IV.MTRA.EHZ. 2023-04-13T04:10:08.55 0.1 undecidable manual P 87 19.4694 118 -0.04 100
IV.SMA1.EHZ. 2023-04-13T04:10:08.67 0.1 positive manual P 132 19.4694 118 0.08 99
7F.SIB3.EHZ. 2023-04-13T04:10:08.16 0.1 positive manual P 33 16.7721 122 0.04 100
IV.LNSS.HHZ. 2023-04-13T04:10:08.68 0.1 positive manual P 211 18.7701 119 0.22 96
IV.NRCA.HHZ. 2023-04-13T04:10:07.40 0.1 negative manual P 340 10.0788 136 0.33 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.HNN. ML:1.7 0.00035147790000000003 0.08 AML other m 2023-04-13T04:10:12.20
IV.MTRA.EHN. ML:1.7 0.00035759604999999997 0.08 AML other m 2023-04-13T04:10:12.21
IV.MTRA.EHE. ML:1.8 0.00052479725 0.0992 AML other m 2023-04-13T04:10:12.17
IV.LNSS.HNN. ML:1.5 0.00025913030000000004 0.1216 AML other m 2023-04-13T04:10:12.48
IV.MTRA.HNE. ML:1.8 0.0005143306 0.1088 AML other m 2023-04-13T04:10:12.64
IV.LNSS.HHN. ML:1.6 0.00027469325 0.1216 AML other m 2023-04-13T04:10:13.10
IV.MMO1.EHN. ML:1.5 0.000216103775 0.1408 AML other m 2023-04-13T04:10:13.11
IV.MMO1.EHE. ML:1.7 0.000367 0.22 AML other m 2023-04-13T04:10:13.05
IV.SMA1.EHE. ML:1.8 0.00046966419999999997 0.2208 AML other m 2023-04-13T04:10:13.33
IV.GAVE.HNN. ML:1.4 0.0001604023 0.1696 AML other m 2023-04-13T04:10:13.29
IV.GAVE.EHN. ML:2.0 0.00065370075 0.2016 AML other m 2023-04-13T04:10:13.39
IV.GAVE.HNE. ML:1.9 0.0004690356 0.1504 AML other m 2023-04-13T04:10:13.43
IV.GAVE.EHE. ML:1.9 0.00048650000000000006 0.14 AML other m 2023-04-13T04:10:13.37
IV.SMA1.EHN. ML:1.7 0.00041200000000000004 0.2 AML other m 2023-04-13T04:10:14.33
IV.RM33.HNN. ML:1.4 0.00014294214999999998 0.1088 AML other m 2023-04-13T04:10:14.57
IV.RM33.EHN. ML:1.4 0.00014614805000000001 0.1184 AML other m 2023-04-13T04:10:14.64
IV.RM33.HNE. ML:1.6 0.00023749369999999997 0.1504 AML other m 2023-04-13T04:10:14.97
IV.RM33.EHE. ML:1.6 0.00023799999999999998 1.86 AML other m 2023-04-13T04:10:14.98
IV.LNSS.HNE. ML:1.4 0.0002051992 0.128 AML other m 2023-04-13T04:10:15.08
IV.LNSS.HHE. ML:1.4 0.00022212785000000001 0.1376 AML other m 2023-04-13T04:10:15.08
IV.CAMP.HHE. ML:1.2 0.00007120000000000001 0.2 AML other m 2023-04-13T04:10:15.06
IV.CAMP.HHN. ML:1.4 0.00010385 0.24 AML other m 2023-04-13T04:10:15.09
IV.CESI.HNE. ML:1.4 0.00010225400000000001 0.16 AML other m 2023-04-13T04:10:16.26
IV.FDMO.HHE. ML:1.5 0.000142 0.26 AML other m 2023-04-13T04:10:16.39
IV.FDMO.HHN. ML:1.4 0.00011549999999999999 0.16 AML other m 2023-04-13T04:10:16.51
IV.CESI.HNN. ML:1.6 0.00014267350000000002 0.1792 AML other m 2023-04-13T04:10:16.87
IV.CSP1.EHE. ML:1.6 0.0001511353 0.16 AML other m 2023-04-13T04:10:17.40
IV.CESI.HHE. ML:1.5 0.00011649999999999999 0.4 AML other m 2023-04-13T04:10:17.35
IV.CSP1.EHN. ML:1.8 0.00020821625 0.16 AML other m 2023-04-13T04:10:17.42
IV.ARRO.EHN. ML:1.4 0.000090762675 0.1408 AML other m 2023-04-13T04:10:17.44
IV.TERO.HNN. ML:1.6 0.00015096480000000002 0.1184 AML other m 2023-04-13T04:10:17.57
IV.TERO.HHN. ML:1.5 0.000113301345 0.1184 AML other m 2023-04-13T04:10:17.57
IV.MF5.EHE. ML:1.4 0.000094838615 0.1984 AML other m 2023-04-13T04:10:17.94
IV.GUMA.HHE. ML:2.2 0.0005605 0.26 AML other m 2023-04-13T04:10:17.85
IV.GUMA.HNE. ML:2.0 0.00037549999999999997 1.66 AML other m 2023-04-13T04:10:17.86
IV.GUMA.HNN. ML:2.1 0.0004215 0.28 AML other m 2023-04-13T04:10:17.84
IV.GUMA.HHN. ML:1.9 0.00029596995 0.24 AML other m 2023-04-13T04:10:18.25
IV.CESI.HHN. ML:1.6 0.00016489975000000002 0.3392 AML other m 2023-04-13T04:10:18.03
IV.TERO.HHE. ML:1.7 0.00016500745 0.08 AML other m 2023-04-13T04:10:18.27
IV.TERO.HNE. ML:1.7 0.00016842987499999997 0.1088 AML other m 2023-04-13T04:10:18.28
IV.ARRO.EHE. ML:1.2 0.00006527705000000001 0.16 AML other m 2023-04-13T04:10:18.68
IV.MML1.EHE. ML:1.2 0.000052734705 0.16 AML other m 2023-04-13T04:10:19.25
IV.MF5.EHN. ML:1.2 0.000056684355 0.2208 AML other m 2023-04-13T04:10:19.56
IV.MML1.HNE. ML:1.4 0.000076692885 0.1824 AML other m 2023-04-13T04:10:19.48
IV.GIGS.HHN. ML:1.1 0.000035584115 0.1216 AML other m 2023-04-13T04:10:19.58
IV.MML1.HNN. ML:1.4 0.000068138895 0.1376 AML other m 2023-04-13T04:10:20.12
IV.MML1.EHN. ML:1.4 0.00007578275000000001 0.16 AML other m 2023-04-13T04:10:20.05
IV.GIGS.HHE. ML:1.0 0.00002697492 0.1376 AML other m 2023-04-13T04:10:20.31
IV.CESX.HHN. ML:1.2 0.00004475961 0.1824 AML other m 2023-04-13T04:10:20.57
IV.MOMA.HHN. ML:0.7 0.00001455 0.52 AML other m 2023-04-13T04:10:20.90
IV.MOMA.HHE. ML:2.1 0.00032 1.76 AML other m 2023-04-13T04:10:21.92
IV.MOMA.HNE. ML:2.1 0.00031 1.74 AML other m 2023-04-13T04:10:21.04
IV.MOMA.HNN. ML:1.8 0.00018084505 0.2016 AML other m 2023-04-13T04:10:21.19
IV.CESX.HHE. ML:1.2 0.00004158441 0.1792 AML other m 2023-04-13T04:10:21.39
IV.ASSB.HHE. ML:1.4 0.00006511005000000001 0.1984 AML other m 2023-04-13T04:10:22.80
IV.ASSB.HHN. ML:1.6 0.0000948 0.12 AML other m 2023-04-13T04:10:22.87
IV.SNTG.HHE. ML:1.2 0.00003515 0.18 AML other m 2023-04-13T04:10:23.78
IV.SNTG.HHN. ML:1.2 0.000029088185 0.1184 AML other m 2023-04-13T04:10:24.57
IV.ATCC.EHN. ML:1.3 0.00003805531 0.1184 AML other m 2023-04-13T04:10:25.98
IV.FAGN.HHE. ML:1.7 0.000102460395 0.2592 AML other m 2023-04-13T04:10:27.07
IV.ATCC.EHE. ML:1.5 0.000063509785 0.2208 AML other m 2023-04-13T04:10:27.72
IV.FAGN.HHN. ML:1.5 0.00006341498000000001 0.2016 AML other m 2023-04-13T04:10:27.98
IV.CING.HHN. ML:1.2 0.000025730765000000002 0.1408 AML other m 2023-04-13T04:10:28.11
IV.CING.HHE. ML:1.0 0.0000172269985 0.0992 AML other m 2023-04-13T04:10:28.04
IV.VCEL.EHN. ML:1.6 0.00007156304499999999 0.2016 AML other m 2023-04-13T04:10:28.63
IV.T0110.HHE. ML:1.5 0.000043264235 0.2208 AML other m 2023-04-13T04:10:28.88
IV.VCEL.EHE. ML:1.7 0.000091242565 0.3008 AML other m 2023-04-13T04:10:28.95
IV.T0110.HHN. ML:1.5 0.00004561244000000001 0.2208 AML other m 2023-04-13T04:10:30.44
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